drm/gma500: Remove Medfield support

Medfield is an outdated mobile platform with apparently no users left.
Remove it from gma500.

Signed-off-by: Thomas Zimmermann <[e-mail]>
Signed-off-by: Patrik Jakobsson <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]
(cherry picked from commit b51035c200bd3423ae5b6b98b54735ef424dc746)
Signed-off-by: Maarten Lankhorst <[e-mail]>

drivers/gpu/drm/gma500/Kconfig

···
 	help
 	  Say yes to include basic support for Intel GMA3600/3650 (Intel
 	  Cedar Trail) platforms.
-
-config DRM_MEDFIELD
-	bool "Intel Medfield support (Experimental)"
-	depends on DRM_GMA500 && X86_INTEL_MID
-	help
-	  Say yes to include support for the Intel Medfield platform.
-

drivers/gpu/drm/gma500/Makefile

···
 	  oaktrail_hdmi.o \
 	  oaktrail_hdmi_i2c.o
 
-gma500_gfx-$(CONFIG_DRM_MEDFIELD) += mdfld_device.o \
-	  mdfld_output.o \
-	  mdfld_intel_display.o \
-	  mdfld_dsi_output.o \
-	  mdfld_dsi_dpi.o \
-	  mdfld_dsi_pkg_sender.o \
-	  mdfld_tpo_vid.o \
-	  mdfld_tmd_vid.o \
-	  tc35876x-dsi-lvds.o
-
 obj-$(CONFIG_DRM_GMA500) += gma500_gfx.o

drivers/gpu/drm/gma500/cdv_intel_hdmi.c

···
  *
  * Authors:
  *	jim liu <[e-mail]>
- *
- * FIXME:
- *	We should probably make this generic and share it with Medfield
  */
 
 #include <linux/pm_runtime.h>
···
 	bool has_hdmi_audio;
 	/* Should set this when detect hotplug */
 	bool hdmi_device_connected;
-	struct mdfld_hdmi_i2c *i2c_bus;
 	struct i2c_adapter *hdmi_i2c_adapter;	/* for control functions */
 	struct drm_device *dev;
 };

drivers/gpu/drm/gma500/mdfld_device.c

···
-// SPDX-License-Identifier: GPL-2.0-only
-/**************************************************************************
- * Copyright (c) 2011, Intel Corporation.
- * All Rights Reserved.
- *
- **************************************************************************/
-
-#include <linux/delay.h>
-#include <linux/gpio/machine.h>
-
-#include <asm/intel_scu_ipc.h>
-
-#include "mdfld_dsi_output.h"
-#include "mdfld_output.h"
-#include "mid_bios.h"
-#include "psb_drv.h"
-#include "tc35876x-dsi-lvds.h"
-
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-
-#define MRST_BLC_MAX_PWM_REG_FREQ	    0xFFFF
-#define BLC_PWM_PRECISION_FACTOR 100	/* 10000000 */
-#define BLC_PWM_FREQ_CALC_CONSTANT 32
-#define MHz 1000000
-#define BRIGHTNESS_MIN_LEVEL 1
-#define BRIGHTNESS_MAX_LEVEL 100
-#define BRIGHTNESS_MASK	0xFF
-#define BLC_POLARITY_NORMAL 0
-#define BLC_POLARITY_INVERSE 1
-#define BLC_ADJUSTMENT_MAX 100
-
-#define MDFLD_BLC_PWM_PRECISION_FACTOR    10
-#define MDFLD_BLC_MAX_PWM_REG_FREQ        0xFFFE
-#define MDFLD_BLC_MIN_PWM_REG_FREQ        0x2
-
-#define MDFLD_BACKLIGHT_PWM_POLARITY_BIT_CLEAR (0xFFFE)
-#define MDFLD_BACKLIGHT_PWM_CTL_SHIFT	(16)
-
-static struct backlight_device *mdfld_backlight_device;
-
-int mdfld_set_brightness(struct backlight_device *bd)
-{
-	struct drm_device *dev =
-		(struct drm_device *)bl_get_data(mdfld_backlight_device);
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	int level = bd->props.brightness;
-
-	DRM_DEBUG_DRIVER("backlight level set to %d\n", level);
-
-	/* Perform value bounds checking */
-	if (level < BRIGHTNESS_MIN_LEVEL)
-		level = BRIGHTNESS_MIN_LEVEL;
-
-	if (gma_power_begin(dev, false)) {
-		u32 adjusted_level = 0;
-
-		/*
-		 * Adjust the backlight level with the percent in
-		 * dev_priv->blc_adj2
-		 */
-		adjusted_level = level * dev_priv->blc_adj2;
-		adjusted_level = adjusted_level / BLC_ADJUSTMENT_MAX;
-		dev_priv->brightness_adjusted = adjusted_level;
-
-		if (mdfld_get_panel_type(dev, 0) == TC35876X) {
-			if (dev_priv->dpi_panel_on[0] ||
-					dev_priv->dpi_panel_on[2])
-				tc35876x_brightness_control(dev,
-						dev_priv->brightness_adjusted);
-		} else {
-			if (dev_priv->dpi_panel_on[0])
-				mdfld_dsi_brightness_control(dev, 0,
-						dev_priv->brightness_adjusted);
-		}
-
-		if (dev_priv->dpi_panel_on[2])
-			mdfld_dsi_brightness_control(dev, 2,
-					dev_priv->brightness_adjusted);
-		gma_power_end(dev);
-	}
-
-	/* cache the brightness for later use */
-	dev_priv->brightness = level;
-	return 0;
-}
-
-static int mdfld_get_brightness(struct backlight_device *bd)
-{
-	struct drm_device *dev =
-		(struct drm_device *)bl_get_data(mdfld_backlight_device);
-	struct drm_psb_private *dev_priv = dev->dev_private;
-
-	DRM_DEBUG_DRIVER("brightness = 0x%x \n", dev_priv->brightness);
-
-	/* return locally cached var instead of HW read (due to DPST etc.) */
-	return dev_priv->brightness;
-}
-
-static const struct backlight_ops mdfld_ops = {
-	.get_brightness = mdfld_get_brightness,
-	.update_status  = mdfld_set_brightness,
-};
-
-static int device_backlight_init(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv = (struct drm_psb_private *)
-		dev->dev_private;
-
-	dev_priv->blc_adj1 = BLC_ADJUSTMENT_MAX;
-	dev_priv->blc_adj2 = BLC_ADJUSTMENT_MAX;
-
-	return 0;
-}
-
-static int mdfld_backlight_init(struct drm_device *dev)
-{
-	struct backlight_properties props;
-	int ret = 0;
-
-	memset(&props, 0, sizeof(struct backlight_properties));
-	props.max_brightness = BRIGHTNESS_MAX_LEVEL;
-	props.type = BACKLIGHT_PLATFORM;
-	mdfld_backlight_device = backlight_device_register("mdfld-bl",
-				NULL, (void *)dev, &mdfld_ops, &props);
-
-	if (IS_ERR(mdfld_backlight_device))
-		return PTR_ERR(mdfld_backlight_device);
-
-	ret = device_backlight_init(dev);
-	if (ret)
-		return ret;
-
-	mdfld_backlight_device->props.brightness = BRIGHTNESS_MAX_LEVEL;
-	mdfld_backlight_device->props.max_brightness = BRIGHTNESS_MAX_LEVEL;
-	backlight_update_status(mdfld_backlight_device);
-	return 0;
-}
-#endif
-
-struct backlight_device *mdfld_get_backlight_device(void)
-{
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-	return mdfld_backlight_device;
-#else
-	return NULL;
-#endif
-}
-
-/*
- * mdfld_save_display_registers
- *
- * Description: We are going to suspend so save current display
- * register state.
- *
- * Notes: FIXME_JLIU7 need to add the support for DPI MIPI & HDMI audio
- */
-static int mdfld_save_display_registers(struct drm_device *dev, int pipenum)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct medfield_state *regs = &dev_priv->regs.mdfld;
-	struct psb_pipe *pipe = &dev_priv->regs.pipe[pipenum];
-	const struct psb_offset *map = &dev_priv->regmap[pipenum];
-	int i;
-	u32 *mipi_val;
-
-	/* register */
-	u32 mipi_reg = MIPI;
-
-	switch (pipenum) {
-	case 0:
-		mipi_val = &regs->saveMIPI;
-		break;
-	case 1:
-		mipi_val = &regs->saveMIPI;
-		break;
-	case 2:
-		/* register */
-		mipi_reg = MIPI_C;
-		/* pointer to values */
-		mipi_val = &regs->saveMIPI_C;
-		break;
-	default:
-		DRM_ERROR("%s, invalid pipe number.\n", __func__);
-		return -EINVAL;
-	}
-
-	/* Pipe & plane A info */
-	pipe->dpll = PSB_RVDC32(map->dpll);
-	pipe->fp0 = PSB_RVDC32(map->fp0);
-	pipe->conf = PSB_RVDC32(map->conf);
-	pipe->htotal = PSB_RVDC32(map->htotal);
-	pipe->hblank = PSB_RVDC32(map->hblank);
-	pipe->hsync = PSB_RVDC32(map->hsync);
-	pipe->vtotal = PSB_RVDC32(map->vtotal);
-	pipe->vblank = PSB_RVDC32(map->vblank);
-	pipe->vsync = PSB_RVDC32(map->vsync);
-	pipe->src = PSB_RVDC32(map->src);
-	pipe->stride = PSB_RVDC32(map->stride);
-	pipe->linoff = PSB_RVDC32(map->linoff);
-	pipe->tileoff = PSB_RVDC32(map->tileoff);
-	pipe->size = PSB_RVDC32(map->size);
-	pipe->pos = PSB_RVDC32(map->pos);
-	pipe->surf = PSB_RVDC32(map->surf);
-	pipe->cntr = PSB_RVDC32(map->cntr);
-	pipe->status = PSB_RVDC32(map->status);
-
-	/*save palette (gamma) */
-	for (i = 0; i < 256; i++)
-		pipe->palette[i] = PSB_RVDC32(map->palette + (i << 2));
-
-	if (pipenum == 1) {
-		regs->savePFIT_CONTROL = PSB_RVDC32(PFIT_CONTROL);
-		regs->savePFIT_PGM_RATIOS = PSB_RVDC32(PFIT_PGM_RATIOS);
-
-		regs->saveHDMIPHYMISCCTL = PSB_RVDC32(HDMIPHYMISCCTL);
-		regs->saveHDMIB_CONTROL = PSB_RVDC32(HDMIB_CONTROL);
-		return 0;
-	}
-
-	*mipi_val = PSB_RVDC32(mipi_reg);
-	return 0;
-}
-
-/*
- * mdfld_restore_display_registers
- *
- * Description: We are going to resume so restore display register state.
- *
- * Notes: FIXME_JLIU7 need to add the support for DPI MIPI & HDMI audio
- */
-static int mdfld_restore_display_registers(struct drm_device *dev, int pipenum)
-{
-	/* To get  panel out of ULPS mode. */
-	u32 temp = 0;
-	u32 device_ready_reg = DEVICE_READY_REG;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct mdfld_dsi_config *dsi_config = NULL;
-	struct medfield_state *regs = &dev_priv->regs.mdfld;
-	struct psb_pipe *pipe = &dev_priv->regs.pipe[pipenum];
-	const struct psb_offset *map = &dev_priv->regmap[pipenum];
-	u32 i;
-	u32 dpll;
-	u32 timeout = 0;
-
-	/* register */
-	u32 mipi_reg = MIPI;
-
-	/* values */
-	u32 dpll_val = pipe->dpll;
-	u32 mipi_val = regs->saveMIPI;
-
-	switch (pipenum) {
-	case 0:
-		dpll_val &= ~DPLL_VCO_ENABLE;
-		dsi_config = dev_priv->dsi_configs[0];
-		break;
-	case 1:
-		dpll_val &= ~DPLL_VCO_ENABLE;
-		break;
-	case 2:
-		mipi_reg = MIPI_C;
-		mipi_val = regs->saveMIPI_C;
-		dsi_config = dev_priv->dsi_configs[1];
-		break;
-	default:
-		DRM_ERROR("%s, invalid pipe number.\n", __func__);
-		return -EINVAL;
-	}
-
-	/*make sure VGA plane is off. it initializes to on after reset!*/
-	PSB_WVDC32(0x80000000, VGACNTRL);
-
-	if (pipenum == 1) {
-		PSB_WVDC32(dpll_val & ~DPLL_VCO_ENABLE, map->dpll);
-		PSB_RVDC32(map->dpll);
-
-		PSB_WVDC32(pipe->fp0, map->fp0);
-	} else {
-
-		dpll = PSB_RVDC32(map->dpll);
-
-		if (!(dpll & DPLL_VCO_ENABLE)) {
-
-			/* When ungating power of DPLL, needs to wait 0.5us
-			   before enable the VCO */
-			if (dpll & MDFLD_PWR_GATE_EN) {
-				dpll &= ~MDFLD_PWR_GATE_EN;
-				PSB_WVDC32(dpll, map->dpll);
-				/* FIXME_MDFLD PO - change 500 to 1 after PO */
-				udelay(500);
-			}
-
-			PSB_WVDC32(pipe->fp0, map->fp0);
-			PSB_WVDC32(dpll_val, map->dpll);
-			/* FIXME_MDFLD PO - change 500 to 1 after PO */
-			udelay(500);
-
-			dpll_val |= DPLL_VCO_ENABLE;
-			PSB_WVDC32(dpll_val, map->dpll);
-			PSB_RVDC32(map->dpll);
-
-			/* wait for DSI PLL to lock */
-			while (timeout < 20000 &&
-			  !(PSB_RVDC32(map->conf) & PIPECONF_DSIPLL_LOCK)) {
-				udelay(150);
-				timeout++;
-			}
-
-			if (timeout == 20000) {
-				DRM_ERROR("%s, can't lock DSIPLL.\n",
-								__func__);
-				return -EINVAL;
-			}
-		}
-	}
-	/* Restore mode */
-	PSB_WVDC32(pipe->htotal, map->htotal);
-	PSB_WVDC32(pipe->hblank, map->hblank);
-	PSB_WVDC32(pipe->hsync, map->hsync);
-	PSB_WVDC32(pipe->vtotal, map->vtotal);
-	PSB_WVDC32(pipe->vblank, map->vblank);
-	PSB_WVDC32(pipe->vsync, map->vsync);
-	PSB_WVDC32(pipe->src, map->src);
-	PSB_WVDC32(pipe->status, map->status);
-
-	/*set up the plane*/
-	PSB_WVDC32(pipe->stride, map->stride);
-	PSB_WVDC32(pipe->linoff, map->linoff);
-	PSB_WVDC32(pipe->tileoff, map->tileoff);
-	PSB_WVDC32(pipe->size, map->size);
-	PSB_WVDC32(pipe->pos, map->pos);
-	PSB_WVDC32(pipe->surf, map->surf);
-
-	if (pipenum == 1) {
-		/* restore palette (gamma) */
-		/* udelay(50000); */
-		for (i = 0; i < 256; i++)
-			PSB_WVDC32(pipe->palette[i], map->palette + (i << 2));
-
-		PSB_WVDC32(regs->savePFIT_CONTROL, PFIT_CONTROL);
-		PSB_WVDC32(regs->savePFIT_PGM_RATIOS, PFIT_PGM_RATIOS);
-
-		/*TODO: resume HDMI port */
-
-		/*TODO: resume pipe*/
-
-		/*enable the plane*/
-		PSB_WVDC32(pipe->cntr & ~DISPLAY_PLANE_ENABLE, map->cntr);
-
-		return 0;
-	}
-
-	/*set up pipe related registers*/
-	PSB_WVDC32(mipi_val, mipi_reg);
-
-	/*setup MIPI adapter + MIPI IP registers*/
-	if (dsi_config)
-		mdfld_dsi_controller_init(dsi_config, pipenum);
-
-	if (in_atomic() || in_interrupt())
-		mdelay(20);
-	else
-		msleep(20);
-
-	/*enable the plane*/
-	PSB_WVDC32(pipe->cntr, map->cntr);
-
-	if (in_atomic() || in_interrupt())
-		mdelay(20);
-	else
-		msleep(20);
-
-	/* LP Hold Release */
-	temp = REG_READ(mipi_reg);
-	temp |= LP_OUTPUT_HOLD_RELEASE;
-	REG_WRITE(mipi_reg, temp);
-	mdelay(1);
-
-
-	/* Set DSI host to exit from Utra Low Power State */
-	temp = REG_READ(device_ready_reg);
-	temp &= ~ULPS_MASK;
-	temp |= 0x3;
-	temp |= EXIT_ULPS_DEV_READY;
-	REG_WRITE(device_ready_reg, temp);
-	mdelay(1);
-
-	temp = REG_READ(device_ready_reg);
-	temp &= ~ULPS_MASK;
-	temp |= EXITING_ULPS;
-	REG_WRITE(device_ready_reg, temp);
-	mdelay(1);
-
-	/*enable the pipe*/
-	PSB_WVDC32(pipe->conf, map->conf);
-
-	/* restore palette (gamma) */
-	/* udelay(50000); */
-	for (i = 0; i < 256; i++)
-		PSB_WVDC32(pipe->palette[i], map->palette + (i << 2));
-
-	return 0;
-}
-
-static int mdfld_save_registers(struct drm_device *dev)
-{
-	/* mdfld_save_cursor_overlay_registers(dev); */
-	mdfld_save_display_registers(dev, 0);
-	mdfld_save_display_registers(dev, 2);
-	mdfld_disable_crtc(dev, 0);
-	mdfld_disable_crtc(dev, 2);
-
-	return 0;
-}
-
-static int mdfld_restore_registers(struct drm_device *dev)
-{
-	mdfld_restore_display_registers(dev, 2);
-	mdfld_restore_display_registers(dev, 0);
-	/* mdfld_restore_cursor_overlay_registers(dev); */
-
-	return 0;
-}
-
-static int mdfld_power_down(struct drm_device *dev)
-{
-	/* FIXME */
-	return 0;
-}
-
-static int mdfld_power_up(struct drm_device *dev)
-{
-	/* FIXME */
-	return 0;
-}
-
-/* Medfield  */
-static const struct psb_offset mdfld_regmap[3] = {
-	{
-		.fp0 = MRST_FPA0,
-		.fp1 = MRST_FPA1,
-		.cntr = DSPACNTR,
-		.conf = PIPEACONF,
-		.src = PIPEASRC,
-		.dpll = MRST_DPLL_A,
-		.htotal = HTOTAL_A,
-		.hblank = HBLANK_A,
-		.hsync = HSYNC_A,
-		.vtotal = VTOTAL_A,
-		.vblank = VBLANK_A,
-		.vsync = VSYNC_A,
-		.stride = DSPASTRIDE,
-		.size = DSPASIZE,
-		.pos = DSPAPOS,
-		.surf = DSPASURF,
-		.addr = MRST_DSPABASE,
-		.status = PIPEASTAT,
-		.linoff = DSPALINOFF,
-		.tileoff = DSPATILEOFF,
-		.palette = PALETTE_A,
-	},
-	{
-		.fp0 = MDFLD_DPLL_DIV0,
-		.cntr = DSPBCNTR,
-		.conf = PIPEBCONF,
-		.src = PIPEBSRC,
-		.dpll = MDFLD_DPLL_B,
-		.htotal = HTOTAL_B,
-		.hblank = HBLANK_B,
-		.hsync = HSYNC_B,
-		.vtotal = VTOTAL_B,
-		.vblank = VBLANK_B,
-		.vsync = VSYNC_B,
-		.stride = DSPBSTRIDE,
-		.size = DSPBSIZE,
-		.pos = DSPBPOS,
-		.surf = DSPBSURF,
-		.addr = MRST_DSPBBASE,
-		.status = PIPEBSTAT,
-		.linoff = DSPBLINOFF,
-		.tileoff = DSPBTILEOFF,
-		.palette = PALETTE_B,
-	},
-	{
-		.fp0 = MRST_FPA0,	/* This is what the old code did ?? */
-		.cntr = DSPCCNTR,
-		.conf = PIPECCONF,
-		.src = PIPECSRC,
-		/* No DPLL_C */
-		.dpll = MRST_DPLL_A,
-		.htotal = HTOTAL_C,
-		.hblank = HBLANK_C,
-		.hsync = HSYNC_C,
-		.vtotal = VTOTAL_C,
-		.vblank = VBLANK_C,
-		.vsync = VSYNC_C,
-		.stride = DSPCSTRIDE,
-		.size = DSPBSIZE,
-		.pos = DSPCPOS,
-		.surf = DSPCSURF,
-		.addr = MDFLD_DSPCBASE,
-		.status = PIPECSTAT,
-		.linoff = DSPCLINOFF,
-		.tileoff = DSPCTILEOFF,
-		.palette = PALETTE_C,
-	},
-};
-
-/*
- * The GPIO lines for resetting DSI pipe 0 and 2 are available in the
- * PCI device 0000:00:0c.0 on the Medfield.
- */
-static struct gpiod_lookup_table mdfld_dsi_pipe_gpio_table = {
-	.table  = {
-		GPIO_LOOKUP("0000:00:0c.0", 128, "dsi-pipe0-reset",
-			    GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("0000:00:0c.0", 34, "dsi-pipe2-reset",
-			    GPIO_ACTIVE_HIGH),
-		{ },
-	},
-};
-
-static int mdfld_chip_setup(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct pci_dev *pdev = to_pci_dev(dev->dev);
-
-	if (pci_enable_msi(pdev))
-		dev_warn(dev->dev, "Enabling MSI failed!\n");
-	dev_priv->regmap = mdfld_regmap;
-
-	/* Associate the GPIO lines with the DRM device */
-	mdfld_dsi_pipe_gpio_table.dev_id = dev_name(dev->dev);
-	gpiod_add_lookup_table(&mdfld_dsi_pipe_gpio_table);
-
-	return mid_chip_setup(dev);
-}
-
-const struct psb_ops mdfld_chip_ops = {
-	.name = "mdfld",
-	.pipes = 3,
-	.crtcs = 3,
-	.lvds_mask = (1 << 1),
-	.hdmi_mask = (1 << 1),
-	.cursor_needs_phys = 0,
-	.sgx_offset = MRST_SGX_OFFSET,
-
-	.chip_setup = mdfld_chip_setup,
-	.crtc_helper = &mdfld_helper_funcs,
-	.crtc_funcs = &psb_intel_crtc_funcs,
-
-	.output_init = mdfld_output_init,
-
-#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
-	.backlight_init = mdfld_backlight_init,
-#endif
-
-	.save_regs = mdfld_save_registers,
-	.restore_regs = mdfld_restore_registers,
-	.save_crtc = gma_crtc_save,
-	.restore_crtc = gma_crtc_restore,
-	.power_down = mdfld_power_down,
-	.power_up = mdfld_power_up,
-};

drivers/gpu/drm/gma500/mdfld_dsi_dpi.c

···
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * jim liu <[e-mail]>
- * Jackie Li<[e-mail]>
- */
-
-#include <linux/delay.h>
-
-#include <drm/drm_simple_kms_helper.h>
-
-#include "mdfld_dsi_dpi.h"
-#include "mdfld_dsi_pkg_sender.h"
-#include "mdfld_output.h"
-#include "psb_drv.h"
-#include "tc35876x-dsi-lvds.h"
-
-static void mdfld_dsi_dpi_shut_down(struct mdfld_dsi_dpi_output *output,
-								int pipe);
-
-static void mdfld_wait_for_HS_DATA_FIFO(struct drm_device *dev, u32 pipe)
-{
-	u32 gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
-	int timeout = 0;
-
-	udelay(500);
-
-	/* This will time out after approximately 2+ seconds */
-	while ((timeout < 20000) &&
-		(REG_READ(gen_fifo_stat_reg) & DSI_FIFO_GEN_HS_DATA_FULL)) {
-		udelay(100);
-		timeout++;
-	}
-
-	if (timeout == 20000)
-		DRM_INFO("MIPI: HS Data FIFO was never cleared!\n");
-}
-
-static void mdfld_wait_for_HS_CTRL_FIFO(struct drm_device *dev, u32 pipe)
-{
-	u32 gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
-	int timeout = 0;
-
-	udelay(500);
-
-	/* This will time out after approximately 2+ seconds */
-	while ((timeout < 20000) && (REG_READ(gen_fifo_stat_reg)
-					& DSI_FIFO_GEN_HS_CTRL_FULL)) {
-		udelay(100);
-		timeout++;
-	}
-	if (timeout == 20000)
-		DRM_INFO("MIPI: HS CMD FIFO was never cleared!\n");
-}
-
-static void mdfld_wait_for_DPI_CTRL_FIFO(struct drm_device *dev, u32 pipe)
-{
-	u32 gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
-	int timeout = 0;
-
-	udelay(500);
-
-	/* This will time out after approximately 2+ seconds */
-	while ((timeout < 20000) && ((REG_READ(gen_fifo_stat_reg) &
-					DPI_FIFO_EMPTY) != DPI_FIFO_EMPTY)) {
-		udelay(100);
-		timeout++;
-	}
-
-	if (timeout == 20000)
-		DRM_ERROR("MIPI: DPI FIFO was never cleared\n");
-}
-
-static void mdfld_wait_for_SPL_PKG_SENT(struct drm_device *dev, u32 pipe)
-{
-	u32 intr_stat_reg = MIPI_INTR_STAT_REG(pipe);
-	int timeout = 0;
-
-	udelay(500);
-
-	/* This will time out after approximately 2+ seconds */
-	while ((timeout < 20000) && (!(REG_READ(intr_stat_reg)
-					& DSI_INTR_STATE_SPL_PKG_SENT))) {
-		udelay(100);
-		timeout++;
-	}
-
-	if (timeout == 20000)
-                DRM_ERROR("MIPI: SPL_PKT_SENT_INTERRUPT was not sent successfully!\n");
-}
-
-/* For TC35876X */
-
-static void dsi_set_device_ready_state(struct drm_device *dev, int state,
-				int pipe)
-{
-	REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), !!state, 0, 0);
-}
-
-static void dsi_set_pipe_plane_enable_state(struct drm_device *dev,
-							int state, int pipe)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	u32 pipeconf_reg = PIPEACONF;
-	u32 dspcntr_reg = DSPACNTR;
-
-	u32 dspcntr = dev_priv->dspcntr[pipe];
-	u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
-
-	if (pipe) {
-		pipeconf_reg = PIPECCONF;
-		dspcntr_reg = DSPCCNTR;
-	} else
-		mipi &= (~0x03);
-
-	if (state) {
-		/*Set up pipe */
-		REG_WRITE(pipeconf_reg, BIT(31));
-
-		if (REG_BIT_WAIT(pipeconf_reg, 1, 30))
-			dev_err(dev->dev, "%s: Pipe enable timeout\n",
-				__func__);
-
-		/*Set up display plane */
-		REG_WRITE(dspcntr_reg, dspcntr);
-	} else {
-		u32 dspbase_reg = pipe ? MDFLD_DSPCBASE : MRST_DSPABASE;
-
-		/* Put DSI lanes to ULPS to disable pipe */
-		REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), 2, 2, 1);
-		REG_READ(MIPI_DEVICE_READY_REG(pipe)); /* posted write? */
-
-		/* LP Hold */
-		REG_FLD_MOD(MIPI_PORT_CONTROL(pipe), 0, 16, 16);
-		REG_READ(MIPI_PORT_CONTROL(pipe)); /* posted write? */
-
-		/* Disable display plane */
-		REG_FLD_MOD(dspcntr_reg, 0, 31, 31);
-
-		/* Flush the plane changes ??? posted write? */
-		REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
-		REG_READ(dspbase_reg);
-
-		/* Disable PIPE */
-		REG_FLD_MOD(pipeconf_reg, 0, 31, 31);
-
-		if (REG_BIT_WAIT(pipeconf_reg, 0, 30))
-			dev_err(dev->dev, "%s: Pipe disable timeout\n",
-				__func__);
-
-		if (REG_BIT_WAIT(MIPI_GEN_FIFO_STAT_REG(pipe), 1, 28))
-			dev_err(dev->dev, "%s: FIFO not empty\n",
-				__func__);
-	}
-}
-
-static void mdfld_dsi_configure_down(struct mdfld_dsi_encoder *dsi_encoder,
-								int pipe)
-{
-	struct mdfld_dsi_dpi_output *dpi_output =
-				MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
-	struct mdfld_dsi_config *dsi_config =
-				mdfld_dsi_encoder_get_config(dsi_encoder);
-	struct drm_device *dev = dsi_config->dev;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-
-	if (!dev_priv->dpi_panel_on[pipe]) {
-		dev_err(dev->dev, "DPI panel is already off\n");
-		return;
-	}
-	tc35876x_toshiba_bridge_panel_off(dev);
-	tc35876x_set_bridge_reset_state(dev, 1);
-	dsi_set_pipe_plane_enable_state(dev, 0, pipe);
-	mdfld_dsi_dpi_shut_down(dpi_output, pipe);
-	dsi_set_device_ready_state(dev, 0, pipe);
-}
-
-static void mdfld_dsi_configure_up(struct mdfld_dsi_encoder *dsi_encoder,
-								int pipe)
-{
-	struct mdfld_dsi_dpi_output *dpi_output =
-				MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
-	struct mdfld_dsi_config *dsi_config =
-				mdfld_dsi_encoder_get_config(dsi_encoder);
-	struct drm_device *dev = dsi_config->dev;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-
-	if (dev_priv->dpi_panel_on[pipe]) {
-		dev_err(dev->dev, "DPI panel is already on\n");
-		return;
-	}
-
-	/* For resume path sequence */
-	mdfld_dsi_dpi_shut_down(dpi_output, pipe);
-	dsi_set_device_ready_state(dev, 0, pipe);
-
-	dsi_set_device_ready_state(dev, 1, pipe);
-	tc35876x_set_bridge_reset_state(dev, 0);
-	tc35876x_configure_lvds_bridge(dev);
-	mdfld_dsi_dpi_turn_on(dpi_output, pipe);  /* Send turn on command */
-	dsi_set_pipe_plane_enable_state(dev, 1, pipe);
-}
-/* End for TC35876X */
-
-/* ************************************************************************* *\
- * FUNCTION: mdfld_dsi_tpo_ic_init
- *
- * DESCRIPTION:  This function is called only by mrst_dsi_mode_set and
- *               restore_display_registers.  since this function does not
- *               acquire the mutex, it is important that the calling function
- *               does!
-\* ************************************************************************* */
-static void mdfld_dsi_tpo_ic_init(struct mdfld_dsi_config *dsi_config, u32 pipe)
-{
-	struct drm_device *dev = dsi_config->dev;
-	u32 dcsChannelNumber = dsi_config->channel_num;
-	u32 gen_data_reg = MIPI_HS_GEN_DATA_REG(pipe);
-	u32 gen_ctrl_reg = MIPI_HS_GEN_CTRL_REG(pipe);
-	u32 gen_ctrl_val = GEN_LONG_WRITE;
-
-	DRM_INFO("Enter mrst init TPO MIPI display.\n");
-
-	gen_ctrl_val |= dcsChannelNumber << DCS_CHANNEL_NUMBER_POS;
-
-	/* Flip page order */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x00008036);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x02 << WORD_COUNTS_POS));
-
-	/* 0xF0 */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x005a5af0);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
-
-	/* Write protection key */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x005a5af1);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
-
-	/* 0xFC */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x005a5afc);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
-
-	/* 0xB7 */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x770000b7);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x00000044);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x05 << WORD_COUNTS_POS));
-
-	/* 0xB6 */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x000a0ab6);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
-
-	/* 0xF2 */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x081010f2);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x4a070708);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x000000c5);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
-
-	/* 0xF8 */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x024003f8);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x01030a04);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x0e020220);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x00000004);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x0d << WORD_COUNTS_POS));
-
-	/* 0xE2 */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x398fc3e2);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x0000916f);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x06 << WORD_COUNTS_POS));
-
-	/* 0xB0 */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x000000b0);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x02 << WORD_COUNTS_POS));
-
-	/* 0xF4 */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x240242f4);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x78ee2002);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x2a071050);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x507fee10);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x10300710);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x14 << WORD_COUNTS_POS));
-
-	/* 0xBA */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x19fe07ba);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x101c0a31);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x00000010);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
-
-	/* 0xBB */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x28ff07bb);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x24280a31);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x00000034);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x09 << WORD_COUNTS_POS));
-
-	/* 0xFB */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x535d05fb);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x1b1a2130);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x221e180e);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x131d2120);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x535d0508);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x1c1a2131);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x231f160d);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x111b2220);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x535c2008);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x1f1d2433);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x2c251a10);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x2c34372d);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x00000023);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x31 << WORD_COUNTS_POS));
-
-	/* 0xFA */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x525c0bfa);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x1c1c232f);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x2623190e);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x18212625);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x545d0d0e);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x1e1d2333);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x26231a10);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x1a222725);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x545d280f);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x21202635);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x31292013);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x31393d33);
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x00000029);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x31 << WORD_COUNTS_POS));
-
-	/* Set DM */
-	mdfld_wait_for_HS_DATA_FIFO(dev, pipe);
-	REG_WRITE(gen_data_reg, 0x000100f7);
-	mdfld_wait_for_HS_CTRL_FIFO(dev, pipe);
-	REG_WRITE(gen_ctrl_reg, gen_ctrl_val | (0x03 << WORD_COUNTS_POS));
-}
-
-static u16 mdfld_dsi_dpi_to_byte_clock_count(int pixel_clock_count,
-						int num_lane, int bpp)
-{
-	return (u16)((pixel_clock_count * bpp) / (num_lane * 8));
-}
-
-/*
- * Calculate the dpi time basing on a given drm mode @mode
- * return 0 on success.
- * FIXME: I was using proposed mode value for calculation, may need to
- * use crtc mode values later
- */
-int mdfld_dsi_dpi_timing_calculation(struct drm_display_mode *mode,
-				struct mdfld_dsi_dpi_timing *dpi_timing,
-				int num_lane, int bpp)
-{
-	int pclk_hsync, pclk_hfp, pclk_hbp, pclk_hactive;
-	int pclk_vsync, pclk_vfp, pclk_vbp;
-
-	pclk_hactive = mode->hdisplay;
-	pclk_hfp = mode->hsync_start - mode->hdisplay;
-	pclk_hsync = mode->hsync_end - mode->hsync_start;
-	pclk_hbp = mode->htotal - mode->hsync_end;
-
-	pclk_vfp = mode->vsync_start - mode->vdisplay;
-	pclk_vsync = mode->vsync_end - mode->vsync_start;
-	pclk_vbp = mode->vtotal - mode->vsync_end;
-
-	/*
-	 * byte clock counts were calculated by following formula
-	 * bclock_count = pclk_count * bpp / num_lane / 8
-	 */
-	dpi_timing->hsync_count = mdfld_dsi_dpi_to_byte_clock_count(
-						pclk_hsync, num_lane, bpp);
-	dpi_timing->hbp_count = mdfld_dsi_dpi_to_byte_clock_count(
-						pclk_hbp, num_lane, bpp);
-	dpi_timing->hfp_count = mdfld_dsi_dpi_to_byte_clock_count(
-						pclk_hfp, num_lane, bpp);
-	dpi_timing->hactive_count = mdfld_dsi_dpi_to_byte_clock_count(
-						pclk_hactive, num_lane, bpp);
-	dpi_timing->vsync_count = mdfld_dsi_dpi_to_byte_clock_count(
-						pclk_vsync, num_lane, bpp);
-	dpi_timing->vbp_count = mdfld_dsi_dpi_to_byte_clock_count(
-						pclk_vbp, num_lane, bpp);
-	dpi_timing->vfp_count = mdfld_dsi_dpi_to_byte_clock_count(
-						pclk_vfp, num_lane, bpp);
-
-	return 0;
-}
-
-void mdfld_dsi_dpi_controller_init(struct mdfld_dsi_config *dsi_config,
-								int pipe)
-{
-	struct drm_device *dev = dsi_config->dev;
-	int lane_count = dsi_config->lane_count;
-	struct mdfld_dsi_dpi_timing dpi_timing;
-	struct drm_display_mode *mode = dsi_config->mode;
-	u32 val;
-
-	/*un-ready device*/
-	REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), 0, 0, 0);
-
-	/*init dsi adapter before kicking off*/
-	REG_WRITE(MIPI_CTRL_REG(pipe), 0x00000018);
-
-	/*enable all interrupts*/
-	REG_WRITE(MIPI_INTR_EN_REG(pipe), 0xffffffff);
-
-	/*set up func_prg*/
-	val = lane_count;
-	val |= dsi_config->channel_num << DSI_DPI_VIRT_CHANNEL_OFFSET;
-
-	switch (dsi_config->bpp) {
-	case 16:
-		val |= DSI_DPI_COLOR_FORMAT_RGB565;
-		break;
-	case 18:
-		val |= DSI_DPI_COLOR_FORMAT_RGB666;
-		break;
-	case 24:
-		val |= DSI_DPI_COLOR_FORMAT_RGB888;
-		break;
-	default:
-		DRM_ERROR("unsupported color format, bpp = %d\n",
-							dsi_config->bpp);
-	}
-	REG_WRITE(MIPI_DSI_FUNC_PRG_REG(pipe), val);
-
-	REG_WRITE(MIPI_HS_TX_TIMEOUT_REG(pipe),
-			(mode->vtotal * mode->htotal * dsi_config->bpp /
-				(8 * lane_count)) & DSI_HS_TX_TIMEOUT_MASK);
-	REG_WRITE(MIPI_LP_RX_TIMEOUT_REG(pipe),
-				0xffff & DSI_LP_RX_TIMEOUT_MASK);
-
-	/*max value: 20 clock cycles of txclkesc*/
-	REG_WRITE(MIPI_TURN_AROUND_TIMEOUT_REG(pipe),
-				0x14 & DSI_TURN_AROUND_TIMEOUT_MASK);
-
-	/*min 21 txclkesc, max: ffffh*/
-	REG_WRITE(MIPI_DEVICE_RESET_TIMER_REG(pipe),
-				0xffff & DSI_RESET_TIMER_MASK);
-
-	REG_WRITE(MIPI_DPI_RESOLUTION_REG(pipe),
-				mode->vdisplay << 16 | mode->hdisplay);
-
-	/*set DPI timing registers*/
-	mdfld_dsi_dpi_timing_calculation(mode, &dpi_timing,
-				dsi_config->lane_count, dsi_config->bpp);
-
-	REG_WRITE(MIPI_HSYNC_COUNT_REG(pipe),
-			dpi_timing.hsync_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_HBP_COUNT_REG(pipe),
-			dpi_timing.hbp_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_HFP_COUNT_REG(pipe),
-			dpi_timing.hfp_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_HACTIVE_COUNT_REG(pipe),
-			dpi_timing.hactive_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_VSYNC_COUNT_REG(pipe),
-			dpi_timing.vsync_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_VBP_COUNT_REG(pipe),
-			dpi_timing.vbp_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_VFP_COUNT_REG(pipe),
-			dpi_timing.vfp_count & DSI_DPI_TIMING_MASK);
-
-	REG_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT_REG(pipe), 0x46);
-
-	/*min: 7d0 max: 4e20*/
-	REG_WRITE(MIPI_INIT_COUNT_REG(pipe), 0x000007d0);
-
-	/*set up video mode*/
-	val = dsi_config->video_mode | DSI_DPI_COMPLETE_LAST_LINE;
-	REG_WRITE(MIPI_VIDEO_MODE_FORMAT_REG(pipe), val);
-
-	REG_WRITE(MIPI_EOT_DISABLE_REG(pipe), 0x00000000);
-
-	REG_WRITE(MIPI_LP_BYTECLK_REG(pipe), 0x00000004);
-
-	/*TODO: figure out how to setup these registers*/
-	if (mdfld_get_panel_type(dev, pipe) == TC35876X)
-		REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x2A0c6008);
-	else
-		REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x150c3408);
-
-	REG_WRITE(MIPI_CLK_LANE_SWITCH_TIME_CNT_REG(pipe), (0xa << 16) | 0x14);
-
-	if (mdfld_get_panel_type(dev, pipe) == TC35876X)
-		tc35876x_set_bridge_reset_state(dev, 0);  /*Pull High Reset */
-
-	/*set device ready*/
-	REG_FLD_MOD(MIPI_DEVICE_READY_REG(pipe), 1, 0, 0);
-}
-
-void mdfld_dsi_dpi_turn_on(struct mdfld_dsi_dpi_output *output, int pipe)
-{
-	struct drm_device *dev = output->dev;
-
-	/* clear special packet sent bit */
-	if (REG_READ(MIPI_INTR_STAT_REG(pipe)) & DSI_INTR_STATE_SPL_PKG_SENT)
-		REG_WRITE(MIPI_INTR_STAT_REG(pipe),
-					DSI_INTR_STATE_SPL_PKG_SENT);
-
-	/*send turn on package*/
-	REG_WRITE(MIPI_DPI_CONTROL_REG(pipe), DSI_DPI_CTRL_HS_TURN_ON);
-
-	/*wait for SPL_PKG_SENT interrupt*/
-	mdfld_wait_for_SPL_PKG_SENT(dev, pipe);
-
-	if (REG_READ(MIPI_INTR_STAT_REG(pipe)) & DSI_INTR_STATE_SPL_PKG_SENT)
-		REG_WRITE(MIPI_INTR_STAT_REG(pipe),
-					DSI_INTR_STATE_SPL_PKG_SENT);
-
-	output->panel_on = 1;
-
-	/* FIXME the following is disabled to WA the X slow start issue
-	   for TMD panel
-	if (pipe == 2)
-		dev_priv->dpi_panel_on2 = true;
-	else if (pipe == 0)
-		dev_priv->dpi_panel_on = true; */
-}
-
-static void mdfld_dsi_dpi_shut_down(struct mdfld_dsi_dpi_output *output,
-								int pipe)
-{
-	struct drm_device *dev = output->dev;
-
-	/*if output is on, or mode setting didn't happen, ignore this*/
-	if ((!output->panel_on) || output->first_boot) {
-		output->first_boot = 0;
-		return;
-	}
-
-	/* Wait for dpi fifo to empty */
-	mdfld_wait_for_DPI_CTRL_FIFO(dev, pipe);
-
-	/* Clear the special packet interrupt bit if set */
-	if (REG_READ(MIPI_INTR_STAT_REG(pipe)) & DSI_INTR_STATE_SPL_PKG_SENT)
-		REG_WRITE(MIPI_INTR_STAT_REG(pipe),
-					DSI_INTR_STATE_SPL_PKG_SENT);
-
-	if (REG_READ(MIPI_DPI_CONTROL_REG(pipe)) == DSI_DPI_CTRL_HS_SHUTDOWN)
-		goto shutdown_out;
-
-	REG_WRITE(MIPI_DPI_CONTROL_REG(pipe), DSI_DPI_CTRL_HS_SHUTDOWN);
-
-shutdown_out:
-	output->panel_on = 0;
-	output->first_boot = 0;
-
-	/* FIXME the following is disabled to WA the X slow start issue
-	   for TMD panel
-	if (pipe == 2)
-		dev_priv->dpi_panel_on2 = false;
-	else if (pipe == 0)
-		dev_priv->dpi_panel_on = false;	 */
-}
-
-static void mdfld_dsi_dpi_set_power(struct drm_encoder *encoder, bool on)
-{
-	struct mdfld_dsi_encoder *dsi_encoder = mdfld_dsi_encoder(encoder);
-	struct mdfld_dsi_dpi_output *dpi_output =
-				MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
-	struct mdfld_dsi_config *dsi_config =
-				mdfld_dsi_encoder_get_config(dsi_encoder);
-	int pipe = mdfld_dsi_encoder_get_pipe(dsi_encoder);
-	struct drm_device *dev = dsi_config->dev;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-
-	/*start up display island if it was shutdown*/
-	if (!gma_power_begin(dev, true))
-		return;
-
-	if (on) {
-		if (mdfld_get_panel_type(dev, pipe) == TMD_VID)
-			mdfld_dsi_dpi_turn_on(dpi_output, pipe);
-		else if (mdfld_get_panel_type(dev, pipe) == TC35876X)
-			mdfld_dsi_configure_up(dsi_encoder, pipe);
-		else {
-			/*enable mipi port*/
-			REG_WRITE(MIPI_PORT_CONTROL(pipe),
-				REG_READ(MIPI_PORT_CONTROL(pipe)) | BIT(31));
-			REG_READ(MIPI_PORT_CONTROL(pipe));
-
-			mdfld_dsi_dpi_turn_on(dpi_output, pipe);
-			mdfld_dsi_tpo_ic_init(dsi_config, pipe);
-		}
-		dev_priv->dpi_panel_on[pipe] = true;
-	} else {
-		if (mdfld_get_panel_type(dev, pipe) == TMD_VID)
-			mdfld_dsi_dpi_shut_down(dpi_output, pipe);
-		else if (mdfld_get_panel_type(dev, pipe) == TC35876X)
-			mdfld_dsi_configure_down(dsi_encoder, pipe);
-		else {
-			mdfld_dsi_dpi_shut_down(dpi_output, pipe);
-
-			/*disable mipi port*/
-			REG_WRITE(MIPI_PORT_CONTROL(pipe),
-				REG_READ(MIPI_PORT_CONTROL(pipe)) & ~BIT(31));
-			REG_READ(MIPI_PORT_CONTROL(pipe));
-		}
-		dev_priv->dpi_panel_on[pipe] = false;
-	}
-	gma_power_end(dev);
-}
-
-void mdfld_dsi_dpi_dpms(struct drm_encoder *encoder, int mode)
-{
-	mdfld_dsi_dpi_set_power(encoder, mode == DRM_MODE_DPMS_ON);
-}
-
-bool mdfld_dsi_dpi_mode_fixup(struct drm_encoder *encoder,
-				     const struct drm_display_mode *mode,
-				     struct drm_display_mode *adjusted_mode)
-{
-	struct mdfld_dsi_encoder *dsi_encoder = mdfld_dsi_encoder(encoder);
-	struct mdfld_dsi_config *dsi_config =
-				mdfld_dsi_encoder_get_config(dsi_encoder);
-	struct drm_display_mode *fixed_mode = dsi_config->fixed_mode;
-
-	if (fixed_mode) {
-		adjusted_mode->hdisplay = fixed_mode->hdisplay;
-		adjusted_mode->hsync_start = fixed_mode->hsync_start;
-		adjusted_mode->hsync_end = fixed_mode->hsync_end;
-		adjusted_mode->htotal = fixed_mode->htotal;
-		adjusted_mode->vdisplay = fixed_mode->vdisplay;
-		adjusted_mode->vsync_start = fixed_mode->vsync_start;
-		adjusted_mode->vsync_end = fixed_mode->vsync_end;
-		adjusted_mode->vtotal = fixed_mode->vtotal;
-		adjusted_mode->clock = fixed_mode->clock;
-		drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
-	}
-	return true;
-}
-
-void mdfld_dsi_dpi_prepare(struct drm_encoder *encoder)
-{
-	mdfld_dsi_dpi_set_power(encoder, false);
-}
-
-void mdfld_dsi_dpi_commit(struct drm_encoder *encoder)
-{
-	mdfld_dsi_dpi_set_power(encoder, true);
-}
-
-/* For TC35876X */
-/* This functionality was implemented in FW in iCDK */
-/* But removed in DV0 and later. So need to add here. */
-static void mipi_set_properties(struct mdfld_dsi_config *dsi_config, int pipe)
-{
-	struct drm_device *dev = dsi_config->dev;
-
-	REG_WRITE(MIPI_CTRL_REG(pipe), 0x00000018);
-	REG_WRITE(MIPI_INTR_EN_REG(pipe), 0xffffffff);
-	REG_WRITE(MIPI_HS_TX_TIMEOUT_REG(pipe), 0xffffff);
-	REG_WRITE(MIPI_LP_RX_TIMEOUT_REG(pipe), 0xffffff);
-	REG_WRITE(MIPI_TURN_AROUND_TIMEOUT_REG(pipe), 0x14);
-	REG_WRITE(MIPI_DEVICE_RESET_TIMER_REG(pipe), 0xff);
-	REG_WRITE(MIPI_HIGH_LOW_SWITCH_COUNT_REG(pipe), 0x25);
-	REG_WRITE(MIPI_INIT_COUNT_REG(pipe), 0xf0);
-	REG_WRITE(MIPI_EOT_DISABLE_REG(pipe), 0x00000000);
-	REG_WRITE(MIPI_LP_BYTECLK_REG(pipe), 0x00000004);
-	REG_WRITE(MIPI_DBI_BW_CTRL_REG(pipe), 0x00000820);
-	REG_WRITE(MIPI_CLK_LANE_SWITCH_TIME_CNT_REG(pipe), (0xa << 16) | 0x14);
-}
-
-static void mdfld_mipi_set_video_timing(struct mdfld_dsi_config *dsi_config,
-					int pipe)
-{
-	struct drm_device *dev = dsi_config->dev;
-	struct mdfld_dsi_dpi_timing dpi_timing;
-	struct drm_display_mode *mode = dsi_config->mode;
-
-	mdfld_dsi_dpi_timing_calculation(mode, &dpi_timing,
-					dsi_config->lane_count,
-					dsi_config->bpp);
-
-	REG_WRITE(MIPI_DPI_RESOLUTION_REG(pipe),
-		mode->vdisplay << 16 | mode->hdisplay);
-	REG_WRITE(MIPI_HSYNC_COUNT_REG(pipe),
-		dpi_timing.hsync_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_HBP_COUNT_REG(pipe),
-		dpi_timing.hbp_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_HFP_COUNT_REG(pipe),
-		dpi_timing.hfp_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_HACTIVE_COUNT_REG(pipe),
-		dpi_timing.hactive_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_VSYNC_COUNT_REG(pipe),
-		dpi_timing.vsync_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_VBP_COUNT_REG(pipe),
-		dpi_timing.vbp_count & DSI_DPI_TIMING_MASK);
-	REG_WRITE(MIPI_VFP_COUNT_REG(pipe),
-		dpi_timing.vfp_count & DSI_DPI_TIMING_MASK);
-}
-
-static void mdfld_mipi_config(struct mdfld_dsi_config *dsi_config, int pipe)
-{
-	struct drm_device *dev = dsi_config->dev;
-	int lane_count = dsi_config->lane_count;
-
-	if (pipe) {
-		REG_WRITE(MIPI_PORT_CONTROL(0), 0x00000002);
-		REG_WRITE(MIPI_PORT_CONTROL(2), 0x80000000);
-	} else {
-		REG_WRITE(MIPI_PORT_CONTROL(0), 0x80010000);
-		REG_WRITE(MIPI_PORT_CONTROL(2), 0x00);
-	}
-
-	REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x150A600F);
-	REG_WRITE(MIPI_VIDEO_MODE_FORMAT_REG(pipe), 0x0000000F);
-
-	/* lane_count = 3 */
-	REG_WRITE(MIPI_DSI_FUNC_PRG_REG(pipe), 0x00000200 | lane_count);
-
-	mdfld_mipi_set_video_timing(dsi_config, pipe);
-}
-
-static void mdfld_set_pipe_timing(struct mdfld_dsi_config *dsi_config, int pipe)
-{
-	struct drm_device *dev = dsi_config->dev;
-	struct drm_display_mode *mode = dsi_config->mode;
-
-	REG_WRITE(HTOTAL_A, ((mode->htotal - 1) << 16) | (mode->hdisplay - 1));
-	REG_WRITE(HBLANK_A, ((mode->htotal - 1) << 16) | (mode->hdisplay - 1));
-	REG_WRITE(HSYNC_A,
-		((mode->hsync_end - 1) << 16) | (mode->hsync_start - 1));
-
-	REG_WRITE(VTOTAL_A, ((mode->vtotal - 1) << 16) | (mode->vdisplay - 1));
-	REG_WRITE(VBLANK_A, ((mode->vtotal - 1) << 16) | (mode->vdisplay - 1));
-	REG_WRITE(VSYNC_A,
-		((mode->vsync_end - 1) << 16) | (mode->vsync_start - 1));
-
-	REG_WRITE(PIPEASRC,
-		((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
-}
-/* End for TC35876X */
-
-void mdfld_dsi_dpi_mode_set(struct drm_encoder *encoder,
-				   struct drm_display_mode *mode,
-				   struct drm_display_mode *adjusted_mode)
-{
-	struct mdfld_dsi_encoder *dsi_encoder = mdfld_dsi_encoder(encoder);
-	struct mdfld_dsi_dpi_output *dpi_output =
-					MDFLD_DSI_DPI_OUTPUT(dsi_encoder);
-	struct mdfld_dsi_config *dsi_config =
-				mdfld_dsi_encoder_get_config(dsi_encoder);
-	struct drm_device *dev = dsi_config->dev;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	int pipe = mdfld_dsi_encoder_get_pipe(dsi_encoder);
-	u32 pipeconf_reg = PIPEACONF;
-	u32 dspcntr_reg = DSPACNTR;
-	u32 pipeconf, dspcntr;
-
-	u32 mipi = MIPI_PORT_EN | PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
-
-	if (WARN_ON(pipe < 0))
-		return;
-
-	pipeconf = dev_priv->pipeconf[pipe];
-	dspcntr = dev_priv->dspcntr[pipe];
-
-	if (pipe) {
-		pipeconf_reg = PIPECCONF;
-		dspcntr_reg = DSPCCNTR;
-	} else {
-		if (mdfld_get_panel_type(dev, pipe) == TC35876X)
-			mipi &= (~0x03); /* Use all four lanes */
-		else
-			mipi |= 2;
-	}
-
-	/*start up display island if it was shutdown*/
-	if (!gma_power_begin(dev, true))
-		return;
-
-	if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
-		/*
-		 * The following logic is required to reset the bridge and
-		 * configure. This also starts the DSI clock at 200MHz.
-		 */
-		tc35876x_set_bridge_reset_state(dev, 0);  /*Pull High Reset */
-		tc35876x_toshiba_bridge_panel_on(dev);
-		udelay(100);
-		/* Now start the DSI clock */
-		REG_WRITE(MRST_DPLL_A, 0x00);
-		REG_WRITE(MRST_FPA0, 0xC1);
-		REG_WRITE(MRST_DPLL_A, 0x00800000);
-		udelay(500);
-		REG_WRITE(MRST_DPLL_A, 0x80800000);
-
-		if (REG_BIT_WAIT(pipeconf_reg, 1, 29))
-			dev_err(dev->dev, "%s: DSI PLL lock timeout\n",
-				__func__);
-
-		REG_WRITE(MIPI_DPHY_PARAM_REG(pipe), 0x2A0c6008);
-
-		mipi_set_properties(dsi_config, pipe);
-		mdfld_mipi_config(dsi_config, pipe);
-		mdfld_set_pipe_timing(dsi_config, pipe);
-
-		REG_WRITE(DSPABASE, 0x00);
-		REG_WRITE(DSPASIZE,
-			((mode->vdisplay - 1) << 16) | (mode->hdisplay - 1));
-
-		REG_WRITE(DSPACNTR, 0x98000000);
-		REG_WRITE(DSPASURF, 0x00);
-
-		REG_WRITE(VGACNTRL, 0x80000000);
-		REG_WRITE(DEVICE_READY_REG, 0x00000001);
-
-		REG_WRITE(MIPI_PORT_CONTROL(pipe), 0x80810000);
-	} else {
-		/*set up mipi port FIXME: do at init time */
-		REG_WRITE(MIPI_PORT_CONTROL(pipe), mipi);
-	}
-	REG_READ(MIPI_PORT_CONTROL(pipe));
-
-	if (mdfld_get_panel_type(dev, pipe) == TMD_VID) {
-		/* NOP */
-	} else if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
-		/* set up DSI controller DPI interface */
-		mdfld_dsi_dpi_controller_init(dsi_config, pipe);
-
-		/* Configure MIPI Bridge and Panel */
-		tc35876x_configure_lvds_bridge(dev);
-		dev_priv->dpi_panel_on[pipe] = true;
-	} else {
-		/*turn on DPI interface*/
-		mdfld_dsi_dpi_turn_on(dpi_output, pipe);
-	}
-
-	/*set up pipe*/
-	REG_WRITE(pipeconf_reg, pipeconf);
-	REG_READ(pipeconf_reg);
-
-	/*set up display plane*/
-	REG_WRITE(dspcntr_reg, dspcntr);
-	REG_READ(dspcntr_reg);
-
-	msleep(20); /* FIXME: this should wait for vblank */
-
-	if (mdfld_get_panel_type(dev, pipe) == TMD_VID) {
-		/* NOP */
-	} else if (mdfld_get_panel_type(dev, pipe) == TC35876X) {
-		mdfld_dsi_dpi_turn_on(dpi_output, pipe);
-	} else {
-		/* init driver ic */
-		mdfld_dsi_tpo_ic_init(dsi_config, pipe);
-		/*init backlight*/
-		mdfld_dsi_brightness_init(dsi_config, pipe);
-	}
-
-	gma_power_end(dev);
-}
-
-/*
- * Init DSI DPI encoder.
- * Allocate an mdfld_dsi_encoder and attach it to given @dsi_connector
- * return pointer of newly allocated DPI encoder, NULL on error
- */
-struct mdfld_dsi_encoder *mdfld_dsi_dpi_init(struct drm_device *dev,
-				struct mdfld_dsi_connector *dsi_connector,
-				const struct panel_funcs *p_funcs)
-{
-	struct mdfld_dsi_dpi_output *dpi_output = NULL;
-	struct mdfld_dsi_config *dsi_config;
-	struct drm_connector *connector = NULL;
-	struct drm_encoder *encoder = NULL;
-	int pipe;
-	u32 data;
-	int ret;
-
-	pipe = dsi_connector->pipe;
-
-	if (mdfld_get_panel_type(dev, pipe) != TC35876X) {
-		dsi_config = mdfld_dsi_get_config(dsi_connector);
-
-		/* panel hard-reset */
-		if (p_funcs->reset) {
-			ret = p_funcs->reset(dev, pipe);
-			if (ret) {
-				DRM_ERROR("Panel %d hard-reset failed\n", pipe);
-				return NULL;
-			}
-		}
-
-		/* panel drvIC init */
-		if (p_funcs->drv_ic_init)
-			p_funcs->drv_ic_init(dsi_config, pipe);
-
-		/* panel power mode detect */
-		ret = mdfld_dsi_get_power_mode(dsi_config, &data, false);
-		if (ret) {
-			DRM_ERROR("Panel %d get power mode failed\n", pipe);
-			dsi_connector->status = connector_status_disconnected;
-		} else {
-			DRM_INFO("pipe %d power mode 0x%x\n", pipe, data);
-			dsi_connector->status = connector_status_connected;
-		}
-	}
-
-	dpi_output = kzalloc(sizeof(struct mdfld_dsi_dpi_output), GFP_KERNEL);
-	if (!dpi_output) {
-		DRM_ERROR("No memory\n");
-		return NULL;
-	}
-
-	dpi_output->panel_on = 0;
-	dpi_output->dev = dev;
-	if (mdfld_get_panel_type(dev, pipe) != TC35876X)
-		dpi_output->p_funcs = p_funcs;
-	dpi_output->first_boot = 1;
-
-	/*get fixed mode*/
-	dsi_config = mdfld_dsi_get_config(dsi_connector);
-
-	/*create drm encoder object*/
-	connector = &dsi_connector->base.base;
-	encoder = &dpi_output->base.base.base;
-	drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_LVDS);
-	drm_encoder_helper_add(encoder,
-				p_funcs->encoder_helper_funcs);
-
-	/*attach to given connector*/
-	drm_connector_attach_encoder(connector, encoder);
-
-	/*set possible crtcs and clones*/
-	if (dsi_connector->pipe) {
-		encoder->possible_crtcs = (1 << 2);
-		encoder->possible_clones = 0;
-	} else {
-		encoder->possible_crtcs = (1 << 0);
-		encoder->possible_clones = 0;
-	}
-
-	dsi_connector->base.encoder = &dpi_output->base.base;
-
-	return &dpi_output->base;
-}

drivers/gpu/drm/gma500/mdfld_dsi_dpi.h

···
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * jim liu <[e-mail]>
- * Jackie Li<[e-mail]>
- */
-
-#ifndef __MDFLD_DSI_DPI_H__
-#define __MDFLD_DSI_DPI_H__
-
-#include "mdfld_dsi_output.h"
-#include "mdfld_output.h"
-
-struct mdfld_dsi_dpi_timing {
-	u16 hsync_count;
-	u16 hbp_count;
-	u16 hfp_count;
-	u16 hactive_count;
-	u16 vsync_count;
-	u16 vbp_count;
-	u16 vfp_count;
-};
-
-struct mdfld_dsi_dpi_output {
-	struct mdfld_dsi_encoder base;
-	struct drm_device *dev;
-
-	int panel_on;
-	int first_boot;
-
-	const struct panel_funcs *p_funcs;
-};
-
-#define MDFLD_DSI_DPI_OUTPUT(dsi_encoder)\
-	container_of(dsi_encoder, struct mdfld_dsi_dpi_output, base)
-
-/* Export functions */
-extern int mdfld_dsi_dpi_timing_calculation(struct drm_display_mode *mode,
-				struct mdfld_dsi_dpi_timing *dpi_timing,
-				int num_lane, int bpp);
-extern struct mdfld_dsi_encoder *mdfld_dsi_dpi_init(struct drm_device *dev,
-				struct mdfld_dsi_connector *dsi_connector,
-				const struct panel_funcs *p_funcs);
-
-/* MDFLD DPI helper functions */
-extern void mdfld_dsi_dpi_dpms(struct drm_encoder *encoder, int mode);
-extern bool mdfld_dsi_dpi_mode_fixup(struct drm_encoder *encoder,
-				const struct drm_display_mode *mode,
-				struct drm_display_mode *adjusted_mode);
-extern void mdfld_dsi_dpi_prepare(struct drm_encoder *encoder);
-extern void mdfld_dsi_dpi_commit(struct drm_encoder *encoder);
-extern void mdfld_dsi_dpi_mode_set(struct drm_encoder *encoder,
-				struct drm_display_mode *mode,
-				struct drm_display_mode *adjusted_mode);
-extern void mdfld_dsi_dpi_turn_on(struct mdfld_dsi_dpi_output *output,
-				int pipe);
-extern void mdfld_dsi_dpi_controller_init(struct mdfld_dsi_config *dsi_config,
-				int pipe);
-#endif /*__MDFLD_DSI_DPI_H__*/

drivers/gpu/drm/gma500/mdfld_dsi_output.c

···
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * jim liu <[e-mail]>
- * Jackie Li<[e-mail]>
- */
-
-#include <linux/delay.h>
-#include <linux/moduleparam.h>
-#include <linux/pm_runtime.h>
-#include <linux/gpio/consumer.h>
-
-#include <asm/intel_scu_ipc.h>
-
-#include "mdfld_dsi_dpi.h"
-#include "mdfld_dsi_output.h"
-#include "mdfld_dsi_pkg_sender.h"
-#include "mdfld_output.h"
-#include "tc35876x-dsi-lvds.h"
-
-/* get the LABC from command line. */
-static int LABC_control = 1;
-
-#ifdef MODULE
-module_param(LABC_control, int, 0644);
-#else
-
-static int __init parse_LABC_control(char *arg)
-{
-	/* LABC control can be passed in as a cmdline parameter */
-	/* to enable this feature add LABC=1 to cmdline */
-	/* to disable this feature add LABC=0 to cmdline */
-	if (!arg)
-		return -EINVAL;
-
-	if (!strcasecmp(arg, "0"))
-		LABC_control = 0;
-	else if (!strcasecmp(arg, "1"))
-		LABC_control = 1;
-
-	return 0;
-}
-early_param("LABC", parse_LABC_control);
-#endif
-
-/*
- * Check and see if the generic control or data buffer is empty and ready.
- */
-void mdfld_dsi_gen_fifo_ready(struct drm_device *dev, u32 gen_fifo_stat_reg,
-							u32 fifo_stat)
-{
-	u32 GEN_BF_time_out_count;
-
-	/* Check MIPI Adatper command registers */
-	for (GEN_BF_time_out_count = 0;
-			GEN_BF_time_out_count < GEN_FB_TIME_OUT;
-			GEN_BF_time_out_count++) {
-		if ((REG_READ(gen_fifo_stat_reg) & fifo_stat) == fifo_stat)
-			break;
-		udelay(100);
-	}
-
-	if (GEN_BF_time_out_count == GEN_FB_TIME_OUT)
-		DRM_ERROR("mdfld_dsi_gen_fifo_ready, Timeout. gen_fifo_stat_reg = 0x%x.\n",
-					gen_fifo_stat_reg);
-}
-
-/*
- * Manage the DSI MIPI keyboard and display brightness.
- * FIXME: this is exported to OSPM code. should work out an specific
- * display interface to OSPM.
- */
-
-void mdfld_dsi_brightness_init(struct mdfld_dsi_config *dsi_config, int pipe)
-{
-	struct mdfld_dsi_pkg_sender *sender =
-				mdfld_dsi_get_pkg_sender(dsi_config);
-	struct drm_device *dev;
-	struct drm_psb_private *dev_priv;
-	u32 gen_ctrl_val;
-
-	if (!sender) {
-		DRM_ERROR("No sender found\n");
-		return;
-	}
-
-	dev = sender->dev;
-	dev_priv = dev->dev_private;
-
-	/* Set default display backlight value to 85% (0xd8)*/
-	mdfld_dsi_send_mcs_short(sender, write_display_brightness, 0xd8, 1,
-				true);
-
-	/* Set minimum brightness setting of CABC function to 20% (0x33)*/
-	mdfld_dsi_send_mcs_short(sender, write_cabc_min_bright, 0x33, 1, true);
-
-	/* Enable backlight or/and LABC */
-	gen_ctrl_val = BRIGHT_CNTL_BLOCK_ON | DISPLAY_DIMMING_ON |
-								BACKLIGHT_ON;
-	if (LABC_control == 1)
-		gen_ctrl_val |= DISPLAY_DIMMING_ON | DISPLAY_BRIGHTNESS_AUTO
-								| GAMMA_AUTO;
-
-	if (LABC_control == 1)
-		gen_ctrl_val |= AMBIENT_LIGHT_SENSE_ON;
-
-	dev_priv->mipi_ctrl_display = gen_ctrl_val;
-
-	mdfld_dsi_send_mcs_short(sender, write_ctrl_display, (u8)gen_ctrl_val,
-				1, true);
-
-	mdfld_dsi_send_mcs_short(sender, write_ctrl_cabc, UI_IMAGE, 1, true);
-}
-
-void mdfld_dsi_brightness_control(struct drm_device *dev, int pipe, int level)
-{
-	struct mdfld_dsi_pkg_sender *sender;
-	struct drm_psb_private *dev_priv;
-	struct mdfld_dsi_config *dsi_config;
-	u32 gen_ctrl_val = 0;
-	int p_type = TMD_VID;
-
-	if (!dev || (pipe != 0 && pipe != 2)) {
-		DRM_ERROR("Invalid parameter\n");
-		return;
-	}
-
-	p_type = mdfld_get_panel_type(dev, 0);
-
-	dev_priv = dev->dev_private;
-
-	if (pipe)
-		dsi_config = dev_priv->dsi_configs[1];
-	else
-		dsi_config = dev_priv->dsi_configs[0];
-
-	sender = mdfld_dsi_get_pkg_sender(dsi_config);
-
-	if (!sender) {
-		DRM_ERROR("No sender found\n");
-		return;
-	}
-
-	gen_ctrl_val = (level * 0xff / MDFLD_DSI_BRIGHTNESS_MAX_LEVEL) & 0xff;
-
-	dev_dbg(sender->dev->dev, "pipe = %d, gen_ctrl_val = %d.\n",
-							pipe, gen_ctrl_val);
-
-	if (p_type == TMD_VID) {
-		/* Set display backlight value */
-		mdfld_dsi_send_mcs_short(sender, tmd_write_display_brightness,
-					(u8)gen_ctrl_val, 1, true);
-	} else {
-		/* Set display backlight value */
-		mdfld_dsi_send_mcs_short(sender, write_display_brightness,
-					(u8)gen_ctrl_val, 1, true);
-
-		/* Enable backlight control */
-		if (level == 0)
-			gen_ctrl_val = 0;
-		else
-			gen_ctrl_val = dev_priv->mipi_ctrl_display;
-
-		mdfld_dsi_send_mcs_short(sender, write_ctrl_display,
-					(u8)gen_ctrl_val, 1, true);
-	}
-}
-
-static int mdfld_dsi_get_panel_status(struct mdfld_dsi_config *dsi_config,
-				u8 dcs, u32 *data, bool hs)
-{
-	struct mdfld_dsi_pkg_sender *sender
-		= mdfld_dsi_get_pkg_sender(dsi_config);
-
-	if (!sender || !data) {
-		DRM_ERROR("Invalid parameter\n");
-		return -EINVAL;
-	}
-
-	return mdfld_dsi_read_mcs(sender, dcs, data, 1, hs);
-}
-
-int mdfld_dsi_get_power_mode(struct mdfld_dsi_config *dsi_config, u32 *mode,
-			bool hs)
-{
-	if (!dsi_config || !mode) {
-		DRM_ERROR("Invalid parameter\n");
-		return -EINVAL;
-	}
-
-	return mdfld_dsi_get_panel_status(dsi_config, 0x0a, mode, hs);
-}
-
-/*
- * NOTE: this function was used by OSPM.
- * TODO: will be removed later, should work out display interfaces for OSPM
- */
-void mdfld_dsi_controller_init(struct mdfld_dsi_config *dsi_config, int pipe)
-{
-	if (!dsi_config || ((pipe != 0) && (pipe != 2))) {
-		DRM_ERROR("Invalid parameters\n");
-		return;
-	}
-
-	mdfld_dsi_dpi_controller_init(dsi_config, pipe);
-}
-
-static void mdfld_dsi_connector_save(struct drm_connector *connector)
-{
-}
-
-static void mdfld_dsi_connector_restore(struct drm_connector *connector)
-{
-}
-
-/* FIXME: start using the force parameter */
-static enum drm_connector_status
-mdfld_dsi_connector_detect(struct drm_connector *connector, bool force)
-{
-	struct mdfld_dsi_connector *dsi_connector
-		= mdfld_dsi_connector(connector);
-
-	dsi_connector->status = connector_status_connected;
-
-	return dsi_connector->status;
-}
-
-static int mdfld_dsi_connector_set_property(struct drm_connector *connector,
-				struct drm_property *property,
-				uint64_t value)
-{
-	struct drm_encoder *encoder = connector->encoder;
-
-	if (!strcmp(property->name, "scaling mode") && encoder) {
-		struct gma_crtc *gma_crtc = to_gma_crtc(encoder->crtc);
-		bool centerechange;
-		uint64_t val;
-
-		if (!gma_crtc)
-			goto set_prop_error;
-
-		switch (value) {
-		case DRM_MODE_SCALE_FULLSCREEN:
-			break;
-		case DRM_MODE_SCALE_NO_SCALE:
-			break;
-		case DRM_MODE_SCALE_ASPECT:
-			break;
-		default:
-			goto set_prop_error;
-		}
-
-		if (drm_object_property_get_value(&connector->base, property, &val))
-			goto set_prop_error;
-
-		if (val == value)
-			goto set_prop_done;
-
-		if (drm_object_property_set_value(&connector->base,
-							property, value))
-			goto set_prop_error;
-
-		centerechange = (val == DRM_MODE_SCALE_NO_SCALE) ||
-			(value == DRM_MODE_SCALE_NO_SCALE);
-
-		if (gma_crtc->saved_mode.hdisplay != 0 &&
-		    gma_crtc->saved_mode.vdisplay != 0) {
-			if (centerechange) {
-				if (!drm_crtc_helper_set_mode(encoder->crtc,
-						&gma_crtc->saved_mode,
-						encoder->crtc->x,
-						encoder->crtc->y,
-						encoder->crtc->primary->fb))
-					goto set_prop_error;
-			} else {
-				const struct drm_encoder_helper_funcs *funcs =
-						encoder->helper_private;
-				funcs->mode_set(encoder,
-					&gma_crtc->saved_mode,
-					&gma_crtc->saved_adjusted_mode);
-			}
-		}
-	} else if (!strcmp(property->name, "backlight") && encoder) {
-		if (drm_object_property_set_value(&connector->base, property,
-									value))
-			goto set_prop_error;
-		else
-			gma_backlight_set(encoder->dev, value);
-	}
-set_prop_done:
-	return 0;
-set_prop_error:
-	return -1;
-}
-
-static void mdfld_dsi_connector_destroy(struct drm_connector *connector)
-{
-	struct mdfld_dsi_connector *dsi_connector =
-					mdfld_dsi_connector(connector);
-	struct mdfld_dsi_pkg_sender *sender;
-
-	if (!dsi_connector)
-		return;
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-	sender = dsi_connector->pkg_sender;
-	mdfld_dsi_pkg_sender_destroy(sender);
-	kfree(dsi_connector);
-}
-
-static int mdfld_dsi_connector_get_modes(struct drm_connector *connector)
-{
-	struct mdfld_dsi_connector *dsi_connector =
-				mdfld_dsi_connector(connector);
-	struct mdfld_dsi_config *dsi_config =
-				mdfld_dsi_get_config(dsi_connector);
-	struct drm_display_mode *fixed_mode = dsi_config->fixed_mode;
-	struct drm_display_mode *dup_mode = NULL;
-	struct drm_device *dev = connector->dev;
-
-	if (fixed_mode) {
-		dev_dbg(dev->dev, "fixed_mode %dx%d\n",
-				fixed_mode->hdisplay, fixed_mode->vdisplay);
-		dup_mode = drm_mode_duplicate(dev, fixed_mode);
-		drm_mode_probed_add(connector, dup_mode);
-		return 1;
-	}
-	DRM_ERROR("Didn't get any modes!\n");
-	return 0;
-}
-
-static enum drm_mode_status mdfld_dsi_connector_mode_valid(struct drm_connector *connector,
-						struct drm_display_mode *mode)
-{
-	struct mdfld_dsi_connector *dsi_connector =
-					mdfld_dsi_connector(connector);
-	struct mdfld_dsi_config *dsi_config =
-					mdfld_dsi_get_config(dsi_connector);
-	struct drm_display_mode *fixed_mode = dsi_config->fixed_mode;
-
-	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
-		return MODE_NO_DBLESCAN;
-
-	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
-		return MODE_NO_INTERLACE;
-
-	/**
-	 * FIXME: current DC has no fitting unit, reject any mode setting
-	 * request
-	 * Will figure out a way to do up-scaling(panel fitting) later.
-	 **/
-	if (fixed_mode) {
-		if (mode->hdisplay != fixed_mode->hdisplay)
-			return MODE_PANEL;
-
-		if (mode->vdisplay != fixed_mode->vdisplay)
-			return MODE_PANEL;
-	}
-
-	return MODE_OK;
-}
-
-static struct drm_encoder *mdfld_dsi_connector_best_encoder(
-				struct drm_connector *connector)
-{
-	struct mdfld_dsi_connector *dsi_connector =
-				mdfld_dsi_connector(connector);
-	struct mdfld_dsi_config *dsi_config =
-				mdfld_dsi_get_config(dsi_connector);
-	return &dsi_config->encoder->base.base;
-}
-
-/*DSI connector funcs*/
-static const struct drm_connector_funcs mdfld_dsi_connector_funcs = {
-	.dpms = drm_helper_connector_dpms,
-	.detect = mdfld_dsi_connector_detect,
-	.fill_modes = drm_helper_probe_single_connector_modes,
-	.set_property = mdfld_dsi_connector_set_property,
-	.destroy = mdfld_dsi_connector_destroy,
-};
-
-/*DSI connector helper funcs*/
-static const struct drm_connector_helper_funcs
-	mdfld_dsi_connector_helper_funcs = {
-	.get_modes = mdfld_dsi_connector_get_modes,
-	.mode_valid = mdfld_dsi_connector_mode_valid,
-	.best_encoder = mdfld_dsi_connector_best_encoder,
-};
-
-static int mdfld_dsi_get_default_config(struct drm_device *dev,
-				struct mdfld_dsi_config *config, int pipe)
-{
-	if (!dev || !config) {
-		DRM_ERROR("Invalid parameters");
-		return -EINVAL;
-	}
-
-	config->bpp = 24;
-	if (mdfld_get_panel_type(dev, pipe) == TC35876X)
-		config->lane_count = 4;
-	else
-		config->lane_count = 2;
-	config->channel_num = 0;
-
-	if (mdfld_get_panel_type(dev, pipe) == TMD_VID)
-		config->video_mode = MDFLD_DSI_VIDEO_NON_BURST_MODE_SYNC_PULSE;
-	else if (mdfld_get_panel_type(dev, pipe) == TC35876X)
-		config->video_mode =
-				MDFLD_DSI_VIDEO_NON_BURST_MODE_SYNC_EVENTS;
-	else
-		config->video_mode = MDFLD_DSI_VIDEO_BURST_MODE;
-
-	return 0;
-}
-
-int mdfld_dsi_panel_reset(struct drm_device *ddev, int pipe)
-{
-	struct device *dev = ddev->dev;
-	struct gpio_desc *gpiod;
-
-	/*
-	 * Raise the GPIO reset line for the corresponding pipe to HIGH,
-	 * this is probably because it is active low so this takes the
-	 * respective pipe out of reset. (We have no code to put it back
-	 * into reset in this driver.)
-	 */
-	switch (pipe) {
-	case 0:
-		gpiod = gpiod_get(dev, "dsi-pipe0-reset", GPIOD_OUT_HIGH);
-		if (IS_ERR(gpiod))
-			return PTR_ERR(gpiod);
-		break;
-	case 2:
-		gpiod = gpiod_get(dev, "dsi-pipe2-reset", GPIOD_OUT_HIGH);
-		if (IS_ERR(gpiod))
-			return PTR_ERR(gpiod);
-		break;
-	default:
-		DRM_DEV_ERROR(dev, "Invalid output pipe\n");
-		return -EINVAL;
-	}
-	gpiod_put(gpiod);
-
-	/* Flush posted writes on the device */
-	gpiod = gpiod_get(dev, "dsi-pipe0-reset", GPIOD_ASIS);
-	if (IS_ERR(gpiod))
-		return PTR_ERR(gpiod);
-	gpiod_get_value(gpiod);
-	gpiod_put(gpiod);
-
-	return 0;
-}
-
-/*
- * MIPI output init
- * @dev drm device
- * @pipe pipe number. 0 or 2
- * @config
- *
- * Do the initialization of a MIPI output, including create DRM mode objects
- * initialization of DSI output on @pipe
- */
-void mdfld_dsi_output_init(struct drm_device *dev,
-			   int pipe,
-			   const struct panel_funcs *p_vid_funcs)
-{
-	struct mdfld_dsi_config *dsi_config;
-	struct mdfld_dsi_connector *dsi_connector;
-	struct drm_connector *connector;
-	struct mdfld_dsi_encoder *encoder;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct panel_info dsi_panel_info;
-	u32 width_mm, height_mm;
-
-	dev_dbg(dev->dev, "init DSI output on pipe %d\n", pipe);
-
-	if (pipe != 0 && pipe != 2) {
-		DRM_ERROR("Invalid parameter\n");
-		return;
-	}
-
-	/*create a new connector*/
-	dsi_connector = kzalloc(sizeof(struct mdfld_dsi_connector), GFP_KERNEL);
-	if (!dsi_connector) {
-		DRM_ERROR("No memory");
-		return;
-	}
-
-	dsi_connector->pipe =  pipe;
-
-	dsi_config = kzalloc(sizeof(struct mdfld_dsi_config),
-			GFP_KERNEL);
-	if (!dsi_config) {
-		DRM_ERROR("cannot allocate memory for DSI config\n");
-		goto dsi_init_err0;
-	}
-	mdfld_dsi_get_default_config(dev, dsi_config, pipe);
-
-	dsi_connector->private = dsi_config;
-
-	dsi_config->changed = 1;
-	dsi_config->dev = dev;
-
-	dsi_config->fixed_mode = p_vid_funcs->get_config_mode(dev);
-	if (p_vid_funcs->get_panel_info(dev, pipe, &dsi_panel_info))
-			goto dsi_init_err0;
-
-	width_mm = dsi_panel_info.width_mm;
-	height_mm = dsi_panel_info.height_mm;
-
-	dsi_config->mode = dsi_config->fixed_mode;
-	dsi_config->connector = dsi_connector;
-
-	if (!dsi_config->fixed_mode) {
-		DRM_ERROR("No panel fixed mode was found\n");
-		goto dsi_init_err0;
-	}
-
-	if (pipe && dev_priv->dsi_configs[0]) {
-		dsi_config->dvr_ic_inited = 0;
-		dev_priv->dsi_configs[1] = dsi_config;
-	} else if (pipe == 0) {
-		dsi_config->dvr_ic_inited = 1;
-		dev_priv->dsi_configs[0] = dsi_config;
-	} else {
-		DRM_ERROR("Trying to init MIPI1 before MIPI0\n");
-		goto dsi_init_err0;
-	}
-
-
-	connector = &dsi_connector->base.base;
-	dsi_connector->base.save = mdfld_dsi_connector_save;
-	dsi_connector->base.restore = mdfld_dsi_connector_restore;
-
-	drm_connector_init(dev, connector, &mdfld_dsi_connector_funcs,
-						DRM_MODE_CONNECTOR_LVDS);
-	drm_connector_helper_add(connector, &mdfld_dsi_connector_helper_funcs);
-
-	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
-	connector->display_info.width_mm = width_mm;
-	connector->display_info.height_mm = height_mm;
-	connector->interlace_allowed = false;
-	connector->doublescan_allowed = false;
-
-	/*attach properties*/
-	drm_object_attach_property(&connector->base,
-				dev->mode_config.scaling_mode_property,
-				DRM_MODE_SCALE_FULLSCREEN);
-	drm_object_attach_property(&connector->base,
-				dev_priv->backlight_property,
-				MDFLD_DSI_BRIGHTNESS_MAX_LEVEL);
-
-	/*init DSI package sender on this output*/
-	if (mdfld_dsi_pkg_sender_init(dsi_connector, pipe)) {
-		DRM_ERROR("Package Sender initialization failed on pipe %d\n",
-									pipe);
-		goto dsi_init_err0;
-	}
-
-	encoder = mdfld_dsi_dpi_init(dev, dsi_connector, p_vid_funcs);
-	if (!encoder) {
-		DRM_ERROR("Create DPI encoder failed\n");
-		goto dsi_init_err1;
-	}
-	encoder->private = dsi_config;
-	dsi_config->encoder = encoder;
-	encoder->base.type = (pipe == 0) ? INTEL_OUTPUT_MIPI :
-		INTEL_OUTPUT_MIPI2;
-	drm_connector_register(connector);
-	return;
-
-	/*TODO: add code to destroy outputs on error*/
-dsi_init_err1:
-	/*destroy sender*/
-	mdfld_dsi_pkg_sender_destroy(dsi_connector->pkg_sender);
-
-	drm_connector_cleanup(connector);
-
-	kfree(dsi_config->fixed_mode);
-	kfree(dsi_config);
-dsi_init_err0:
-	kfree(dsi_connector);
-}

drivers/gpu/drm/gma500/mdfld_dsi_output.h

···
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * jim liu <[e-mail]>
- * Jackie Li<[e-mail]>
- */
-
-#ifndef __MDFLD_DSI_OUTPUT_H__
-#define __MDFLD_DSI_OUTPUT_H__
-
-#include <linux/backlight.h>
-
-#include <asm/intel-mid.h>
-
-#include <drm/drm.h>
-#include <drm/drm_crtc.h>
-#include <drm/drm_edid.h>
-
-#include "mdfld_output.h"
-#include "psb_drv.h"
-#include "psb_intel_drv.h"
-#include "psb_intel_reg.h"
-
-#define FLD_MASK(start, end)	(((1 << ((start) - (end) + 1)) - 1) << (end))
-#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
-#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end))
-#define FLD_MOD(orig, val, start, end) \
-	(((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))
-
-#define REG_FLD_MOD(reg, val, start, end) \
-	REG_WRITE(reg, FLD_MOD(REG_READ(reg), val, start, end))
-
-static inline int REGISTER_FLD_WAIT(struct drm_device *dev, u32 reg,
-		u32 val, int start, int end)
-{
-	int t = 100000;
-
-	while (FLD_GET(REG_READ(reg), start, end) != val) {
-		if (--t == 0)
-			return 1;
-	}
-
-	return 0;
-}
-
-#define REG_FLD_WAIT(reg, val, start, end) \
-	REGISTER_FLD_WAIT(dev, reg, val, start, end)
-
-#define REG_BIT_WAIT(reg, val, bitnum) \
-	REGISTER_FLD_WAIT(dev, reg, val, bitnum, bitnum)
-
-#define MDFLD_DSI_BRIGHTNESS_MAX_LEVEL 100
-
-#ifdef DEBUG
-#define CHECK_PIPE(pipe) ({			\
-	const typeof(pipe) __pipe = (pipe);	\
-	BUG_ON(__pipe != 0 && __pipe != 2);	\
-	__pipe;	})
-#else
-#define CHECK_PIPE(pipe) (pipe)
-#endif
-
-/*
- * Actual MIPIA->MIPIC reg offset is 0x800, value 0x400 is valid for 0 and 2
- */
-#define REG_OFFSET(pipe) (CHECK_PIPE(pipe) * 0x400)
-
-/* mdfld DSI controller registers */
-#define MIPI_DEVICE_READY_REG(pipe)		(0xb000 + REG_OFFSET(pipe))
-#define MIPI_INTR_STAT_REG(pipe)		(0xb004 + REG_OFFSET(pipe))
-#define MIPI_INTR_EN_REG(pipe)			(0xb008 + REG_OFFSET(pipe))
-#define MIPI_DSI_FUNC_PRG_REG(pipe)		(0xb00c + REG_OFFSET(pipe))
-#define MIPI_HS_TX_TIMEOUT_REG(pipe)		(0xb010 + REG_OFFSET(pipe))
-#define MIPI_LP_RX_TIMEOUT_REG(pipe)		(0xb014 + REG_OFFSET(pipe))
-#define MIPI_TURN_AROUND_TIMEOUT_REG(pipe)	(0xb018 + REG_OFFSET(pipe))
-#define MIPI_DEVICE_RESET_TIMER_REG(pipe)	(0xb01c + REG_OFFSET(pipe))
-#define MIPI_DPI_RESOLUTION_REG(pipe)		(0xb020 + REG_OFFSET(pipe))
-#define MIPI_DBI_FIFO_THROTTLE_REG(pipe)	(0xb024 + REG_OFFSET(pipe))
-#define MIPI_HSYNC_COUNT_REG(pipe)		(0xb028 + REG_OFFSET(pipe))
-#define MIPI_HBP_COUNT_REG(pipe)		(0xb02c + REG_OFFSET(pipe))
-#define MIPI_HFP_COUNT_REG(pipe)		(0xb030 + REG_OFFSET(pipe))
-#define MIPI_HACTIVE_COUNT_REG(pipe)		(0xb034 + REG_OFFSET(pipe))
-#define MIPI_VSYNC_COUNT_REG(pipe)		(0xb038 + REG_OFFSET(pipe))
-#define MIPI_VBP_COUNT_REG(pipe)		(0xb03c + REG_OFFSET(pipe))
-#define MIPI_VFP_COUNT_REG(pipe)		(0xb040 + REG_OFFSET(pipe))
-#define MIPI_HIGH_LOW_SWITCH_COUNT_REG(pipe)	(0xb044 + REG_OFFSET(pipe))
-#define MIPI_DPI_CONTROL_REG(pipe)		(0xb048 + REG_OFFSET(pipe))
-#define MIPI_DPI_DATA_REG(pipe)			(0xb04c + REG_OFFSET(pipe))
-#define MIPI_INIT_COUNT_REG(pipe)		(0xb050 + REG_OFFSET(pipe))
-#define MIPI_MAX_RETURN_PACK_SIZE_REG(pipe)	(0xb054 + REG_OFFSET(pipe))
-#define MIPI_VIDEO_MODE_FORMAT_REG(pipe)	(0xb058 + REG_OFFSET(pipe))
-#define MIPI_EOT_DISABLE_REG(pipe)		(0xb05c + REG_OFFSET(pipe))
-#define MIPI_LP_BYTECLK_REG(pipe)		(0xb060 + REG_OFFSET(pipe))
-#define MIPI_LP_GEN_DATA_REG(pipe)		(0xb064 + REG_OFFSET(pipe))
-#define MIPI_HS_GEN_DATA_REG(pipe)		(0xb068 + REG_OFFSET(pipe))
-#define MIPI_LP_GEN_CTRL_REG(pipe)		(0xb06c + REG_OFFSET(pipe))
-#define MIPI_HS_GEN_CTRL_REG(pipe)		(0xb070 + REG_OFFSET(pipe))
-#define MIPI_GEN_FIFO_STAT_REG(pipe)		(0xb074 + REG_OFFSET(pipe))
-#define MIPI_HS_LS_DBI_ENABLE_REG(pipe)		(0xb078 + REG_OFFSET(pipe))
-#define MIPI_DPHY_PARAM_REG(pipe)		(0xb080 + REG_OFFSET(pipe))
-#define MIPI_DBI_BW_CTRL_REG(pipe)		(0xb084 + REG_OFFSET(pipe))
-#define MIPI_CLK_LANE_SWITCH_TIME_CNT_REG(pipe)	(0xb088 + REG_OFFSET(pipe))
-
-#define MIPI_CTRL_REG(pipe)			(0xb104 + REG_OFFSET(pipe))
-#define MIPI_DATA_ADD_REG(pipe)			(0xb108 + REG_OFFSET(pipe))
-#define MIPI_DATA_LEN_REG(pipe)			(0xb10c + REG_OFFSET(pipe))
-#define MIPI_CMD_ADD_REG(pipe)			(0xb110 + REG_OFFSET(pipe))
-#define MIPI_CMD_LEN_REG(pipe)			(0xb114 + REG_OFFSET(pipe))
-
-/* non-uniform reg offset */
-#define MIPI_PORT_CONTROL(pipe)		(CHECK_PIPE(pipe) ? MIPI_C : MIPI)
-
-#define DSI_DEVICE_READY				(0x1)
-#define DSI_POWER_STATE_ULPS_ENTER			(0x2 << 1)
-#define DSI_POWER_STATE_ULPS_EXIT			(0x1 << 1)
-#define DSI_POWER_STATE_ULPS_OFFSET			(0x1)
-
-
-#define DSI_ONE_DATA_LANE					(0x1)
-#define DSI_TWO_DATA_LANE					(0x2)
-#define DSI_THREE_DATA_LANE					(0X3)
-#define DSI_FOUR_DATA_LANE					(0x4)
-#define DSI_DPI_VIRT_CHANNEL_OFFSET			(0x3)
-#define DSI_DBI_VIRT_CHANNEL_OFFSET			(0x5)
-#define DSI_DPI_COLOR_FORMAT_RGB565			(0x01 << 7)
-#define DSI_DPI_COLOR_FORMAT_RGB666			(0x02 << 7)
-#define DSI_DPI_COLOR_FORMAT_RGB666_UNPACK		(0x03 << 7)
-#define DSI_DPI_COLOR_FORMAT_RGB888			(0x04 << 7)
-#define DSI_DBI_COLOR_FORMAT_OPTION2			(0x05 << 13)
-
-#define DSI_INTR_STATE_RXSOTERROR			BIT(0)
-
-#define DSI_INTR_STATE_SPL_PKG_SENT			BIT(30)
-#define DSI_INTR_STATE_TE				BIT(31)
-
-#define DSI_HS_TX_TIMEOUT_MASK				(0xffffff)
-
-#define DSI_LP_RX_TIMEOUT_MASK				(0xffffff)
-
-#define DSI_TURN_AROUND_TIMEOUT_MASK		(0x3f)
-
-#define DSI_RESET_TIMER_MASK				(0xffff)
-
-#define DSI_DBI_FIFO_WM_HALF				(0x0)
-#define DSI_DBI_FIFO_WM_QUARTER				(0x1)
-#define DSI_DBI_FIFO_WM_LOW					(0x2)
-
-#define DSI_DPI_TIMING_MASK					(0xffff)
-
-#define DSI_INIT_TIMER_MASK					(0xffff)
-
-#define DSI_DBI_RETURN_PACK_SIZE_MASK		(0x3ff)
-
-#define DSI_LP_BYTECLK_MASK					(0x0ffff)
-
-#define DSI_HS_CTRL_GEN_SHORT_W0			(0x03)
-#define DSI_HS_CTRL_GEN_SHORT_W1			(0x13)
-#define DSI_HS_CTRL_GEN_SHORT_W2			(0x23)
-#define DSI_HS_CTRL_GEN_R0					(0x04)
-#define DSI_HS_CTRL_GEN_R1					(0x14)
-#define DSI_HS_CTRL_GEN_R2					(0x24)
-#define DSI_HS_CTRL_GEN_LONG_W				(0x29)
-#define DSI_HS_CTRL_MCS_SHORT_W0			(0x05)
-#define DSI_HS_CTRL_MCS_SHORT_W1			(0x15)
-#define DSI_HS_CTRL_MCS_R0					(0x06)
-#define DSI_HS_CTRL_MCS_LONG_W				(0x39)
-#define DSI_HS_CTRL_VC_OFFSET				(0x06)
-#define DSI_HS_CTRL_WC_OFFSET				(0x08)
-
-#define	DSI_FIFO_GEN_HS_DATA_FULL			BIT(0)
-#define DSI_FIFO_GEN_HS_DATA_HALF_EMPTY		BIT(1)
-#define DSI_FIFO_GEN_HS_DATA_EMPTY			BIT(2)
-#define DSI_FIFO_GEN_LP_DATA_FULL			BIT(8)
-#define DSI_FIFO_GEN_LP_DATA_HALF_EMPTY		BIT(9)
-#define DSI_FIFO_GEN_LP_DATA_EMPTY			BIT(10)
-#define DSI_FIFO_GEN_HS_CTRL_FULL			BIT(16)
-#define DSI_FIFO_GEN_HS_CTRL_HALF_EMPTY		BIT(17)
-#define DSI_FIFO_GEN_HS_CTRL_EMPTY			BIT(18)
-#define DSI_FIFO_GEN_LP_CTRL_FULL			BIT(24)
-#define DSI_FIFO_GEN_LP_CTRL_HALF_EMPTY		BIT(25)
-#define DSI_FIFO_GEN_LP_CTRL_EMPTY			BIT(26)
-#define DSI_FIFO_DBI_EMPTY					BIT(27)
-#define DSI_FIFO_DPI_EMPTY					BIT(28)
-
-#define DSI_DBI_HS_LP_SWITCH_MASK			(0x1)
-
-#define DSI_HS_LP_SWITCH_COUNTER_OFFSET		(0x0)
-#define DSI_LP_HS_SWITCH_COUNTER_OFFSET		(0x16)
-
-#define DSI_DPI_CTRL_HS_SHUTDOWN			(0x00000001)
-#define DSI_DPI_CTRL_HS_TURN_ON				(0x00000002)
-
-/*dsi power modes*/
-#define DSI_POWER_MODE_DISPLAY_ON	BIT(2)
-#define DSI_POWER_MODE_NORMAL_ON	BIT(3)
-#define DSI_POWER_MODE_SLEEP_OUT	BIT(4)
-#define DSI_POWER_MODE_PARTIAL_ON	BIT(5)
-#define DSI_POWER_MODE_IDLE_ON		BIT(6)
-
-enum {
-	MDFLD_DSI_VIDEO_NON_BURST_MODE_SYNC_PULSE = 1,
-	MDFLD_DSI_VIDEO_NON_BURST_MODE_SYNC_EVENTS = 2,
-	MDFLD_DSI_VIDEO_BURST_MODE = 3,
-};
-
-#define DSI_DPI_COMPLETE_LAST_LINE			BIT(2)
-#define DSI_DPI_DISABLE_BTA					BIT(3)
-
-struct mdfld_dsi_connector {
-	struct gma_connector base;
-
-	int pipe;
-	void *private;
-	void *pkg_sender;
-
-	/* Connection status */
-	enum drm_connector_status status;
-};
-
-struct mdfld_dsi_encoder {
-	struct gma_encoder base;
-	void *private;
-};
-
-/*
- * DSI config, consists of one DSI connector, two DSI encoders.
- * DRM will pick up on DSI encoder basing on differents configs.
- */
-struct mdfld_dsi_config {
-	struct drm_device *dev;
-	struct drm_display_mode *fixed_mode;
-	struct drm_display_mode *mode;
-
-	struct mdfld_dsi_connector *connector;
-	struct mdfld_dsi_encoder *encoder;
-
-	int changed;
-
-	int bpp;
-	int lane_count;
-	/*Virtual channel number for this encoder*/
-	int channel_num;
-	/*video mode configure*/
-	int video_mode;
-
-	int dvr_ic_inited;
-};
-
-static inline struct mdfld_dsi_connector *mdfld_dsi_connector(
-		struct drm_connector *connector)
-{
-	struct gma_connector *gma_connector;
-
-	gma_connector = to_gma_connector(connector);
-
-	return container_of(gma_connector, struct mdfld_dsi_connector, base);
-}
-
-static inline struct mdfld_dsi_encoder *mdfld_dsi_encoder(
-		struct drm_encoder *encoder)
-{
-	struct gma_encoder *gma_encoder;
-
-	gma_encoder = to_gma_encoder(encoder);
-
-	return container_of(gma_encoder, struct mdfld_dsi_encoder, base);
-}
-
-static inline struct mdfld_dsi_config *
-	mdfld_dsi_get_config(struct mdfld_dsi_connector *connector)
-{
-	if (!connector)
-		return NULL;
-	return (struct mdfld_dsi_config *)connector->private;
-}
-
-static inline void *mdfld_dsi_get_pkg_sender(struct mdfld_dsi_config *config)
-{
-	struct mdfld_dsi_connector *dsi_connector;
-
-	if (!config)
-		return NULL;
-
-	dsi_connector = config->connector;
-
-	if (!dsi_connector)
-		return NULL;
-
-	return dsi_connector->pkg_sender;
-}
-
-static inline struct mdfld_dsi_config *
-	mdfld_dsi_encoder_get_config(struct mdfld_dsi_encoder *encoder)
-{
-	if (!encoder)
-		return NULL;
-	return (struct mdfld_dsi_config *)encoder->private;
-}
-
-static inline struct mdfld_dsi_connector *
-	mdfld_dsi_encoder_get_connector(struct mdfld_dsi_encoder *encoder)
-{
-	struct mdfld_dsi_config *config;
-
-	if (!encoder)
-		return NULL;
-
-	config = mdfld_dsi_encoder_get_config(encoder);
-	if (!config)
-		return NULL;
-
-	return config->connector;
-}
-
-static inline void *mdfld_dsi_encoder_get_pkg_sender(
-				struct mdfld_dsi_encoder *encoder)
-{
-	struct mdfld_dsi_config *dsi_config;
-
-	dsi_config = mdfld_dsi_encoder_get_config(encoder);
-	if (!dsi_config)
-		return NULL;
-
-	return mdfld_dsi_get_pkg_sender(dsi_config);
-}
-
-static inline int mdfld_dsi_encoder_get_pipe(struct mdfld_dsi_encoder *encoder)
-{
-	struct mdfld_dsi_connector *connector;
-
-	if (!encoder)
-		return -1;
-
-	connector = mdfld_dsi_encoder_get_connector(encoder);
-	if (!connector)
-		return -1;
-	return connector->pipe;
-}
-
-/* Export functions */
-extern void mdfld_dsi_gen_fifo_ready(struct drm_device *dev,
-					u32 gen_fifo_stat_reg, u32 fifo_stat);
-extern void mdfld_dsi_brightness_init(struct mdfld_dsi_config *dsi_config,
-					int pipe);
-extern void mdfld_dsi_brightness_control(struct drm_device *dev, int pipe,
-					int level);
-extern void mdfld_dsi_output_init(struct drm_device *dev,
-					int pipe,
-					const struct panel_funcs *p_vid_funcs);
-extern void mdfld_dsi_controller_init(struct mdfld_dsi_config *dsi_config,
-					int pipe);
-
-extern int mdfld_dsi_get_power_mode(struct mdfld_dsi_config *dsi_config,
-					u32 *mode, bool hs);
-extern int mdfld_dsi_panel_reset(struct drm_device *dev, int pipe);
-
-#endif /*__MDFLD_DSI_OUTPUT_H__*/

drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.c

···
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Jackie Li<[e-mail]>
- */
-
-#include <linux/delay.h>
-#include <linux/freezer.h>
-
-#include <video/mipi_display.h>
-
-#include "mdfld_dsi_dpi.h"
-#include "mdfld_dsi_output.h"
-#include "mdfld_dsi_pkg_sender.h"
-
-#define MDFLD_DSI_READ_MAX_COUNT		5000
-
-enum {
-	MDFLD_DSI_PANEL_MODE_SLEEP = 0x1,
-};
-
-enum {
-	MDFLD_DSI_PKG_SENDER_FREE = 0x0,
-	MDFLD_DSI_PKG_SENDER_BUSY = 0x1,
-};
-
-static const char *const dsi_errors[] = {
-	"RX SOT Error",
-	"RX SOT Sync Error",
-	"RX EOT Sync Error",
-	"RX Escape Mode Entry Error",
-	"RX LP TX Sync Error",
-	"RX HS Receive Timeout Error",
-	"RX False Control Error",
-	"RX ECC Single Bit Error",
-	"RX ECC Multibit Error",
-	"RX Checksum Error",
-	"RX DSI Data Type Not Recognised",
-	"RX DSI VC ID Invalid",
-	"TX False Control Error",
-	"TX ECC Single Bit Error",
-	"TX ECC Multibit Error",
-	"TX Checksum Error",
-	"TX DSI Data Type Not Recognised",
-	"TX DSI VC ID invalid",
-	"High Contention",
-	"Low contention",
-	"DPI FIFO Under run",
-	"HS TX Timeout",
-	"LP RX Timeout",
-	"Turn Around ACK Timeout",
-	"ACK With No Error",
-	"RX Invalid TX Length",
-	"RX Prot Violation",
-	"HS Generic Write FIFO Full",
-	"LP Generic Write FIFO Full",
-	"Generic Read Data Avail",
-	"Special Packet Sent",
-	"Tearing Effect",
-};
-
-static inline int wait_for_gen_fifo_empty(struct mdfld_dsi_pkg_sender *sender,
-						u32 mask)
-{
-	struct drm_device *dev = sender->dev;
-	u32 gen_fifo_stat_reg = sender->mipi_gen_fifo_stat_reg;
-	int retry = 0xffff;
-
-	while (retry--) {
-		if ((mask & REG_READ(gen_fifo_stat_reg)) == mask)
-			return 0;
-		udelay(100);
-	}
-	DRM_ERROR("fifo is NOT empty 0x%08x\n", REG_READ(gen_fifo_stat_reg));
-	return -EIO;
-}
-
-static int wait_for_all_fifos_empty(struct mdfld_dsi_pkg_sender *sender)
-{
-	return wait_for_gen_fifo_empty(sender, (BIT(2) | BIT(10) | BIT(18) |
-						BIT(26) | BIT(27) | BIT(28)));
-}
-
-static int wait_for_lp_fifos_empty(struct mdfld_dsi_pkg_sender *sender)
-{
-	return wait_for_gen_fifo_empty(sender, (BIT(10) | BIT(26)));
-}
-
-static int wait_for_hs_fifos_empty(struct mdfld_dsi_pkg_sender *sender)
-{
-	return wait_for_gen_fifo_empty(sender, (BIT(2) | BIT(18)));
-}
-
-static int handle_dsi_error(struct mdfld_dsi_pkg_sender *sender, u32 mask)
-{
-	u32 intr_stat_reg = sender->mipi_intr_stat_reg;
-	struct drm_device *dev = sender->dev;
-
-	dev_dbg(sender->dev->dev, "Handling error 0x%08x\n", mask);
-
-	switch (mask) {
-	case BIT(0):
-	case BIT(1):
-	case BIT(2):
-	case BIT(3):
-	case BIT(4):
-	case BIT(5):
-	case BIT(6):
-	case BIT(7):
-	case BIT(8):
-	case BIT(9):
-	case BIT(10):
-	case BIT(11):
-	case BIT(12):
-	case BIT(13):
-		dev_dbg(sender->dev->dev, "No Action required\n");
-		break;
-	case BIT(14):
-		/*wait for all fifo empty*/
-		/*wait_for_all_fifos_empty(sender)*/
-		break;
-	case BIT(15):
-		dev_dbg(sender->dev->dev, "No Action required\n");
-		break;
-	case BIT(16):
-		break;
-	case BIT(17):
-		break;
-	case BIT(18):
-	case BIT(19):
-		dev_dbg(sender->dev->dev, "High/Low contention detected\n");
-		/*wait for contention recovery time*/
-		/*mdelay(10);*/
-		/*wait for all fifo empty*/
-		if (0)
-			wait_for_all_fifos_empty(sender);
-		break;
-	case BIT(20):
-		dev_dbg(sender->dev->dev, "No Action required\n");
-		break;
-	case BIT(21):
-		/*wait for all fifo empty*/
-		/*wait_for_all_fifos_empty(sender);*/
-		break;
-	case BIT(22):
-		break;
-	case BIT(23):
-	case BIT(24):
-	case BIT(25):
-	case BIT(26):
-	case BIT(27):
-		dev_dbg(sender->dev->dev, "HS Gen fifo full\n");
-		REG_WRITE(intr_stat_reg, mask);
-		wait_for_hs_fifos_empty(sender);
-		break;
-	case BIT(28):
-		dev_dbg(sender->dev->dev, "LP Gen fifo full\n");
-		REG_WRITE(intr_stat_reg, mask);
-		wait_for_lp_fifos_empty(sender);
-		break;
-	case BIT(29):
-	case BIT(30):
-	case BIT(31):
-		dev_dbg(sender->dev->dev, "No Action required\n");
-		break;
-	}
-
-	if (mask & REG_READ(intr_stat_reg))
-		dev_dbg(sender->dev->dev,
-				"Cannot clean interrupt 0x%08x\n", mask);
-	return 0;
-}
-
-static int dsi_error_handler(struct mdfld_dsi_pkg_sender *sender)
-{
-	struct drm_device *dev = sender->dev;
-	u32 intr_stat_reg = sender->mipi_intr_stat_reg;
-	u32 mask;
-	u32 intr_stat;
-	int i;
-	int err = 0;
-
-	intr_stat = REG_READ(intr_stat_reg);
-
-	for (i = 0; i < 32; i++) {
-		mask = (0x00000001UL) << i;
-		if (intr_stat & mask) {
-			dev_dbg(sender->dev->dev, "[DSI]: %s\n", dsi_errors[i]);
-			err = handle_dsi_error(sender, mask);
-			if (err)
-				DRM_ERROR("Cannot handle error\n");
-		}
-	}
-	return err;
-}
-
-static int send_short_pkg(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
-			u8 cmd, u8 param, bool hs)
-{
-	struct drm_device *dev = sender->dev;
-	u32 ctrl_reg;
-	u32 val;
-	u8 virtual_channel = 0;
-
-	if (hs) {
-		ctrl_reg = sender->mipi_hs_gen_ctrl_reg;
-
-		/* FIXME: wait_for_hs_fifos_empty(sender); */
-	} else {
-		ctrl_reg = sender->mipi_lp_gen_ctrl_reg;
-
-		/* FIXME: wait_for_lp_fifos_empty(sender); */
-	}
-
-	val = FLD_VAL(param, 23, 16) | FLD_VAL(cmd, 15, 8) |
-		FLD_VAL(virtual_channel, 7, 6) | FLD_VAL(data_type, 5, 0);
-
-	REG_WRITE(ctrl_reg, val);
-
-	return 0;
-}
-
-static int send_long_pkg(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
-			u8 *data, int len, bool hs)
-{
-	struct drm_device *dev = sender->dev;
-	u32 ctrl_reg;
-	u32 data_reg;
-	u32 val;
-	u8 *p;
-	u8 b1, b2, b3, b4;
-	u8 virtual_channel = 0;
-	int i;
-
-	if (hs) {
-		ctrl_reg = sender->mipi_hs_gen_ctrl_reg;
-		data_reg = sender->mipi_hs_gen_data_reg;
-
-		/* FIXME: wait_for_hs_fifos_empty(sender); */
-	} else {
-		ctrl_reg = sender->mipi_lp_gen_ctrl_reg;
-		data_reg = sender->mipi_lp_gen_data_reg;
-
-		/* FIXME: wait_for_lp_fifos_empty(sender); */
-	}
-
-	p = data;
-	for (i = 0; i < len / 4; i++) {
-		b1 = *p++;
-		b2 = *p++;
-		b3 = *p++;
-		b4 = *p++;
-
-		REG_WRITE(data_reg, b4 << 24 | b3 << 16 | b2 << 8 | b1);
-	}
-
-	i = len % 4;
-	if (i) {
-		b1 = 0; b2 = 0; b3 = 0;
-
-		switch (i) {
-		case 3:
-			b1 = *p++;
-			b2 = *p++;
-			b3 = *p++;
-			break;
-		case 2:
-			b1 = *p++;
-			b2 = *p++;
-			break;
-		case 1:
-			b1 = *p++;
-			break;
-		}
-
-		REG_WRITE(data_reg, b3 << 16 | b2 << 8 | b1);
-	}
-
-	val = FLD_VAL(len, 23, 8) | FLD_VAL(virtual_channel, 7, 6) |
-		FLD_VAL(data_type, 5, 0);
-
-	REG_WRITE(ctrl_reg, val);
-
-	return 0;
-}
-
-static int send_pkg_prepare(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
-			u8 *data, u16 len)
-{
-	u8 cmd;
-
-	switch (data_type) {
-	case MIPI_DSI_DCS_SHORT_WRITE:
-	case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
-	case MIPI_DSI_DCS_LONG_WRITE:
-		cmd = *data;
-		break;
-	default:
-		return 0;
-	}
-
-	/*this prevents other package sending while doing msleep*/
-	sender->status = MDFLD_DSI_PKG_SENDER_BUSY;
-
-	/*wait for 120 milliseconds in case exit_sleep_mode just be sent*/
-	if (unlikely(cmd == MIPI_DCS_ENTER_SLEEP_MODE)) {
-		/*TODO: replace it with msleep later*/
-		mdelay(120);
-	}
-
-	if (unlikely(cmd == MIPI_DCS_EXIT_SLEEP_MODE)) {
-		/*TODO: replace it with msleep later*/
-		mdelay(120);
-	}
-	return 0;
-}
-
-static int send_pkg_done(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
-			u8 *data, u16 len)
-{
-	u8 cmd;
-
-	switch (data_type) {
-	case MIPI_DSI_DCS_SHORT_WRITE:
-	case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
-	case MIPI_DSI_DCS_LONG_WRITE:
-		cmd = *data;
-		break;
-	default:
-		return 0;
-	}
-
-	/*update panel status*/
-	if (unlikely(cmd == MIPI_DCS_ENTER_SLEEP_MODE)) {
-		sender->panel_mode |= MDFLD_DSI_PANEL_MODE_SLEEP;
-		/*TODO: replace it with msleep later*/
-		mdelay(120);
-	} else if (unlikely(cmd == MIPI_DCS_EXIT_SLEEP_MODE)) {
-		sender->panel_mode &= ~MDFLD_DSI_PANEL_MODE_SLEEP;
-		/*TODO: replace it with msleep later*/
-		mdelay(120);
-	} else if (unlikely(cmd == MIPI_DCS_SOFT_RESET)) {
-		/*TODO: replace it with msleep later*/
-		mdelay(5);
-	}
-
-	sender->status = MDFLD_DSI_PKG_SENDER_FREE;
-
-	return 0;
-}
-
-static int send_pkg(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
-		u8 *data, u16 len, bool hs)
-{
-	int ret;
-
-	/*handle DSI error*/
-	ret = dsi_error_handler(sender);
-	if (ret) {
-		DRM_ERROR("Error handling failed\n");
-		return -EAGAIN;
-	}
-
-	/* send pkg */
-	if (sender->status == MDFLD_DSI_PKG_SENDER_BUSY) {
-		DRM_ERROR("sender is busy\n");
-		return -EAGAIN;
-	}
-
-	ret = send_pkg_prepare(sender, data_type, data, len);
-	if (ret) {
-		DRM_ERROR("send_pkg_prepare error\n");
-		return ret;
-	}
-
-	switch (data_type) {
-	case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:
-	case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM:
-	case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM:
-	case MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM:
-	case MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM:
-	case MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM:
-	case MIPI_DSI_DCS_SHORT_WRITE:
-	case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
-	case MIPI_DSI_DCS_READ:
-		ret = send_short_pkg(sender, data_type, data[0], data[1], hs);
-		break;
-	case MIPI_DSI_GENERIC_LONG_WRITE:
-	case MIPI_DSI_DCS_LONG_WRITE:
-		ret = send_long_pkg(sender, data_type, data, len, hs);
-		break;
-	}
-
-	send_pkg_done(sender, data_type, data, len);
-
-	/*FIXME: should I query complete and fifo empty here?*/
-
-	return ret;
-}
-
-int mdfld_dsi_send_mcs_long(struct mdfld_dsi_pkg_sender *sender, u8 *data,
-			u32 len, bool hs)
-{
-	unsigned long flags;
-
-	if (!sender || !data || !len) {
-		DRM_ERROR("Invalid parameters\n");
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&sender->lock, flags);
-	send_pkg(sender, MIPI_DSI_DCS_LONG_WRITE, data, len, hs);
-	spin_unlock_irqrestore(&sender->lock, flags);
-
-	return 0;
-}
-
-int mdfld_dsi_send_mcs_short(struct mdfld_dsi_pkg_sender *sender, u8 cmd,
-			u8 param, u8 param_num, bool hs)
-{
-	u8 data[2];
-	unsigned long flags;
-	u8 data_type;
-
-	if (!sender) {
-		DRM_ERROR("Invalid parameter\n");
-		return -EINVAL;
-	}
-
-	data[0] = cmd;
-
-	if (param_num) {
-		data_type = MIPI_DSI_DCS_SHORT_WRITE_PARAM;
-		data[1] = param;
-	} else {
-		data_type = MIPI_DSI_DCS_SHORT_WRITE;
-		data[1] = 0;
-	}
-
-	spin_lock_irqsave(&sender->lock, flags);
-	send_pkg(sender, data_type, data, sizeof(data), hs);
-	spin_unlock_irqrestore(&sender->lock, flags);
-
-	return 0;
-}
-
-int mdfld_dsi_send_gen_short(struct mdfld_dsi_pkg_sender *sender, u8 param0,
-			u8 param1, u8 param_num, bool hs)
-{
-	u8 data[2];
-	unsigned long flags;
-	u8 data_type;
-
-	if (!sender || param_num > 2) {
-		DRM_ERROR("Invalid parameter\n");
-		return -EINVAL;
-	}
-
-	switch (param_num) {
-	case 0:
-		data_type = MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM;
-		data[0] = 0;
-		data[1] = 0;
-		break;
-	case 1:
-		data_type = MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM;
-		data[0] = param0;
-		data[1] = 0;
-		break;
-	case 2:
-		data_type = MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM;
-		data[0] = param0;
-		data[1] = param1;
-		break;
-	}
-
-	spin_lock_irqsave(&sender->lock, flags);
-	send_pkg(sender, data_type, data, sizeof(data), hs);
-	spin_unlock_irqrestore(&sender->lock, flags);
-
-	return 0;
-}
-
-int mdfld_dsi_send_gen_long(struct mdfld_dsi_pkg_sender *sender, u8 *data,
-			u32 len, bool hs)
-{
-	unsigned long flags;
-
-	if (!sender || !data || !len) {
-		DRM_ERROR("Invalid parameters\n");
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&sender->lock, flags);
-	send_pkg(sender, MIPI_DSI_GENERIC_LONG_WRITE, data, len, hs);
-	spin_unlock_irqrestore(&sender->lock, flags);
-
-	return 0;
-}
-
-static int __read_panel_data(struct mdfld_dsi_pkg_sender *sender, u8 data_type,
-			u8 *data, u16 len, u32 *data_out, u16 len_out, bool hs)
-{
-	unsigned long flags;
-	struct drm_device *dev;
-	int i;
-	u32 gen_data_reg;
-	int retry = MDFLD_DSI_READ_MAX_COUNT;
-
-	if (!sender || !data_out || !len_out) {
-		DRM_ERROR("Invalid parameters\n");
-		return -EINVAL;
-	}
-
-	dev = sender->dev;
-
-	/**
-	 * do reading.
-	 * 0) send out generic read request
-	 * 1) polling read data avail interrupt
-	 * 2) read data
-	 */
-	spin_lock_irqsave(&sender->lock, flags);
-
-	REG_WRITE(sender->mipi_intr_stat_reg, BIT(29));
-
-	if ((REG_READ(sender->mipi_intr_stat_reg) & BIT(29)))
-		DRM_ERROR("Can NOT clean read data valid interrupt\n");
-
-	/*send out read request*/
-	send_pkg(sender, data_type, data, len, hs);
-
-	/*polling read data avail interrupt*/
-	while (retry && !(REG_READ(sender->mipi_intr_stat_reg) & BIT(29))) {
-		udelay(100);
-		retry--;
-	}
-
-	if (!retry) {
-		spin_unlock_irqrestore(&sender->lock, flags);
-		return -ETIMEDOUT;
-	}
-
-	REG_WRITE(sender->mipi_intr_stat_reg, BIT(29));
-
-	/*read data*/
-	if (hs)
-		gen_data_reg = sender->mipi_hs_gen_data_reg;
-	else
-		gen_data_reg = sender->mipi_lp_gen_data_reg;
-
-	for (i = 0; i < len_out; i++)
-		*(data_out + i) = REG_READ(gen_data_reg);
-
-	spin_unlock_irqrestore(&sender->lock, flags);
-
-	return 0;
-}
-
-int mdfld_dsi_read_mcs(struct mdfld_dsi_pkg_sender *sender, u8 cmd,
-		u32 *data, u16 len, bool hs)
-{
-	if (!sender || !data || !len) {
-		DRM_ERROR("Invalid parameters\n");
-		return -EINVAL;
-	}
-
-	return __read_panel_data(sender, MIPI_DSI_DCS_READ, &cmd, 1,
-				data, len, hs);
-}
-
-int mdfld_dsi_pkg_sender_init(struct mdfld_dsi_connector *dsi_connector,
-								int pipe)
-{
-	struct mdfld_dsi_pkg_sender *pkg_sender;
-	struct mdfld_dsi_config *dsi_config =
-				mdfld_dsi_get_config(dsi_connector);
-	struct drm_device *dev = dsi_config->dev;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	const struct psb_offset *map = &dev_priv->regmap[pipe];
-	u32 mipi_val = 0;
-
-	if (!dsi_connector) {
-		DRM_ERROR("Invalid parameter\n");
-		return -EINVAL;
-	}
-
-	pkg_sender = dsi_connector->pkg_sender;
-
-	if (!pkg_sender || IS_ERR(pkg_sender)) {
-		pkg_sender = kzalloc(sizeof(struct mdfld_dsi_pkg_sender),
-								GFP_KERNEL);
-		if (!pkg_sender) {
-			DRM_ERROR("Create DSI pkg sender failed\n");
-			return -ENOMEM;
-		}
-		dsi_connector->pkg_sender = (void *)pkg_sender;
-	}
-
-	pkg_sender->dev = dev;
-	pkg_sender->dsi_connector = dsi_connector;
-	pkg_sender->pipe = pipe;
-	pkg_sender->pkg_num = 0;
-	pkg_sender->panel_mode = 0;
-	pkg_sender->status = MDFLD_DSI_PKG_SENDER_FREE;
-
-	/*init regs*/
-	/* FIXME: should just copy the regmap ptr ? */
-	pkg_sender->dpll_reg = map->dpll;
-	pkg_sender->dspcntr_reg = map->cntr;
-	pkg_sender->pipeconf_reg = map->conf;
-	pkg_sender->dsplinoff_reg = map->linoff;
-	pkg_sender->dspsurf_reg = map->surf;
-	pkg_sender->pipestat_reg = map->status;
-
-	pkg_sender->mipi_intr_stat_reg = MIPI_INTR_STAT_REG(pipe);
-	pkg_sender->mipi_lp_gen_data_reg = MIPI_LP_GEN_DATA_REG(pipe);
-	pkg_sender->mipi_hs_gen_data_reg = MIPI_HS_GEN_DATA_REG(pipe);
-	pkg_sender->mipi_lp_gen_ctrl_reg = MIPI_LP_GEN_CTRL_REG(pipe);
-	pkg_sender->mipi_hs_gen_ctrl_reg = MIPI_HS_GEN_CTRL_REG(pipe);
-	pkg_sender->mipi_gen_fifo_stat_reg = MIPI_GEN_FIFO_STAT_REG(pipe);
-	pkg_sender->mipi_data_addr_reg = MIPI_DATA_ADD_REG(pipe);
-	pkg_sender->mipi_data_len_reg = MIPI_DATA_LEN_REG(pipe);
-	pkg_sender->mipi_cmd_addr_reg = MIPI_CMD_ADD_REG(pipe);
-	pkg_sender->mipi_cmd_len_reg = MIPI_CMD_LEN_REG(pipe);
-
-	/*init lock*/
-	spin_lock_init(&pkg_sender->lock);
-
-	if (mdfld_get_panel_type(dev, pipe) != TC35876X) {
-		/**
-		 * For video mode, don't enable DPI timing output here,
-		 * will init the DPI timing output during mode setting.
-		 */
-		mipi_val = PASS_FROM_SPHY_TO_AFE | SEL_FLOPPED_HSTX;
-
-		if (pipe == 0)
-			mipi_val |= 0x2;
-
-		REG_WRITE(MIPI_PORT_CONTROL(pipe), mipi_val);
-		REG_READ(MIPI_PORT_CONTROL(pipe));
-
-		/* do dsi controller init */
-		mdfld_dsi_controller_init(dsi_config, pipe);
-	}
-
-	return 0;
-}
-
-void mdfld_dsi_pkg_sender_destroy(struct mdfld_dsi_pkg_sender *sender)
-{
-	if (!sender || IS_ERR(sender))
-		return;
-
-	/*free*/
-	kfree(sender);
-}
-
-

drivers/gpu/drm/gma500/mdfld_dsi_pkg_sender.h

···
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Jackie Li<[e-mail]>
- */
-#ifndef __MDFLD_DSI_PKG_SENDER_H__
-#define __MDFLD_DSI_PKG_SENDER_H__
-
-#include <linux/kthread.h>
-
-#define MDFLD_MAX_DCS_PARAM	8
-
-struct mdfld_dsi_pkg_sender {
-	struct drm_device *dev;
-	struct mdfld_dsi_connector *dsi_connector;
-	u32 status;
-	u32 panel_mode;
-
-	int pipe;
-
-	spinlock_t lock;
-
-	u32 pkg_num;
-
-	/* Registers */
-	u32 dpll_reg;
-	u32 dspcntr_reg;
-	u32 pipeconf_reg;
-	u32 pipestat_reg;
-	u32 dsplinoff_reg;
-	u32 dspsurf_reg;
-
-	u32 mipi_intr_stat_reg;
-	u32 mipi_lp_gen_data_reg;
-	u32 mipi_hs_gen_data_reg;
-	u32 mipi_lp_gen_ctrl_reg;
-	u32 mipi_hs_gen_ctrl_reg;
-	u32 mipi_gen_fifo_stat_reg;
-	u32 mipi_data_addr_reg;
-	u32 mipi_data_len_reg;
-	u32 mipi_cmd_addr_reg;
-	u32 mipi_cmd_len_reg;
-};
-
-extern int mdfld_dsi_pkg_sender_init(struct mdfld_dsi_connector *dsi_connector,
-					int pipe);
-extern void mdfld_dsi_pkg_sender_destroy(struct mdfld_dsi_pkg_sender *sender);
-int mdfld_dsi_send_mcs_short(struct mdfld_dsi_pkg_sender *sender, u8 cmd,
-					u8 param, u8 param_num, bool hs);
-int mdfld_dsi_send_mcs_long(struct mdfld_dsi_pkg_sender *sender, u8 *data,
-					u32 len, bool hs);
-int mdfld_dsi_send_gen_short(struct mdfld_dsi_pkg_sender *sender, u8 param0,
-					u8 param1, u8 param_num, bool hs);
-int mdfld_dsi_send_gen_long(struct mdfld_dsi_pkg_sender *sender, u8 *data,
-					u32 len, bool hs);
-/* Read interfaces */
-int mdfld_dsi_read_mcs(struct mdfld_dsi_pkg_sender *sender, u8 cmd,
-		u32 *data, u16 len, bool hs);
-
-#endif

drivers/gpu/drm/gma500/mdfld_intel_display.c

···
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright © 2006-2007 Intel Corporation
- *
- * Authors:
- *	Eric Anholt <[e-mail]>
- */
-
-#include <linux/delay.h>
-#include <linux/i2c.h>
-#include <linux/pm_runtime.h>
-
-#include <drm/drm_crtc.h>
-#include <drm/drm_fourcc.h>
-
-#include "framebuffer.h"
-#include "gma_display.h"
-#include "mdfld_dsi_output.h"
-#include "mdfld_output.h"
-#include "psb_intel_reg.h"
-
-/* Hardcoded currently */
-static int ksel = KSEL_CRYSTAL_19;
-
-struct psb_intel_range_t {
-	int min, max;
-};
-
-struct mrst_limit_t {
-	struct psb_intel_range_t dot, m, p1;
-};
-
-struct mrst_clock_t {
-	/* derived values */
-	int dot;
-	int m;
-	int p1;
-};
-
-#define COUNT_MAX 0x10000000
-
-void mdfldWaitForPipeDisable(struct drm_device *dev, int pipe)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	const struct psb_offset *map = &dev_priv->regmap[pipe];
-	int count, temp;
-
-	switch (pipe) {
-	case 0:
-	case 1:
-	case 2:
-		break;
-	default:
-		DRM_ERROR("Illegal Pipe Number.\n");
-		return;
-	}
-
-	/* FIXME JLIU7_PO */
-	gma_wait_for_vblank(dev);
-	return;
-
-	/* Wait for for the pipe disable to take effect. */
-	for (count = 0; count < COUNT_MAX; count++) {
-		temp = REG_READ(map->conf);
-		if ((temp & PIPEACONF_PIPE_STATE) == 0)
-			break;
-	}
-}
-
-void mdfldWaitForPipeEnable(struct drm_device *dev, int pipe)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	const struct psb_offset *map = &dev_priv->regmap[pipe];
-	int count, temp;
-
-	switch (pipe) {
-	case 0:
-	case 1:
-	case 2:
-		break;
-	default:
-		DRM_ERROR("Illegal Pipe Number.\n");
-		return;
-	}
-
-	/* FIXME JLIU7_PO */
-	gma_wait_for_vblank(dev);
-	return;
-
-	/* Wait for for the pipe enable to take effect. */
-	for (count = 0; count < COUNT_MAX; count++) {
-		temp = REG_READ(map->conf);
-		if (temp & PIPEACONF_PIPE_STATE)
-			break;
-	}
-}
-
-/*
- * Return the pipe currently connected to the panel fitter,
- * or -1 if the panel fitter is not present or not in use
- */
-static int psb_intel_panel_fitter_pipe(struct drm_device *dev)
-{
-	u32 pfit_control;
-
-	pfit_control = REG_READ(PFIT_CONTROL);
-
-	/* See if the panel fitter is in use */
-	if ((pfit_control & PFIT_ENABLE) == 0)
-		return -1;
-
-	/* 965 can place panel fitter on either pipe */
-	return (pfit_control >> 29) & 0x3;
-}
-
-static int check_fb(struct drm_framebuffer *fb)
-{
-	if (!fb)
-		return 0;
-
-	switch (fb->format->cpp[0] * 8) {
-	case 8:
-	case 16:
-	case 24:
-	case 32:
-		return 0;
-	default:
-		DRM_ERROR("Unknown color depth\n");
-		return -EINVAL;
-	}
-}
-
-static int mdfld__intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
-				struct drm_framebuffer *old_fb)
-{
-	struct drm_device *dev = crtc->dev;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct drm_framebuffer *fb = crtc->primary->fb;
-	struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
-	int pipe = gma_crtc->pipe;
-	const struct psb_offset *map = &dev_priv->regmap[pipe];
-	unsigned long start, offset;
-	u32 dspcntr;
-	int ret;
-
-	dev_dbg(dev->dev, "pipe = 0x%x.\n", pipe);
-
-	/* no fb bound */
-	if (!fb) {
-		dev_dbg(dev->dev, "No FB bound\n");
-		return 0;
-	}
-
-	ret = check_fb(fb);
-	if (ret)
-		return ret;
-
-	if (pipe > 2) {
-		DRM_ERROR("Illegal Pipe Number.\n");
-		return -EINVAL;
-	}
-
-	if (!gma_power_begin(dev, true))
-		return 0;
-
-	start = to_gtt_range(fb->obj[0])->offset;
-	offset = y * fb->pitches[0] + x * fb->format->cpp[0];
-
-	REG_WRITE(map->stride, fb->pitches[0]);
-	dspcntr = REG_READ(map->cntr);
-	dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
-
-	switch (fb->format->cpp[0] * 8) {
-	case 8:
-		dspcntr |= DISPPLANE_8BPP;
-		break;
-	case 16:
-		if (fb->format->depth == 15)
-			dspcntr |= DISPPLANE_15_16BPP;
-		else
-			dspcntr |= DISPPLANE_16BPP;
-		break;
-	case 24:
-	case 32:
-		dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
-		break;
-	}
-	REG_WRITE(map->cntr, dspcntr);
-
-	dev_dbg(dev->dev, "Writing base %08lX %08lX %d %d\n",
-						start, offset, x, y);
-	REG_WRITE(map->linoff, offset);
-	REG_READ(map->linoff);
-	REG_WRITE(map->surf, start);
-	REG_READ(map->surf);
-
-	gma_power_end(dev);
-
-	return 0;
-}
-
-/*
- * Disable the pipe, plane and pll.
- *
- */
-void mdfld_disable_crtc(struct drm_device *dev, int pipe)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	const struct psb_offset *map = &dev_priv->regmap[pipe];
-	u32 temp;
-
-	dev_dbg(dev->dev, "pipe = %d\n", pipe);
-
-
-	if (pipe != 1)
-		mdfld_dsi_gen_fifo_ready(dev, MIPI_GEN_FIFO_STAT_REG(pipe),
-				HS_CTRL_FIFO_EMPTY | HS_DATA_FIFO_EMPTY);
-
-	/* Disable display plane */
-	temp = REG_READ(map->cntr);
-	if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
-		REG_WRITE(map->cntr,
-			  temp & ~DISPLAY_PLANE_ENABLE);
-		/* Flush the plane changes */
-		REG_WRITE(map->base, REG_READ(map->base));
-		REG_READ(map->base);
-	}
-
-	/* FIXME_JLIU7 MDFLD_PO revisit */
-
-	/* Next, disable display pipes */
-	temp = REG_READ(map->conf);
-	if ((temp & PIPEACONF_ENABLE) != 0) {
-		temp &= ~PIPEACONF_ENABLE;
-		temp |= PIPECONF_PLANE_OFF | PIPECONF_CURSOR_OFF;
-		REG_WRITE(map->conf, temp);
-		REG_READ(map->conf);
-
-		/* Wait for for the pipe disable to take effect. */
-		mdfldWaitForPipeDisable(dev, pipe);
-	}
-
-	temp = REG_READ(map->dpll);
-	if (temp & DPLL_VCO_ENABLE) {
-		if ((pipe != 1 &&
-			!((REG_READ(PIPEACONF) | REG_READ(PIPECCONF))
-				& PIPEACONF_ENABLE)) || pipe == 1) {
-			temp &= ~(DPLL_VCO_ENABLE);
-			REG_WRITE(map->dpll, temp);
-			REG_READ(map->dpll);
-			/* Wait for the clocks to turn off. */
-			/* FIXME_MDFLD PO may need more delay */
-			udelay(500);
-
-			if (!(temp & MDFLD_PWR_GATE_EN)) {
-				/* gating power of DPLL */
-				REG_WRITE(map->dpll, temp | MDFLD_PWR_GATE_EN);
-				/* FIXME_MDFLD PO - change 500 to 1 after PO */
-				udelay(5000);
-			}
-		}
-	}
-
-}
-
-/*
- * Sets the power management mode of the pipe and plane.
- *
- * This code should probably grow support for turning the cursor off and back
- * on appropriately at the same time as we're turning the pipe off/on.
- */
-static void mdfld_crtc_dpms(struct drm_crtc *crtc, int mode)
-{
-	struct drm_device *dev = crtc->dev;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
-	int pipe = gma_crtc->pipe;
-	const struct psb_offset *map = &dev_priv->regmap[pipe];
-	u32 pipeconf = dev_priv->pipeconf[pipe];
-	u32 temp;
-	int timeout = 0;
-
-	dev_dbg(dev->dev, "mode = %d, pipe = %d\n", mode, pipe);
-
-	/* Note: Old code uses pipe a stat for pipe b but that appears
-	   to be a bug */
-
-	if (!gma_power_begin(dev, true))
-		return;
-
-	/* XXX: When our outputs are all unaware of DPMS modes other than off
-	 * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
-	 */
-	switch (mode) {
-	case DRM_MODE_DPMS_ON:
-	case DRM_MODE_DPMS_STANDBY:
-	case DRM_MODE_DPMS_SUSPEND:
-		/* Enable the DPLL */
-		temp = REG_READ(map->dpll);
-
-		if ((temp & DPLL_VCO_ENABLE) == 0) {
-			/* When ungating power of DPLL, needs to wait 0.5us
-			   before enable the VCO */
-			if (temp & MDFLD_PWR_GATE_EN) {
-				temp &= ~MDFLD_PWR_GATE_EN;
-				REG_WRITE(map->dpll, temp);
-				/* FIXME_MDFLD PO - change 500 to 1 after PO */
-				udelay(500);
-			}
-
-			REG_WRITE(map->dpll, temp);
-			REG_READ(map->dpll);
-			/* FIXME_MDFLD PO - change 500 to 1 after PO */
-			udelay(500);
-
-			REG_WRITE(map->dpll, temp | DPLL_VCO_ENABLE);
-			REG_READ(map->dpll);
-
-			/**
-			 * wait for DSI PLL to lock
-			 * NOTE: only need to poll status of pipe 0 and pipe 1,
-			 * since both MIPI pipes share the same PLL.
-			 */
-			while ((pipe != 2) && (timeout < 20000) &&
-			  !(REG_READ(map->conf) & PIPECONF_DSIPLL_LOCK)) {
-				udelay(150);
-				timeout++;
-			}
-		}
-
-		/* Enable the plane */
-		temp = REG_READ(map->cntr);
-		if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
-			REG_WRITE(map->cntr,
-				temp | DISPLAY_PLANE_ENABLE);
-			/* Flush the plane changes */
-			REG_WRITE(map->base, REG_READ(map->base));
-		}
-
-		/* Enable the pipe */
-		temp = REG_READ(map->conf);
-		if ((temp & PIPEACONF_ENABLE) == 0) {
-			REG_WRITE(map->conf, pipeconf);
-
-			/* Wait for for the pipe enable to take effect. */
-			mdfldWaitForPipeEnable(dev, pipe);
-		}
-
-		/*workaround for sighting 3741701 Random X blank display*/
-		/*perform w/a in video mode only on pipe A or C*/
-		if (pipe == 0 || pipe == 2) {
-			REG_WRITE(map->status, REG_READ(map->status));
-			msleep(100);
-			if (PIPE_VBLANK_STATUS & REG_READ(map->status))
-				dev_dbg(dev->dev, "OK");
-			else {
-				dev_dbg(dev->dev, "STUCK!!!!");
-				/*shutdown controller*/
-				temp = REG_READ(map->cntr);
-				REG_WRITE(map->cntr,
-						temp & ~DISPLAY_PLANE_ENABLE);
-				REG_WRITE(map->base, REG_READ(map->base));
-				/*mdfld_dsi_dpi_shut_down(dev, pipe);*/
-				REG_WRITE(0xb048, 1);
-				msleep(100);
-				temp = REG_READ(map->conf);
-				temp &= ~PIPEACONF_ENABLE;
-				REG_WRITE(map->conf, temp);
-				msleep(100); /*wait for pipe disable*/
-				REG_WRITE(MIPI_DEVICE_READY_REG(pipe), 0);
-				msleep(100);
-				REG_WRITE(0xb004, REG_READ(0xb004));
-				/* try to bring the controller back up again*/
-				REG_WRITE(MIPI_DEVICE_READY_REG(pipe), 1);
-				temp = REG_READ(map->cntr);
-				REG_WRITE(map->cntr,
-						temp | DISPLAY_PLANE_ENABLE);
-				REG_WRITE(map->base, REG_READ(map->base));
-				/*mdfld_dsi_dpi_turn_on(dev, pipe);*/
-				REG_WRITE(0xb048, 2);
-				msleep(100);
-				temp = REG_READ(map->conf);
-				temp |= PIPEACONF_ENABLE;
-				REG_WRITE(map->conf, temp);
-			}
-		}
-
-		gma_crtc_load_lut(crtc);
-
-		/* Give the overlay scaler a chance to enable
-		   if it's on this pipe */
-		/* psb_intel_crtc_dpms_video(crtc, true); TODO */
-
-		break;
-	case DRM_MODE_DPMS_OFF:
-		/* Give the overlay scaler a chance to disable
-		 * if it's on this pipe */
-		/* psb_intel_crtc_dpms_video(crtc, FALSE); TODO */
-		if (pipe != 1)
-			mdfld_dsi_gen_fifo_ready(dev,
-				MIPI_GEN_FIFO_STAT_REG(pipe),
-				HS_CTRL_FIFO_EMPTY | HS_DATA_FIFO_EMPTY);
-
-		/* Disable the VGA plane that we never use */
-		REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
-
-		/* Disable display plane */
-		temp = REG_READ(map->cntr);
-		if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
-			REG_WRITE(map->cntr,
-				  temp & ~DISPLAY_PLANE_ENABLE);
-			/* Flush the plane changes */
-			REG_WRITE(map->base, REG_READ(map->base));
-			REG_READ(map->base);
-		}
-
-		/* Next, disable display pipes */
-		temp = REG_READ(map->conf);
-		if ((temp & PIPEACONF_ENABLE) != 0) {
-			temp &= ~PIPEACONF_ENABLE;
-			temp |= PIPECONF_PLANE_OFF | PIPECONF_CURSOR_OFF;
-			REG_WRITE(map->conf, temp);
-			REG_READ(map->conf);
-
-			/* Wait for for the pipe disable to take effect. */
-			mdfldWaitForPipeDisable(dev, pipe);
-		}
-
-		temp = REG_READ(map->dpll);
-		if (temp & DPLL_VCO_ENABLE) {
-			if ((pipe != 1 && !((REG_READ(PIPEACONF)
-				| REG_READ(PIPECCONF)) & PIPEACONF_ENABLE))
-					|| pipe == 1) {
-				temp &= ~(DPLL_VCO_ENABLE);
-				REG_WRITE(map->dpll, temp);
-				REG_READ(map->dpll);
-				/* Wait for the clocks to turn off. */
-				/* FIXME_MDFLD PO may need more delay */
-				udelay(500);
-			}
-		}
-		break;
-	}
-	gma_power_end(dev);
-}
-
-
-#define MDFLD_LIMT_DPLL_19	    0
-#define MDFLD_LIMT_DPLL_25	    1
-#define MDFLD_LIMT_DPLL_83	    2
-#define MDFLD_LIMT_DPLL_100	    3
-#define MDFLD_LIMT_DSIPLL_19	    4
-#define MDFLD_LIMT_DSIPLL_25	    5
-#define MDFLD_LIMT_DSIPLL_83	    6
-#define MDFLD_LIMT_DSIPLL_100	    7
-
-#define MDFLD_DOT_MIN		  19750
-#define MDFLD_DOT_MAX		  120000
-#define MDFLD_DPLL_M_MIN_19	    113
-#define MDFLD_DPLL_M_MAX_19	    155
-#define MDFLD_DPLL_P1_MIN_19	    2
-#define MDFLD_DPLL_P1_MAX_19	    10
-#define MDFLD_DPLL_M_MIN_25	    101
-#define MDFLD_DPLL_M_MAX_25	    130
-#define MDFLD_DPLL_P1_MIN_25	    2
-#define MDFLD_DPLL_P1_MAX_25	    10
-#define MDFLD_DPLL_M_MIN_83	    64
-#define MDFLD_DPLL_M_MAX_83	    64
-#define MDFLD_DPLL_P1_MIN_83	    2
-#define MDFLD_DPLL_P1_MAX_83	    2
-#define MDFLD_DPLL_M_MIN_100	    64
-#define MDFLD_DPLL_M_MAX_100	    64
-#define MDFLD_DPLL_P1_MIN_100	    2
-#define MDFLD_DPLL_P1_MAX_100	    2
-#define MDFLD_DSIPLL_M_MIN_19	    131
-#define MDFLD_DSIPLL_M_MAX_19	    175
-#define MDFLD_DSIPLL_P1_MIN_19	    3
-#define MDFLD_DSIPLL_P1_MAX_19	    8
-#define MDFLD_DSIPLL_M_MIN_25	    97
-#define MDFLD_DSIPLL_M_MAX_25	    140
-#define MDFLD_DSIPLL_P1_MIN_25	    3
-#define MDFLD_DSIPLL_P1_MAX_25	    9
-#define MDFLD_DSIPLL_M_MIN_83	    33
-#define MDFLD_DSIPLL_M_MAX_83	    92
-#define MDFLD_DSIPLL_P1_MIN_83	    2
-#define MDFLD_DSIPLL_P1_MAX_83	    3
-#define MDFLD_DSIPLL_M_MIN_100	    97
-#define MDFLD_DSIPLL_M_MAX_100	    140
-#define MDFLD_DSIPLL_P1_MIN_100	    3
-#define MDFLD_DSIPLL_P1_MAX_100	    9
-
-static const struct mrst_limit_t mdfld_limits[] = {
-	{			/* MDFLD_LIMT_DPLL_19 */
-	 .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX},
-	 .m = {.min = MDFLD_DPLL_M_MIN_19, .max = MDFLD_DPLL_M_MAX_19},
-	 .p1 = {.min = MDFLD_DPLL_P1_MIN_19, .max = MDFLD_DPLL_P1_MAX_19},
-	 },
-	{			/* MDFLD_LIMT_DPLL_25 */
-	 .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX},
-	 .m = {.min = MDFLD_DPLL_M_MIN_25, .max = MDFLD_DPLL_M_MAX_25},
-	 .p1 = {.min = MDFLD_DPLL_P1_MIN_25, .max = MDFLD_DPLL_P1_MAX_25},
-	 },
-	{			/* MDFLD_LIMT_DPLL_83 */
-	 .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX},
-	 .m = {.min = MDFLD_DPLL_M_MIN_83, .max = MDFLD_DPLL_M_MAX_83},
-	 .p1 = {.min = MDFLD_DPLL_P1_MIN_83, .max = MDFLD_DPLL_P1_MAX_83},
-	 },
-	{			/* MDFLD_LIMT_DPLL_100 */
-	 .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX},
-	 .m = {.min = MDFLD_DPLL_M_MIN_100, .max = MDFLD_DPLL_M_MAX_100},
-	 .p1 = {.min = MDFLD_DPLL_P1_MIN_100, .max = MDFLD_DPLL_P1_MAX_100},
-	 },
-	{			/* MDFLD_LIMT_DSIPLL_19 */
-	 .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX},
-	 .m = {.min = MDFLD_DSIPLL_M_MIN_19, .max = MDFLD_DSIPLL_M_MAX_19},
-	 .p1 = {.min = MDFLD_DSIPLL_P1_MIN_19, .max = MDFLD_DSIPLL_P1_MAX_19},
-	 },
-	{			/* MDFLD_LIMT_DSIPLL_25 */
-	 .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX},
-	 .m = {.min = MDFLD_DSIPLL_M_MIN_25, .max = MDFLD_DSIPLL_M_MAX_25},
-	 .p1 = {.min = MDFLD_DSIPLL_P1_MIN_25, .max = MDFLD_DSIPLL_P1_MAX_25},
-	 },
-	{			/* MDFLD_LIMT_DSIPLL_83 */
-	 .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX},
-	 .m = {.min = MDFLD_DSIPLL_M_MIN_83, .max = MDFLD_DSIPLL_M_MAX_83},
-	 .p1 = {.min = MDFLD_DSIPLL_P1_MIN_83, .max = MDFLD_DSIPLL_P1_MAX_83},
-	 },
-	{			/* MDFLD_LIMT_DSIPLL_100 */
-	 .dot = {.min = MDFLD_DOT_MIN, .max = MDFLD_DOT_MAX},
-	 .m = {.min = MDFLD_DSIPLL_M_MIN_100, .max = MDFLD_DSIPLL_M_MAX_100},
-	 .p1 = {.min = MDFLD_DSIPLL_P1_MIN_100, .max = MDFLD_DSIPLL_P1_MAX_100},
-	 },
-};
-
-#define MDFLD_M_MIN	    21
-#define MDFLD_M_MAX	    180
-static const u32 mdfld_m_converts[] = {
-/* M configuration table from 9-bit LFSR table */
-	224, 368, 440, 220, 366, 439, 219, 365, 182, 347, /* 21 - 30 */
-	173, 342, 171, 85, 298, 149, 74, 37, 18, 265,   /* 31 - 40 */
-	388, 194, 353, 432, 216, 108, 310, 155, 333, 166, /* 41 - 50 */
-	83, 41, 276, 138, 325, 162, 337, 168, 340, 170, /* 51 - 60 */
-	341, 426, 469, 234, 373, 442, 221, 110, 311, 411, /* 61 - 70 */
-	461, 486, 243, 377, 188, 350, 175, 343, 427, 213, /* 71 - 80 */
-	106, 53, 282, 397, 354, 227, 113, 56, 284, 142, /* 81 - 90 */
-	71, 35, 273, 136, 324, 418, 465, 488, 500, 506, /* 91 - 100 */
-	253, 126, 63, 287, 399, 455, 483, 241, 376, 444, /* 101 - 110 */
-	478, 495, 503, 251, 381, 446, 479, 239, 375, 443, /* 111 - 120 */
-	477, 238, 119, 315, 157, 78, 295, 147, 329, 420, /* 121 - 130 */
-	210, 105, 308, 154, 77, 38, 275, 137, 68, 290, /* 131 - 140 */
-	145, 328, 164, 82, 297, 404, 458, 485, 498, 249, /* 141 - 150 */
-	380, 190, 351, 431, 471, 235, 117, 314, 413, 206, /* 151 - 160 */
-	103, 51, 25, 12, 262, 387, 193, 96, 48, 280, /* 161 - 170 */
-	396, 198, 99, 305, 152, 76, 294, 403, 457, 228, /* 171 - 180 */
-};
-
-static const struct mrst_limit_t *mdfld_limit(struct drm_crtc *crtc)
-{
-	const struct mrst_limit_t *limit = NULL;
-	struct drm_device *dev = crtc->dev;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-
-	if (gma_pipe_has_type(crtc, INTEL_OUTPUT_MIPI)
-	    || gma_pipe_has_type(crtc, INTEL_OUTPUT_MIPI2)) {
-		if ((ksel == KSEL_CRYSTAL_19) || (ksel == KSEL_BYPASS_19))
-			limit = &mdfld_limits[MDFLD_LIMT_DSIPLL_19];
-		else if (ksel == KSEL_BYPASS_25)
-			limit = &mdfld_limits[MDFLD_LIMT_DSIPLL_25];
-		else if ((ksel == KSEL_BYPASS_83_100) &&
-				(dev_priv->core_freq == 166))
-			limit = &mdfld_limits[MDFLD_LIMT_DSIPLL_83];
-		else if ((ksel == KSEL_BYPASS_83_100) &&
-			 (dev_priv->core_freq == 100 ||
-				dev_priv->core_freq == 200))
-			limit = &mdfld_limits[MDFLD_LIMT_DSIPLL_100];
-	} else if (gma_pipe_has_type(crtc, INTEL_OUTPUT_HDMI)) {
-		if ((ksel == KSEL_CRYSTAL_19) || (ksel == KSEL_BYPASS_19))
-			limit = &mdfld_limits[MDFLD_LIMT_DPLL_19];
-		else if (ksel == KSEL_BYPASS_25)
-			limit = &mdfld_limits[MDFLD_LIMT_DPLL_25];
-		else if ((ksel == KSEL_BYPASS_83_100) &&
-				(dev_priv->core_freq == 166))
-			limit = &mdfld_limits[MDFLD_LIMT_DPLL_83];
-		else if ((ksel == KSEL_BYPASS_83_100) &&
-				 (dev_priv->core_freq == 100 ||
-				 dev_priv->core_freq == 200))
-			limit = &mdfld_limits[MDFLD_LIMT_DPLL_100];
-	} else {
-		limit = NULL;
-		dev_dbg(dev->dev, "mdfld_limit Wrong display type.\n");
-	}
-
-	return limit;
-}
-
-/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */
-static void mdfld_clock(int refclk, struct mrst_clock_t *clock)
-{
-	clock->dot = (refclk * clock->m) / clock->p1;
-}
-
-/*
- * Returns a set of divisors for the desired target clock with the given refclk,
- * or FALSE.  Divisor values are the actual divisors for
- */
-static bool
-mdfldFindBestPLL(struct drm_crtc *crtc, int target, int refclk,
-		struct mrst_clock_t *best_clock)
-{
-	struct mrst_clock_t clock;
-	const struct mrst_limit_t *limit = mdfld_limit(crtc);
-	int err = target;
-
-	memset(best_clock, 0, sizeof(*best_clock));
-
-	for (clock.m = limit->m.min; clock.m <= limit->m.max; clock.m++) {
-		for (clock.p1 = limit->p1.min; clock.p1 <= limit->p1.max;
-		     clock.p1++) {
-			int this_err;
-
-			mdfld_clock(refclk, &clock);
-
-			this_err = abs(clock.dot - target);
-			if (this_err < err) {
-				*best_clock = clock;
-				err = this_err;
-			}
-		}
-	}
-	return err != target;
-}
-
-static int mdfld_crtc_mode_set(struct drm_crtc *crtc,
-			      struct drm_display_mode *mode,
-			      struct drm_display_mode *adjusted_mode,
-			      int x, int y,
-			      struct drm_framebuffer *old_fb)
-{
-	struct drm_device *dev = crtc->dev;
-	struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	int pipe = gma_crtc->pipe;
-	const struct psb_offset *map = &dev_priv->regmap[pipe];
-	int refclk = 0;
-	int clk_n = 0, clk_p2 = 0, clk_byte = 1, clk = 0, m_conv = 0,
-								clk_tmp = 0;
-	struct mrst_clock_t clock;
-	bool ok;
-	u32 dpll = 0, fp = 0;
-	bool is_mipi = false, is_mipi2 = false, is_hdmi = false;
-	struct drm_mode_config *mode_config = &dev->mode_config;
-	struct gma_encoder *gma_encoder = NULL;
-	uint64_t scalingType = DRM_MODE_SCALE_FULLSCREEN;
-	struct drm_encoder *encoder;
-	struct drm_connector *connector;
-	int timeout = 0;
-	int ret;
-
-	dev_dbg(dev->dev, "pipe = 0x%x\n", pipe);
-
-	ret = check_fb(crtc->primary->fb);
-	if (ret)
-		return ret;
-
-	dev_dbg(dev->dev, "adjusted_hdisplay = %d\n",
-		 adjusted_mode->hdisplay);
-	dev_dbg(dev->dev, "adjusted_vdisplay = %d\n",
-		 adjusted_mode->vdisplay);
-	dev_dbg(dev->dev, "adjusted_hsync_start = %d\n",
-		 adjusted_mode->hsync_start);
-	dev_dbg(dev->dev, "adjusted_hsync_end = %d\n",
-		 adjusted_mode->hsync_end);
-	dev_dbg(dev->dev, "adjusted_htotal = %d\n",
-		 adjusted_mode->htotal);
-	dev_dbg(dev->dev, "adjusted_vsync_start = %d\n",
-		 adjusted_mode->vsync_start);
-	dev_dbg(dev->dev, "adjusted_vsync_end = %d\n",
-		 adjusted_mode->vsync_end);
-	dev_dbg(dev->dev, "adjusted_vtotal = %d\n",
-		 adjusted_mode->vtotal);
-	dev_dbg(dev->dev, "adjusted_clock = %d\n",
-		 adjusted_mode->clock);
-	dev_dbg(dev->dev, "hdisplay = %d\n",
-		 mode->hdisplay);
-	dev_dbg(dev->dev, "vdisplay = %d\n",
-		 mode->vdisplay);
-
-	if (!gma_power_begin(dev, true))
-		return 0;
-
-	memcpy(&gma_crtc->saved_mode, mode,
-					sizeof(struct drm_display_mode));
-	memcpy(&gma_crtc->saved_adjusted_mode, adjusted_mode,
-					sizeof(struct drm_display_mode));
-
-	list_for_each_entry(connector, &mode_config->connector_list, head) {
-		encoder = connector->encoder;
-		if (!encoder)
-			continue;
-
-		if (encoder->crtc != crtc)
-			continue;
-
-		gma_encoder = gma_attached_encoder(connector);
-
-		switch (gma_encoder->type) {
-		case INTEL_OUTPUT_MIPI:
-			is_mipi = true;
-			break;
-		case INTEL_OUTPUT_MIPI2:
-			is_mipi2 = true;
-			break;
-		case INTEL_OUTPUT_HDMI:
-			is_hdmi = true;
-			break;
-		}
-	}
-
-	/* Disable the VGA plane that we never use */
-	REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
-
-	/* Disable the panel fitter if it was on our pipe */
-	if (psb_intel_panel_fitter_pipe(dev) == pipe)
-		REG_WRITE(PFIT_CONTROL, 0);
-
-	/* pipesrc and dspsize control the size that is scaled from,
-	 * which should always be the user's requested size.
-	 */
-	if (pipe == 1) {
-		/* FIXME: To make HDMI display with 864x480 (TPO), 480x864
-		 * (PYR) or 480x854 (TMD), set the sprite width/height and
-		 * souce image size registers with the adjusted mode for
-		 * pipe B.
-		 */
-
-		/*
-		 * The defined sprite rectangle must always be completely
-		 * contained within the displayable area of the screen image
-		 * (frame buffer).
-		 */
-		REG_WRITE(map->size, ((min(mode->crtc_vdisplay, adjusted_mode->crtc_vdisplay) - 1) << 16)
-				| (min(mode->crtc_hdisplay, adjusted_mode->crtc_hdisplay) - 1));
-		/* Set the CRTC with encoder mode. */
-		REG_WRITE(map->src, ((mode->crtc_hdisplay - 1) << 16)
-				 | (mode->crtc_vdisplay - 1));
-	} else {
-		REG_WRITE(map->size,
-				((mode->crtc_vdisplay - 1) << 16) |
-						(mode->crtc_hdisplay - 1));
-		REG_WRITE(map->src,
-				((mode->crtc_hdisplay - 1) << 16) |
-						(mode->crtc_vdisplay - 1));
-	}
-
-	REG_WRITE(map->pos, 0);
-
-	if (gma_encoder)
-		drm_object_property_get_value(&connector->base,
-			dev->mode_config.scaling_mode_property, &scalingType);
-
-	if (scalingType == DRM_MODE_SCALE_NO_SCALE) {
-		/* Medfield doesn't have register support for centering so we
-		 * need to mess with the h/vblank and h/vsync start and ends
-		 * to get centering
-		 */
-		int offsetX = 0, offsetY = 0;
-
-		offsetX = (adjusted_mode->crtc_hdisplay -
-					mode->crtc_hdisplay) / 2;
-		offsetY = (adjusted_mode->crtc_vdisplay -
-					mode->crtc_vdisplay) / 2;
-
-		REG_WRITE(map->htotal, (mode->crtc_hdisplay - 1) |
-			((adjusted_mode->crtc_htotal - 1) << 16));
-		REG_WRITE(map->vtotal, (mode->crtc_vdisplay - 1) |
-			((adjusted_mode->crtc_vtotal - 1) << 16));
-		REG_WRITE(map->hblank, (adjusted_mode->crtc_hblank_start -
-								offsetX - 1) |
-			((adjusted_mode->crtc_hblank_end - offsetX - 1) << 16));
-		REG_WRITE(map->hsync, (adjusted_mode->crtc_hsync_start -
-								offsetX - 1) |
-			((adjusted_mode->crtc_hsync_end - offsetX - 1) << 16));
-		REG_WRITE(map->vblank, (adjusted_mode->crtc_vblank_start -
-								offsetY - 1) |
-			((adjusted_mode->crtc_vblank_end - offsetY - 1) << 16));
-		REG_WRITE(map->vsync, (adjusted_mode->crtc_vsync_start -
-								offsetY - 1) |
-			((adjusted_mode->crtc_vsync_end - offsetY - 1) << 16));
-	} else {
-		REG_WRITE(map->htotal, (adjusted_mode->crtc_hdisplay - 1) |
-			((adjusted_mode->crtc_htotal - 1) << 16));
-		REG_WRITE(map->vtotal, (adjusted_mode->crtc_vdisplay - 1) |
-			((adjusted_mode->crtc_vtotal - 1) << 16));
-		REG_WRITE(map->hblank, (adjusted_mode->crtc_hblank_start - 1) |
-			((adjusted_mode->crtc_hblank_end - 1) << 16));
-		REG_WRITE(map->hsync, (adjusted_mode->crtc_hsync_start - 1) |
-			((adjusted_mode->crtc_hsync_end - 1) << 16));
-		REG_WRITE(map->vblank, (adjusted_mode->crtc_vblank_start - 1) |
-			((adjusted_mode->crtc_vblank_end - 1) << 16));
-		REG_WRITE(map->vsync, (adjusted_mode->crtc_vsync_start - 1) |
-			((adjusted_mode->crtc_vsync_end - 1) << 16));
-	}
-
-	/* Flush the plane changes */
-	{
-		const struct drm_crtc_helper_funcs *crtc_funcs =
-		    crtc->helper_private;
-		crtc_funcs->mode_set_base(crtc, x, y, old_fb);
-	}
-
-	/* setup pipeconf */
-	dev_priv->pipeconf[pipe] = PIPEACONF_ENABLE; /* FIXME_JLIU7 REG_READ(pipeconf_reg); */
-
-	/* Set up the display plane register */
-	dev_priv->dspcntr[pipe] = REG_READ(map->cntr);
-	dev_priv->dspcntr[pipe] |= pipe << DISPPLANE_SEL_PIPE_POS;
-	dev_priv->dspcntr[pipe] |= DISPLAY_PLANE_ENABLE;
-
-	if (is_mipi2)
-		goto mrst_crtc_mode_set_exit;
-	clk = adjusted_mode->clock;
-
-	if (is_hdmi) {
-		if ((ksel == KSEL_CRYSTAL_19) || (ksel == KSEL_BYPASS_19)) {
-			refclk = 19200;
-
-			if (is_mipi || is_mipi2)
-				clk_n = 1, clk_p2 = 8;
-			else if (is_hdmi)
-				clk_n = 1, clk_p2 = 10;
-		} else if (ksel == KSEL_BYPASS_25) {
-			refclk = 25000;
-
-			if (is_mipi || is_mipi2)
-				clk_n = 1, clk_p2 = 8;
-			else if (is_hdmi)
-				clk_n = 1, clk_p2 = 10;
-		} else if ((ksel == KSEL_BYPASS_83_100) &&
-					dev_priv->core_freq == 166) {
-			refclk = 83000;
-
-			if (is_mipi || is_mipi2)
-				clk_n = 4, clk_p2 = 8;
-			else if (is_hdmi)
-				clk_n = 4, clk_p2 = 10;
-		} else if ((ksel == KSEL_BYPASS_83_100) &&
-					(dev_priv->core_freq == 100 ||
-					dev_priv->core_freq == 200)) {
-			refclk = 100000;
-			if (is_mipi || is_mipi2)
-				clk_n = 4, clk_p2 = 8;
-			else if (is_hdmi)
-				clk_n = 4, clk_p2 = 10;
-		}
-
-		if (is_mipi)
-			clk_byte = dev_priv->bpp / 8;
-		else if (is_mipi2)
-			clk_byte = dev_priv->bpp2 / 8;
-
-		clk_tmp = clk * clk_n * clk_p2 * clk_byte;
-
-		dev_dbg(dev->dev, "clk = %d, clk_n = %d, clk_p2 = %d.\n",
-					clk, clk_n, clk_p2);
-		dev_dbg(dev->dev, "adjusted_mode->clock = %d, clk_tmp = %d.\n",
-					adjusted_mode->clock, clk_tmp);
-
-		ok = mdfldFindBestPLL(crtc, clk_tmp, refclk, &clock);
-
-		if (!ok) {
-			DRM_ERROR
-			    ("mdfldFindBestPLL fail in mdfld_crtc_mode_set.\n");
-		} else {
-			m_conv = mdfld_m_converts[(clock.m - MDFLD_M_MIN)];
-
-			dev_dbg(dev->dev, "dot clock = %d,"
-				 "m = %d, p1 = %d, m_conv = %d.\n",
-					clock.dot, clock.m,
-					clock.p1, m_conv);
-		}
-
-		dpll = REG_READ(map->dpll);
-
-		if (dpll & DPLL_VCO_ENABLE) {
-			dpll &= ~DPLL_VCO_ENABLE;
-			REG_WRITE(map->dpll, dpll);
-			REG_READ(map->dpll);
-
-			/* FIXME jliu7 check the DPLL lock bit PIPEACONF[29] */
-			/* FIXME_MDFLD PO - change 500 to 1 after PO */
-			udelay(500);
-
-			/* reset M1, N1 & P1 */
-			REG_WRITE(map->fp0, 0);
-			dpll &= ~MDFLD_P1_MASK;
-			REG_WRITE(map->dpll, dpll);
-			/* FIXME_MDFLD PO - change 500 to 1 after PO */
-			udelay(500);
-		}
-
-		/* When ungating power of DPLL, needs to wait 0.5us before
-		 * enable the VCO */
-		if (dpll & MDFLD_PWR_GATE_EN) {
-			dpll &= ~MDFLD_PWR_GATE_EN;
-			REG_WRITE(map->dpll, dpll);
-			/* FIXME_MDFLD PO - change 500 to 1 after PO */
-			udelay(500);
-		}
-		dpll = 0;
-
-		if (is_hdmi)
-			dpll |= MDFLD_VCO_SEL;
-
-		fp = (clk_n / 2) << 16;
-		fp |= m_conv;
-
-		/* compute bitmask from p1 value */
-		dpll |= (1 << (clock.p1 - 2)) << 17;
-
-	} else {
-		dpll = 0x00800000;
-		fp = 0x000000c1;
-	}
-
-	REG_WRITE(map->fp0, fp);
-	REG_WRITE(map->dpll, dpll);
-	/* FIXME_MDFLD PO - change 500 to 1 after PO */
-	udelay(500);
-
-	dpll |= DPLL_VCO_ENABLE;
-	REG_WRITE(map->dpll, dpll);
-	REG_READ(map->dpll);
-
-	/* wait for DSI PLL to lock */
-	while (timeout < 20000 &&
-			!(REG_READ(map->conf) & PIPECONF_DSIPLL_LOCK)) {
-		udelay(150);
-		timeout++;
-	}
-
-	if (is_mipi)
-		goto mrst_crtc_mode_set_exit;
-
-	dev_dbg(dev->dev, "is_mipi = 0x%x\n", is_mipi);
-
-	REG_WRITE(map->conf, dev_priv->pipeconf[pipe]);
-	REG_READ(map->conf);
-
-	/* Wait for for the pipe enable to take effect. */
-	REG_WRITE(map->cntr, dev_priv->dspcntr[pipe]);
-	gma_wait_for_vblank(dev);
-
-mrst_crtc_mode_set_exit:
-
-	gma_power_end(dev);
-
-	return 0;
-}
-
-const struct drm_crtc_helper_funcs mdfld_helper_funcs = {
-	.dpms = mdfld_crtc_dpms,
-	.mode_set = mdfld_crtc_mode_set,
-	.mode_set_base = mdfld__intel_pipe_set_base,
-	.prepare = gma_crtc_prepare,
-	.commit = gma_crtc_commit,
-};

drivers/gpu/drm/gma500/mdfld_output.c

···
-/*
- * Copyright (c)  2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicensen
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Thomas Eaton <[e-mail]>
- * Scott Rowe <[e-mail]>
-*/
-
-#include "mdfld_output.h"
-#include "mdfld_dsi_dpi.h"
-#include "mdfld_dsi_output.h"
-
-#include "tc35876x-dsi-lvds.h"
-
-int mdfld_get_panel_type(struct drm_device *dev, int pipe)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	return dev_priv->mdfld_panel_id;
-}
-
-static void mdfld_init_panel(struct drm_device *dev, int mipi_pipe,
-								int p_type)
-{
-	switch (p_type) {
-	case TPO_VID:
-		mdfld_dsi_output_init(dev, mipi_pipe, &mdfld_tpo_vid_funcs);
-		break;
-	case TC35876X:
-		tc35876x_init(dev);
-		mdfld_dsi_output_init(dev, mipi_pipe, &mdfld_tc35876x_funcs);
-		break;
-	case TMD_VID:
-		mdfld_dsi_output_init(dev, mipi_pipe, &mdfld_tmd_vid_funcs);
-		break;
-	case HDMI:
-/*		if (dev_priv->mdfld_hdmi_present)
-			mdfld_hdmi_init(dev, &dev_priv->mode_dev); */
-		break;
-	}
-}
-
-
-int mdfld_output_init(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-
-	/* FIXME: hardcoded for now */
-	dev_priv->mdfld_panel_id = TC35876X;
-	/* MIPI panel 1 */
-	mdfld_init_panel(dev, 0, dev_priv->mdfld_panel_id);
-	/* HDMI panel */
-	mdfld_init_panel(dev, 1, HDMI);
-	return 0;
-}
-

drivers/gpu/drm/gma500/mdfld_output.h

···
-/*
- * Copyright (c)  2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicensen
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Thomas Eaton <[e-mail]>
- * Scott Rowe <[e-mail]>
-*/
-
-#ifndef MDFLD_OUTPUT_H
-#define MDFLD_OUTPUT_H
-
-#include "psb_drv.h"
-
-#define TPO_PANEL_WIDTH		84
-#define TPO_PANEL_HEIGHT	46
-#define TMD_PANEL_WIDTH		39
-#define TMD_PANEL_HEIGHT	71
-
-struct mdfld_dsi_config;
-
-enum panel_type {
-	TPO_VID,
-	TMD_VID,
-	HDMI,
-	TC35876X,
-};
-
-struct panel_info {
-	u32 width_mm;
-	u32 height_mm;
-	/* Other info */
-};
-
-struct panel_funcs {
-	const struct drm_encoder_helper_funcs *encoder_helper_funcs;
-	struct drm_display_mode * (*get_config_mode)(struct drm_device *);
-	int (*get_panel_info)(struct drm_device *, int, struct panel_info *);
-	int (*reset)(struct drm_device *, int);
-	void (*drv_ic_init)(struct mdfld_dsi_config *dsi_config, int pipe);
-};
-
-int mdfld_output_init(struct drm_device *dev);
-
-struct backlight_device *mdfld_get_backlight_device(void);
-int mdfld_set_brightness(struct backlight_device *bd);
-
-int mdfld_get_panel_type(struct drm_device *dev, int pipe);
-
-extern const struct drm_crtc_helper_funcs mdfld_helper_funcs;
-
-extern const struct panel_funcs mdfld_tmd_vid_funcs;
-extern const struct panel_funcs mdfld_tpo_vid_funcs;
-
-extern void mdfld_disable_crtc(struct drm_device *dev, int pipe);
-extern void mdfldWaitForPipeEnable(struct drm_device *dev, int pipe);
-extern void mdfldWaitForPipeDisable(struct drm_device *dev, int pipe);
-#endif

drivers/gpu/drm/gma500/mdfld_tmd_vid.c

···
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Jim Liu <[e-mail]>
- * Jackie Li<[e-mail]>
- * Gideon Eaton <eaton.
- * Scott Rowe <[e-mail]>
- */
-
-#include <linux/delay.h>
-
-#include "mdfld_dsi_dpi.h"
-#include "mdfld_dsi_pkg_sender.h"
-
-static struct drm_display_mode *tmd_vid_get_config_mode(struct drm_device *dev)
-{
-	struct drm_display_mode *mode;
-	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct oaktrail_timing_info *ti = &dev_priv->gct_data.DTD;
-	bool use_gct = false; /*Disable GCT for now*/
-
-	mode = kzalloc(sizeof(*mode), GFP_KERNEL);
-	if (!mode)
-		return NULL;
-
-	if (use_gct) {
-		mode->hdisplay = (ti->hactive_hi << 8) | ti->hactive_lo;
-		mode->vdisplay = (ti->vactive_hi << 8) | ti->vactive_lo;
-		mode->hsync_start = mode->hdisplay + \
-				((ti->hsync_offset_hi << 8) | \
-				ti->hsync_offset_lo);
-		mode->hsync_end = mode->hsync_start + \
-				((ti->hsync_pulse_width_hi << 8) | \
-				ti->hsync_pulse_width_lo);
-		mode->htotal = mode->hdisplay + ((ti->hblank_hi << 8) | \
-								ti->hblank_lo);
-		mode->vsync_start = \
-			mode->vdisplay + ((ti->vsync_offset_hi << 8) | \
-						ti->vsync_offset_lo);
-		mode->vsync_end = \
-			mode->vsync_start + ((ti->vsync_pulse_width_hi << 8) | \
-						ti->vsync_pulse_width_lo);
-		mode->vtotal = mode->vdisplay + \
-				((ti->vblank_hi << 8) | ti->vblank_lo);
-		mode->clock = ti->pixel_clock * 10;
-
-		dev_dbg(dev->dev, "hdisplay is %d\n", mode->hdisplay);
-		dev_dbg(dev->dev, "vdisplay is %d\n", mode->vdisplay);
-		dev_dbg(dev->dev, "HSS is %d\n", mode->hsync_start);
-		dev_dbg(dev->dev, "HSE is %d\n", mode->hsync_end);
-		dev_dbg(dev->dev, "htotal is %d\n", mode->htotal);
-		dev_dbg(dev->dev, "VSS is %d\n", mode->vsync_start);
-		dev_dbg(dev->dev, "VSE is %d\n", mode->vsync_end);
-		dev_dbg(dev->dev, "vtotal is %d\n", mode->vtotal);
-		dev_dbg(dev->dev, "clock is %d\n", mode->clock);
-	} else {
-		mode->hdisplay = 480;
-		mode->vdisplay = 854;
-		mode->hsync_start = 487;
-		mode->hsync_end = 490;
-		mode->htotal = 499;
-		mode->vsync_start = 861;
-		mode->vsync_end = 865;
-		mode->vtotal = 873;
-		mode->clock = 33264;
-	}
-
-	drm_mode_set_name(mode);
-	drm_mode_set_crtcinfo(mode, 0);
-
-	mode->type |= DRM_MODE_TYPE_PREFERRED;
-
-	return mode;
-}
-
-static int tmd_vid_get_panel_info(struct drm_device *dev,
-				int pipe,
-				struct panel_info *pi)
-{
-	if (!dev || !pi)
-		return -EINVAL;
-
-	pi->width_mm = TMD_PANEL_WIDTH;
-	pi->height_mm = TMD_PANEL_HEIGHT;
-
-	return 0;
-}
-
-/* ************************************************************************* *\
- * FUNCTION: mdfld_init_TMD_MIPI
- *
- * DESCRIPTION:  This function is called only by mrst_dsi_mode_set and
- *               restore_display_registers.  since this function does not
- *               acquire the mutex, it is important that the calling function
- *               does!
-\* ************************************************************************* */
-
-/* FIXME: make the below data u8 instead of u32; note byte order! */
-static u32 tmd_cmd_mcap_off[] = {0x000000b2};
-static u32 tmd_cmd_enable_lane_switch[] = {0x000101ef};
-static u32 tmd_cmd_set_lane_num[] = {0x006360ef};
-static u32 tmd_cmd_pushing_clock0[] = {0x00cc2fef};
-static u32 tmd_cmd_pushing_clock1[] = {0x00dd6eef};
-static u32 tmd_cmd_set_mode[] = {0x000000b3};
-static u32 tmd_cmd_set_sync_pulse_mode[] = {0x000961ef};
-static u32 tmd_cmd_set_column[] = {0x0100002a, 0x000000df};
-static u32 tmd_cmd_set_page[] = {0x0300002b, 0x00000055};
-static u32 tmd_cmd_set_video_mode[] = {0x00000153};
-/*no auto_bl,need add in furture*/
-static u32 tmd_cmd_enable_backlight[] = {0x00005ab4};
-static u32 tmd_cmd_set_backlight_dimming[] = {0x00000ebd};
-
-static void mdfld_dsi_tmd_drv_ic_init(struct mdfld_dsi_config *dsi_config,
-				      int pipe)
-{
-	struct mdfld_dsi_pkg_sender *sender
-			= mdfld_dsi_get_pkg_sender(dsi_config);
-
-	DRM_INFO("Enter mdfld init TMD MIPI display.\n");
-
-	if (!sender) {
-		DRM_ERROR("Cannot get sender\n");
-		return;
-	}
-
-	if (dsi_config->dvr_ic_inited)
-		return;
-
-	msleep(3);
-
-	/* FIXME: make the below data u8 instead of u32; note byte order! */
-
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_mcap_off,
-				sizeof(tmd_cmd_mcap_off), false);
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_enable_lane_switch,
-				sizeof(tmd_cmd_enable_lane_switch), false);
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_set_lane_num,
-				sizeof(tmd_cmd_set_lane_num), false);
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_pushing_clock0,
-				sizeof(tmd_cmd_pushing_clock0), false);
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_pushing_clock1,
-				sizeof(tmd_cmd_pushing_clock1), false);
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_set_mode,
-				sizeof(tmd_cmd_set_mode), false);
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_set_sync_pulse_mode,
-				sizeof(tmd_cmd_set_sync_pulse_mode), false);
-	mdfld_dsi_send_mcs_long(sender, (u8 *) tmd_cmd_set_column,
-				sizeof(tmd_cmd_set_column), false);
-	mdfld_dsi_send_mcs_long(sender, (u8 *) tmd_cmd_set_page,
-				sizeof(tmd_cmd_set_page), false);
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_set_video_mode,
-				sizeof(tmd_cmd_set_video_mode), false);
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_enable_backlight,
-				sizeof(tmd_cmd_enable_backlight), false);
-	mdfld_dsi_send_gen_long(sender, (u8 *) tmd_cmd_set_backlight_dimming,
-				sizeof(tmd_cmd_set_backlight_dimming), false);
-
-	dsi_config->dvr_ic_inited = 1;
-}
-
-/*TPO DPI encoder helper funcs*/
-static const struct drm_encoder_helper_funcs
-				mdfld_tpo_dpi_encoder_helper_funcs = {
-	.dpms = mdfld_dsi_dpi_dpms,
-	.mode_fixup = mdfld_dsi_dpi_mode_fixup,
-	.prepare = mdfld_dsi_dpi_prepare,
-	.mode_set = mdfld_dsi_dpi_mode_set,
-	.commit = mdfld_dsi_dpi_commit,
-};
-
-const struct panel_funcs mdfld_tmd_vid_funcs = {
-	.encoder_helper_funcs = &mdfld_tpo_dpi_encoder_helper_funcs,
-	.get_config_mode = &tmd_vid_get_config_mode,
-	.get_panel_info = tmd_vid_get_panel_info,
-	.reset = mdfld_dsi_panel_reset,
-	.drv_ic_init = mdfld_dsi_tmd_drv_ic_init,
-};

drivers/gpu/drm/gma500/mdfld_tpo_vid.c

···
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * jim liu <[e-mail]>
- * Jackie Li<[e-mail]>
- */
-
-#include "mdfld_dsi_dpi.h"
-
-static struct drm_display_mode *tpo_vid_get_config_mode(struct drm_device *dev)
-{
-	struct drm_display_mode *mode;
-
-	mode = kzalloc(sizeof(*mode), GFP_KERNEL);
-	if (!mode)
-		return NULL;
-
-	mode->hdisplay = 864;
-	mode->vdisplay = 480;
-	mode->hsync_start = 873;
-	mode->hsync_end = 876;
-	mode->htotal = 887;
-	mode->vsync_start = 487;
-	mode->vsync_end = 490;
-	mode->vtotal = 499;
-	mode->clock = 33264;
-
-	drm_mode_set_name(mode);
-	drm_mode_set_crtcinfo(mode, 0);
-
-	mode->type |= DRM_MODE_TYPE_PREFERRED;
-
-	return mode;
-}
-
-static int tpo_vid_get_panel_info(struct drm_device *dev,
-				int pipe,
-				struct panel_info *pi)
-{
-	if (!dev || !pi)
-		return -EINVAL;
-
-	pi->width_mm = TPO_PANEL_WIDTH;
-	pi->height_mm = TPO_PANEL_HEIGHT;
-
-	return 0;
-}
-
-/*TPO DPI encoder helper funcs*/
-static const struct drm_encoder_helper_funcs
-				mdfld_tpo_dpi_encoder_helper_funcs = {
-	.dpms = mdfld_dsi_dpi_dpms,
-	.mode_fixup = mdfld_dsi_dpi_mode_fixup,
-	.prepare = mdfld_dsi_dpi_prepare,
-	.mode_set = mdfld_dsi_dpi_mode_set,
-	.commit = mdfld_dsi_dpi_commit,
-};
-
-const struct panel_funcs mdfld_tpo_vid_funcs = {
-	.encoder_helper_funcs = &mdfld_tpo_dpi_encoder_helper_funcs,
-	.get_config_mode = &tpo_vid_get_config_mode,
-	.get_panel_info = tpo_vid_get_panel_info,
-};

drivers/gpu/drm/gma500/psb_drv.c

···
  * PowerVR SGX535    - Poulsbo    - Intel GMA 500, Intel Atom Z5xx
  * PowerVR SGX535    - Moorestown - Intel GMA 600
  * PowerVR SGX535    - Oaktrail   - Intel GMA 600, Intel Atom Z6xx, E6xx
- * PowerVR SGX540    - Medfield   - Intel Atom Z2460
- * PowerVR SGX544MP2 - Medfield   -
  * PowerVR SGX545    - Cedartrail - Intel GMA 3600, Intel Atom D2500, N2600
  * PowerVR SGX545    - Cedartrail - Intel GMA 3650, Intel Atom D2550, D2700,
  *                                  N2800
···
 	{ 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
 	{ 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
 	{ 0x8086, 0x4108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops },
-#endif
-#if defined(CONFIG_DRM_MEDFIELD)
-	{ 0x8086, 0x0130, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
-	{ 0x8086, 0x0131, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
-	{ 0x8086, 0x0132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
-	{ 0x8086, 0x0133, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
-	{ 0x8086, 0x0134, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
-	{ 0x8086, 0x0135, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
-	{ 0x8086, 0x0136, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
-	{ 0x8086, 0x0137, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &mdfld_chip_ops },
 #endif
 #if defined(CONFIG_DRM_GMA3600)
 	{ 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops },

drivers/gpu/drm/gma500/psb_drv.h

···
 	CHIP_PSB_8108 = 0,		/* Poulsbo */
 	CHIP_PSB_8109 = 1,		/* Poulsbo */
 	CHIP_MRST_4100 = 2,		/* Moorestown/Oaktrail */
-	CHIP_MFLD_0130 = 3,		/* Medfield */
 };
 
 #define IS_PSB(drm) ((to_pci_dev((drm)->dev)->device & 0xfffe) == 0x8108)
 #define IS_MRST(drm) ((to_pci_dev((drm)->dev)->device & 0xfff0) == 0x4100)
-#define IS_MFLD(drm) ((to_pci_dev((drm)->dev)->device & 0xfff8) == 0x0130)
 #define IS_CDV(drm) ((to_pci_dev((drm)->dev)->device & 0xfff0) == 0x0be0)
 
 /* Hardware offsets */
 #define PSB_VDC_OFFSET		 0x00000000
 #define PSB_VDC_SIZE		 0x000080000
 #define MRST_MMIO_SIZE		 0x0000C0000
-#define MDFLD_MMIO_SIZE          0x000100000
 #define PSB_SGX_SIZE		 0x8000
 #define PSB_SGX_OFFSET		 0x00040000
 #define MRST_SGX_OFFSET		 0x00080000
···
 #define _PSB_DPST_PIPEA_FLAG      (1<<6)
 #define _PSB_PIPEA_EVENT_FLAG     (1<<6)
 #define _PSB_VSYNC_PIPEA_FLAG	  (1<<7)
-#define _MDFLD_MIPIA_FLAG	  (1<<16)
-#define _MDFLD_MIPIC_FLAG	  (1<<17)
 #define _PSB_IRQ_DISP_HOTSYNC	  (1<<17)
 #define _PSB_IRQ_SGX_FLAG	  (1<<18)
 #define _PSB_IRQ_MSVDX_FLAG	  (1<<19)
···
 #define _PSB_PIPE_EVENT_FLAG	(_PSB_VSYNC_PIPEA_FLAG | \
 				 _PSB_VSYNC_PIPEB_FLAG)
 
-/* This flag includes all the display IRQ bits excepts the vblank irqs. */
-#define _MDFLD_DISP_ALL_IRQ_FLAG (_MDFLD_PIPEC_EVENT_FLAG | \
-				  _MDFLD_PIPEB_EVENT_FLAG | \
-				  _PSB_PIPEA_EVENT_FLAG | \
-				  _PSB_VSYNC_PIPEA_FLAG | \
-				  _MDFLD_MIPIA_FLAG | \
-				  _MDFLD_MIPIC_FLAG)
 #define PSB_INT_IDENTITY_R	  0x20A4
 #define PSB_INT_MASK_R		  0x20A8
 #define PSB_INT_ENABLE_R	  0x20A0
···
 #define PSB_NUM_VBLANKS 2
 #define PSB_WATCHDOG_DELAY (HZ * 2)
 #define PSB_LID_DELAY (HZ / 10)
-
-#define MDFLD_PNW_B0 0x04
-#define MDFLD_PNW_C0 0x08
-
-#define MDFLD_DSR_2D_3D_0 	(1 << 0)
-#define MDFLD_DSR_2D_3D_2 	(1 << 1)
-#define MDFLD_DSR_CURSOR_0 	(1 << 2)
-#define MDFLD_DSR_CURSOR_2	(1 << 3)
-#define MDFLD_DSR_OVERLAY_0 	(1 << 4)
-#define MDFLD_DSR_OVERLAY_2 	(1 << 5)
-#define MDFLD_DSR_MIPI_CONTROL	(1 << 6)
-#define MDFLD_DSR_DAMAGE_MASK_0	((1 << 0) | (1 << 2) | (1 << 4))
-#define MDFLD_DSR_DAMAGE_MASK_2	((1 << 1) | (1 << 3) | (1 << 5))
-#define MDFLD_DSR_2D_3D 	(MDFLD_DSR_2D_3D_0 | MDFLD_DSR_2D_3D_2)
-
-#define MDFLD_DSR_RR		45
-#define MDFLD_DPU_ENABLE 	(1 << 31)
-#define MDFLD_DSR_FULLSCREEN 	(1 << 30)
-#define MDFLD_DSR_DELAY		(HZ / MDFLD_DSR_RR)
 
 #define PSB_PWR_STATE_ON		1
 #define PSB_PWR_STATE_OFF		2
···
 	uint32_t savePWM_CONTROL_LOGIC;
 };
 
-struct medfield_state {
-	uint32_t saveMIPI;
-	uint32_t saveMIPI_C;
-
-	uint32_t savePFIT_CONTROL;
-	uint32_t savePFIT_PGM_RATIOS;
-	uint32_t saveHDMIPHYMISCCTL;
-	uint32_t saveHDMIB_CONTROL;
-};
-
 struct cdv_state {
 	uint32_t saveDSPCLK_GATE_D;
 	uint32_t saveRAMCLK_GATE_D;
···
 	uint32_t saveVBT;
 	union {
 	        struct psb_state psb;
-		struct medfield_state mdfld;
 		struct cdv_state cdv;
 	};
 	uint32_t saveBLC_PWM_CTL2;
···
 	u32 pipeconf[3];
 	u32 dspcntr[3];
 
-	int mdfld_panel_id;
-
 	bool dplla_96mhz;	/* DPLL data from the VBT */
 
 	struct {
···
 /* oaktrail_device.c */
 extern const struct psb_ops oaktrail_chip_ops;
 
-/* mdlfd_device.c */
-extern const struct psb_ops mdfld_chip_ops;
-
 /* cdv_device.c */
 extern const struct psb_ops cdv_chip_ops;
 
···
 				    u32 value)
 {
 	int mcr = (0xE0<<24) | (port << 16) | (offset << 8) | 0xF0;
-	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
-	pci_write_config_dword(pci_root, 0xD4, value);
-	pci_write_config_dword(pci_root, 0xD0, mcr);
-	pci_dev_put(pci_root);
-}
-static inline u32 MDFLD_MSG_READ32(int domain, uint port, uint offset)
-{
-	int mcr = (0x10<<24) | (port << 16) | (offset << 8);
-	uint32_t ret_val = 0;
-	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
-	pci_write_config_dword(pci_root, 0xD0, mcr);
-	pci_read_config_dword(pci_root, 0xD4, &ret_val);
-	pci_dev_put(pci_root);
-	return ret_val;
-}
-static inline void MDFLD_MSG_WRITE32(int domain, uint port, uint offset,
-				     u32 value)
-{
-	int mcr = (0x11<<24) | (port << 16) | (offset << 8) | 0xF0;
 	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
 	pci_write_config_dword(pci_root, 0xD4, value);
 	pci_write_config_dword(pci_root, 0xD0, mcr);

drivers/gpu/drm/gma500/psb_intel_reg.h

···
 #define PIPE_PIXEL_MASK		0x00ffffff
 #define PIPE_PIXEL_SHIFT	0
 
-#define FW_BLC_SELF		0x20e0 
+#define FW_BLC_SELF		0x20e0
 #define FW_BLC_SELF_EN          (1<<15)
 
 #define DSPARB			0x70030
···
  * MOORESTOWN delta registers
  */
 #define MRST_DPLL_A		0x0f014
-#define MDFLD_DPLL_B		0x0f018
-#define MDFLD_INPUT_REF_SEL		(1 << 14)
-#define MDFLD_VCO_SEL			(1 << 16)
 #define DPLLA_MODE_LVDS			(2 << 26)	/* mrst */
-#define MDFLD_PLL_LATCHEN		(1 << 28)
-#define MDFLD_PWR_GATE_EN		(1 << 30)
-#define MDFLD_P1_MASK			(0x1FF << 17)
 #define MRST_FPA0		0x0f040
 #define MRST_FPA1		0x0f044
-#define MDFLD_DPLL_DIV0		0x0f048
-#define MDFLD_DPLL_DIV1		0x0f04c
 #define MRST_PERF_MODE		0x020f4
 
 /*
···
 
 #define MRST_DSPABASE		0x7019c
 #define MRST_DSPBBASE		0x7119c
-#define MDFLD_DSPCBASE		0x7219c
 
 /*
  * Moorestown registers.
···
 #define DEVICE_RESET_REG		0xb01C
 #define DPI_RESOLUTION_REG		0xb020
 #define RES_V_POS				0x10
-#define DBI_RESOLUTION_REG		0xb024 /* Reserved for MDFLD */
 #define HORIZ_SYNC_PAD_COUNT_REG	0xb028
 #define HORIZ_BACK_PORCH_COUNT_REG	0xb02C
 #define HORIZ_FRONT_PORCH_COUNT_REG	0xb030

drivers/gpu/drm/gma500/psb_irq.c

···
 
 #include <drm/drm_vblank.h>
 
-#include "mdfld_output.h"
 #include "power.h"
 #include "psb_drv.h"
 #include "psb_intel_reg.h"
···
 		"%s, can't clear status bits for pipe %d, its value = 0x%x.\n",
 		__func__, pipe, PSB_RVDC32(pipe_stat_reg));
 
-	if (pipe_stat_val & PIPE_VBLANK_STATUS ||
-	    (IS_MFLD(dev) && pipe_stat_val & PIPE_TE_STATUS)) {
+	if (pipe_stat_val & PIPE_VBLANK_STATUS) {
 		struct drm_crtc *crtc = drm_crtc_from_index(dev, pipe);
 		struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
 		unsigned long flags;
···
 	if (vdc_stat & (_PSB_PIPE_EVENT_FLAG|_PSB_IRQ_ASLE))
 		dsp_int = 1;
 
-	/* FIXME: Handle Medfield
-	if (vdc_stat & _MDFLD_DISP_ALL_IRQ_FLAG)
-		dsp_int = 1;
-	*/
-
 	if (vdc_stat & _PSB_IRQ_SGX_FLAG)
 		sgx_int = 1;
 	if (vdc_stat & _PSB_IRQ_DISP_HOTSYNC)
···
 		dev_priv->vdc_irq_mask |= _PSB_VSYNC_PIPEA_FLAG;
 	if (dev->vblank[1].enabled)
 		dev_priv->vdc_irq_mask |= _PSB_VSYNC_PIPEB_FLAG;
-
-	/* FIXME: Handle Medfield irq mask
-	if (dev->vblank[1].enabled)
-		dev_priv->vdc_irq_mask |= _MDFLD_PIPEB_EVENT_FLAG;
-	if (dev->vblank[2].enabled)
-		dev_priv->vdc_irq_mask |= _MDFLD_PIPEC_EVENT_FLAG;
-	*/
 
 	/* Revisit this area - want per device masks ? */
 	if (dev_priv->ops->hotplug)
···
 	uint32_t reg_val = 0;
 	uint32_t pipeconf_reg = mid_pipeconf(pipe);
 
-	/* Medfield is different - we should perhaps extract out vblank
-	   and blacklight etc ops */
-	if (IS_MFLD(dev))
-		return mdfld_enable_te(dev, pipe);
-
 	if (gma_power_begin(dev, false)) {
 		reg_val = REG_READ(pipeconf_reg);
 		gma_power_end(dev);
···
 	struct drm_psb_private *dev_priv = dev->dev_private;
 	unsigned long irqflags;
 
-	if (IS_MFLD(dev))
-		mdfld_disable_te(dev, pipe);
 	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
 
 	if (pipe == 0)
···
 	PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
 	PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
 	psb_disable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_ENABLE);
-
-	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
-}
-
-/*
- * It is used to enable TE interrupt
- */
-int mdfld_enable_te(struct drm_device *dev, int pipe)
-{
-	struct drm_psb_private *dev_priv =
-		(struct drm_psb_private *) dev->dev_private;
-	unsigned long irqflags;
-	uint32_t reg_val = 0;
-	uint32_t pipeconf_reg = mid_pipeconf(pipe);
-
-	if (gma_power_begin(dev, false)) {
-		reg_val = REG_READ(pipeconf_reg);
-		gma_power_end(dev);
-	}
-
-	if (!(reg_val & PIPEACONF_ENABLE))
-		return -EINVAL;
-
-	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
-
-	mid_enable_pipe_event(dev_priv, pipe);
-	psb_enable_pipestat(dev_priv, pipe, PIPE_TE_ENABLE);
-
-	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
-
-	return 0;
-}
-
-/*
- * It is used to disable TE interrupt
- */
-void mdfld_disable_te(struct drm_device *dev, int pipe)
-{
-	struct drm_psb_private *dev_priv =
-		(struct drm_psb_private *) dev->dev_private;
-	unsigned long irqflags;
-
-	if (!dev_priv->dsr_enable)
-		return;
-
-	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
-
-	mid_disable_pipe_event(dev_priv, pipe);
-	psb_disable_pipestat(dev_priv, pipe, PIPE_TE_ENABLE);
 
 	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
 }

drivers/gpu/drm/gma500/psb_irq.h

···
 void psb_disable_vblank(struct drm_crtc *crtc);
 u32  psb_get_vblank_counter(struct drm_crtc *crtc);
 
-int mdfld_enable_te(struct drm_device *dev, int pipe);
-void mdfld_disable_te(struct drm_device *dev, int pipe);
 #endif /* _PSB_IRQ_H_ */

drivers/gpu/drm/gma500/psb_reg.h

···
 #define PSB_PM_SSC			0x20
 #define PSB_PM_SSS			0x30
 #define PSB_PWRGT_DISPLAY_MASK		0xc /*on a different BA than video/gfx*/
-#define MDFLD_PWRGT_DISPLAY_A_CNTR	0x0000000c
-#define MDFLD_PWRGT_DISPLAY_B_CNTR	0x0000c000
-#define MDFLD_PWRGT_DISPLAY_C_CNTR	0x00030000
-#define MDFLD_PWRGT_DISP_MIPI_CNTR	0x000c0000
-#define MDFLD_PWRGT_DISPLAY_CNTR    (MDFLD_PWRGT_DISPLAY_A_CNTR | MDFLD_PWRGT_DISPLAY_B_CNTR | MDFLD_PWRGT_DISPLAY_C_CNTR | MDFLD_PWRGT_DISP_MIPI_CNTR) /* 0x000fc00c */
 /* Display SSS register bits are different in A0 vs. B0 */
 #define PSB_PWRGT_GFX_MASK		0x3
-#define MDFLD_PWRGT_DISPLAY_A_STS	0x000000c0
-#define MDFLD_PWRGT_DISPLAY_B_STS	0x00000300
-#define MDFLD_PWRGT_DISPLAY_C_STS	0x00000c00
 #define PSB_PWRGT_GFX_MASK_B0		0xc3
-#define MDFLD_PWRGT_DISPLAY_A_STS_B0	0x0000000c
-#define MDFLD_PWRGT_DISPLAY_B_STS_B0	0x0000c000
-#define MDFLD_PWRGT_DISPLAY_C_STS_B0	0x00030000
-#define MDFLD_PWRGT_DISP_MIPI_STS	0x000c0000
-#define MDFLD_PWRGT_DISPLAY_STS_A0    (MDFLD_PWRGT_DISPLAY_A_STS | MDFLD_PWRGT_DISPLAY_B_STS | MDFLD_PWRGT_DISPLAY_C_STS | MDFLD_PWRGT_DISP_MIPI_STS) /* 0x000fc00c */
-#define MDFLD_PWRGT_DISPLAY_STS_B0    (MDFLD_PWRGT_DISPLAY_A_STS_B0 | MDFLD_PWRGT_DISPLAY_B_STS_B0 | MDFLD_PWRGT_DISPLAY_C_STS_B0 | MDFLD_PWRGT_DISP_MIPI_STS) /* 0x000fc00c */
 #endif

drivers/gpu/drm/gma500/tc35876x-dsi-lvds.c

···
-/*
- * Copyright © 2011 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- */
-
-#include <linux/delay.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/gpio/consumer.h>
-
-#include <asm/intel_scu_ipc.h>
-
-#include "mdfld_dsi_dpi.h"
-#include "mdfld_dsi_pkg_sender.h"
-#include "mdfld_output.h"
-#include "tc35876x-dsi-lvds.h"
-
-static struct i2c_client *tc35876x_client;
-static struct i2c_client *cmi_lcd_i2c_client;
-/* Panel GPIOs */
-static struct gpio_desc *bridge_reset;
-static struct gpio_desc *bridge_bl_enable;
-static struct gpio_desc *backlight_voltage;
-
-
-#define FLD_MASK(start, end)	(((1 << ((start) - (end) + 1)) - 1) << (end))
-#define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
-
-/* DSI D-PHY Layer Registers */
-#define D0W_DPHYCONTTX		0x0004
-#define CLW_DPHYCONTRX		0x0020
-#define D0W_DPHYCONTRX		0x0024
-#define D1W_DPHYCONTRX		0x0028
-#define D2W_DPHYCONTRX		0x002C
-#define D3W_DPHYCONTRX		0x0030
-#define COM_DPHYCONTRX		0x0038
-#define CLW_CNTRL		0x0040
-#define D0W_CNTRL		0x0044
-#define D1W_CNTRL		0x0048
-#define D2W_CNTRL		0x004C
-#define D3W_CNTRL		0x0050
-#define DFTMODE_CNTRL		0x0054
-
-/* DSI PPI Layer Registers */
-#define PPI_STARTPPI		0x0104
-#define PPI_BUSYPPI		0x0108
-#define PPI_LINEINITCNT		0x0110
-#define PPI_LPTXTIMECNT		0x0114
-#define PPI_LANEENABLE		0x0134
-#define PPI_TX_RX_TA		0x013C
-#define PPI_CLS_ATMR		0x0140
-#define PPI_D0S_ATMR		0x0144
-#define PPI_D1S_ATMR		0x0148
-#define PPI_D2S_ATMR		0x014C
-#define PPI_D3S_ATMR		0x0150
-#define PPI_D0S_CLRSIPOCOUNT	0x0164
-#define PPI_D1S_CLRSIPOCOUNT	0x0168
-#define PPI_D2S_CLRSIPOCOUNT	0x016C
-#define PPI_D3S_CLRSIPOCOUNT	0x0170
-#define CLS_PRE			0x0180
-#define D0S_PRE			0x0184
-#define D1S_PRE			0x0188
-#define D2S_PRE			0x018C
-#define D3S_PRE			0x0190
-#define CLS_PREP		0x01A0
-#define D0S_PREP		0x01A4
-#define D1S_PREP		0x01A8
-#define D2S_PREP		0x01AC
-#define D3S_PREP		0x01B0
-#define CLS_ZERO		0x01C0
-#define D0S_ZERO		0x01C4
-#define D1S_ZERO		0x01C8
-#define D2S_ZERO		0x01CC
-#define D3S_ZERO		0x01D0
-#define PPI_CLRFLG		0x01E0
-#define PPI_CLRSIPO		0x01E4
-#define HSTIMEOUT		0x01F0
-#define HSTIMEOUTENABLE		0x01F4
-
-/* DSI Protocol Layer Registers */
-#define DSI_STARTDSI		0x0204
-#define DSI_BUSYDSI		0x0208
-#define DSI_LANEENABLE		0x0210
-#define DSI_LANESTATUS0		0x0214
-#define DSI_LANESTATUS1		0x0218
-#define DSI_INTSTATUS		0x0220
-#define DSI_INTMASK		0x0224
-#define DSI_INTCLR		0x0228
-#define DSI_LPTXTO		0x0230
-
-/* DSI General Registers */
-#define DSIERRCNT		0x0300
-
-/* DSI Application Layer Registers */
-#define APLCTRL			0x0400
-#define RDPKTLN			0x0404
-
-/* Video Path Registers */
-#define VPCTRL			0x0450
-#define HTIM1			0x0454
-#define HTIM2			0x0458
-#define VTIM1			0x045C
-#define VTIM2			0x0460
-#define VFUEN			0x0464
-
-/* LVDS Registers */
-#define LVMX0003		0x0480
-#define LVMX0407		0x0484
-#define LVMX0811		0x0488
-#define LVMX1215		0x048C
-#define LVMX1619		0x0490
-#define LVMX2023		0x0494
-#define LVMX2427		0x0498
-#define LVCFG			0x049C
-#define LVPHY0			0x04A0
-#define LVPHY1			0x04A4
-
-/* System Registers */
-#define SYSSTAT			0x0500
-#define SYSRST			0x0504
-
-/* GPIO Registers */
-/*#define GPIOC			0x0520*/
-#define GPIOO			0x0524
-#define GPIOI			0x0528
-
-/* I2C Registers */
-#define I2CTIMCTRL		0x0540
-#define I2CMADDR		0x0544
-#define WDATAQ			0x0548
-#define RDATAQ			0x054C
-
-/* Chip/Rev Registers */
-#define IDREG			0x0580
-
-/* Debug Registers */
-#define DEBUG00			0x05A0
-#define DEBUG01			0x05A4
-
-/* Panel CABC registers */
-#define PANEL_PWM_CONTROL	0x90
-#define PANEL_FREQ_DIVIDER_HI	0x91
-#define PANEL_FREQ_DIVIDER_LO	0x92
-#define PANEL_DUTY_CONTROL	0x93
-#define PANEL_MODIFY_RGB	0x94
-#define PANEL_FRAMERATE_CONTROL	0x96
-#define PANEL_PWM_MIN		0x97
-#define PANEL_PWM_REF		0x98
-#define PANEL_PWM_MAX		0x99
-#define PANEL_ALLOW_DISTORT	0x9A
-#define PANEL_BYPASS_PWMI	0x9B
-
-/* Panel color management registers */
-#define PANEL_CM_ENABLE		0x700
-#define PANEL_CM_HUE		0x701
-#define PANEL_CM_SATURATION	0x702
-#define PANEL_CM_INTENSITY	0x703
-#define PANEL_CM_BRIGHTNESS	0x704
-#define PANEL_CM_CE_ENABLE	0x705
-#define PANEL_CM_PEAK_EN	0x710
-#define PANEL_CM_GAIN		0x711
-#define PANEL_CM_HUETABLE_START	0x730
-#define PANEL_CM_HUETABLE_END	0x747 /* inclusive */
-
-/* Input muxing for registers LVMX0003...LVMX2427 */
-enum {
-	INPUT_R0,	/* 0 */
-	INPUT_R1,
-	INPUT_R2,
-	INPUT_R3,
-	INPUT_R4,
-	INPUT_R5,
-	INPUT_R6,
-	INPUT_R7,
-	INPUT_G0,	/* 8 */
-	INPUT_G1,
-	INPUT_G2,
-	INPUT_G3,
-	INPUT_G4,
-	INPUT_G5,
-	INPUT_G6,
-	INPUT_G7,
-	INPUT_B0,	/* 16 */
-	INPUT_B1,
-	INPUT_B2,
-	INPUT_B3,
-	INPUT_B4,
-	INPUT_B5,
-	INPUT_B6,
-	INPUT_B7,
-	INPUT_HSYNC,	/* 24 */
-	INPUT_VSYNC,
-	INPUT_DE,
-	LOGIC_0,
-	/* 28...31 undefined */
-};
-
-#define INPUT_MUX(lvmx03, lvmx02, lvmx01, lvmx00)		\
-	(FLD_VAL(lvmx03, 29, 24) | FLD_VAL(lvmx02, 20, 16) |	\
-	FLD_VAL(lvmx01, 12, 8) | FLD_VAL(lvmx00, 4, 0))
-
-/**
- * tc35876x_regw - Write DSI-LVDS bridge register using I2C
- * @client: struct i2c_client to use
- * @reg: register address
- * @value: value to write
- *
- * Returns 0 on success, or a negative error value.
- */
-static int tc35876x_regw(struct i2c_client *client, u16 reg, u32 value)
-{
-	int r;
-	u8 tx_data[] = {
-		/* NOTE: Register address big-endian, data little-endian. */
-		(reg >> 8) & 0xff,
-		reg & 0xff,
-		value & 0xff,
-		(value >> 8) & 0xff,
-		(value >> 16) & 0xff,
-		(value >> 24) & 0xff,
-	};
-	struct i2c_msg msgs[] = {
-		{
-			.addr = client->addr,
-			.flags = 0,
-			.buf = tx_data,
-			.len = ARRAY_SIZE(tx_data),
-		},
-	};
-
-	r = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
-	if (r < 0) {
-		dev_err(&client->dev, "%s: reg 0x%04x val 0x%08x error %d\n",
-			__func__, reg, value, r);
-		return r;
-	}
-
-	if (r < ARRAY_SIZE(msgs)) {
-		dev_err(&client->dev, "%s: reg 0x%04x val 0x%08x msgs %d\n",
-			__func__, reg, value, r);
-		return -EAGAIN;
-	}
-
-	dev_dbg(&client->dev, "%s: reg 0x%04x val 0x%08x\n",
-			__func__, reg, value);
-
-	return 0;
-}
-
-/**
- * tc35876x_regr - Read DSI-LVDS bridge register using I2C
- * @client: struct i2c_client to use
- * @reg: register address
- * @value: pointer for storing the value
- *
- * Returns 0 on success, or a negative error value.
- */
-static int tc35876x_regr(struct i2c_client *client, u16 reg, u32 *value)
-{
-	int r;
-	u8 tx_data[] = {
-		(reg >> 8) & 0xff,
-		reg & 0xff,
-	};
-	u8 rx_data[4];
-	struct i2c_msg msgs[] = {
-		{
-			.addr = client->addr,
-			.flags = 0,
-			.buf = tx_data,
-			.len = ARRAY_SIZE(tx_data),
-		},
-		{
-			.addr = client->addr,
-			.flags = I2C_M_RD,
-			.buf = rx_data,
-			.len = ARRAY_SIZE(rx_data),
-		 },
-	};
-
-	r = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
-	if (r < 0) {
-		dev_err(&client->dev, "%s: reg 0x%04x error %d\n", __func__,
-			reg, r);
-		return r;
-	}
-
-	if (r < ARRAY_SIZE(msgs)) {
-		dev_err(&client->dev, "%s: reg 0x%04x msgs %d\n", __func__,
-			reg, r);
-		return -EAGAIN;
-	}
-
-	*value = rx_data[0] << 24 | rx_data[1] << 16 |
-		rx_data[2] << 8 | rx_data[3];
-
-	dev_dbg(&client->dev, "%s: reg 0x%04x value 0x%08x\n", __func__,
-		reg, *value);
-
-	return 0;
-}
-
-void tc35876x_set_bridge_reset_state(struct drm_device *dev, int state)
-{
-	if (WARN(!tc35876x_client, "%s called before probe", __func__))
-		return;
-
-	dev_dbg(&tc35876x_client->dev, "%s: state %d\n", __func__, state);
-
-	if (!bridge_reset)
-		return;
-
-	if (state) {
-		gpiod_set_value_cansleep(bridge_reset, 0);
-		mdelay(10);
-	} else {
-		/* Pull MIPI Bridge reset pin to Low */
-		gpiod_set_value_cansleep(bridge_reset, 0);
-		mdelay(20);
-		/* Pull MIPI Bridge reset pin to High */
-		gpiod_set_value_cansleep(bridge_reset, 1);
-		mdelay(40);
-	}
-}
-
-void tc35876x_configure_lvds_bridge(struct drm_device *dev)
-{
-	struct i2c_client *i2c = tc35876x_client;
-	u32 ppi_lptxtimecnt;
-	u32 txtagocnt;
-	u32 txtasurecnt;
-	u32 id;
-
-	if (WARN(!tc35876x_client, "%s called before probe", __func__))
-		return;
-
-	dev_dbg(&tc35876x_client->dev, "%s\n", __func__);
-
-	if (!tc35876x_regr(i2c, IDREG, &id))
-		dev_info(&tc35876x_client->dev, "tc35876x ID 0x%08x\n", id);
-	else
-		dev_err(&tc35876x_client->dev, "Cannot read ID\n");
-
-	ppi_lptxtimecnt = 4;
-	txtagocnt = (5 * ppi_lptxtimecnt - 3) / 4;
-	txtasurecnt = 3 * ppi_lptxtimecnt / 2;
-	tc35876x_regw(i2c, PPI_TX_RX_TA, FLD_VAL(txtagocnt, 26, 16) |
-		FLD_VAL(txtasurecnt, 10, 0));
-	tc35876x_regw(i2c, PPI_LPTXTIMECNT, FLD_VAL(ppi_lptxtimecnt, 10, 0));
-
-	tc35876x_regw(i2c, PPI_D0S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0));
-	tc35876x_regw(i2c, PPI_D1S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0));
-	tc35876x_regw(i2c, PPI_D2S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0));
-	tc35876x_regw(i2c, PPI_D3S_CLRSIPOCOUNT, FLD_VAL(1, 5, 0));
-
-	/* Enabling MIPI & PPI lanes, Enable 4 lanes */
-	tc35876x_regw(i2c, PPI_LANEENABLE,
-		BIT(4) | BIT(3) | BIT(2) | BIT(1) | BIT(0));
-	tc35876x_regw(i2c, DSI_LANEENABLE,
-		BIT(4) | BIT(3) | BIT(2) | BIT(1) | BIT(0));
-	tc35876x_regw(i2c, PPI_STARTPPI, BIT(0));
-	tc35876x_regw(i2c, DSI_STARTDSI, BIT(0));
-
-	/* Setting LVDS output frequency */
-	tc35876x_regw(i2c, LVPHY0, FLD_VAL(1, 20, 16) |
-		FLD_VAL(2, 15, 14) | FLD_VAL(6, 4, 0)); /* 0x00048006 */
-
-	/* Setting video panel control register,0x00000120 VTGen=ON ?!?!? */
-	tc35876x_regw(i2c, VPCTRL, BIT(8) | BIT(5));
-
-	/* Horizontal back porch and horizontal pulse width. 0x00280028 */
-	tc35876x_regw(i2c, HTIM1, FLD_VAL(40, 24, 16) | FLD_VAL(40, 8, 0));
-
-	/* Horizontal front porch and horizontal active video size. 0x00500500*/
-	tc35876x_regw(i2c, HTIM2, FLD_VAL(80, 24, 16) | FLD_VAL(1280, 10, 0));
-
-	/* Vertical back porch and vertical sync pulse width. 0x000e000a */
-	tc35876x_regw(i2c, VTIM1, FLD_VAL(14, 23, 16) | FLD_VAL(10, 7, 0));
-
-	/* Vertical front porch and vertical display size. 0x000e0320 */
-	tc35876x_regw(i2c, VTIM2, FLD_VAL(14, 23, 16) | FLD_VAL(800, 10, 0));
-
-	/* Set above HTIM1, HTIM2, VTIM1, and VTIM2 at next VSYNC. */
-	tc35876x_regw(i2c, VFUEN, BIT(0));
-
-	/* Soft reset LCD controller. */
-	tc35876x_regw(i2c, SYSRST, BIT(2));
-
-	/* LVDS-TX input muxing */
-	tc35876x_regw(i2c, LVMX0003,
-		INPUT_MUX(INPUT_R5, INPUT_R4, INPUT_R3, INPUT_R2));
-	tc35876x_regw(i2c, LVMX0407,
-		INPUT_MUX(INPUT_G2, INPUT_R7, INPUT_R1, INPUT_R6));
-	tc35876x_regw(i2c, LVMX0811,
-		INPUT_MUX(INPUT_G1, INPUT_G0, INPUT_G4, INPUT_G3));
-	tc35876x_regw(i2c, LVMX1215,
-		INPUT_MUX(INPUT_B2, INPUT_G7, INPUT_G6, INPUT_G5));
-	tc35876x_regw(i2c, LVMX1619,
-		INPUT_MUX(INPUT_B4, INPUT_B3, INPUT_B1, INPUT_B0));
-	tc35876x_regw(i2c, LVMX2023,
-		INPUT_MUX(LOGIC_0,  INPUT_B7, INPUT_B6, INPUT_B5));
-	tc35876x_regw(i2c, LVMX2427,
-		INPUT_MUX(INPUT_R0, INPUT_DE, INPUT_VSYNC, INPUT_HSYNC));
-
-	/* Enable LVDS transmitter. */
-	tc35876x_regw(i2c, LVCFG, BIT(0));
-
-	/* Clear notifications. Don't write reserved bits. Was write 0xffffffff
-	 * to 0x0288, must be in error?! */
-	tc35876x_regw(i2c, DSI_INTCLR, FLD_MASK(31, 30) | FLD_MASK(22, 0));
-}
-
-#define GPIOPWMCTRL	0x38F
-#define PWM0CLKDIV0	0x62 /* low byte */
-#define PWM0CLKDIV1	0x61 /* high byte */
-
-#define SYSTEMCLK	19200000UL /* 19.2 MHz */
-#define PWM_FREQUENCY	9600 /* Hz */
-
-/* f = baseclk / (clkdiv + 1) => clkdiv = (baseclk - f) / f */
-static inline u16 calc_clkdiv(unsigned long baseclk, unsigned int f)
-{
-	return (baseclk - f) / f;
-}
-
-static void tc35876x_brightness_init(struct drm_device *dev)
-{
-	int ret;
-	u8 pwmctrl;
-	u16 clkdiv;
-
-	/* Make sure the PWM reference is the 19.2 MHz system clock. Read first
-	 * instead of setting directly to catch potential conflicts between PWM
-	 * users. */
-	ret = intel_scu_ipc_ioread8(GPIOPWMCTRL, &pwmctrl);
-	if (ret || pwmctrl != 0x01) {
-		if (ret)
-			dev_err(dev->dev, "GPIOPWMCTRL read failed\n");
-		else
-			dev_warn(dev->dev, "GPIOPWMCTRL was not set to system clock (pwmctrl = 0x%02x)\n", pwmctrl);
-
-		ret = intel_scu_ipc_iowrite8(GPIOPWMCTRL, 0x01);
-		if (ret)
-			dev_err(dev->dev, "GPIOPWMCTRL set failed\n");
-	}
-
-	clkdiv = calc_clkdiv(SYSTEMCLK, PWM_FREQUENCY);
-
-	ret = intel_scu_ipc_iowrite8(PWM0CLKDIV1, (clkdiv >> 8) & 0xff);
-	if (!ret)
-		ret = intel_scu_ipc_iowrite8(PWM0CLKDIV0, clkdiv & 0xff);
-
-	if (ret)
-		dev_err(dev->dev, "PWM0CLKDIV set failed\n");
-	else
-		dev_dbg(dev->dev, "PWM0CLKDIV set to 0x%04x (%d Hz)\n",
-			clkdiv, PWM_FREQUENCY);
-}
-
-#define PWM0DUTYCYCLE			0x67
-
-void tc35876x_brightness_control(struct drm_device *dev, int level)
-{
-	int ret;
-	u8 duty_val;
-	u8 panel_duty_val;
-
-	level = clamp(level, 0, MDFLD_DSI_BRIGHTNESS_MAX_LEVEL);
-
-	/* PWM duty cycle 0x00...0x63 corresponds to 0...99% */
-	duty_val = level * 0x63 / MDFLD_DSI_BRIGHTNESS_MAX_LEVEL;
-
-	/* I won't pretend to understand this formula. The panel spec is quite
-	 * bad engrish.
-	 */
-	panel_duty_val = (2 * level - 100) * 0xA9 /
-			 MDFLD_DSI_BRIGHTNESS_MAX_LEVEL + 0x56;
-
-	ret = intel_scu_ipc_iowrite8(PWM0DUTYCYCLE, duty_val);
-	if (ret)
-		dev_err(&tc35876x_client->dev, "%s: ipc write fail\n",
-			__func__);
-
-	if (cmi_lcd_i2c_client) {
-		ret = i2c_smbus_write_byte_data(cmi_lcd_i2c_client,
-						PANEL_PWM_MAX, panel_duty_val);
-		if (ret < 0)
-			dev_err(&cmi_lcd_i2c_client->dev, "%s: i2c write failed\n",
-				__func__);
-	}
-}
-
-void tc35876x_toshiba_bridge_panel_off(struct drm_device *dev)
-{
-	if (WARN(!tc35876x_client, "%s called before probe", __func__))
-		return;
-
-	dev_dbg(&tc35876x_client->dev, "%s\n", __func__);
-
-	if (bridge_bl_enable)
-		gpiod_set_value_cansleep(bridge_bl_enable, 0);
-
-	if (backlight_voltage)
-		gpiod_set_value_cansleep(backlight_voltage, 0);
-}
-
-void tc35876x_toshiba_bridge_panel_on(struct drm_device *dev)
-{
-	struct drm_psb_private *dev_priv = dev->dev_private;
-
-	if (WARN(!tc35876x_client, "%s called before probe", __func__))
-		return;
-
-	dev_dbg(&tc35876x_client->dev, "%s\n", __func__);
-
-	if (backlight_voltage) {
-		gpiod_set_value_cansleep(backlight_voltage, 1);
-		msleep(260);
-	}
-
-	if (cmi_lcd_i2c_client) {
-		int ret;
-		dev_dbg(&cmi_lcd_i2c_client->dev, "setting TCON\n");
-		/* Bit 4 is average_saving. Setting it to 1, the brightness is
-		 * referenced to the average of the frame content. 0 means
-		 * reference to the maximum of frame contents. Bits 3:0 are
-		 * allow_distort. When set to a nonzero value, all color values
-		 * between 255-allow_distort*2 and 255 are mapped to the
-		 * 255-allow_distort*2 value.
-		 */
-		ret = i2c_smbus_write_byte_data(cmi_lcd_i2c_client,
-						PANEL_ALLOW_DISTORT, 0x10);
-		if (ret < 0)
-			dev_err(&cmi_lcd_i2c_client->dev,
-				"i2c write failed (%d)\n", ret);
-		ret = i2c_smbus_write_byte_data(cmi_lcd_i2c_client,
-						PANEL_BYPASS_PWMI, 0);
-		if (ret < 0)
-			dev_err(&cmi_lcd_i2c_client->dev,
-				"i2c write failed (%d)\n", ret);
-		/* Set minimum brightness value - this is tunable */
-		ret = i2c_smbus_write_byte_data(cmi_lcd_i2c_client,
-						PANEL_PWM_MIN, 0x35);
-		if (ret < 0)
-			dev_err(&cmi_lcd_i2c_client->dev,
-				"i2c write failed (%d)\n", ret);
-	}
-
-	if (bridge_bl_enable)
-		gpiod_set_value_cansleep(bridge_bl_enable, 1);
-
-	tc35876x_brightness_control(dev, dev_priv->brightness_adjusted);
-}
-
-static struct drm_display_mode *tc35876x_get_config_mode(struct drm_device *dev)
-{
-	struct drm_display_mode *mode;
-
-	dev_dbg(dev->dev, "%s\n", __func__);
-
-	mode = kzalloc(sizeof(*mode), GFP_KERNEL);
-	if (!mode)
-		return NULL;
-
-	/* FIXME: do this properly. */
-	mode->hdisplay = 1280;
-	mode->vdisplay = 800;
-	mode->hsync_start = 1360;
-	mode->hsync_end = 1400;
-	mode->htotal = 1440;
-	mode->vsync_start = 814;
-	mode->vsync_end = 824;
-	mode->vtotal = 838;
-	mode->clock = 33324 << 1;
-
-	dev_info(dev->dev, "hdisplay(w) = %d\n", mode->hdisplay);
-	dev_info(dev->dev, "vdisplay(h) = %d\n", mode->vdisplay);
-	dev_info(dev->dev, "HSS = %d\n", mode->hsync_start);
-	dev_info(dev->dev, "HSE = %d\n", mode->hsync_end);
-	dev_info(dev->dev, "htotal = %d\n", mode->htotal);
-	dev_info(dev->dev, "VSS = %d\n", mode->vsync_start);
-	dev_info(dev->dev, "VSE = %d\n", mode->vsync_end);
-	dev_info(dev->dev, "vtotal = %d\n", mode->vtotal);
-	dev_info(dev->dev, "clock = %d\n", mode->clock);
-
-	drm_mode_set_name(mode);
-	drm_mode_set_crtcinfo(mode, 0);
-
-	mode->type |= DRM_MODE_TYPE_PREFERRED;
-
-	return mode;
-}
-
-/* DV1 Active area 216.96 x 135.6 mm */
-#define DV1_PANEL_WIDTH 217
-#define DV1_PANEL_HEIGHT 136
-
-static int tc35876x_get_panel_info(struct drm_device *dev, int pipe,
-				struct panel_info *pi)
-{
-	if (!dev || !pi)
-		return -EINVAL;
-
-	pi->width_mm = DV1_PANEL_WIDTH;
-	pi->height_mm = DV1_PANEL_HEIGHT;
-
-	return 0;
-}
-
-static int tc35876x_bridge_probe(struct i2c_client *client,
-				const struct i2c_device_id *id)
-{
-	dev_info(&client->dev, "%s\n", __func__);
-
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
-		dev_err(&client->dev, "%s: i2c_check_functionality() failed\n",
-			__func__);
-		return -ENODEV;
-	}
-
-	bridge_reset = devm_gpiod_get_optional(&client->dev, "bridge-reset", GPIOD_OUT_LOW);
-	if (IS_ERR(bridge_reset))
-		return PTR_ERR(bridge_reset);
-	if (bridge_reset)
-		gpiod_set_consumer_name(bridge_reset, "tc35876x bridge reset");
-
-	bridge_bl_enable = devm_gpiod_get_optional(&client->dev, "bl-en", GPIOD_OUT_LOW);
-	if (IS_ERR(bridge_bl_enable))
-		return PTR_ERR(bridge_bl_enable);
-	if (bridge_bl_enable)
-		gpiod_set_consumer_name(bridge_bl_enable, "tc35876x panel bl en");
-
-	backlight_voltage = devm_gpiod_get_optional(&client->dev, "vadd", GPIOD_OUT_LOW);
-	if (IS_ERR(backlight_voltage))
-		return PTR_ERR(backlight_voltage);
-	if (backlight_voltage)
-		gpiod_set_consumer_name(backlight_voltage, "tc35876x panel vadd");
-
-	tc35876x_client = client;
-
-	return 0;
-}
-
-static int tc35876x_bridge_remove(struct i2c_client *client)
-{
-	dev_dbg(&client->dev, "%s\n", __func__);
-
-	tc35876x_client = NULL;
-
-	return 0;
-}
-
-static const struct i2c_device_id tc35876x_bridge_id[] = {
-	{ "i2c_disp_brig", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, tc35876x_bridge_id);
-
-static struct i2c_driver tc35876x_bridge_i2c_driver = {
-	.driver = {
-		.name = "i2c_disp_brig",
-	},
-	.id_table = tc35876x_bridge_id,
-	.probe = tc35876x_bridge_probe,
-	.remove = tc35876x_bridge_remove,
-};
-
-/* LCD panel I2C */
-static int cmi_lcd_i2c_probe(struct i2c_client *client,
-			     const struct i2c_device_id *id)
-{
-	dev_info(&client->dev, "%s\n", __func__);
-
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
-		dev_err(&client->dev, "%s: i2c_check_functionality() failed\n",
-			__func__);
-		return -ENODEV;
-	}
-
-	cmi_lcd_i2c_client = client;
-
-	return 0;
-}
-
-static int cmi_lcd_i2c_remove(struct i2c_client *client)
-{
-	dev_dbg(&client->dev, "%s\n", __func__);
-
-	cmi_lcd_i2c_client = NULL;
-
-	return 0;
-}
-
-static const struct i2c_device_id cmi_lcd_i2c_id[] = {
-	{ "cmi-lcd", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, cmi_lcd_i2c_id);
-
-static struct i2c_driver cmi_lcd_i2c_driver = {
-	.driver = {
-		.name = "cmi-lcd",
-	},
-	.id_table = cmi_lcd_i2c_id,
-	.probe = cmi_lcd_i2c_probe,
-	.remove = cmi_lcd_i2c_remove,
-};
-
-/* HACK to create I2C device while it's not created by platform code */
-#define CMI_LCD_I2C_ADAPTER	2
-#define CMI_LCD_I2C_ADDR	0x60
-
-static int cmi_lcd_hack_create_device(void)
-{
-	struct i2c_adapter *adapter;
-	struct i2c_client *client;
-	struct i2c_board_info info = {
-		.type = "cmi-lcd",
-		.addr = CMI_LCD_I2C_ADDR,
-	};
-
-	pr_debug("%s\n", __func__);
-
-	adapter = i2c_get_adapter(CMI_LCD_I2C_ADAPTER);
-	if (!adapter) {
-		pr_err("%s: i2c_get_adapter(%d) failed\n", __func__,
-			CMI_LCD_I2C_ADAPTER);
-		return -EINVAL;
-	}
-
-	client = i2c_new_client_device(adapter, &info);
-	if (IS_ERR(client)) {
-		pr_err("%s: creating I2C device failed\n", __func__);
-		i2c_put_adapter(adapter);
-		return PTR_ERR(client);
-	}
-
-	return 0;
-}
-
-static const struct drm_encoder_helper_funcs tc35876x_encoder_helper_funcs = {
-	.dpms = mdfld_dsi_dpi_dpms,
-	.mode_fixup = mdfld_dsi_dpi_mode_fixup,
-	.prepare = mdfld_dsi_dpi_prepare,
-	.mode_set = mdfld_dsi_dpi_mode_set,
-	.commit = mdfld_dsi_dpi_commit,
-};
-
-const struct panel_funcs mdfld_tc35876x_funcs = {
-	.encoder_helper_funcs = &tc35876x_encoder_helper_funcs,
-	.get_config_mode = tc35876x_get_config_mode,
-	.get_panel_info = tc35876x_get_panel_info,
-};
-
-void tc35876x_init(struct drm_device *dev)
-{
-	int r;
-
-	dev_dbg(dev->dev, "%s\n", __func__);
-
-	cmi_lcd_hack_create_device();
-
-	r = i2c_add_driver(&cmi_lcd_i2c_driver);
-	if (r < 0)
-		dev_err(dev->dev,
-			"%s: i2c_add_driver() for %s failed (%d)\n",
-			__func__, cmi_lcd_i2c_driver.driver.name, r);
-
-	r = i2c_add_driver(&tc35876x_bridge_i2c_driver);
-	if (r < 0)
-		dev_err(dev->dev,
-			"%s: i2c_add_driver() for %s failed (%d)\n",
-			__func__, tc35876x_bridge_i2c_driver.driver.name, r);
-
-	tc35876x_brightness_init(dev);
-}
-
-void tc35876x_exit(void)
-{
-	pr_debug("%s\n", __func__);
-
-	i2c_del_driver(&tc35876x_bridge_i2c_driver);
-
-	if (cmi_lcd_i2c_client)
-		i2c_del_driver(&cmi_lcd_i2c_driver);
-}

drivers/gpu/drm/gma500/tc35876x-dsi-lvds.h

···
-/*
- * Copyright © 2011 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- */
-
-#ifndef __MDFLD_DSI_LVDS_BRIDGE_H__
-#define __MDFLD_DSI_LVDS_BRIDGE_H__
-
-void tc35876x_set_bridge_reset_state(struct drm_device *dev, int state);
-void tc35876x_configure_lvds_bridge(struct drm_device *dev);
-void tc35876x_brightness_control(struct drm_device *dev, int level);
-void tc35876x_toshiba_bridge_panel_off(struct drm_device *dev);
-void tc35876x_toshiba_bridge_panel_on(struct drm_device *dev);
-void tc35876x_init(struct drm_device *dev);
-void tc35876x_exit(void);
-
-extern const struct panel_funcs mdfld_tc35876x_funcs;
-
-#endif /*__MDFLD_DSI_LVDS_BRIDGE_H__*/