Merge tag 'drm-misc-next-2025-05-08' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.16-rc1:

Cross-subsystem Changes:
- Change vsprintf %p4cn to %p4chR, remove %p4cn.

Core Changes:
- Documentation updates (fb rendering, actual_brightness)

Driver Changes:
- Small fixes to appletbdrm, panthor, st7571-i2c, rockchip, renesas,
panic handler, gpusvm, vkms, panel timings.
- Add AUO B140QAN08.H, BOE NE140WUM-N6S, CSW MNE007QS3-8, BOE TD4320 panels.
- Convert rk3066_hdmi to bridge driver.
- Improve HPD on anx7625.
- Speed up loading tegra firmware, and other small fixes to tegra & host1x.

Signed-off-by: Dave Airlie <[e-mail]>
From: Maarten Lankhorst <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

Documentation/ABI/stable/sysfs-class-backlight

···
 KernelVersion:	2.6.17
 Contact:	Richard Purdie <[e-mail]>
 Description:
-		Show the actual brightness by querying the hardware.
+		Show the actual brightness by querying the hardware. Due
+		to implementation differences in hardware this may not
+		match the value in 'brightness'. For example some hardware
+		may treat blanking differently or have custom power saving
+		features. Userspace should generally use the values in
+		'brightness' to make decisions.
 Users:		HAL
 
 What:		/sys/class/backlight/<backlight>/max_brightness

Documentation/core-api/printk-formats.rst

···
 -------------------
 
 ::
-	%p4c[hnlb]	gP00 (0x67503030)
+	%p4c[h[R]lb]	gP00 (0x67503030)
 
 Print a generic FourCC code, as both ASCII characters and its numerical
 value as hexadecimal.
···
 The generic FourCC code is always printed in the big-endian format,
 the most significant byte first. This is the opposite of V4L/DRM FourCCs.
 
-The additional ``h``, ``n``, ``l``, and ``b`` specifiers define what
+The additional ``h``, ``hR``, ``l``, and ``b`` specifiers define what
 endianness is used to load the stored bytes. The data might be interpreted
-using the host byte order, network byte order, little-endian, or big-endian.
+using the host, reversed host byte order, little-endian, or big-endian.
 
 Passed by reference.
 
 Examples for a little-endian machine, given &(u32)0x67503030::
 
 	%p4ch	gP00 (0x67503030)
-	%p4cn	00Pg (0x30305067)
+	%p4chR	00Pg (0x30305067)
 	%p4cl	gP00 (0x67503030)
 	%p4cb	00Pg (0x30305067)
 
 Examples for a big-endian machine, given &(u32)0x67503030::
 
 	%p4ch	gP00 (0x67503030)
-	%p4cn	00Pg (0x30305067)
+	%p4chR	00Pg (0x30305067)
 	%p4cl	00Pg (0x30305067)
 	%p4cb	gP00 (0x67503030)
 

Documentation/devicetree/bindings/display/panel/boe,td4320.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/boe,td4320.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BOE TD4320 MIPI-DSI panels
+
+maintainers:
+  - Barnabas Czeman <[e-mail]>
+
+description:
+  BOE TD4320 6.3" 1080x2340 panel found in Xiaomi Redmi Note 7 smartphone.
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: boe,td4320
+
+  reg:
+    maxItems: 1
+
+  iovcc-supply:
+    description: I/O voltage rail
+
+  vsn-supply:
+    description: Negative source voltage rail
+
+  vsp-supply:
+    description: Positive source voltage rail
+
+required:
+  - compatible
+  - reg
+  - reset-gpios
+  - port
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "boe,td4320";
+            reg = <0>;
+            backlight = <&backlight>;
+            reset-gpios = <&tlmm 45 GPIO_ACTIVE_LOW>;
+
+            port {
+                panel_in: endpoint {
+                    remote-endpoint = <&dsi_out>;
+                };
+            };
+        };
+    };
+
+...

Documentation/devicetree/bindings/display/panel/leadtek,ltk050h3146w.yaml

···
     maxItems: 1
 
   backlight: true
+  port: true
   reset-gpios: true
   iovcc-supply:
     description: regulator that supplies the iovcc voltage

Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml

···
     maxItems: 1
 
   backlight: true
+  port: true
   reset-gpios: true
   iovcc-supply:
     description: regulator that supplies the iovcc voltage

Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml

···
     maxItems: 1
 
   clocks:
-    minItems: 1
     items:
       - description: The HDMI controller main clock
       - description: The HDMI PHY reference clock
 
   clock-names:
-    minItems: 1
     items:
       - const: pclk
       - const: ref
···
       - port@0
       - port@1
 
+  rockchip,grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to GRF used for control the polarity of hsync/vsync of rk3036
+      HDMI.
+
 required:
   - compatible
   - reg
···
             const: rockchip,rk3036-inno-hdmi
 
     then:
+      required:
+        - rockchip,grf
       properties:
         power-domains: false
 
···
             const: rockchip,rk3128-inno-hdmi
 
     then:
-      properties:
-        clocks:
-          minItems: 2
-        clock-names:
-          minItems: 2
       required:
         - power-domains
 
···
       compatible = "rockchip,rk3036-inno-hdmi";
       reg = <0x20034000 0x4000>;
       interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
-      clocks = <&cru  PCLK_HDMI>;
-      clock-names = "pclk";
+      clocks = <&cru PCLK_HDMI>, <&cru SCLK_LCDC>;
+      clock-names = "pclk", "ref";
       pinctrl-names = "default";
       pinctrl-0 = <&hdmi_ctl>;
+      rockchip,grf = <&grf>;
       #sound-dai-cells = <0>;
 
       ports {

drivers/gpu/drm/bridge/analogix/anx7625.c

···
 	usleep_range(11000, 12000);
 
 	/* Power on pin enable */
-	gpiod_set_value(ctx->pdata.gpio_p_on, 1);
+	gpiod_set_value_cansleep(ctx->pdata.gpio_p_on, 1);
 	usleep_range(10000, 11000);
 	/* Power reset pin enable */
-	gpiod_set_value(ctx->pdata.gpio_reset, 1);
+	gpiod_set_value_cansleep(ctx->pdata.gpio_reset, 1);
 	usleep_range(10000, 11000);
 
 	DRM_DEV_DEBUG_DRIVER(dev, "power on !\n");
···
 		return;
 	}
 
-	gpiod_set_value(ctx->pdata.gpio_reset, 0);
+	gpiod_set_value_cansleep(ctx->pdata.gpio_reset, 0);
 	usleep_range(1000, 1100);
-	gpiod_set_value(ctx->pdata.gpio_p_on, 0);
+	gpiod_set_value_cansleep(ctx->pdata.gpio_p_on, 0);
 	usleep_range(1000, 1100);
 
 	ret = regulator_bulk_disable(ARRAY_SIZE(ctx->pdata.supplies),
···
 	struct device *dev = ctx->dev;
 
 	DRM_DEV_DEBUG_DRIVER(dev, "sink detect\n");
-
-	if (ctx->pdata.panel_bridge)
-		return connector_status_connected;
 
 	return ctx->hpd_status ? connector_status_connected :
 				     connector_status_disconnected;
···
 	return anx7625_edid_read(ctx);
 }
 
+static void anx7625_bridge_hpd_enable(struct drm_bridge *bridge)
+{
+	struct anx7625_data *ctx = bridge_to_anx7625(bridge);
+	struct device *dev = ctx->dev;
+
+	pm_runtime_get_sync(dev);
+}
+
+static void anx7625_bridge_hpd_disable(struct drm_bridge *bridge)
+{
+	struct anx7625_data *ctx = bridge_to_anx7625(bridge);
+	struct device *dev = ctx->dev;
+
+	pm_runtime_put_sync(dev);
+}
+
 static const struct drm_bridge_funcs anx7625_bridge_funcs = {
 	.attach = anx7625_bridge_attach,
 	.detach = anx7625_bridge_detach,
···
 	.atomic_reset = drm_atomic_helper_bridge_reset,
 	.detect = anx7625_bridge_detect,
 	.edid_read = anx7625_bridge_edid_read,
+	.hpd_enable = anx7625_bridge_hpd_enable,
+	.hpd_disable = anx7625_bridge_hpd_disable,
 };
 
 static int anx7625_register_i2c_dummy_clients(struct anx7625_data *ctx,
···
 	platform->bridge.of_node = dev->of_node;
 	if (!anx7625_of_panel_on_aux_bus(dev))
 		platform->bridge.ops |= DRM_BRIDGE_OP_EDID;
-	if (!platform->pdata.panel_bridge)
-		platform->bridge.ops |= DRM_BRIDGE_OP_HPD |
-					DRM_BRIDGE_OP_DETECT;
+	if (!platform->pdata.panel_bridge || !anx7625_of_panel_on_aux_bus(dev))
+		platform->bridge.ops |= DRM_BRIDGE_OP_HPD | DRM_BRIDGE_OP_DETECT;
 	platform->bridge.type = platform->pdata.panel_bridge ?
 				    DRM_MODE_CONNECTOR_eDP :
 				    DRM_MODE_CONNECTOR_DisplayPort;

drivers/gpu/drm/drm_blend.c

···
  * 	the currently visible vertical area of the &drm_crtc.
  * FB_ID:
  * 	Mode object ID of the &drm_framebuffer this plane should scan out.
+ *
+ *	When a KMS client is performing front-buffer rendering, it should set
+ *	FB_ID to the same front-buffer FB on each atomic commit. This implies
+ *	to the driver that it needs to re-read the same FB again. Otherwise
+ *	drivers which do not employ continuously repeated scanout cycles might
+ *	not update the screen.
  * CRTC_ID:
  * 	Mode object ID of the &drm_crtc this plane should be connected to.
  *

drivers/gpu/drm/drm_gpusvm.c

···
 	unsigned long num_dma_mapped;
 	unsigned int order = 0;
 	unsigned long *pfns;
-	struct page **pages;
 	int err = 0;
 	struct dev_pagemap *pagemap;
 	struct drm_pagemap *dpagemap;
···
 	if (err)
 		goto err_free;
 
-	pages = (struct page **)pfns;
 map_pages:
 	/*
 	 * Perform all dma mappings under the notifier lock to not
···
 				err = -EFAULT;
 				goto err_unmap;
 			}
-
-			pages[i] = page;
 		} else {
 			dma_addr_t addr;
 

drivers/gpu/drm/drm_panic_qr.rs

···
         SegmentIterator {
             segment: self,
             offset: 0,
-            carry: 0,
-            carry_len: 0,
+            decfifo: Default::default(),
+        }
+    }
+}
+
+/// Max fifo size is 17 (max push) + 2 (max remaining)
+const MAX_FIFO_SIZE: usize = 19;
+
+/// A simple Decimal digit FIFO
+#[derive(Default)]
+struct DecFifo {
+    decimals: [u8; MAX_FIFO_SIZE],
+    len: usize,
+}
+
+impl DecFifo {
+    fn push(&mut self, data: u64, len: usize) {
+        let mut chunk = data;
+        for i in (0..self.len).rev() {
+            self.decimals[i + len] = self.decimals[i];
+        }
+        for i in 0..len {
+            self.decimals[i] = (chunk % 10) as u8;
+            chunk /= 10;
+        }
+        self.len += len;
+    }
+
+    /// Pop 3 decimal digits from the FIFO
+    fn pop3(&mut self) -> Option<(u16, usize)> {
+        if self.len == 0 {
+            None
+        } else {
+            let poplen = 3.min(self.len);
+            self.len -= poplen;
+            let mut out = 0;
+            let mut exp = 1;
+            for i in 0..poplen {
+                out += self.decimals[self.len + i] as u16 * exp;
+                exp *= 10;
+            }
+            Some((out, NUM_CHARS_BITS[poplen]))
         }
     }
 }
···
 struct SegmentIterator<'a> {
     segment: &'a Segment<'a>,
     offset: usize,
-    carry: u64,
-    carry_len: usize,
+    decfifo: DecFifo,
 }
 
 impl Iterator for SegmentIterator<'_> {
···
                 }
             }
             Segment::Numeric(data) => {
-                if self.carry_len < 3 && self.offset < data.len() {
-                    // If there are less than 3 decimal digits in the carry,
-                    // take the next 7 bytes of input, and add them to the carry.
+                if self.decfifo.len < 3 && self.offset < data.len() {
+                    // If there are less than 3 decimal digits in the fifo,
+                    // take the next 7 bytes of input, and push them to the fifo.
                     let mut buf = [0u8; 8];
                     let len = 7.min(data.len() - self.offset);
                     buf[..len].copy_from_slice(&data[self.offset..self.offset + len]);
                     let chunk = u64::from_le_bytes(buf);
-                    let pow = u64::pow(10, BYTES_TO_DIGITS[len] as u32);
-                    self.carry = chunk + self.carry * pow;
+                    self.decfifo.push(chunk, BYTES_TO_DIGITS[len]);
                     self.offset += len;
-                    self.carry_len += BYTES_TO_DIGITS[len];
                 }
-                match self.carry_len {
-                    0 => None,
-                    len => {
-                        // take the next 3 decimal digits of the carry
-                        // and return 10bits of numeric data.
-                        let out_len = 3.min(len);
-                        self.carry_len -= out_len;
-                        let pow = u64::pow(10, self.carry_len as u32);
-                        let out = (self.carry / pow) as u16;
-                        self.carry %= pow;
-                        Some((out, NUM_CHARS_BITS[out_len]))
-                    }
-                }
+                self.decfifo.pop3()
             }
         }
     }

drivers/gpu/drm/panel/Kconfig

···
 	  24 bit RGB per pixel. It provides a MIPI DSI interface to
 	  the host and has a built-in LED backlight.
 
+config DRM_PANEL_BOE_TD4320
+	tristate "BOE TD4320 DSI panel"
+	depends on OF
+	depends on DRM_MIPI_DSI
+	depends on BACKLIGHT_CLASS_DEVICE
+	help
+	  Say Y here if you want to enable support for BOE TD4320 1080x2340
+	  video mode panel found in Xiaomi Redmi Note 7 smartphones.
+
 config DRM_PANEL_BOE_TH101MB31UIG002_28A
 	tristate "Boe TH101MB31UIG002-28A panel"
 	depends on OF

drivers/gpu/drm/panel/Makefile

···
 obj-$(CONFIG_DRM_PANEL_AUO_A030JTN01) += panel-auo-a030jtn01.o
 obj-$(CONFIG_DRM_PANEL_BOE_BF060Y8M_AJ0) += panel-boe-bf060y8m-aj0.o
 obj-$(CONFIG_DRM_PANEL_BOE_HIMAX8279D) += panel-boe-himax8279d.o
+obj-$(CONFIG_DRM_PANEL_BOE_TD4320) += panel-boe-td4320.o
 obj-$(CONFIG_DRM_PANEL_BOE_TH101MB31UIG002_28A) += panel-boe-th101mb31ig002-28a.o
 obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_LL2) += panel-boe-tv101wum-ll2.o
 obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_NL6) += panel-boe-tv101wum-nl6.o

drivers/gpu/drm/panel/panel-boe-td4320.c

···
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2024 Barnabas Czeman <[e-mail]>
+// Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree:
+//   Copyright (c) 2013, The Linux Foundation. All rights reserved.
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_probe_helper.h>
+
+struct boe_td4320 {
+	struct drm_panel panel;
+	struct mipi_dsi_device *dsi;
+	struct regulator_bulk_data *supplies;
+	struct gpio_desc *reset_gpio;
+};
+
+static const struct regulator_bulk_data boe_td4320_supplies[] = {
+	{ .supply = "iovcc" },
+	{ .supply = "vsn" },
+	{ .supply = "vsp" },
+};
+
+static inline struct boe_td4320 *to_boe_td4320(struct drm_panel *panel)
+{
+	return container_of(panel, struct boe_td4320, panel);
+}
+
+static void boe_td4320_reset(struct boe_td4320 *ctx)
+{
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	usleep_range(1000, 2000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	usleep_range(5000, 6000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	msleep(30);
+}
+
+static int boe_td4320_on(struct boe_td4320 *ctx)
+{
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
+
+	ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x04);
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd6, 0x00);
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb8,
+					 0x19, 0x55, 0x00, 0xbe, 0x00, 0x00,
+					 0x00);
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb9,
+					 0x4d, 0x55, 0x05, 0xe6, 0x00, 0x02,
+					 0x03);
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xba,
+					 0x9b, 0x5b, 0x07, 0xe6, 0x00, 0x13,
+					 0x00);
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xf9,
+					 0x44, 0x3f, 0x00, 0x8d, 0xbf);
+	mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xce,
+					 0x5d, 0x00, 0x0f, 0x1f, 0x2f, 0x3f,
+					 0x4f, 0x5f, 0x6f, 0x7f, 0x8f, 0x9f,
+					 0xaf, 0xbf, 0xcf, 0xdf, 0xef, 0xff,
+					 0x04, 0x00, 0x02, 0x02, 0x42, 0x01,
+					 0x69, 0x5a, 0x40, 0x40, 0x00, 0x00,
+					 0x04, 0xfa, 0x00);
+	mipi_dsi_dcs_set_display_brightness_multi(&dsi_ctx, 0x00b8);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY,
+				     0x2c);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_POWER_SAVE, 0x00);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x03);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x11, 0x00);
+	mipi_dsi_msleep(&dsi_ctx, 96);
+	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x29, 0x00);
+	mipi_dsi_msleep(&dsi_ctx, 20);
+
+	return dsi_ctx.accum_err;
+}
+
+static int boe_td4320_off(struct boe_td4320 *ctx)
+{
+	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
+
+	ctx->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 20);
+	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
+	mipi_dsi_msleep(&dsi_ctx, 120);
+
+	return dsi_ctx.accum_err;
+}
+
+static int boe_td4320_prepare(struct drm_panel *panel)
+{
+	struct boe_td4320 *ctx = to_boe_td4320(panel);
+	struct device *dev = &ctx->dsi->dev;
+	int ret;
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(boe_td4320_supplies), ctx->supplies);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enable regulators: %d\n", ret);
+		return ret;
+	}
+
+	boe_td4320_reset(ctx);
+
+	ret = boe_td4320_on(ctx);
+	if (ret < 0) {
+		dev_err(dev, "Failed to initialize panel: %d\n", ret);
+		gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+		regulator_bulk_disable(ARRAY_SIZE(boe_td4320_supplies), ctx->supplies);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int boe_td4320_unprepare(struct drm_panel *panel)
+{
+	struct boe_td4320 *ctx = to_boe_td4320(panel);
+	struct device *dev = &ctx->dsi->dev;
+	int ret;
+
+	ret = boe_td4320_off(ctx);
+	if (ret < 0)
+		dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
+
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	regulator_bulk_disable(ARRAY_SIZE(boe_td4320_supplies), ctx->supplies);
+
+	return 0;
+}
+
+static const struct drm_display_mode boe_td4320_mode = {
+	.clock = (1080 + 86 + 2 + 100) * (2340 + 4 + 4 + 60) * 60 / 1000,
+	.hdisplay = 1080,
+	.hsync_start = 1080 + 86,
+	.hsync_end = 1080 + 86 + 2,
+	.htotal = 1080 + 86 + 2 + 100,
+	.vdisplay = 2340,
+	.vsync_start = 2340 + 4,
+	.vsync_end = 2340 + 4 + 4,
+	.vtotal = 2340 + 4 + 4 + 60,
+	.width_mm = 67,
+	.height_mm = 145,
+	.type = DRM_MODE_TYPE_DRIVER,
+};
+
+static int boe_td4320_get_modes(struct drm_panel *panel,
+				struct drm_connector *connector)
+{
+	return drm_connector_helper_get_modes_fixed(connector, &boe_td4320_mode);
+}
+
+static const struct drm_panel_funcs boe_td4320_panel_funcs = {
+	.prepare = boe_td4320_prepare,
+	.unprepare = boe_td4320_unprepare,
+	.get_modes = boe_td4320_get_modes,
+};
+
+static int boe_td4320_probe(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	struct boe_td4320 *ctx;
+	int ret;
+
+	ctx = devm_drm_panel_alloc(dev, struct boe_td4320, panel,
+				   &boe_td4320_panel_funcs,
+				   DRM_MODE_CONNECTOR_DSI);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
+
+	ret = devm_regulator_bulk_get_const(dev,
+					    ARRAY_SIZE(boe_td4320_supplies),
+					    boe_td4320_supplies,
+					    &ctx->supplies);
+	if (ret < 0)
+		return ret;
+
+	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(ctx->reset_gpio))
+		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
+				     "Failed to get reset-gpios\n");
+
+	ctx->dsi = dsi;
+	mipi_dsi_set_drvdata(dsi, ctx);
+
+	dsi->lanes = 4;
+	dsi->format = MIPI_DSI_FMT_RGB888;
+	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
+			  MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+	ctx->panel.prepare_prev_first = true;
+
+	ret = drm_panel_of_backlight(&ctx->panel);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to get backlight\n");
+
+	drm_panel_add(&ctx->panel);
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret < 0) {
+		drm_panel_remove(&ctx->panel);
+		return dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
+	}
+
+	return 0;
+}
+
+static void boe_td4320_remove(struct mipi_dsi_device *dsi)
+{
+	struct boe_td4320 *ctx = mipi_dsi_get_drvdata(dsi);
+	int ret;
+
+	ret = mipi_dsi_detach(dsi);
+	if (ret < 0)
+		dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
+
+	drm_panel_remove(&ctx->panel);
+}
+
+static const struct of_device_id boe_td4320_of_match[] = {
+	{ .compatible = "boe,td4320" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, boe_td4320_of_match);
+
+static struct mipi_dsi_driver boe_td4320_driver = {
+	.probe = boe_td4320_probe,
+	.remove = boe_td4320_remove,
+	.driver = {
+		.name = "panel-boe-td4320",
+		.of_match_table = boe_td4320_of_match,
+	},
+};
+module_mipi_dsi_driver(boe_td4320_driver);
+
+MODULE_AUTHOR("Barnabas Czeman <[e-mail]>");
+MODULE_DESCRIPTION("DRM driver for boe td4320 fhdplus video mode dsi panel");
+MODULE_LICENSE("GPL");

drivers/gpu/drm/panel/panel-edp.c

···
 	.enable = 50,
 };
 
+static const struct panel_delay delay_80_500_e80_p2e200 = {
+	.hpd_absent = 80,
+	.unprepare = 500,
+	.enable = 80,
+	.prepare_to_enable = 200,
+};
+
 static const struct panel_delay delay_100_500_e200 = {
 	.hpd_absent = 100,
 	.unprepare = 500,
···
 	EDP_PANEL_ENTRY('A', 'U', 'O', 0xa199, &delay_200_500_e50, "B116XAN06.1"),
 	EDP_PANEL_ENTRY('A', 'U', 'O', 0xa7b3, &delay_200_500_e50, "B140UAN04.4"),
 	EDP_PANEL_ENTRY('A', 'U', 'O', 0xc4b4, &delay_200_500_e50, "B116XAT04.1"),
+	EDP_PANEL_ENTRY('A', 'U', 'O', 0xc9a8, &delay_200_500_e50, "B140QAN08.H"),
 	EDP_PANEL_ENTRY('A', 'U', 'O', 0xd497, &delay_200_500_e50, "B120XAN01.0"),
 	EDP_PANEL_ENTRY('A', 'U', 'O', 0xf390, &delay_200_500_e50, "B140XTN07.7"),
 
···
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0c93, &delay_200_500_e200, "Unknown"),
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0cb6, &delay_200_500_e200, "NT116WHM-N44"),
 	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0cfa, &delay_200_500_e50, "NV116WHM-A4D"),
+	EDP_PANEL_ENTRY('B', 'O', 'E', 0x0d73, &delay_200_500_e80, "NE140WUM-N6S"),
 
 	EDP_PANEL_ENTRY('C', 'M', 'N', 0x1130, &delay_200_500_e50, "N116BGE-EB2"),
 	EDP_PANEL_ENTRY('C', 'M', 'N', 0x1132, &delay_200_500_e80_d50, "N116BGE-EA2"),
···
 	EDP_PANEL_ENTRY('C', 'S', 'W', 0x1103, &delay_200_500_e80_d50, "MNB601LS1-3"),
 	EDP_PANEL_ENTRY('C', 'S', 'W', 0x1104, &delay_200_500_e50, "MNB601LS1-4"),
 	EDP_PANEL_ENTRY('C', 'S', 'W', 0x1448, &delay_200_500_e50, "MNE007QS3-7"),
+	EDP_PANEL_ENTRY('C', 'S', 'W', 0x1457, &delay_80_500_e80_p2e200, "MNE007QS3-8"),
 
 	EDP_PANEL_ENTRY('E', 'T', 'C', 0x0000, &delay_50_500_e200_d200_po2e335, "LP079QX1-SP0V"),
 

drivers/gpu/drm/panel/panel-simple.c

···
 	},
 };
 
-static const struct drm_display_mode auo_g101evn010_mode = {
-	.clock = 68930,
-	.hdisplay = 1280,
-	.hsync_start = 1280 + 82,
-	.hsync_end = 1280 + 82 + 2,
-	.htotal = 1280 + 82 + 2 + 84,
-	.vdisplay = 800,
-	.vsync_start = 800 + 8,
-	.vsync_end = 800 + 8 + 2,
-	.vtotal = 800 + 8 + 2 + 6,
+static const struct display_timing auo_g101evn010_timing = {
+	.pixelclock = { 64000000, 68930000, 85000000 },
+	.hactive = { 1280, 1280, 1280 },
+	.hfront_porch = { 8, 64, 256 },
+	.hback_porch = { 8, 64, 256 },
+	.hsync_len = { 40, 168, 767 },
+	.vactive = { 800, 800, 800 },
+	.vfront_porch = { 4, 8, 100 },
+	.vback_porch = { 4, 8, 100 },
+	.vsync_len = { 8, 16, 223 },
 };
 
 static const struct panel_desc auo_g101evn010 = {
-	.modes = &auo_g101evn010_mode,
-	.num_modes = 1,
+	.timings = &auo_g101evn010_timing,
+	.num_timings = 1,
 	.bpc = 6,
 	.size = {
 		.width = 216,
 		.height = 135,
 	},
 	.bus_format = MEDIA_BUS_FMT_RGB666_1X7X3_SPWG,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH,
 	.connector_type = DRM_MODE_CONNECTOR_LVDS,
 };
 

drivers/gpu/drm/panthor/panthor_gem.c

···
 	mutex_unlock(&ptdev->gems.lock);
 }
 
+static void panthor_gem_debugfs_set_usage_flags(struct panthor_gem_object *bo, u32 usage_flags)
+{
+	bo->debugfs.flags = usage_flags | PANTHOR_DEBUGFS_GEM_USAGE_FLAG_INITIALIZED;
+}
 #else
 static void panthor_gem_debugfs_bo_add(struct panthor_device *ptdev,
 				       struct panthor_gem_object *bo)
 {}
 static void panthor_gem_debugfs_bo_rm(struct panthor_gem_object *bo) {}
+static void panthor_gem_debugfs_set_usage_flags(struct panthor_gem_object *bo, u32 usage_flags) {}
 #endif
 
 static void panthor_gem_free_object(struct drm_gem_object *obj)

drivers/gpu/drm/panthor/panthor_gem.h

···
 #ifdef CONFIG_DEBUG_FS
 void panthor_gem_debugfs_print_bos(struct panthor_device *pfdev,
 				   struct seq_file *m);
-static inline void
-panthor_gem_debugfs_set_usage_flags(struct panthor_gem_object *bo, u32 usage_flags)
-{
-	bo->debugfs.flags = usage_flags | PANTHOR_DEBUGFS_GEM_USAGE_FLAG_INITIALIZED;
-}
-
-#else
-void panthor_gem_debugfs_set_usage_flags(struct panthor_gem_object *bo, u32 usage_flags) {};
 #endif
 
 #endif /* __PANTHOR_GEM_H__ */

drivers/gpu/drm/renesas/rcar-du/rcar_cmm.c

···
 	} lut;
 };
 
-static inline int rcar_cmm_read(struct rcar_cmm *rcmm, u32 reg)
-{
-	return ioread32(rcmm->base + reg);
-}
-
 static inline void rcar_cmm_write(struct rcar_cmm *rcmm, u32 reg, u32 data)
 {
 	iowrite32(data, rcmm->base + reg);

drivers/gpu/drm/renesas/rcar-du/rcar_du_kms.c

···
 		ret = of_parse_phandle_with_fixed_args(np, vsps_prop_name,
 						       cells, i, &args);
 		if (ret < 0)
-			goto error;
+			goto done;
 
 		/*
 		 * Add the VSP to the list or update the corresponding existing
···
 		vsp->dev = rcdu;
 
 		ret = rcar_du_vsp_init(vsp, vsps[i].np, vsps[i].crtcs_mask);
-		if (ret < 0)
-			goto error;
+		if (ret)
+			goto done;
 	}
 
-	return 0;
-
-error:
+done:
 	for (i = 0; i < ARRAY_SIZE(vsps); ++i)
 		of_node_put(vsps[i].np);
 

drivers/gpu/drm/rockchip/Kconfig

···
 config DRM_ROCKCHIP
 	tristate "DRM Support for Rockchip"
 	depends on DRM && ROCKCHIP_IOMMU
+	depends on OF
 	select DRM_CLIENT_SELECTION
 	select DRM_GEM_DMA_HELPER
 	select DRM_KMS_HELPER

drivers/gpu/drm/rockchip/inno_hdmi.c

···
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/hdmi.h>
+#include <linux/mfd/syscon.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/platform_device.h>
+#include <linux/regmap.h>
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
···
 
 #include "inno_hdmi.h"
 
+#define HIWORD_UPDATE(val, mask)	((val) | (mask) << 16)
+
 #define INNO_HDMI_MIN_TMDS_CLOCK  25000000U
+
+#define RK3036_GRF_SOC_CON2	0x148
+#define RK3036_HDMI_PHSYNC	BIT(4)
+#define RK3036_HDMI_PVSYNC	BIT(5)
+
+enum inno_hdmi_dev_type {
+	RK3036_HDMI,
+	RK3128_HDMI,
+};
 
 struct inno_hdmi_phy_config {
 	unsigned long pixelclock;
···
 };
 
 struct inno_hdmi_variant {
+	enum inno_hdmi_dev_type dev_type;
 	struct inno_hdmi_phy_config *phy_configs;
 	struct inno_hdmi_phy_config *default_phy_config;
 };
···
 	struct clk *pclk;
 	struct clk *refclk;
 	void __iomem *regs;
+	struct regmap *grf;
 
 	struct drm_connector	connector;
 	struct rockchip_encoder	encoder;
···
 static int inno_hdmi_config_video_timing(struct inno_hdmi *hdmi,
 					 struct drm_display_mode *mode)
 {
-	int value;
+	int value, psync;
+
+	if (hdmi->variant->dev_type == RK3036_HDMI) {
+		psync = mode->flags & DRM_MODE_FLAG_PHSYNC ? RK3036_HDMI_PHSYNC : 0;
+		value = HIWORD_UPDATE(psync, RK3036_HDMI_PHSYNC);
+		psync = mode->flags & DRM_MODE_FLAG_PVSYNC ? RK3036_HDMI_PVSYNC : 0;
+		value |= HIWORD_UPDATE(psync, RK3036_HDMI_PVSYNC);
+		regmap_write(hdmi->grf, RK3036_GRF_SOC_CON2, value);
+	}
 
 	/* Set detail external video timing polarity and interlace mode */
 	value = v_EXTERANL_VIDEO(1);
···
 		return PTR_ERR(hdmi->regs);
 
 	hdmi->pclk = devm_clk_get(hdmi->dev, "pclk");
-	if (IS_ERR(hdmi->pclk)) {
-		DRM_DEV_ERROR(hdmi->dev, "Unable to get HDMI pclk clk\n");
-		return PTR_ERR(hdmi->pclk);
-	}
+	if (IS_ERR(hdmi->pclk))
+		return dev_err_probe(dev, PTR_ERR(hdmi->pclk), "Unable to get HDMI pclk\n");
 
 	ret = clk_prepare_enable(hdmi->pclk);
-	if (ret) {
-		DRM_DEV_ERROR(hdmi->dev,
-			      "Cannot enable HDMI pclk clock: %d\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "Cannot enable HDMI pclk: %d\n", ret);
 
 	hdmi->refclk = devm_clk_get_optional(hdmi->dev, "ref");
 	if (IS_ERR(hdmi->refclk)) {
-		DRM_DEV_ERROR(hdmi->dev, "Unable to get HDMI reference clock\n");
-		ret = PTR_ERR(hdmi->refclk);
+		ret = dev_err_probe(dev, PTR_ERR(hdmi->refclk), "Unable to get HDMI refclk\n");
 		goto err_disable_pclk;
 	}
 
 	ret = clk_prepare_enable(hdmi->refclk);
 	if (ret) {
-		DRM_DEV_ERROR(hdmi->dev,
-			      "Cannot enable HDMI reference clock: %d\n", ret);
+		ret = dev_err_probe(dev, ret, "Cannot enable HDMI refclk: %d\n", ret);
 		goto err_disable_pclk;
+	}
+
+	if (hdmi->variant->dev_type == RK3036_HDMI) {
+		hdmi->grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,grf");
+		if (IS_ERR(hdmi->grf)) {
+			ret = dev_err_probe(dev, PTR_ERR(hdmi->grf),
+					    "Unable to get rockchip,grf\n");
+			goto err_disable_clk;
+		}
 	}
 
 	irq = platform_get_irq(pdev, 0);
···
 }
 
 static const struct inno_hdmi_variant rk3036_inno_hdmi_variant = {
+	.dev_type = RK3036_HDMI,
 	.phy_configs = rk3036_hdmi_phy_configs,
 	.default_phy_config = &rk3036_hdmi_phy_configs[1],
 };
 
 static const struct inno_hdmi_variant rk3128_inno_hdmi_variant = {
+	.dev_type = RK3128_HDMI,
 	.phy_configs = rk3128_hdmi_phy_configs,
 	.default_phy_config = &rk3128_hdmi_phy_configs[1],
 };

drivers/gpu/drm/rockchip/rk3066_hdmi.c

···
  */
 
 #include <drm/drm_atomic.h>
+#include <drm/drm_bridge_connector.h>
+#include <drm/display/drm_hdmi_helper.h>
+#include <drm/display/drm_hdmi_state_helper.h>
 #include <drm/drm_edid.h>
 #include <drm/drm_of.h>
 #include <drm/drm_probe_helper.h>
···
 	struct clk *hclk;
 	void __iomem *regs;
 
-	struct drm_connector connector;
+	struct drm_bridge bridge;
+	struct drm_connector *connector;
 	struct rockchip_encoder encoder;
 
 	struct rk3066_hdmi_i2c *i2c;
-	struct i2c_adapter *ddc;
 
 	unsigned int tmdsclk;
 
 	struct hdmi_data_info hdmi_data;
 };
 
-static struct rk3066_hdmi *encoder_to_rk3066_hdmi(struct drm_encoder *encoder)
+static struct rk3066_hdmi *bridge_to_rk3066_hdmi(struct drm_bridge *bridge)
 {
-	struct rockchip_encoder *rkencoder = to_rockchip_encoder(encoder);
-
-	return container_of(rkencoder, struct rk3066_hdmi, encoder);
-}
-
-static struct rk3066_hdmi *connector_to_rk3066_hdmi(struct drm_connector *connector)
-{
-	return container_of(connector, struct rk3066_hdmi, connector);
+	return container_of(bridge, struct rk3066_hdmi, bridge);
 }
 
 static inline u8 hdmi_readb(struct rk3066_hdmi *hdmi, u16 offset)
···
 		hdmi->tmdsclk = DEFAULT_PLLA_RATE;
 }
 
-static int
-rk3066_hdmi_upload_frame(struct rk3066_hdmi *hdmi, int setup_rc,
-			 union hdmi_infoframe *frame, u32 frame_index,
-			 u32 mask, u32 disable, u32 enable)
+static int rk3066_hdmi_bridge_clear_infoframe(struct drm_bridge *bridge,
+					      enum hdmi_infoframe_type type)
 {
-	if (mask)
-		hdmi_modb(hdmi, HDMI_CP_AUTO_SEND_CTRL, mask, disable);
+	struct rk3066_hdmi *hdmi = bridge_to_rk3066_hdmi(bridge);
 
-	hdmi_writeb(hdmi, HDMI_CP_BUF_INDEX, frame_index);
-
-	if (setup_rc >= 0) {
-		u8 packed_frame[HDMI_MAXIMUM_INFO_FRAME_SIZE];
-		ssize_t rc, i;
-
-		rc = hdmi_infoframe_pack(frame, packed_frame,
-					 sizeof(packed_frame));
-		if (rc < 0)
-			return rc;
-
-		for (i = 0; i < rc; i++)
-			hdmi_writeb(hdmi, HDMI_CP_BUF_ACC_HB0 + i * 4,
-				    packed_frame[i]);
-
-		if (mask)
-			hdmi_modb(hdmi, HDMI_CP_AUTO_SEND_CTRL, mask, enable);
+	if (type != HDMI_INFOFRAME_TYPE_AVI) {
+		drm_err(bridge->dev, "Unsupported infoframe type: %u\n", type);
+		return 0;
 	}
 
-	return setup_rc;
+	hdmi_writeb(hdmi, HDMI_CP_BUF_INDEX, HDMI_INFOFRAME_AVI);
+
+	return 0;
 }
 
-static int rk3066_hdmi_config_avi(struct rk3066_hdmi *hdmi,
-				  struct drm_display_mode *mode)
+static int
+rk3066_hdmi_bridge_write_infoframe(struct drm_bridge *bridge,
+				   enum hdmi_infoframe_type type,
+				   const u8 *buffer, size_t len)
 {
-	union hdmi_infoframe frame;
-	int rc;
+	struct rk3066_hdmi *hdmi = bridge_to_rk3066_hdmi(bridge);
+	ssize_t i;
 
-	rc = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
-						      &hdmi->connector, mode);
+	if (type != HDMI_INFOFRAME_TYPE_AVI) {
+		drm_err(bridge->dev, "Unsupported infoframe type: %u\n", type);
+		return 0;
+	}
 
-	if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV444)
-		frame.avi.colorspace = HDMI_COLORSPACE_YUV444;
-	else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV422)
-		frame.avi.colorspace = HDMI_COLORSPACE_YUV422;
-	else
-		frame.avi.colorspace = HDMI_COLORSPACE_RGB;
+	rk3066_hdmi_bridge_clear_infoframe(bridge, type);
 
-	frame.avi.colorimetry = hdmi->hdmi_data.colorimetry;
-	frame.avi.scan_mode = HDMI_SCAN_MODE_NONE;
+	for (i = 0; i < len; i++)
+		hdmi_writeb(hdmi, HDMI_CP_BUF_ACC_HB0 + i * 4, buffer[i]);
 
-	return rk3066_hdmi_upload_frame(hdmi, rc, &frame,
-					HDMI_INFOFRAME_AVI, 0, 0, 0);
+	return 0;
 }
 
 static int rk3066_hdmi_config_video_timing(struct rk3066_hdmi *hdmi,
···
 }
 
 static int rk3066_hdmi_setup(struct rk3066_hdmi *hdmi,
-			     struct drm_display_mode *mode)
+			     struct drm_atomic_state *state)
 {
-	struct drm_display_info *display = &hdmi->connector.display_info;
+	struct drm_bridge *bridge = &hdmi->bridge;
+	struct drm_connector *connector;
+	struct drm_display_info *display;
+	struct drm_display_mode *mode;
+	struct drm_connector_state *new_conn_state;
+	struct drm_crtc_state *new_crtc_state;
+
+	connector = drm_atomic_get_new_connector_for_encoder(state, bridge->encoder);
+
+	new_conn_state = drm_atomic_get_new_connector_state(state, connector);
+	if (WARN_ON(!new_conn_state))
+		return -EINVAL;
+
+	new_crtc_state = drm_atomic_get_new_crtc_state(state, new_conn_state->crtc);
+	if (WARN_ON(!new_crtc_state))
+		return -EINVAL;
+
+	display = &connector->display_info;
+	mode = &new_crtc_state->adjusted_mode;
 
 	hdmi->hdmi_data.vic = drm_match_cea_mode(mode);
 	hdmi->hdmi_data.enc_out_format = HDMI_COLORSPACE_RGB;
···
 	if (display->is_hdmi) {
 		hdmi_modb(hdmi, HDMI_HDCP_CTRL, HDMI_VIDEO_MODE_MASK,
 			  HDMI_VIDEO_MODE_HDMI);
-		rk3066_hdmi_config_avi(hdmi, mode);
+		drm_atomic_helper_connector_hdmi_update_infoframes(connector, state);
 	} else {
 		hdmi_modb(hdmi, HDMI_HDCP_CTRL, HDMI_VIDEO_MODE_MASK, 0);
 	}
···
 	return 0;
 }
 
-static void rk3066_hdmi_encoder_enable(struct drm_encoder *encoder,
-				       struct drm_atomic_state *state)
+static void rk3066_hdmi_bridge_atomic_enable(struct drm_bridge *bridge,
+					     struct drm_atomic_state *state)
 {
-	struct rk3066_hdmi *hdmi = encoder_to_rk3066_hdmi(encoder);
+	struct rk3066_hdmi *hdmi = bridge_to_rk3066_hdmi(bridge);
 	struct drm_connector_state *conn_state;
 	struct drm_crtc_state *crtc_state;
 	int mux, val;
 
-	conn_state = drm_atomic_get_new_connector_state(state, &hdmi->connector);
+	conn_state = drm_atomic_get_new_connector_state(state, hdmi->connector);
 	if (WARN_ON(!conn_state))
 		return;
 
···
 	if (WARN_ON(!crtc_state))
 		return;
 
-	mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
+	mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, &hdmi->encoder.encoder);
 	if (mux)
 		val = (HDMI_VIDEO_SEL << 16) | HDMI_VIDEO_SEL;
 	else
···
 	DRM_DEV_DEBUG(hdmi->dev, "hdmi encoder enable select: vop%s\n",
 		      (mux) ? "1" : "0");
 
-	rk3066_hdmi_setup(hdmi, &crtc_state->adjusted_mode);
+	rk3066_hdmi_setup(hdmi, state);
 }
 
-static void rk3066_hdmi_encoder_disable(struct drm_encoder *encoder,
-					struct drm_atomic_state *state)
+static void rk3066_hdmi_bridge_atomic_disable(struct drm_bridge *bridge,
+					      struct drm_atomic_state *state)
 {
-	struct rk3066_hdmi *hdmi = encoder_to_rk3066_hdmi(encoder);
+	struct rk3066_hdmi *hdmi = bridge_to_rk3066_hdmi(bridge);
 
 	DRM_DEV_DEBUG(hdmi->dev, "hdmi encoder disable\n");
 
···
 static const
 struct drm_encoder_helper_funcs rk3066_hdmi_encoder_helper_funcs = {
 	.atomic_check   = rk3066_hdmi_encoder_atomic_check,
-	.atomic_enable  = rk3066_hdmi_encoder_enable,
-	.atomic_disable = rk3066_hdmi_encoder_disable,
 };
 
 static enum drm_connector_status
-rk3066_hdmi_connector_detect(struct drm_connector *connector, bool force)
+rk3066_hdmi_bridge_detect(struct drm_bridge *bridge)
 {
-	struct rk3066_hdmi *hdmi = connector_to_rk3066_hdmi(connector);
+	struct rk3066_hdmi *hdmi = bridge_to_rk3066_hdmi(bridge);
 
 	return (hdmi_readb(hdmi, HDMI_HPG_MENS_STA) & HDMI_HPG_IN_STATUS_HIGH) ?
 		connector_status_connected : connector_status_disconnected;
 }
 
-static int rk3066_hdmi_connector_get_modes(struct drm_connector *connector)
+static const struct drm_edid *
+rk3066_hdmi_bridge_edid_read(struct drm_bridge *bridge, struct drm_connector *connector)
 {
-	struct rk3066_hdmi *hdmi = connector_to_rk3066_hdmi(connector);
+	struct rk3066_hdmi *hdmi = bridge_to_rk3066_hdmi(bridge);
 	const struct drm_edid *drm_edid;
-	int ret = 0;
 
-	if (!hdmi->ddc)
-		return 0;
+	drm_edid = drm_edid_read_ddc(connector, bridge->ddc);
+	if (!drm_edid)
+		dev_dbg(hdmi->dev, "failed to get edid\n");
 
-	drm_edid = drm_edid_read_ddc(connector, hdmi->ddc);
-	drm_edid_connector_update(connector, drm_edid);
-	ret = drm_edid_connector_add_modes(connector);
-	drm_edid_free(drm_edid);
-
-	return ret;
+	return drm_edid;
 }
 
 static enum drm_mode_status
-rk3066_hdmi_connector_mode_valid(struct drm_connector *connector,
-				 const struct drm_display_mode *mode)
+rk3066_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
+			      const struct drm_display_info *info,
+			      const struct drm_display_mode *mode)
 {
 	u32 vic = drm_match_cea_mode(mode);
 
···
 		return MODE_BAD;
 }
 
-static struct drm_encoder *
-rk3066_hdmi_connector_best_encoder(struct drm_connector *connector)
-{
-	struct rk3066_hdmi *hdmi = connector_to_rk3066_hdmi(connector);
-
-	return &hdmi->encoder.encoder;
-}
-
-static int
-rk3066_hdmi_probe_single_connector_modes(struct drm_connector *connector,
-					 uint32_t maxX, uint32_t maxY)
-{
-	if (maxX > 1920)
-		maxX = 1920;
-	if (maxY > 1080)
-		maxY = 1080;
-
-	return drm_helper_probe_single_connector_modes(connector, maxX, maxY);
-}
-
-static void rk3066_hdmi_connector_destroy(struct drm_connector *connector)
-{
-	drm_connector_unregister(connector);
-	drm_connector_cleanup(connector);
-}
-
-static const struct drm_connector_funcs rk3066_hdmi_connector_funcs = {
-	.fill_modes = rk3066_hdmi_probe_single_connector_modes,
-	.detect = rk3066_hdmi_connector_detect,
-	.destroy = rk3066_hdmi_connector_destroy,
-	.reset = drm_atomic_helper_connector_reset,
-	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
-	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+static const struct drm_bridge_funcs rk3066_hdmi_bridge_funcs = {
+	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+	.atomic_reset = drm_atomic_helper_bridge_reset,
+	.atomic_enable = rk3066_hdmi_bridge_atomic_enable,
+	.atomic_disable = rk3066_hdmi_bridge_atomic_disable,
+	.detect = rk3066_hdmi_bridge_detect,
+	.edid_read = rk3066_hdmi_bridge_edid_read,
+	.hdmi_clear_infoframe = rk3066_hdmi_bridge_clear_infoframe,
+	.hdmi_write_infoframe = rk3066_hdmi_bridge_write_infoframe,
+	.mode_valid = rk3066_hdmi_bridge_mode_valid,
 };
 
-static const
-struct drm_connector_helper_funcs rk3066_hdmi_connector_helper_funcs = {
-	.get_modes = rk3066_hdmi_connector_get_modes,
-	.mode_valid = rk3066_hdmi_connector_mode_valid,
-	.best_encoder = rk3066_hdmi_connector_best_encoder,
-};
-
-static int
-rk3066_hdmi_register(struct drm_device *drm, struct rk3066_hdmi *hdmi)
-{
-	struct drm_encoder *encoder = &hdmi->encoder.encoder;
-	struct device *dev = hdmi->dev;
-
-	encoder->possible_crtcs =
-		drm_of_find_possible_crtcs(drm, dev->of_node);
-
-	/*
-	 * If we failed to find the CRTC(s) which this encoder is
-	 * supposed to be connected to, it's because the CRTC has
-	 * not been registered yet.  Defer probing, and hope that
-	 * the required CRTC is added later.
-	 */
-	if (encoder->possible_crtcs == 0)
-		return -EPROBE_DEFER;
-
-	drm_encoder_helper_add(encoder, &rk3066_hdmi_encoder_helper_funcs);
-	drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS);
-
-	hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
-
-	drm_connector_helper_add(&hdmi->connector,
-				 &rk3066_hdmi_connector_helper_funcs);
-	drm_connector_init_with_ddc(drm, &hdmi->connector,
-				    &rk3066_hdmi_connector_funcs,
-				    DRM_MODE_CONNECTOR_HDMIA,
-				    hdmi->ddc);
-
-	drm_connector_attach_encoder(&hdmi->connector, encoder);
-
-	return 0;
-}
 
 static irqreturn_t rk3066_hdmi_hardirq(int irq, void *dev_id)
 {
···
 {
 	struct rk3066_hdmi *hdmi = dev_id;
 
-	drm_helper_hpd_irq_event(hdmi->connector.dev);
+	drm_helper_hpd_irq_event(hdmi->connector->dev);
 
 	return IRQ_HANDLED;
 }
···
 	strscpy(adap->name, "RK3066 HDMI", sizeof(adap->name));
 	i2c_set_adapdata(adap, hdmi);
 
-	ret = i2c_add_adapter(adap);
+	ret = devm_i2c_add_adapter(hdmi->dev, adap);
 	if (ret) {
 		DRM_DEV_ERROR(hdmi->dev, "cannot add %s I2C adapter\n",
 			      adap->name);
···
 	DRM_DEV_DEBUG(hdmi->dev, "registered %s I2C bus driver\n", adap->name);
 
 	return adap;
+}
+
+static int
+rk3066_hdmi_register(struct drm_device *drm, struct rk3066_hdmi *hdmi)
+{
+	struct drm_encoder *encoder = &hdmi->encoder.encoder;
+	struct device *dev = hdmi->dev;
+	int ret;
+
+	encoder->possible_crtcs =
+		drm_of_find_possible_crtcs(drm, dev->of_node);
+
+	/*
+	 * If we failed to find the CRTC(s) which this encoder is
+	 * supposed to be connected to, it's because the CRTC has
+	 * not been registered yet.  Defer probing, and hope that
+	 * the required CRTC is added later.
+	 */
+	if (encoder->possible_crtcs == 0)
+		return -EPROBE_DEFER;
+
+	drm_encoder_helper_add(encoder, &rk3066_hdmi_encoder_helper_funcs);
+	drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS);
+
+	hdmi->bridge.driver_private = hdmi;
+	hdmi->bridge.funcs = &rk3066_hdmi_bridge_funcs;
+	hdmi->bridge.ops = DRM_BRIDGE_OP_DETECT |
+			   DRM_BRIDGE_OP_EDID |
+			   DRM_BRIDGE_OP_HDMI |
+			   DRM_BRIDGE_OP_HPD;
+	hdmi->bridge.of_node = hdmi->dev->of_node;
+	hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
+	hdmi->bridge.vendor = "Rockchip";
+	hdmi->bridge.product = "RK3066 HDMI";
+
+	hdmi->bridge.ddc = rk3066_hdmi_i2c_adapter(hdmi);
+	if (IS_ERR(hdmi->bridge.ddc))
+		return PTR_ERR(hdmi->bridge.ddc);
+
+	if (IS_ERR(hdmi->bridge.ddc))
+		return PTR_ERR(hdmi->bridge.ddc);
+
+	ret = devm_drm_bridge_add(dev, &hdmi->bridge);
+	if (ret)
+		return ret;
+
+	ret = drm_bridge_attach(encoder, &hdmi->bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
+	if (ret)
+		return ret;
+
+	hdmi->connector = drm_bridge_connector_init(drm, encoder);
+	if (IS_ERR(hdmi->connector)) {
+		ret = PTR_ERR(hdmi->connector);
+		dev_err(hdmi->dev, "failed to init bridge connector: %d\n", ret);
+		return ret;
+	}
+
+	drm_connector_attach_encoder(hdmi->connector, encoder);
+
+	return 0;
 }
 
 static int rk3066_hdmi_bind(struct device *dev, struct device *master,
···
 	/* internal hclk = hdmi_hclk / 25 */
 	hdmi_writeb(hdmi, HDMI_INTERNAL_CLK_DIVIDER, 25);
 
-	hdmi->ddc = rk3066_hdmi_i2c_adapter(hdmi);
-	if (IS_ERR(hdmi->ddc)) {
-		ret = PTR_ERR(hdmi->ddc);
-		hdmi->ddc = NULL;
-		goto err_disable_hclk;
-	}
-
 	rk3066_hdmi_set_power_mode(hdmi, HDMI_SYS_POWER_MODE_B);
 	usleep_range(999, 1000);
 	hdmi_writeb(hdmi, HDMI_INTR_MASK1, HDMI_INTR_HOTPLUG);
···
 
 	ret = rk3066_hdmi_register(drm, hdmi);
 	if (ret)
-		goto err_disable_i2c;
+		goto err_disable_hclk;
 
 	dev_set_drvdata(dev, hdmi);
 
···
 	return 0;
 
 err_cleanup_hdmi:
-	hdmi->connector.funcs->destroy(&hdmi->connector);
 	hdmi->encoder.encoder.funcs->destroy(&hdmi->encoder.encoder);
-err_disable_i2c:
-	i2c_put_adapter(hdmi->ddc);
 err_disable_hclk:
 	clk_disable_unprepare(hdmi->hclk);
 
···
 {
 	struct rk3066_hdmi *hdmi = dev_get_drvdata(dev);
 
-	hdmi->connector.funcs->destroy(&hdmi->connector);
 	hdmi->encoder.encoder.funcs->destroy(&hdmi->encoder.encoder);
 
-	i2c_put_adapter(hdmi->ddc);
 	clk_disable_unprepare(hdmi->hclk);
 }
 

drivers/gpu/drm/tegra/dc.c

···
 		if (wgrp->dc == dc->pipe) {
 			for (j = 0; j < wgrp->num_windows; j++) {
 				unsigned int index = wgrp->windows[j];
+				enum drm_plane_type type;
+
+				if (primary)
+					type = DRM_PLANE_TYPE_OVERLAY;
+				else
+					type = DRM_PLANE_TYPE_PRIMARY;
 
 				plane = tegra_shared_plane_create(drm, dc,
 								  wgrp->index,
-								  index);
+								  index, type);
 				if (IS_ERR(plane))
 					return plane;
 
···
 				 * Choose the first shared plane owned by this
 				 * head as the primary plane.
 				 */
-				if (!primary) {
-					plane->type = DRM_PLANE_TYPE_PRIMARY;
+				if (!primary)
 					primary = plane;
-				}
 			}
 		}
 	}
···
 	if (crtc->state)
 		tegra_crtc_atomic_destroy_state(crtc, crtc->state);
 
-	__drm_atomic_helper_crtc_reset(crtc, &state->base);
+	if (state)
+		__drm_atomic_helper_crtc_reset(crtc, &state->base);
+	else
+		__drm_atomic_helper_crtc_reset(crtc, NULL);
 }
 
 static struct drm_crtc_state *

drivers/gpu/drm/tegra/dpaux.c

···
 
 	dpaux->vdd = devm_regulator_get_optional(&pdev->dev, "vdd");
 	if (IS_ERR(dpaux->vdd)) {
-		if (PTR_ERR(dpaux->vdd) != -ENODEV) {
-			if (PTR_ERR(dpaux->vdd) != -EPROBE_DEFER)
-				dev_err(&pdev->dev,
-					"failed to get VDD supply: %ld\n",
-					PTR_ERR(dpaux->vdd));
-
-			return PTR_ERR(dpaux->vdd);
-		}
+		if (PTR_ERR(dpaux->vdd) != -ENODEV)
+			return dev_err_probe(&pdev->dev, PTR_ERR(dpaux->vdd),
+					     "failed to get VDD supply\n");
 
 		dpaux->vdd = NULL;
 	}

drivers/gpu/drm/tegra/falcon.c

···
 				  (value == 0), 10, 100000);
 }
 
+static int falcon_dma_wait_not_full(struct falcon *falcon)
+{
+	u32 value;
+
+	return readl_poll_timeout(falcon->regs + FALCON_DMATRFCMD, value,
+				  !(value & FALCON_DMATRFCMD_FULL), 10, 100000);
+}
+
 static int falcon_dma_wait_idle(struct falcon *falcon)
 {
 	u32 value;
···
 			     enum falcon_memory target)
 {
 	u32 cmd = FALCON_DMATRFCMD_SIZE_256B;
+	int err;
 
 	if (target == FALCON_MEMORY_IMEM)
 		cmd |= FALCON_DMATRFCMD_IMEM;
···
 	 */
 	cmd |= FALCON_DMATRFCMD_DMACTX(1);
 
+	err = falcon_dma_wait_not_full(falcon);
+	if (err < 0)
+		return err;
+
 	falcon_writel(falcon, offset, FALCON_DMATRFMOFFS);
 	falcon_writel(falcon, base, FALCON_DMATRFFBOFFS);
 	falcon_writel(falcon, cmd, FALCON_DMATRFCMD);
 
-	return falcon_dma_wait_idle(falcon);
+	return 0;
 }
 
 static void falcon_copy_firmware_image(struct falcon *falcon,
···
 	for (offset = 0; offset < falcon->firmware.code.size; offset += 256)
 		falcon_copy_chunk(falcon, falcon->firmware.code.offset + offset,
 				  offset, FALCON_MEMORY_IMEM);
+
+	/* wait for DMA to complete */
+	err = falcon_dma_wait_idle(falcon);
+	if (err < 0)
+		return err;
 
 	/* setup falcon interrupts */
 	falcon_writel(falcon, FALCON_IRQMSET_EXT(0xff) |

drivers/gpu/drm/tegra/falcon.h

···
 #define FALCON_DMATRFMOFFS			0x00001114
 
 #define FALCON_DMATRFCMD			0x00001118
+#define FALCON_DMATRFCMD_FULL			(1 << 0)
 #define FALCON_DMATRFCMD_IDLE			(1 << 1)
 #define FALCON_DMATRFCMD_IMEM			(1 << 4)
 #define FALCON_DMATRFCMD_SIZE_256B		(6 << 8)

drivers/gpu/drm/tegra/gem.c

···
 
 #include <drm/drm_drv.h>
 #include <drm/drm_prime.h>
-#include <drm/tegra_drm.h>
 
 #include "drm.h"
 #include "gem.h"

drivers/gpu/drm/tegra/hub.c

···
 struct drm_plane *tegra_shared_plane_create(struct drm_device *drm,
 					    struct tegra_dc *dc,
 					    unsigned int wgrp,
-					    unsigned int index)
+					    unsigned int index,
+					    enum drm_plane_type type)
 {
-	enum drm_plane_type type = DRM_PLANE_TYPE_OVERLAY;
 	struct tegra_drm *tegra = drm->dev_private;
 	struct tegra_display_hub *hub = tegra->hub;
 	struct tegra_shared_plane *plane;

drivers/gpu/drm/tegra/hub.h

···
 struct drm_plane *tegra_shared_plane_create(struct drm_device *drm,
 					    struct tegra_dc *dc,
 					    unsigned int wgrp,
-					    unsigned int index);
+					    unsigned int index,
+					    enum drm_plane_type type);
 
 int tegra_display_hub_atomic_check(struct drm_device *drm,
 				   struct drm_atomic_state *state);

drivers/gpu/drm/tegra/rgb.c

···
 	.atomic_check = tegra_rgb_encoder_atomic_check,
 };
 
+static void tegra_dc_of_node_put(void *data)
+{
+	of_node_put(data);
+}
+
 int tegra_dc_rgb_probe(struct tegra_dc *dc)
 {
 	struct device_node *np;
···
 	int err;
 
 	np = of_get_child_by_name(dc->dev->of_node, "rgb");
-	if (!np || !of_device_is_available(np))
+	if (!np)
+		return -ENODEV;
+
+	err = devm_add_action_or_reset(dc->dev, tegra_dc_of_node_put, np);
+	if (err < 0)
+		return err;
+
+	if (!of_device_is_available(np))
 		return -ENODEV;
 
 	rgb = devm_kzalloc(dc->dev, sizeof(*rgb), GFP_KERNEL);

drivers/gpu/drm/tiny/Kconfig

···
 config DRM_APPLETBDRM
 	tristate "DRM support for Apple Touch Bars"
 	depends on DRM && USB && MMU
+	depends on X86 || COMPILE_TEST
 	select DRM_GEM_SHMEM_HELPER
 	select DRM_KMS_HELPER
 	help

drivers/gpu/drm/tiny/st7571-i2c.c

···
 	st7571->hwbuf = devm_kzalloc(&client->dev,
 				     (st7571->nlines * st7571->ncols * st7571->bpp) / 8,
 				     GFP_KERNEL);
-	if (IS_ERR(st7571->hwbuf))
-		return dev_err_probe(&client->dev, PTR_ERR(st7571->hwbuf),
-				     "Failed to allocate intermediate buffer\n");
+	if (!st7571->hwbuf)
+		return -ENOMEM;
 
 	st7571->row = devm_kzalloc(&client->dev,
 				   (st7571->ncols * st7571->bpp),
 				   GFP_KERNEL);
-	if (IS_ERR(st7571->row))
-		return dev_err_probe(&client->dev, PTR_ERR(st7571->row),
-				     "Failed to allocate row buffer\n");
+	if (!st7571->row)
+		return -ENOMEM;
 
 	ret = st7571_mode_config_init(st7571);
 	if (ret)

drivers/gpu/drm/vkms/vkms_crtc.c

···
 		i++;
 	}
 
-	vkms_state->active_planes = kcalloc(i, sizeof(plane), GFP_KERNEL);
+	vkms_state->active_planes = kcalloc(i, sizeof(*vkms_state->active_planes), GFP_KERNEL);
 	if (!vkms_state->active_planes)
 		return -ENOMEM;
 	vkms_state->num_active_planes = i;

drivers/gpu/host1x/bus.c

···
 			     struct device_node *np)
 {
 	struct host1x_subdev *subdev;
-	struct device_node *child;
 	int err;
 
 	subdev = kzalloc(sizeof(*subdev), GFP_KERNEL);
···
 	mutex_unlock(&device->subdevs_lock);
 
 	/* recursively add children */
-	for_each_child_of_node(np, child) {
+	for_each_child_of_node_scoped(np, child) {
 		if (of_match_node(driver->subdevs, child) &&
 		    of_device_is_available(child)) {
 			err = host1x_subdev_add(device, driver, child);
 			if (err < 0) {
 				/* XXX cleanup? */
-				of_node_put(child);
 				return err;
 			}
 		}
···
 static int host1x_device_parse_dt(struct host1x_device *device,
 				  struct host1x_driver *driver)
 {
-	struct device_node *np;
 	int err;
 
-	for_each_child_of_node(device->dev.parent->of_node, np) {
+	for_each_child_of_node_scoped(device->dev.parent->of_node, np) {
 		if (of_match_node(driver->subdevs, np) &&
 		    of_device_is_available(np)) {
 			err = host1x_subdev_add(device, driver, np);
-			if (err < 0) {
-				of_node_put(np);
+			if (err < 0)
 				return err;
-			}
 		}
 	}
 

drivers/gpu/host1x/cdma.c

···
 		trace_host1x_wait_cdma(dev_name(cdma_to_channel(cdma)->dev),
 				       CDMA_EVENT_PUSH_BUFFER_SPACE);
 
-		host1x_hw_cdma_flush(host1x, cdma);
-
 		/* If somebody has managed to already start waiting, yield */
 		if (cdma->event != CDMA_EVENT_NONE) {
 			mutex_unlock(&cdma->lock);
···
  */
 void host1x_cdma_push(struct host1x_cdma *cdma, u32 op1, u32 op2)
 {
-	struct host1x *host1x = cdma_to_host1x(cdma);
 	struct push_buffer *pb = &cdma->push_buffer;
 	u32 slots_free = cdma->slots_free;
 
···
 		trace_host1x_cdma_push(dev_name(cdma_to_channel(cdma)->dev),
 				       op1, op2);
 
-	if (slots_free == 0) {
-		host1x_hw_cdma_flush(host1x, cdma);
+	if (slots_free == 0)
 		slots_free = host1x_cdma_wait_locked(cdma,
 						CDMA_EVENT_PUSH_BUFFER_SPACE);
-	}
 
 	cdma->slots_free = slots_free - 1;
 	cdma->slots_used++;

lib/tests/printf_kunit.c

···
 	static const struct fourcc_struct try_ch[] = {
 		{ 0x41424344, "ABCD (0x41424344)", },
 	};
-	static const struct fourcc_struct try_cn[] = {
+	static const struct fourcc_struct try_chR[] = {
 		{ 0x41424344, "DCBA (0x44434241)", },
 	};
 	static const struct fourcc_struct try_cl[] = {
···
 
 	fourcc_pointer_test(kunittest, try_cc, ARRAY_SIZE(try_cc), "%p4cc");
 	fourcc_pointer_test(kunittest, try_ch, ARRAY_SIZE(try_ch), "%p4ch");
-	fourcc_pointer_test(kunittest, try_cn, ARRAY_SIZE(try_cn), "%p4cn");
+	fourcc_pointer_test(kunittest, try_chR, ARRAY_SIZE(try_chR), "%p4chR");
 	fourcc_pointer_test(kunittest, try_cl, ARRAY_SIZE(try_cl), "%p4cl");
 	fourcc_pointer_test(kunittest, try_cb, ARRAY_SIZE(try_cb), "%p4cb");
 }

lib/vsprintf.c

···
 	orig = get_unaligned(fourcc);
 	switch (fmt[2]) {
 	case 'h':
-		break;
-	case 'n':
-		orig = swab32(orig);
+		if (fmt[3] == 'R')
+			orig = swab32(orig);
 		break;
 	case 'l':
 		orig = (__force u32)cpu_to_le32(orig);
···
  *       read the documentation (path below) first.
  * - 'NF' For a netdev_features_t
  * - '4cc' V4L2 or DRM FourCC code, with endianness and raw numerical value.
+ * - '4c[h[R]lb]' For generic FourCC code with raw numerical value. Both are
+ *	 displayed in the big-endian format. This is the opposite of V4L2 or
+ *	 DRM FourCCs.
+ *	 The additional specifiers define what endianness is used to load
+ *	 the stored bytes. The data might be interpreted using the host,
+ *	 reversed host byte order, little-endian, or big-endian.
  * - 'h[CDN]' For a variable-length buffer, it prints it as a hex string with
  *            a certain separator (' ' by default):
  *              C colon

scripts/checkpatch.pl

···
 					    ($extension eq "f" &&
 					     defined $qualifier && $qualifier !~ /^w/) ||
 					    ($extension eq "4" &&
-					     defined $qualifier && $qualifier !~ /^c[hnlbc]/)) {
+					     defined $qualifier && $qualifier !~ /^c(?:[hlbc]|hR)$/)) {
 						$bad_specifier = $specifier;
 						last;
 					}