staging: board: armadillo800eva: Board staging for sh_mobile_lcdc_fb

Add staging board support for the r8a7740-based armadillo800eva board
and add platform devices to allow in-tree continuous development of the
drivers on the armadillo800eva board.

When DT bindings are ready for theses drivers then the platform devices
in the armadillo800eva staging board code can easily be removed. Until
then we use platform devices to continuously improve the driver and
integrate code.

Added platform devices:
- sh_mobile_lcdc_fb for the on-board LCD.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Acked-by: Simon Horman <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/board/Makefile

···
 obj-y	:= board.o
-obj-$(CONFIG_ARCH_EMEV2)      += kzm9d.o
+obj-$(CONFIG_ARCH_EMEV2)	+= kzm9d.o
+obj-$(CONFIG_ARCH_R8A7740)	+= armadillo800eva.o

drivers/staging/board/armadillo800eva.c

···
+/*
+ * Staging board support for Armadillo 800 eva.
+ * Enable not-yet-DT-capable devices here.
+ *
+ * Based on board-armadillo800eva.c
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ * Copyright (C) 2012 Kuninori Morimoto <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/fb.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/videodev2.h>
+
+#include <video/sh_mobile_lcdc.h>
+
+#include "board.h"
+
+
+static struct fb_videomode lcdc0_mode = {
+	.name		= "AMPIER/AM-800480",
+	.xres		= 800,
+	.yres		= 480,
+	.left_margin	= 88,
+	.right_margin	= 40,
+	.hsync_len	= 128,
+	.upper_margin	= 20,
+	.lower_margin	= 5,
+	.vsync_len	= 5,
+	.sync		= 0,
+};
+
+static struct sh_mobile_lcdc_info lcdc0_info = {
+	.clock_source	= LCDC_CLK_BUS,
+	.ch[0] = {
+		.chan		= LCDC_CHAN_MAINLCD,
+		.fourcc		= V4L2_PIX_FMT_RGB565,
+		.interface_type	= RGB24,
+		.clock_divider	= 5,
+		.flags		= 0,
+		.lcd_modes	= &lcdc0_mode,
+		.num_modes	= 1,
+		.panel_cfg = {
+			.width	= 111,
+			.height = 68,
+		},
+	},
+};
+
+static struct resource lcdc0_resources[] = {
+	[0] = {
+		.name	= "LCD0",
+		.start	= 0xfe940000,
+		.end	= 0xfe943fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= 177 + 32,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device lcdc0_device = {
+	.name		= "sh_mobile_lcdc_fb",
+	.num_resources	= ARRAY_SIZE(lcdc0_resources),
+	.resource	= lcdc0_resources,
+	.id		= 0,
+	.dev	= {
+		.platform_data	= &lcdc0_info,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+};
+
+static const struct board_staging_clk lcdc0_clocks[] __initconst = {
+	{ "lcdc0", NULL, "sh_mobile_lcdc_fb.0" },
+};
+
+static const struct board_staging_dev armadillo800eva_devices[] __initconst = {
+	{
+		.pdev		= &lcdc0_device,
+		.clocks		= lcdc0_clocks,
+		.nclocks	= ARRAY_SIZE(lcdc0_clocks),
+		.domain		= "a4lc",
+	},
+};
+
+static void __init armadillo800eva_init(void)
+{
+	board_staging_gic_setup_xlate("arm,cortex-a9-gic", 32);
+	board_staging_register_devices(armadillo800eva_devices,
+				       ARRAY_SIZE(armadillo800eva_devices));
+}
+
+board_staging("renesas,armadillo800eva", armadillo800eva_init);