OMAP: RX51: Add LCD Panel support

Adds basic support for LCD Panel on Nokia N900

Signed-off-by: Roger Quadros <roger.quadros@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>

4 files changed, 125 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 4b9fc57770db..b03cbb434a31 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -122,6 +122,7 @@ obj-$(CONFIG_MACH_NOKIA_N8X0)		+= board-n8x0.o
 obj-$(CONFIG_MACH_NOKIA_RX51)           += board-rx51.o \
                                            board-rx51-sdram.o \
                                            board-rx51-peripherals.o \
+                                           board-rx51-video.o \
                                            hsmmc.o
 obj-$(CONFIG_MACH_OMAP_ZOOM2)           += board-zoom2.o \
                                            board-zoom-peripherals.o \
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index 4377a4cf36eb..f40453774855 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -45,6 +45,7 @@
 /* list all spi devices here */
 enum {
         RX51_SPI_WL1251,
+        RX51_SPI_MIPID,         /* LCD panel */
 };
 
 static struct wl12xx_platform_data wl1251_pdata;
@@ -54,6 +55,11 @@ static struct omap2_mcspi_device_config wl1251_mcspi_config = {
         .single_channel = 1,
 };
 
+static struct omap2_mcspi_device_config mipid_mcspi_config = {
+        .turbo_mode     = 0,
+        .single_channel = 1,
+};
+
 static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = {
         [RX51_SPI_WL1251] = {
                 .modalias               = "wl1251",
@@ -64,6 +70,13 @@ static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = {
                 .controller_data        = &wl1251_mcspi_config,
                 .platform_data          = &wl1251_pdata,
         },
+        [RX51_SPI_MIPID] = {
+                .modalias               = "acx565akm",
+                .bus_num                = 1,
+                .chip_select            = 2,
+                .max_speed_hz           = 6000000,
+                .controller_data        = &mipid_mcspi_config,
+        },
 };
 
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
diff --git a/arch/arm/mach-omap2/board-rx51-video.c b/arch/arm/mach-omap2/board-rx51-video.c
new file mode 100644
index 000000000000..b743a4f42649
--- /dev/null
+++ b/arch/arm/mach-omap2/board-rx51-video.c
@@ -0,0 +1,109 @@
+/*
+ * linux/arch/arm/mach-omap2/board-rx51-video.c
+ *
+ * Copyright (C) 2010 Nokia
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/mm.h>
+
+#include <asm/mach-types.h>
+#include <plat/mux.h>
+#include <plat/display.h>
+#include <plat/vram.h>
+#include <plat/mcspi.h>
+
+#include "mux.h"
+
+#define RX51_LCD_RESET_GPIO     90
+
+#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
+
+static int rx51_lcd_enable(struct omap_dss_device *dssdev)
+{
+        gpio_set_value(dssdev->reset_gpio, 1);
+        return 0;
+}
+
+static void rx51_lcd_disable(struct omap_dss_device *dssdev)
+{
+        gpio_set_value(dssdev->reset_gpio, 0);
+}
+
+static struct omap_dss_device rx51_lcd_device = {
+        .name                   = "lcd",
+        .driver_name            = "panel-acx565akm",
+        .type                   = OMAP_DISPLAY_TYPE_SDI,
+        .phy.sdi.datapairs      = 2,
+        .reset_gpio             = RX51_LCD_RESET_GPIO,
+        .platform_enable        = rx51_lcd_enable,
+        .platform_disable       = rx51_lcd_disable,
+};
+
+static struct omap_dss_device *rx51_dss_devices[] = {
+        &rx51_lcd_device,
+};
+
+static struct omap_dss_board_info rx51_dss_board_info = {
+        .num_devices    = ARRAY_SIZE(rx51_dss_devices),
+        .devices        = rx51_dss_devices,
+        .default_device = &rx51_lcd_device,
+};
+
+struct platform_device rx51_display_device = {
+        .name   = "omapdss",
+        .id     = -1,
+        .dev    = {
+                .platform_data = &rx51_dss_board_info,
+        },
+};
+
+static struct platform_device *rx51_video_devices[] __initdata = {
+        &rx51_display_device,
+};
+
+static int __init rx51_video_init(void)
+{
+        if (!machine_is_nokia_rx51())
+                return 0;
+
+        if (omap_mux_init_gpio(RX51_LCD_RESET_GPIO, OMAP_PIN_OUTPUT)) {
+                pr_err("%s cannot configure MUX for LCD RESET\n", __func__);
+                return 0;
+        }
+
+        if (gpio_request(RX51_LCD_RESET_GPIO, "LCD ACX565AKM reset")) {
+                pr_err("%s failed to get LCD Reset GPIO\n", __func__);
+                return 0;
+        }
+
+        gpio_direction_output(RX51_LCD_RESET_GPIO, 1);
+
+        platform_add_devices(rx51_video_devices,
+                                ARRAY_SIZE(rx51_video_devices));
+        return 0;
+}
+
+subsys_initcall(rx51_video_init);
+
+void __init rx51_video_mem_init(void)
+{
+        /*
+         * GFX 864x480x32bpp
+         * VID1/2 1280x720x32bpp double buffered
+         */
+        omap_vram_set_sdram_vram(PAGE_ALIGN(864 * 480 * 4) +
+                        2 * PAGE_ALIGN(1280 * 720 * 4 * 2), 0);
+}
+
+#else
+void __init rx51_video_mem_init(void) { }
+#endif /* defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) */
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index b155c366c650..1b86b5bb87a2 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -36,6 +36,7 @@
 #define RX51_GPIO_SLEEP_IND 162
 
 struct omap_sdrc_params *rx51_get_sdram_timings(void);
+extern void rx51_video_mem_init(void);
 
 static struct gpio_led gpio_leds[] = {
         {
@@ -143,6 +144,7 @@ static void __init rx51_init(void)
 static void __init rx51_map_io(void)
 {
         omap2_set_globals_343x();
+        rx51_video_mem_init();
         omap34xx_map_common_io();
 }