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>

1 files changed, 109 insertions, 0 deletions

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) */