path: root/packages/linux/linux-omap/0011-DSS-Support-for-OMAP3-EVM-board.patch

From c50a7b6c9ceb75c1bc49bc596556fdf6b1960306 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Date: Fri, 14 Nov 2008 16:03:34 +0200
Subject: [PATCH] DSS: Support for OMAP3 EVM board

Coded by Vaibhav Hiremath <hvaibhav@ti.com>

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
---
 arch/arm/mach-omap2/board-omap3evm.c |  224 ++++++++++++++++++++++++++++++++--
 1 files changed, 215 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index e4e60e2..7756dd8 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -36,6 +36,8 @@
 #include <mach/usb-ehci.h>
 #include <mach/common.h>
 #include <mach/mcspi.h>
+#include <mach/omapfb.h>
+#include <mach/display.h>
 
 #include "sdram-micron-mt46h32m32lf-6.h"
 #include "twl4030-generic-scripts.h"
@@ -159,14 +161,215 @@ static int __init omap3_evm_i2c_init(void)
 	omap_register_i2c_bus(3, 400, NULL, 0);
 	return 0;
 }
+static struct omap_fbmem_config evm_fbmem0_config = {
+		.size = 480*720*4,
+		.start = OMAPFB_MEMTYPE_SDRAM,
+};
 
-static struct platform_device omap3_evm_lcd_device = {
-	.name		= "omap3evm_lcd",
-	.id		= -1,
+static struct omap_fbmem_config evm_fbmem1_config = {
+		.size = 480*720*4,
+		.start = OMAPFB_MEMTYPE_SDRAM,
 };
 
-static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
-	.ctrl_name	= "internal",
+static struct omap_fbmem_config evm_fbmem2_config = {
+		.size = 480*720*4,
+		.start = OMAPFB_MEMTYPE_SDRAM,
+};
+#define LCD_PANEL_LR		2
+#define LCD_PANEL_UD		3
+#define LCD_PANEL_INI		152
+#define LCD_PANEL_ENABLE_GPIO	153
+#define LCD_PANEL_QVGA		154
+#define LCD_PANEL_RESB		155
+
+#define ENABLE_VDAC_DEDICATED	0x03
+#define ENABLE_VDAC_DEV_GRP	0x20
+#define ENABLE_VPLL2_DEDICATED	0x05
+#define ENABLE_VPLL2_DEV_GRP	0xE0
+
+#define TWL4030_GPIODATA_IN3	0x03
+#define TWL4030_GPIODATA_DIR3	0x06
+#define TWL4030_VPLL2_DEV_GRP	0x33
+#define TWL4030_VPLL2_DEDICATED	0x36
+
+static int lcd_enabled;
+static int dvi_enabled;
+
+static void __init evm_display_init(void)
+{
+	int r;
+	r = gpio_request(LCD_PANEL_LR, "lcd_panel_lr");
+	if (r) {
+		printk(KERN_ERR "failed to get LCD_PANEL_LR\n");
+		return;
+	}
+	r = gpio_request(LCD_PANEL_UD, "lcd_panel_ud");
+	if (r) {
+		printk(KERN_ERR "failed to get LCD_PANEL_UD\n");
+		goto err_1;
+	}
+
+	r = gpio_request(LCD_PANEL_INI, "lcd_panel_ini");
+	if (r) {
+		printk(KERN_ERR "failed to get LCD_PANEL_INI\n");
+		goto err_2;
+	}
+	r = gpio_request(LCD_PANEL_RESB, "lcd_panel_resb");
+	if (r) {
+		printk(KERN_ERR "failed to get LCD_PANEL_RESB\n");
+		goto err_3;
+	}
+	r = gpio_request(LCD_PANEL_QVGA, "lcd_panel_qvga");
+	if (r) {
+		printk(KERN_ERR "failed to get LCD_PANEL_QVGA\n");
+		goto err_4;
+	}
+
+	gpio_direction_output(LCD_PANEL_LR, 0);
+	gpio_direction_output(LCD_PANEL_UD, 0);
+	gpio_direction_output(LCD_PANEL_INI, 0);
+	gpio_direction_output(LCD_PANEL_RESB, 0);
+	gpio_direction_output(LCD_PANEL_QVGA, 0);
+
+#define TWL_LED_LEDEN           0x00
+#define TWL_PWMA_PWMAON         0x00
+#define TWL_PWMA_PWMAOFF        0x01
+
+	twl4030_i2c_write_u8(TWL4030_MODULE_LED, 0x11, TWL_LED_LEDEN);
+	twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x01, TWL_PWMA_PWMAON);
+	twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x02, TWL_PWMA_PWMAOFF);
+
+	gpio_direction_output(LCD_PANEL_RESB, 1);
+	gpio_direction_output(LCD_PANEL_INI, 1);
+	gpio_direction_output(LCD_PANEL_QVGA, 0);
+	gpio_direction_output(LCD_PANEL_LR, 1);
+	gpio_direction_output(LCD_PANEL_UD, 1);
+
+	return;
+
+err_4:
+	gpio_free(LCD_PANEL_RESB);
+err_3:
+	gpio_free(LCD_PANEL_INI);
+err_2:
+	gpio_free(LCD_PANEL_UD);
+err_1:
+	gpio_free(LCD_PANEL_LR);
+
+}
+
+static int evm_panel_enable_lcd(struct omap_display *display)
+{
+	if (dvi_enabled) {
+		printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
+		return -EINVAL;
+	}
+	if (omap_rev() > OMAP3430_REV_ES1_0) {
+		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+			ENABLE_VPLL2_DEDICATED, TWL4030_VPLL2_DEDICATED);
+		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+			ENABLE_VPLL2_DEV_GRP, TWL4030_VPLL2_DEV_GRP);
+	}
+	gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0);
+	lcd_enabled = 1;
+	return 0;
+}
+
+static void evm_panel_disable_lcd(struct omap_display *display)
+{
+	if (omap_rev() > OMAP3430_REV_ES1_0) {
+		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
+				TWL4030_VPLL2_DEDICATED);
+		twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x0,
+				TWL4030_VPLL2_DEV_GRP);
+	}
+	gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 1);
+	lcd_enabled = 0;
+}
+
+static struct omap_display_data evm_display_data = {
+	.type = OMAP_DISPLAY_TYPE_DPI,
+	.name = "lcd",
+	.panel_name = "sharp-ls037v7dw01",
+	.u.dpi.data_lines = 18,
+	.panel_enable = evm_panel_enable_lcd,
+	.panel_disable = evm_panel_disable_lcd,
+};
+
+static int evm_panel_enable_tv(struct omap_display *display)
+{
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+			ENABLE_VDAC_DEDICATED, TWL4030_VDAC_DEDICATED);
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
+			ENABLE_VDAC_DEV_GRP, TWL4030_VDAC_DEV_GRP);
+	return 0;
+}
+
+static void evm_panel_disable_tv(struct omap_display *display)
+{
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x00,
+			TWL4030_VDAC_DEDICATED);
+	twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x00,
+			TWL4030_VDAC_DEV_GRP);
+}
+
+static struct omap_display_data evm_display_data_tv = {
+	.type = OMAP_DISPLAY_TYPE_VENC,
+	.name = "tv",
+	.u.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
+	.panel_enable = evm_panel_enable_tv,
+	.panel_disable = evm_panel_disable_tv,
+};
+
+
+static int evm_panel_enable_dvi(struct omap_display *display)
+{
+	if (lcd_enabled) {
+		printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
+		return -EINVAL;
+	}
+	twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x80,
+			TWL4030_GPIODATA_IN3);
+	twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x80,
+			TWL4030_GPIODATA_DIR3);
+	dvi_enabled = 1;
+
+	return 0;
+}
+
+static void evm_panel_disable_dvi(struct omap_display *display)
+{
+	twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x00,
+			TWL4030_GPIODATA_IN3);
+	twl4030_i2c_write_u8(TWL4030_MODULE_GPIO, 0x00,
+			TWL4030_GPIODATA_DIR3);
+	dvi_enabled = 0;
+}
+
+
+static struct omap_display_data evm_display_data_dvi = {
+	.type = OMAP_DISPLAY_TYPE_DPI,
+	.name = "dvi",
+	.panel_name = "panel-dvi",
+	.u.dpi.data_lines = 24,
+	.panel_enable = evm_panel_enable_dvi,
+	.panel_disable = evm_panel_disable_dvi,
+};
+
+static struct omap_dss_platform_data evm_dss_data = {
+	.num_displays = 3,
+	.displays = {
+		&evm_display_data,
+		&evm_display_data_dvi,
+		&evm_display_data_tv,
+	}
+};
+static struct platform_device evm_dss_device = {
+	.name		= "omap-dss",
+	.id		= -1,
+	.dev            = {
+		.platform_data = &evm_dss_data,
+	},
 };
 
 static void ads7846_dev_init(void)
@@ -225,11 +428,13 @@ static void __init omap3_evm_init_irq(void)
 
 static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
 	{ OMAP_TAG_UART,	&omap3_evm_uart_config },
-	{ OMAP_TAG_LCD,		&omap3_evm_lcd_config },
+	{ OMAP_TAG_FBMEM,       &evm_fbmem0_config },
+	{ OMAP_TAG_FBMEM,       &evm_fbmem1_config },
+	{ OMAP_TAG_FBMEM,       &evm_fbmem2_config },
 };
 
 static struct platform_device *omap3_evm_devices[] __initdata = {
-	&omap3_evm_lcd_device,
+	&evm_dss_device,
 	&omap3evm_smc911x_device,
 };
 
@@ -248,8 +453,6 @@ static void __init omap3_evm_init(void)
 	omap3_evm_i2c_init();
 
 	platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
-	omap_board_config = omap3_evm_config;
-	omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
 
 	spi_register_board_info(omap3evm_spi_board_info,
 				ARRAY_SIZE(omap3evm_spi_board_info));
@@ -260,10 +463,13 @@ static void __init omap3_evm_init(void)
 	usb_ehci_init();
 	omap3evm_flash_init();
 	ads7846_dev_init();
+	evm_display_init();
 }
 
 static void __init omap3_evm_map_io(void)
 {
+	omap_board_config = omap3_evm_config;
+	omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
 	omap2_set_globals_343x();
 	omap2_map_common_io();
 }
-- 
1.5.6.3