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From 98b4c02ad7229074414bc51bae1452fe93ab5111 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Date: Mon, 5 Jan 2009 14:57:32 +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 | 203 ++++++++++++++++++++++++++++++++-
1 files changed, 196 insertions(+), 7 deletions(-)
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index e4e60e2..e7ec9e6 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -36,6 +36,7 @@
#include <mach/usb-ehci.h>
#include <mach/common.h>
#include <mach/mcspi.h>
+#include <mach/display.h>
#include "sdram-micron-mt46h32m32lf-6.h"
#include "twl4030-generic-scripts.h"
@@ -160,13 +161,201 @@ static int __init omap3_evm_i2c_init(void)
return 0;
}
-static struct platform_device omap3_evm_lcd_device = {
- .name = "omap3evm_lcd",
- .id = -1,
+#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 omap3_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 omap3_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 omap3_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 omap3_evm_display_data = {
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .name = "lcd",
+ .panel_name = "sharp-ls037v7dw01",
+ .u.dpi.data_lines = 18,
+ .panel_enable = omap3_evm_panel_enable_lcd,
+ .panel_disable = omap3_evm_panel_disable_lcd,
};
-static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
- .ctrl_name = "internal",
+static int omap3_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 omap3_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 omap3_evm_display_data_tv = {
+ .type = OMAP_DISPLAY_TYPE_VENC,
+ .name = "tv",
+ .u.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
+ .panel_enable = omap3_evm_panel_enable_tv,
+ .panel_disable = omap3_evm_panel_disable_tv,
+};
+
+
+static int omap3_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 omap3_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 omap3_evm_display_data_dvi = {
+ .type = OMAP_DISPLAY_TYPE_DPI,
+ .name = "dvi",
+ .panel_name = "panel-generic",
+ .u.dpi.data_lines = 24,
+ .panel_enable = omap3_evm_panel_enable_dvi,
+ .panel_disable = omap3_evm_panel_disable_dvi,
+};
+
+static struct omap_dss_platform_data omap3_evm_dss_data = {
+ .num_displays = 3,
+ .displays = {
+ &omap3_evm_display_data,
+ &omap3_evm_display_data_dvi,
+ &omap3_evm_display_data_tv,
+ }
+};
+static struct platform_device omap3_evm_dss_device = {
+ .name = "omap-dss",
+ .id = -1,
+ .dev = {
+ .platform_data = &omap3_evm_dss_data,
+ },
};
static void ads7846_dev_init(void)
@@ -225,11 +414,10 @@ 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 },
};
static struct platform_device *omap3_evm_devices[] __initdata = {
- &omap3_evm_lcd_device,
+ &omap3_evm_dss_device,
&omap3evm_smc911x_device,
};
@@ -260,6 +448,7 @@ static void __init omap3_evm_init(void)
usb_ehci_init();
omap3evm_flash_init();
ads7846_dev_init();
+ omap3_evm_display_init();
}
static void __init omap3_evm_map_io(void)
--
1.5.6.3
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