From 98b4c02ad7229074414bc51bae1452fe93ab5111 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Mon, 5 Jan 2009 14:57:32 +0200 Subject: [PATCH] DSS: Support for OMAP3 EVM board Coded by Vaibhav Hiremath Signed-off-by: Tomi Valkeinen --- 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 #include #include +#include #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