From cb40de721e98229982b3546e5378bb7ed9c50ac9 Mon Sep 17 00:00:00 2001 From: Steve Sakoman Date: Wed, 30 Apr 2008 07:14:53 -0700 Subject: [PATCH] OMAP3 EVM: add lcd support (resubmit to respond to feedback) Add LCD support for OMAP3 EVM Signed-off-by: Steve Sakoman Acked-by: Syed Mohammed Khasim Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-omap3evm.c | 15 +++ drivers/video/omap/Makefile | 1 + drivers/video/omap/lcd_omap3evm.c | 167 +++++++++++++++++++++++++++ 3 files changed, 183 insertions(+) create mode 100644 drivers/video/omap/lcd_omap3evm.c diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index 152e8af88e5..1c20505f060 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -51,6 +51,15 @@ static struct omap_mmc_config omap3_evm_mmc_config __initdata = { }, }; +static struct platform_device omap3_evm_lcd_device = { + .name = "omap3evm_lcd", + .id = -1, +}; + +static struct omap_lcd_config omap3_evm_lcd_config __initdata = { + .ctrl_name = "internal", +}; + static void __init omap3_evm_init_irq(void) { omap2_init_common_hw(); @@ -61,10 +70,16 @@ 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_MMC, &omap3_evm_mmc_config }, + { OMAP_TAG_LCD, &omap3_evm_lcd_config }, +}; + +static struct platform_device *omap3_evm_devices[] __initdata = { + &omap3_evm_lcd_device, }; static void __init omap3_evm_init(void) { + 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); omap_serial_init(); diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile index fb6cb15abae..cad6a688c8d 100644 --- a/drivers/video/omap/Makefile +++ b/drivers/video/omap/Makefile @@ -31,6 +31,7 @@ objs-y$(CONFIG_MACH_SX1) += lcd_sx1.o objs-y$(CONFIG_MACH_OMAP_APOLLON) += lcd_apollon.o objs-y$(CONFIG_MACH_OMAP_2430SDP) += lcd_2430sdp.o objs-y$(CONFIG_MACH_OMAP_3430SDP) += lcd_2430sdp.o +objs-y$(CONFIG_MACH_OMAP3EVM) += lcd_omap3evm.o objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o omapfb-objs := $(objs-yy) diff --git a/drivers/video/omap/lcd_omap3evm.c b/drivers/video/omap/lcd_omap3evm.c new file mode 100644 index 00000000000..04e40b6459b --- /dev/null +++ b/drivers/video/omap/lcd_omap3evm.c @@ -0,0 +1,167 @@ +/* + * LCD panel support for the TI OMAP3 EVM board + * + * Author: Steve Sakoman + * + * Derived from drivers/video/omap/lcd-apollon.c + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include +#include +#include + +#include +#include +#include +#include + +#define LCD_PANEL_ENABLE_GPIO 153 +#define LCD_PANEL_LR 2 +#define LCD_PANEL_UD 3 +#define LCD_PANEL_INI 152 +#define LCD_PANEL_QVGA 154 +#define LCD_PANEL_RESB 155 + +#define LCD_XRES 480 +#define LCD_YRES 640 +#define LCD_PIXCLOCK_MAX 41700 /* in pico seconds */ +#define LCD_PIXCLOCK_MIN 38000 /* in pico seconds */ + +#define ENABLE_VDAC_DEDICATED 0x03 +#define ENABLE_VDAC_DEV_GRP 0x20 +#define ENABLE_VPLL2_DEDICATED 0x05 +#define ENABLE_VPLL2_DEV_GRP 0xE0 + +static int omap3evm_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + omap_request_gpio(LCD_PANEL_LR); + omap_request_gpio(LCD_PANEL_UD); + omap_request_gpio(LCD_PANEL_INI); + omap_request_gpio(LCD_PANEL_RESB); + omap_request_gpio(LCD_PANEL_QVGA); + + omap_set_gpio_direction(LCD_PANEL_LR, 0); + omap_set_gpio_direction(LCD_PANEL_UD, 0); + omap_set_gpio_direction(LCD_PANEL_INI, 0); + omap_set_gpio_direction(LCD_PANEL_RESB, 0); + omap_set_gpio_direction(LCD_PANEL_QVGA, 0); + + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 0); + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x7F, 1); + twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 0); + twl4030_i2c_write_u8(TWL4030_MODULE_PWMB, 0x7F, 1); + + omap_set_gpio_dataout(LCD_PANEL_RESB, 1); + omap_set_gpio_dataout(LCD_PANEL_INI, 1); + omap_set_gpio_dataout(LCD_PANEL_QVGA, 0); + omap_set_gpio_dataout(LCD_PANEL_LR, 1); + omap_set_gpio_dataout(LCD_PANEL_UD, 1); + + return 0; +} + +static void omap3evm_panel_cleanup(struct lcd_panel *panel) +{ +} + +static int omap3evm_panel_enable(struct lcd_panel *panel) +{ + omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 0); + return 0; +} + +static void omap3evm_panel_disable(struct lcd_panel *panel) +{ + omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 1); +} + +static unsigned long omap3evm_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel omap3evm_panel = { + .name = "omap3evm", + .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | + OMAP_LCDC_INV_HSYNC, + + .bpp = 16, + .data_lines = 18, + .x_res = LCD_XRES, + .y_res = LCD_YRES, + .hsw = 3, /* hsync_len (4) - 1 */ + .hfp = 3, /* right_margin (4) - 1 */ + .hbp = 39, /* left_margin (40) - 1 */ + .vsw = 1, /* vsync_len (2) - 1 */ + .vfp = 2, /* lower_margin */ + .vbp = 7, /* upper_margin (8) - 1 */ + + .pixel_clock = LCD_PIXCLOCK_MAX, + + .init = omap3evm_panel_init, + .cleanup = omap3evm_panel_cleanup, + .enable = omap3evm_panel_enable, + .disable = omap3evm_panel_disable, + .get_caps = omap3evm_panel_get_caps, +}; + +static int omap3evm_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&omap3evm_panel); + return 0; +} + +static int omap3evm_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int omap3evm_panel_suspend(struct platform_device *pdev, + pm_message_t mesg) +{ + return 0; +} + +static int omap3evm_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver omap3evm_panel_driver = { + .probe = omap3evm_panel_probe, + .remove = omap3evm_panel_remove, + .suspend = omap3evm_panel_suspend, + .resume = omap3evm_panel_resume, + .driver = { + .name = "omap3evm_lcd", + .owner = THIS_MODULE, + }, +}; + +static int __init omap3evm_panel_drv_init(void) +{ + return platform_driver_register(&omap3evm_panel_driver); +} + +static void __exit omap3evm_panel_drv_exit(void) +{ + platform_driver_unregister(&omap3evm_panel_driver); +} + +module_init(omap3evm_panel_drv_init); +module_exit(omap3evm_panel_drv_exit); -- 2.41.1