From 46def7437e520d21c5494fbd489563eaf78c4884 Mon Sep 17 00:00:00 2001 From: arun c Date: Wed, 6 Aug 2008 10:45:20 +0530 Subject: [PATCH] OMAP2EVM: add LCD panel support omap2evm LCD supports VGA and QVGA resolution, by default its in VGA mode. Signed-off-by: Arun C Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-omap2evm.c | 15 ++- drivers/video/omap/Makefile | 2 + drivers/video/omap/lcd_omap2evm.c | 195 +++++++++++++++++++++++++++ 3 files changed, 210 insertions(+), 2 deletions(-) create mode 100644 drivers/video/omap/lcd_omap2evm.c diff --git a/arch/arm/mach-omap2/board-omap2evm.c b/arch/arm/mach-omap2/board-omap2evm.c index 0baf704e3f8..13c53cca400 100644 --- a/arch/arm/mach-omap2/board-omap2evm.c +++ b/arch/arm/mach-omap2/board-omap2evm.c @@ -62,6 +62,15 @@ static inline void __init omap2evm_init_smc911x(void) } +static struct platform_device omap2_evm_lcd_device = { + .name = "omap2evm_lcd", + .id = -1, +}; + +static struct omap_lcd_config omap2_evm_lcd_config __initdata = { + .ctrl_name = "internal", +}; + static void __init omap2_evm_init_irq(void) { omap2_init_common_hw(NULL); @@ -75,7 +84,8 @@ static struct omap_uart_config omap2_evm_uart_config __initdata = { }; static struct omap_board_config_kernel omap2_evm_config[] __initdata = { - {OMAP_TAG_UART, &omap2_evm_uart_config}, + { OMAP_TAG_UART, &omap2_evm_uart_config }, + { OMAP_TAG_LCD, &omap2_evm_lcd_config }, }; static int __init omap2_evm_i2c_init(void) @@ -90,7 +100,8 @@ static int __init omap2_evm_i2c_init(void) } static struct platform_device *omap2_evm_devices[] __initdata = { - &omap2evm_smc911x_device, + &omap2_evm_lcd_device, + &omap2evm_smc911x_device, }; static void __init omap2_evm_init(void) diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile index fe7ee5dd097..662dff949ff 100644 --- a/drivers/video/omap/Makefile +++ b/drivers/video/omap/Makefile @@ -31,6 +31,8 @@ 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$(CONFIG_MACH_OMAP2EVM) += lcd_omap2evm.o +objs-y$(CONFIG_MACH_OMAP_3430SDP) += lcd_3430sdp.o objs-y$(CONFIG_MACH_OMAP3EVM) += lcd_omap3evm.o objs-y$(CONFIG_MACH_OMAP3_BEAGLE) += lcd_omap3beagle.o objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o diff --git a/drivers/video/omap/lcd_omap2evm.c b/drivers/video/omap/lcd_omap2evm.c new file mode 100644 index 00000000000..8311cac19e2 --- /dev/null +++ b/drivers/video/omap/lcd_omap2evm.c @@ -0,0 +1,195 @@ +/* + * LCD panel support for the MISTRAL OMAP2EVM board + * + * Author: Arun C + * + * Derived from drivers/video/omap/lcd_omap3evm.c + * 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 154 +#define LCD_PANEL_LR 128 +#define LCD_PANEL_UD 129 +#define LCD_PANEL_INI 152 +#define LCD_PANEL_QVGA 148 +#define LCD_PANEL_RESB 153 + +#define LCD_XRES 480 +#define LCD_YRES 640 +#define LCD_PIXCLOCK_MAX 20000 /* in kHz */ + +#define TWL_LED_LEDEN 0x00 +#define TWL_PWMA_PWMAON 0x00 +#define TWL_PWMA_PWMAOFF 0x01 + +static unsigned int bklight_level; + +static int omap2evm_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + omap_request_gpio(LCD_PANEL_ENABLE_GPIO); + omap_request_gpio(LCD_PANEL_LR); + omap_request_gpio(LCD_PANEL_UD); + omap_request_gpio(LCD_PANEL_INI); + omap_request_gpio(LCD_PANEL_QVGA); + omap_request_gpio(LCD_PANEL_RESB); + + omap_set_gpio_direction(LCD_PANEL_ENABLE_GPIO, 0); + 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_QVGA, 0); + omap_set_gpio_direction(LCD_PANEL_RESB, 0); + + 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); + + 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); + bklight_level = 100; + + return 0; +} + +static void omap2evm_panel_cleanup(struct lcd_panel *panel) +{ +} + +static int omap2evm_panel_enable(struct lcd_panel *panel) +{ + omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 0); + return 0; +} + +static void omap2evm_panel_disable(struct lcd_panel *panel) +{ + omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 1); +} + +static unsigned long omap2evm_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +static int omap2evm_bklight_setlevel(struct lcd_panel *panel, + unsigned int level) +{ + u8 c; + if ((level >= 0) && (level <= 100)) { + c = (125 * (100 - level)) / 100 + 2; + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, c, TWL_PWMA_PWMAOFF); + bklight_level = level; + } + return 0; +} + +static unsigned int omap2evm_bklight_getlevel(struct lcd_panel *panel) +{ + return bklight_level; +} + +static unsigned int omap2evm_bklight_getmaxlevel(struct lcd_panel *panel) +{ + return 100; +} + +struct lcd_panel omap2evm_panel = { + .name = "omap2evm", + .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, + .hfp = 0, + .hbp = 28, + .vsw = 2, + .vfp = 1, + .vbp = 0, + + .pixel_clock = LCD_PIXCLOCK_MAX, + + .init = omap2evm_panel_init, + .cleanup = omap2evm_panel_cleanup, + .enable = omap2evm_panel_enable, + .disable = omap2evm_panel_disable, + .get_caps = omap2evm_panel_get_caps, + .set_bklight_level = omap2evm_bklight_setlevel, + .get_bklight_level = omap2evm_bklight_getlevel, + .get_bklight_max = omap2evm_bklight_getmaxlevel, +}; + +static int omap2evm_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&omap2evm_panel); + return 0; +} + +static int omap2evm_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int omap2evm_panel_suspend(struct platform_device *pdev, + pm_message_t mesg) +{ + return 0; +} + +static int omap2evm_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver omap2evm_panel_driver = { + .probe = omap2evm_panel_probe, + .remove = omap2evm_panel_remove, + .suspend = omap2evm_panel_suspend, + .resume = omap2evm_panel_resume, + .driver = { + .name = "omap2evm_lcd", + .owner = THIS_MODULE, + }, +}; + +static int __init omap2evm_panel_drv_init(void) +{ + return platform_driver_register(&omap2evm_panel_driver); +} + +static void __exit omap2evm_panel_drv_exit(void) +{ + platform_driver_unregister(&omap2evm_panel_driver); +} + +module_init(omap2evm_panel_drv_init); +module_exit(omap2evm_panel_drv_exit); -- 2.41.0