On Thu, 4 Jun 2009 20:52:33 +0300 Imre Deak <[email protected]> wrote:
> From: Steve Sakoman <[email protected]> > > Add LCD support for OMAP3 EVM > > Backlight support by Arun C <[email protected]> > > Signed-off-by: Steve Sakoman <[email protected]> > Acked-by: Syed Mohammed Khasim <[email protected]> > Signed-off-by: Tony Lindgren <[email protected]> > Fixed-by: Jarkko Nikula <[email protected]> > Fixed-by: David Brownell <[email protected]> > Signed-off-by: Imre Deak <[email protected]> > --- > drivers/video/omap/Makefile | 1 + > drivers/video/omap/lcd_omap3evm.c | 191 > +++++++++++++++++++++++++++++++++++++ > 2 files changed, 192 insertions(+), 0 deletions(-) > create mode 100644 drivers/video/omap/lcd_omap3evm.c > > diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile > index 96d2d43..4345157 100644 > --- a/drivers/video/omap/Makefile > +++ b/drivers/video/omap/Makefile > @@ -30,6 +30,7 @@ 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$(CONFIG_MACH_OMAP3EVM) += lcd_omap3evm.o > objs-y$(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 0000000..1c3d814 > --- /dev/null > +++ b/drivers/video/omap/lcd_omap3evm.c > @@ -0,0 +1,191 @@ > +/* > + * LCD panel support for the TI OMAP3 EVM board > + * > + * Author: Steve Sakoman <[email protected]> > + * > + * 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 <linux/module.h> > +#include <linux/platform_device.h> > +#include <linux/gpio.h> > +#include <linux/i2c/twl4030.h> > + > +#include <mach/mux.h> > +#include <mach/omapfb.h> > +#include <asm/mach-types.h> > + > +#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 26000 /* in kHz */ > + You can drop defines used only once. There are no such defines for other panels. > +#define ENABLE_VDAC_DEDICATED 0x03 > +#define ENABLE_VDAC_DEV_GRP 0x20 > +#define ENABLE_VPLL2_DEDICATED 0x05 > +#define ENABLE_VPLL2_DEV_GRP 0xE0 > + > +#define TWL_LED_LEDEN 0x00 > +#define TWL_PWMA_PWMAON 0x00 > +#define TWL_PWMA_PWMAOFF 0x01 > + > +static unsigned int bklight_level; > + > +static int omap3evm_panel_init(struct lcd_panel *panel, > + struct omapfb_device *fbdev) > +{ > + gpio_request(LCD_PANEL_LR, "LCD lr"); > + gpio_request(LCD_PANEL_UD, "LCD ud"); > + gpio_request(LCD_PANEL_INI, "LCD ini"); > + gpio_request(LCD_PANEL_RESB, "LCD resb"); > + gpio_request(LCD_PANEL_QVGA, "LCD qvga"); > + > + 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); > + > + 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 omap3evm_panel_cleanup(struct lcd_panel *panel) > +{ Should the requested gpios be freed? > +} > + > +static int omap3evm_panel_enable(struct lcd_panel *panel) > +{ > + gpio_set_value(LCD_PANEL_ENABLE_GPIO, 0); > + return 0; > +} > + > +static void omap3evm_panel_disable(struct lcd_panel *panel) > +{ > + gpio_set_value(LCD_PANEL_ENABLE_GPIO, 1); > +} > + > +static unsigned long omap3evm_panel_get_caps(struct lcd_panel *panel) > +{ > + return 0; > +} > + > +static int omap3evm_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 omap3evm_bklight_getlevel(struct lcd_panel *panel) > +{ > + return bklight_level; > +} > + > +static unsigned int omap3evm_bklight_getmaxlevel(struct lcd_panel *panel) > +{ > + return 100; > +} > + > +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, > + > + .init = omap3evm_panel_init, > + .cleanup = omap3evm_panel_cleanup, > + .enable = omap3evm_panel_enable, > + .disable = omap3evm_panel_disable, > + .get_caps = omap3evm_panel_get_caps, > + .set_bklight_level = omap3evm_bklight_setlevel, > + .get_bklight_level = omap3evm_bklight_getlevel, > + .get_bklight_max = omap3evm_bklight_getmaxlevel, > +}; > + > +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); > -- > 1.6.3.1 > > > ------------------------------------------------------------------------------ > OpenSolaris 2009.06 is a cutting edge operating system for enterprises > looking to deploy the next generation of Solaris that includes the latest > innovations from Sun and the OpenSource community. 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