Any comment ? This is LCD driver on Logic ZOOM MDK. Stanley. On Tue, 2008-11-04 at 11:31 +0800, Stanley.Miao wrote: > Add glue to control the OMAP_LDP LCD as a frame buffer device > using the existing dispc.c driver under omapfb. > > Signed-off-by: Stanley.Miao <stanley.miao@xxxxxxxxxxxxx> > --- > arch/arm/configs/omap_ldp_defconfig | 51 +++++++++- > arch/arm/mach-omap2/board-ldp.c | 11 ++ > drivers/video/omap/Kconfig | 4 + > drivers/video/omap/Makefile | 1 + > drivers/video/omap/lcd_ldp.c | 200 +++++++++++++++++++++++++++++++++++ > 5 files changed, 265 insertions(+), 2 deletions(-) > create mode 100644 drivers/video/omap/lcd_ldp.c > > diff --git a/arch/arm/configs/omap_ldp_defconfig b/arch/arm/configs/omap_ldp_defconfig > index 0acaee5..b8135d2 100644 > --- a/arch/arm/configs/omap_ldp_defconfig > +++ b/arch/arm/configs/omap_ldp_defconfig > @@ -667,8 +667,45 @@ CONFIG_DAB=y > # > # CONFIG_VGASTATE is not set > CONFIG_VIDEO_OUTPUT_CONTROL=m > -# CONFIG_FB is not set > -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set > +CONFIG_FB=y > +CONFIG_FIRMWARE_EDID=y > +# CONFIG_FB_DDC is not set > +# CONFIG_FB_BOOT_VESA_SUPPORT is not set > +CONFIG_FB_CFB_FILLRECT=y > +CONFIG_FB_CFB_COPYAREA=y > +CONFIG_FB_CFB_IMAGEBLIT=y > +# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set > +# CONFIG_FB_SYS_FILLRECT is not set > +# CONFIG_FB_SYS_COPYAREA is not set > +# CONFIG_FB_SYS_IMAGEBLIT is not set > +# CONFIG_FB_FOREIGN_ENDIAN is not set > +# CONFIG_FB_SYS_FOPS is not set > +# CONFIG_FB_SVGALIB is not set > +# CONFIG_FB_MACMODES is not set > +# CONFIG_FB_BACKLIGHT is not set > +CONFIG_FB_MODE_HELPERS=y > +CONFIG_FB_TILEBLITTING=y > + > +# > +# Frame buffer hardware drivers > +# > +# CONFIG_FB_S1D13XXX is not set > +# CONFIG_FB_VIRTUAL is not set > +# CONFIG_FB_METRONOME is not set > +CONFIG_FB_OMAP=y > +CONFIG_FB_OMAP_LCD_VGA=y > +# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set > +# CONFIG_FB_OMAP_BOOTLOADER_INIT is not set > +CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=4 > +CONFIG_BACKLIGHT_LCD_SUPPORT=y > +CONFIG_LCD_CLASS_DEVICE=y > +# CONFIG_LCD_LTV350QV is not set > +# CONFIG_LCD_ILI9320 is not set > +# CONFIG_LCD_TDO24M is not set > +# CONFIG_LCD_VGG2432A4 is not set > +CONFIG_LCD_PLATFORM=y > +CONFIG_BACKLIGHT_CLASS_DEVICE=y > +# CONFIG_BACKLIGHT_CORGI is not set > > # > # Display device support > @@ -680,6 +717,16 @@ CONFIG_VIDEO_OUTPUT_CONTROL=m > # > # CONFIG_VGA_CONSOLE is not set > CONFIG_DUMMY_CONSOLE=y > +CONFIG_FRAMEBUFFER_CONSOLE=y > +# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set > +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set > +# CONFIG_FONTS is not set > +CONFIG_FONT_8x8=y > +CONFIG_FONT_8x16=y > +CONFIG_LOGO=y > +CONFIG_LOGO_LINUX_MONO=y > +CONFIG_LOGO_LINUX_VGA16=y > +CONFIG_LOGO_LINUX_CLUT224=y > CONFIG_SOUND=y > CONFIG_SND=y > # CONFIG_SND_SEQUENCER is not set > diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c > index d4d4e90..e046b10 100644 > --- a/arch/arm/mach-omap2/board-ldp.c > +++ b/arch/arm/mach-omap2/board-ldp.c > @@ -168,7 +168,13 @@ static struct spi_board_info ldp_spi_board_info[] __initdata = { > }, > }; > > +static struct platform_device ldp_lcd_device = { > + .name = "ldp_lcd", > + .id = -1, > +}; > + > static struct platform_device *ldp_devices[] __initdata = { > + &ldp_lcd_device, > }; > > static void __init omap_ldp_init_irq(void) > @@ -182,8 +188,13 @@ static struct omap_uart_config ldp_uart_config __initdata = { > .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), > }; > > +static struct omap_lcd_config ldp_lcd_config __initdata = { > + .ctrl_name = "internal", > +}; > + > static struct omap_board_config_kernel ldp_config[] __initdata = { > { OMAP_TAG_UART, &ldp_uart_config }, > + { OMAP_TAG_LCD, &ldp_lcd_config }, > }; > > static int ldp_batt_table[] = { > diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig > index 5ebd591..c355b59 100644 > --- a/drivers/video/omap/Kconfig > +++ b/drivers/video/omap/Kconfig > @@ -7,6 +7,10 @@ config FB_OMAP > help > Frame buffer driver for OMAP based boards. > > +config FB_OMAP_LCD_VGA > + bool "Use LCD in VGA mode" > + depends on MACH_OMAP_3430SDP || MACH_OMAP_LDP > + > choice > depends on FB_OMAP && MACH_OVERO > prompt "Screen resolution" > diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile > index 291c46e..881e87d 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$(CONFIG_MACH_OMAP_LDP) += lcd_ldp.o > objs-y$(CONFIG_MACH_OMAP2EVM) += lcd_omap2evm.o > objs-y$(CONFIG_MACH_OMAP3EVM) += lcd_omap3evm.o > objs-y$(CONFIG_MACH_OMAP3_BEAGLE) += lcd_omap3beagle.o > diff --git a/drivers/video/omap/lcd_ldp.c b/drivers/video/omap/lcd_ldp.c > new file mode 100644 > index 0000000..e944166 > --- /dev/null > +++ b/drivers/video/omap/lcd_ldp.c > @@ -0,0 +1,200 @@ > +/* > + * LCD panel support for the TI LDP board > + * > + * Copyright (C) 2007 WindRiver > + * Author: Stanley Miao <stanley.miao@xxxxxxxxxxxxx> > + * > + * Derived from drivers/video/omap/lcd-2430sdp.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/delay.h> > +#include <linux/i2c/twl4030.h> > + > +#include <mach/gpio.h> > +#include <mach/mux.h> > +#include <mach/omapfb.h> > +#include <asm/mach-types.h> > + > +#define LCD_PANEL_BACKLIGHT_GPIO (15 + OMAP_MAX_GPIO_LINES) > +#define LCD_PANEL_ENABLE_GPIO (7 + OMAP_MAX_GPIO_LINES) > + > +#define LCD_PANEL_RESET_GPIO 55 > +#define LCD_PANEL_QVGA_GPIO 56 > + > +#ifdef CONFIG_FB_OMAP_LCD_VGA > +#define LCD_XRES 480 > +#define LCD_YRES 640 > +#define LCD_PIXCLOCK_MAX 41700 > +#else > +#define LCD_XRES 240 > +#define LCD_YRES 320 > +#define LCD_PIXCLOCK_MAX 185186 > +#endif > + > +#define PM_RECEIVER TWL4030_MODULE_PM_RECEIVER > +#define ENABLE_VAUX2_DEDICATED 0x09 > +#define ENABLE_VAUX2_DEV_GRP 0x20 > +#define ENABLE_VAUX3_DEDICATED 0x03 > +#define ENABLE_VAUX3_DEV_GRP 0x20 > + > +#define ENABLE_VPLL2_DEDICATED 0x05 > +#define ENABLE_VPLL2_DEV_GRP 0xE0 > +#define TWL4030_VPLL2_DEV_GRP 0x33 > +#define TWL4030_VPLL2_DEDICATED 0x36 > + > +#define t2_out(c, r, v) twl4030_i2c_write_u8(c, r, v) > + > + > +static int ldp_panel_init(struct lcd_panel *panel, > + struct omapfb_device *fbdev) > +{ > + omap_request_gpio(LCD_PANEL_RESET_GPIO); > + omap_request_gpio(LCD_PANEL_QVGA_GPIO); > + gpio_request(LCD_PANEL_ENABLE_GPIO, "lcd panel"); > + gpio_request(LCD_PANEL_BACKLIGHT_GPIO, "lcd backlight"); > + > + omap_set_gpio_direction(LCD_PANEL_QVGA_GPIO, 0); > + omap_set_gpio_direction(LCD_PANEL_RESET_GPIO, 0); > + gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0); > + gpio_direction_output(LCD_PANEL_BACKLIGHT_GPIO, 0); > + > +#ifdef CONFIG_FB_OMAP_LCD_VGA > + omap_set_gpio_dataout(LCD_PANEL_QVGA_GPIO, 0); > +#else > + omap_set_gpio_dataout(LCD_PANEL_QVGA_GPIO, 1); > +#endif > + omap_set_gpio_dataout(LCD_PANEL_RESET_GPIO, 1); > + > + return 0; > +} > + > +static void ldp_panel_cleanup(struct lcd_panel *panel) > +{ > + omap_free_gpio(LCD_PANEL_RESET_GPIO); > + omap_free_gpio(LCD_PANEL_QVGA_GPIO); > + gpio_free(LCD_PANEL_ENABLE_GPIO); > + gpio_free(LCD_PANEL_BACKLIGHT_GPIO); > +} > + > +static int ldp_panel_enable(struct lcd_panel *panel) > +{ > + if (0 != t2_out(PM_RECEIVER, ENABLE_VPLL2_DEDICATED, > + TWL4030_VPLL2_DEDICATED)) > + return -EIO; > + if (0 != t2_out(PM_RECEIVER, ENABLE_VPLL2_DEV_GRP, > + TWL4030_VPLL2_DEV_GRP)) > + return -EIO; > + > + gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 1); > + gpio_direction_output(LCD_PANEL_BACKLIGHT_GPIO, 1); > + > + if (0 != t2_out(PM_RECEIVER, ENABLE_VAUX3_DEDICATED, > + TWL4030_VAUX3_DEDICATED)) > + return -EIO; > + if (0 != t2_out(PM_RECEIVER, ENABLE_VAUX3_DEV_GRP, > + TWL4030_VAUX3_DEV_GRP)) > + return -EIO; > + > + return 0; > +} > + > +static void ldp_panel_disable(struct lcd_panel *panel) > +{ > + gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0); > + gpio_direction_output(LCD_PANEL_BACKLIGHT_GPIO, 0); > + > + t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEDICATED); > + t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEV_GRP); > + mdelay(4); > +} > + > +static unsigned long ldp_panel_get_caps(struct lcd_panel *panel) > +{ > + return 0; > +} > + > +struct lcd_panel ldp_panel = { > + .name = "ldp", > + .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 = ldp_panel_init, > + .cleanup = ldp_panel_cleanup, > + .enable = ldp_panel_enable, > + .disable = ldp_panel_disable, > + .get_caps = ldp_panel_get_caps, > +}; > + > +static int ldp_panel_probe(struct platform_device *pdev) > +{ > + omapfb_register_panel(&ldp_panel); > + return 0; > +} > + > +static int ldp_panel_remove(struct platform_device *pdev) > +{ > + return 0; > +} > + > +static int ldp_panel_suspend(struct platform_device *pdev, pm_message_t mesg) > +{ > + return 0; > +} > + > +static int ldp_panel_resume(struct platform_device *pdev) > +{ > + return 0; > +} > + > +struct platform_driver ldp_panel_driver = { > + .probe = ldp_panel_probe, > + .remove = ldp_panel_remove, > + .suspend = ldp_panel_suspend, > + .resume = ldp_panel_resume, > + .driver = { > + .name = "ldp_lcd", > + .owner = THIS_MODULE, > + }, > +}; > + > +static int __init ldp_panel_drv_init(void) > +{ > + return platform_driver_register(&ldp_panel_driver); > +} > + > +static void __exit ldp_panel_drv_exit(void) > +{ > + platform_driver_unregister(&ldp_panel_driver); > +} > + > +module_init(ldp_panel_drv_init); > +module_exit(ldp_panel_drv_exit); -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html