X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?p=linux-2.6-omap-h63xx.git;a=blobdiff_plain;f=drivers%2Fvideo%2Fomap%2Flcd_2430sdp.c;fp=drivers%2Fvideo%2Fomap%2Flcd_2430sdp.c;h=a22b452c4d5e32f841b9f266e68e14664521aef5;hp=0000000000000000000000000000000000000000;hb=0d5f2216edfeb9904e0d6512f803b0f93871baaf;hpb=14fc69723d3442ef46f8f82b3f481e82f06a346d diff --git a/drivers/video/omap/lcd_2430sdp.c b/drivers/video/omap/lcd_2430sdp.c new file mode 100644 index 00000000000..a22b452c4d5 --- /dev/null +++ b/drivers/video/omap/lcd_2430sdp.c @@ -0,0 +1,199 @@ +/* + * LCD panel support for the TI 2430SDP board + * + * Copyright (C) 2007 MontaVista + * Author: Hunyue Yau + * + * 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 +#include + +#define SDP2430_LCD_PANEL_BACKLIGHT_GPIO 91 +#define SDP2430_LCD_PANEL_ENABLE_GPIO 154 +#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 24 +#define SDP3430_LCD_PANEL_ENABLE_GPIO 28 + +static unsigned backlight_gpio; +static unsigned enable_gpio; + +#define LCD_PIXCLOCK_MAX 5400 /* freq 5.4 MHz */ +#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 sdp2430_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + if (machine_is_omap_3430sdp()) { + enable_gpio = SDP3430_LCD_PANEL_ENABLE_GPIO; + backlight_gpio = SDP3430_LCD_PANEL_BACKLIGHT_GPIO; + } else { + enable_gpio = SDP2430_LCD_PANEL_ENABLE_GPIO; + backlight_gpio = SDP2430_LCD_PANEL_BACKLIGHT_GPIO; + } + + gpio_request(enable_gpio, "LCD enable"); /* LCD panel */ + gpio_request(backlight_gpio, "LCD bl"); /* LCD backlight */ + gpio_direction_output(enable_gpio, 0); + gpio_direction_output(backlight_gpio, 0); + + return 0; +} + +static void sdp2430_panel_cleanup(struct lcd_panel *panel) +{ +} + +static int sdp2430_panel_enable(struct lcd_panel *panel) +{ + u8 ded_val, ded_reg; + u8 grp_val, grp_reg; + + if (machine_is_omap_3430sdp()) { + ded_reg = TWL4030_VAUX3_DEDICATED; + ded_val = ENABLE_VAUX3_DEDICATED; + grp_reg = TWL4030_VAUX3_DEV_GRP; + grp_val = ENABLE_VAUX3_DEV_GRP; + + if (omap_rev() > OMAP3430_REV_ES1_0) { + t2_out(PM_RECEIVER, ENABLE_VPLL2_DEDICATED, + TWL4030_VPLL2_DEDICATED); + t2_out(PM_RECEIVER, ENABLE_VPLL2_DEV_GRP, + TWL4030_VPLL2_DEV_GRP); + } + } else { + ded_reg = TWL4030_VAUX2_DEDICATED; + ded_val = ENABLE_VAUX2_DEDICATED; + grp_reg = TWL4030_VAUX2_DEV_GRP; + grp_val = ENABLE_VAUX2_DEV_GRP; + } + + gpio_set_value(enable_gpio, 1); + gpio_set_value(backlight_gpio, 1); + + if (0 != t2_out(PM_RECEIVER, ded_val, ded_reg)) + return -EIO; + if (0 != t2_out(PM_RECEIVER, grp_val, grp_reg)) + return -EIO; + + return 0; +} + +static void sdp2430_panel_disable(struct lcd_panel *panel) +{ + gpio_set_value(enable_gpio, 0); + gpio_set_value(backlight_gpio, 0); + if (omap_rev() > OMAP3430_REV_ES1_0) { + t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEDICATED); + t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEV_GRP); + mdelay(4); + } +} + +static unsigned long sdp2430_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel sdp2430_panel = { + .name = "sdp2430", + .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | + OMAP_LCDC_INV_HSYNC, + + .bpp = 16, + .data_lines = 16, + .x_res = 240, + .y_res = 320, + .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 = sdp2430_panel_init, + .cleanup = sdp2430_panel_cleanup, + .enable = sdp2430_panel_enable, + .disable = sdp2430_panel_disable, + .get_caps = sdp2430_panel_get_caps, +}; + +static int sdp2430_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&sdp2430_panel); + return 0; +} + +static int sdp2430_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int sdp2430_panel_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + return 0; +} + +static int sdp2430_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver sdp2430_panel_driver = { + .probe = sdp2430_panel_probe, + .remove = sdp2430_panel_remove, + .suspend = sdp2430_panel_suspend, + .resume = sdp2430_panel_resume, + .driver = { + .name = "sdp2430_lcd", + .owner = THIS_MODULE, + }, +}; + +static int __init sdp2430_panel_drv_init(void) +{ + return platform_driver_register(&sdp2430_panel_driver); +} + +static void __exit sdp2430_panel_drv_exit(void) +{ + platform_driver_unregister(&sdp2430_panel_driver); +} + +module_init(sdp2430_panel_drv_init); +module_exit(sdp2430_panel_drv_exit);