+++ /dev/null
-/*
- * LCD panel support for the TI 2430SDP board
- *
- * Copyright (C) 2007 MontaVista
- * Author: Hunyue Yau <hyau@mvista.com>
- *
- * 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/delay.h>
-#include <linux/gpio.h>
-#include <linux/i2c/twl.h>
-
-#include <plat/mux.h>
-#include <asm/mach-types.h>
-
-#include "omapfb.h"
-
-#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) twl_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)
-{
- gpio_free(backlight_gpio);
- gpio_free(enable_gpio);
-}
-
-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);
- msleep(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);
projects / linux-beck.git / commitdiff