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yaml
---
r: 164825
b: refs/heads/master
c: 3a76a81
h: refs/heads/master
i:
  164823: f8d031c
v: v3
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Hunyue Yau authored and Linus Torvalds committed Sep 23, 2009
1 parent fa8c3ea commit 6fc9d96
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 92e0ed074a4f134084bef47a44e948b6c6429a89
refs/heads/master: 3a76a819dda9a6de0ab83d04b48b3735a4d10b89
1 change: 1 addition & 0 deletions trunk/drivers/video/omap/Makefile
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Expand Up @@ -26,6 +26,7 @@ objs-$(CONFIG_ARCH_OMAP15XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1510.o
objs-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o

objs-y$(CONFIG_MACH_OMAP_APOLLON) += lcd_apollon.o
objs-y$(CONFIG_MACH_OMAP_2430SDP) += lcd_2430sdp.o
objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o

omapfb-objs := $(objs-yy)
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198 changes: 198 additions & 0 deletions trunk/drivers/video/omap/lcd_2430sdp.c
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/*
* 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/twl4030.h>

#include <mach/mux.h>
#include <mach/omapfb.h>
#include <asm/mach-types.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_PANEL_BACKLIGHT_GPIO 91
#define LCD_PANEL_ENABLE_GPIO 154
#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 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)
{
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);

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