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Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight

Browse Source 
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
  backlight: Convert corgi backlight driver into a more generic driver
  backlight: Add Samsung LTV350QV LCD driver
  backlight: Fix cr_bllcd allocations and error paths
  backlight/leds: Make two structs static
This commit is contained in:
Linus Torvalds 2007-10-11 19:19:50 -07:00
commit 6f35308c3f
12 changed files with 518 additions and 44 deletions
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18
arch/arm/mach-pxa/corgi.c
View File

@ -20,6 +20,7 @@
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
#include <linux/pm.h>
#include <linux/backlight.h>
#include <asm/setup.h>
#include <asm/memory.h>
@ -142,15 +143,28 @@ struct corgissp_machinfo corgi_ssp_machinfo = {
/*
* Corgi Backlight Device
*/
static struct corgibl_machinfo corgi_bl_machinfo = {
static void corgi_bl_kick_battery(void)
{
void (*kick_batt)(void);
kick_batt = symbol_get(sharpsl_battery_kick);
if (kick_batt) {
kick_batt();
symbol_put(sharpsl_battery_kick);
}
}
static struct generic_bl_info corgi_bl_machinfo = {
.name = "corgi-bl",
.max_intensity = 0x2f,
.default_intensity = 0x1f,
.limit_mask = 0x0b,
.set_bl_intensity = corgi_bl_set_intensity,
.kick_battery = corgi_bl_kick_battery,
};
static struct platform_device corgibl_device = {
.name = "corgi-bl",
.name = "generic-bl",
.dev = {
.parent = &corgifb_device.dev,
.platform_data = &corgi_bl_machinfo,

18
arch/arm/mach-pxa/spitz.c
View File

@ -21,6 +21,7 @@
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
#include <linux/pm.h>
#include <linux/backlight.h>
#include <asm/setup.h>
#include <asm/memory.h>
@ -222,14 +223,27 @@ struct corgissp_machinfo spitz_ssp_machinfo = {
/*
* Spitz Backlight Device
*/
static struct corgibl_machinfo spitz_bl_machinfo = {
static void spitz_bl_kick_battery(void)
{
void (*kick_batt)(void);
kick_batt = symbol_get(sharpsl_battery_kick);
if (kick_batt) {
kick_batt();
symbol_put(sharpsl_battery_kick);
}
}
static struct generic_bl_info spitz_bl_machinfo = {
.name = "corgi-bl",
.default_intensity = 0x1f,
.limit_mask = 0x0b,
.max_intensity = 0x2f,
.kick_battery = spitz_bl_kick_battery,
};
static struct platform_device spitzbl_device = {
.name = "corgi-bl",
.name = "generic-bl",
.dev = {
.platform_data = &spitz_bl_machinfo,
},

23
drivers/video/backlight/Kconfig
View File

@ -24,6 +24,18 @@ config LCD_CLASS_DEVICE
To have support for your specific LCD panel you will have to
select the proper drivers which depend on this option.
config LCD_LTV350QV
tristate "Samsung LTV350QV LCD Panel"
depends on LCD_CLASS_DEVICE && SPI_MASTER
default n
help
If you have a Samsung LTV350QV LCD panel, say y to include a
power control driver for it. The panel starts up in power
off state, so you need this driver in order to see any
output.
The LTV350QV panel is present on all ATSTK1000 boards.
#
# Backlight
#
@ -39,12 +51,13 @@ config BACKLIGHT_CLASS_DEVICE
select the proper drivers which depend on this option.
config BACKLIGHT_CORGI
tristate "Sharp Corgi Backlight Driver (SL Series)"
depends on BACKLIGHT_CLASS_DEVICE && PXA_SHARPSL
default y
tristate "Generic (aka Sharp Corgi) Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE
default n
help
If you have a Sharp Zaurus SL-C7xx, SL-Cxx00 or SL-6000x say y to enable the
backlight driver.
Say y to enable the generic platform backlight driver previously
known as the Corgi backlight driver. If you have a Sharp Zaurus
SL-C7xx, SL-Cxx00 or SL-6000x say y. Most users can say n.
config BACKLIGHT_LOCOMO
tristate "Sharp LOCOMO LCD/Backlight Driver"

2
drivers/video/backlight/Makefile
View File

@ -1,6 +1,8 @@
# Backlight & LCD drivers
obj-$(CONFIG_LCD_CLASS_DEVICE) += lcd.o
obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
obj-$(CONFIG_BACKLIGHT_CORGI) += corgi_bl.o
obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o

2
drivers/video/backlight/backlight.c
View File

@ -164,7 +164,7 @@ static ssize_t backlight_show_actual_brightness(struct device *dev,
return rc;
}
struct class *backlight_class;
static struct class *backlight_class;
static void bl_device_release(struct device *dev)
{

22
drivers/video/backlight/corgi_bl.c
View File

@ -18,13 +18,11 @@
#include <linux/mutex.h>
#include <linux/fb.h>
#include <linux/backlight.h>
#include <asm/arch/sharpsl.h>
#include <asm/hardware/sharpsl_pm.h>
static int corgibl_intensity;
static struct backlight_properties corgibl_data;
static struct backlight_device *corgi_backlight_device;
static struct corgibl_machinfo *bl_machinfo;
static struct generic_bl_info *bl_machinfo;
static unsigned long corgibl_flags;
#define CORGIBL_SUSPENDED 0x01
@ -32,7 +30,6 @@ static unsigned long corgibl_flags;
static int corgibl_send_intensity(struct backlight_device *bd)
{
void (*corgi_kick_batt)(void);
int intensity = bd->props.brightness;
if (bd->props.power != FB_BLANK_UNBLANK)
@ -48,11 +45,8 @@ static int corgibl_send_intensity(struct backlight_device *bd)
corgibl_intensity = intensity;
corgi_kick_batt = symbol_get(sharpsl_battery_kick);
if (corgi_kick_batt) {
corgi_kick_batt();
symbol_put(sharpsl_battery_kick);
}
if (bl_machinfo->kick_battery)
bl_machinfo->kick_battery();
return 0;
}
@ -107,13 +101,17 @@ static struct backlight_ops corgibl_ops = {
static int corgibl_probe(struct platform_device *pdev)
{
struct corgibl_machinfo *machinfo = pdev->dev.platform_data;
struct generic_bl_info *machinfo = pdev->dev.platform_data;
const char *name = "generic-bl";
bl_machinfo = machinfo;
if (!machinfo->limit_mask)
machinfo->limit_mask = -1;
corgi_backlight_device = backlight_device_register ("corgi-bl",
if (machinfo->name)
name = machinfo->name;
corgi_backlight_device = backlight_device_register (name,
&pdev->dev, NULL, &corgibl_ops);
if (IS_ERR (corgi_backlight_device))
return PTR_ERR (corgi_backlight_device);
@ -149,7 +147,7 @@ static struct platform_driver corgibl_driver = {
.suspend = corgibl_suspend,
.resume = corgibl_resume,
.driver = {
.name = "corgi-bl",
.name = "generic-bl",
},
};

35
drivers/video/backlight/cr_bllcd.c
View File

@ -171,13 +171,11 @@ static struct lcd_ops cr_lcd_ops = {
static int cr_backlight_probe(struct platform_device *pdev)
{
struct backlight_device *bdp;
struct lcd_device *ldp;
struct cr_panel *crp;
u8 dev_en;
crp = kzalloc(sizeof(*crp), GFP_KERNEL);
if (crp == NULL)
return -ENOMEM;
lpc_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
CRVML_DEVICE_LPC, NULL);
if (!lpc_dev) {
@ -193,27 +191,34 @@ static int cr_backlight_probe(struct platform_device *pdev)
return -ENODEV;
}
crp->cr_backlight_device = backlight_device_register("cr-backlight",
&pdev->dev, NULL,
&cr_backlight_ops);
if (IS_ERR(crp->cr_backlight_device)) {
bdp = backlight_device_register("cr-backlight",
&pdev->dev, NULL, &cr_backlight_ops);
if (IS_ERR(bdp)) {
pci_dev_put(lpc_dev);
return PTR_ERR(crp->cr_backlight_device);
return PTR_ERR(bdp);
}
crp->cr_lcd_device = lcd_device_register("cr-lcd",
&pdev->dev, NULL,
&cr_lcd_ops);
if (IS_ERR(crp->cr_lcd_device)) {
ldp = lcd_device_register("cr-lcd", &pdev->dev, NULL, &cr_lcd_ops);
if (IS_ERR(ldp)) {
backlight_device_unregister(bdp);
pci_dev_put(lpc_dev);
return PTR_ERR(crp->cr_backlight_device);
return PTR_ERR(bdp);
}
pci_read_config_dword(lpc_dev, CRVML_REG_GPIOBAR,
&gpio_bar);
gpio_bar &= ~0x3F;
crp = kzalloc(sizeof(*crp), GFP_KERNEL);
if (!crp) {
lcd_device_unregister(ldp);
backlight_device_unregister(bdp);
pci_dev_put(lpc_dev);
return -ENOMEM;
}
crp->cr_backlight_device = bdp;
crp->cr_lcd_device = ldp;
crp->cr_backlight_device->props.power = FB_BLANK_UNBLANK;
crp->cr_backlight_device->props.brightness = 0;
crp->cr_backlight_device->props.max_brightness = 0;

2
drivers/video/backlight/lcd.c
View File

@ -149,7 +149,7 @@ static ssize_t lcd_show_max_contrast(struct device *dev,
return sprintf(buf, "%d\n", ld->props.max_contrast);
}
struct class *lcd_class;
static struct class *lcd_class;
static void lcd_device_release(struct device *dev)
{

330
drivers/video/backlight/ltv350qv.c Normal file
View File

@ -0,0 +1,330 @@
/*
* Power control for Samsung LTV350QV Quarter VGA LCD Panel
*
* Copyright (C) 2006, 2007 Atmel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/lcd.h>
#include <linux/module.h>
#include <linux/spi/spi.h>
#include "ltv350qv.h"
#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)
struct ltv350qv {
struct spi_device *spi;
u8 *buffer;
int power;
struct lcd_device *ld;
};
/*
* The power-on and power-off sequences are taken from the
* LTV350QV-F04 data sheet from Samsung. The register definitions are
* taken from the S6F2002 command list also from Samsung. Both
* documents are distributed with the AVR32 Linux BSP CD from Atmel.
*
* There's still some voodoo going on here, but it's a lot better than
* in the first incarnation of the driver where all we had was the raw
* numbers from the initialization sequence.
*/
static int ltv350qv_write_reg(struct ltv350qv *lcd, u8 reg, u16 val)
{
struct spi_message msg;
struct spi_transfer index_xfer = {
.len = 3,
.cs_change = 1,
};
struct spi_transfer value_xfer = {
.len = 3,
};
spi_message_init(&msg);
/* register index */
lcd->buffer[0] = LTV_OPC_INDEX;
lcd->buffer[1] = 0x00;
lcd->buffer[2] = reg & 0x7f;
index_xfer.tx_buf = lcd->buffer;
spi_message_add_tail(&index_xfer, &msg);
/* register value */
lcd->buffer[4] = LTV_OPC_DATA;
lcd->buffer[5] = val >> 8;
lcd->buffer[6] = val;
value_xfer.tx_buf = lcd->buffer + 4;
spi_message_add_tail(&value_xfer, &msg);
return spi_sync(lcd->spi, &msg);
}
/* The comments are taken straight from the data sheet */
static int ltv350qv_power_on(struct ltv350qv *lcd)
{
int ret;
/* Power On Reset Display off State */
if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, 0x0000))
goto err;
msleep(15);
/* Power Setting Function 1 */
if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE))
goto err;
if (ltv350qv_write_reg(lcd, LTV_PWRCTL2, LTV_VCOML_ENABLE))
goto err_power1;
/* Power Setting Function 2 */
if (ltv350qv_write_reg(lcd, LTV_PWRCTL1,
LTV_VCOM_DISABLE | LTV_DRIVE_CURRENT(5)
| LTV_SUPPLY_CURRENT(5)))
goto err_power2;
msleep(55);
/* Instruction Setting */
ret = ltv350qv_write_reg(lcd, LTV_IFCTL,
LTV_NMD | LTV_REV | LTV_NL(0x1d));
ret |= ltv350qv_write_reg(lcd, LTV_DATACTL,
LTV_DS_SAME | LTV_CHS_480
| LTV_DF_RGB | LTV_RGB_BGR);
ret |= ltv350qv_write_reg(lcd, LTV_ENTRY_MODE,
LTV_VSPL_ACTIVE_LOW
| LTV_HSPL_ACTIVE_LOW
| LTV_DPL_SAMPLE_RISING
| LTV_EPL_ACTIVE_LOW
| LTV_SS_RIGHT_TO_LEFT);
ret |= ltv350qv_write_reg(lcd, LTV_GATECTL1, LTV_CLW(3));
ret |= ltv350qv_write_reg(lcd, LTV_GATECTL2,
LTV_NW_INV_1LINE | LTV_FWI(3));
ret |= ltv350qv_write_reg(lcd, LTV_VBP, 0x000a);
ret |= ltv350qv_write_reg(lcd, LTV_HBP, 0x0021);
ret |= ltv350qv_write_reg(lcd, LTV_SOTCTL, LTV_SDT(3) | LTV_EQ(0));
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(0), 0x0103);
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(1), 0x0301);
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(2), 0x1f0f);
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(3), 0x1f0f);
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(4), 0x0707);
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(5), 0x0307);
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(6), 0x0707);
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(7), 0x0000);
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(8), 0x0004);
ret |= ltv350qv_write_reg(lcd, LTV_GAMMA(9), 0x0000);
if (ret)
goto err_settings;
/* Wait more than 2 frames */
msleep(20);
/* Display On Sequence */
ret = ltv350qv_write_reg(lcd, LTV_PWRCTL1,
LTV_VCOM_DISABLE | LTV_VCOMOUT_ENABLE
| LTV_POWER_ON | LTV_DRIVE_CURRENT(5)
| LTV_SUPPLY_CURRENT(5));
ret |= ltv350qv_write_reg(lcd, LTV_GATECTL2,
LTV_NW_INV_1LINE | LTV_DSC | LTV_FWI(3));
if (ret)
goto err_disp_on;
/* Display should now be ON. Phew. */
return 0;
err_disp_on:
/*
* Try to recover. Error handling probably isn't very useful
* at this point, just make a best effort to switch the panel
* off.
*/
ltv350qv_write_reg(lcd, LTV_PWRCTL1,
LTV_VCOM_DISABLE | LTV_DRIVE_CURRENT(5)
| LTV_SUPPLY_CURRENT(5));
ltv350qv_write_reg(lcd, LTV_GATECTL2,
LTV_NW_INV_1LINE | LTV_FWI(3));
err_settings:
err_power2:
err_power1:
ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000);
msleep(1);
err:
ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE);
return -EIO;
}
static int ltv350qv_power_off(struct ltv350qv *lcd)
{
int ret;
/* Display Off Sequence */
ret = ltv350qv_write_reg(lcd, LTV_PWRCTL1,
LTV_VCOM_DISABLE
| LTV_DRIVE_CURRENT(5)
| LTV_SUPPLY_CURRENT(5));
ret |= ltv350qv_write_reg(lcd, LTV_GATECTL2,
LTV_NW_INV_1LINE | LTV_FWI(3));
/* Power down setting 1 */
ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000);
/* Wait at least 1 ms */
msleep(1);
/* Power down setting 2 */
ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE);
/*
* No point in trying to recover here. If we can't switch the
* panel off, what are we supposed to do other than inform the
* user about the failure?
*/
if (ret)
return -EIO;
/* Display power should now be OFF */
return 0;
}
static int ltv350qv_power(struct ltv350qv *lcd, int power)
{
int ret = 0;
if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
ret = ltv350qv_power_on(lcd);
else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
ret = ltv350qv_power_off(lcd);
if (!ret)
lcd->power = power;
return ret;
}
static int ltv350qv_set_power(struct lcd_device *ld, int power)
{
struct ltv350qv *lcd = lcd_get_data(ld);
return ltv350qv_power(lcd, power);
}
static int ltv350qv_get_power(struct lcd_device *ld)
{
struct ltv350qv *lcd = lcd_get_data(ld);
return lcd->power;
}
static struct lcd_ops ltv_ops = {
.get_power = ltv350qv_get_power,
.set_power = ltv350qv_set_power,
};
static int __devinit ltv350qv_probe(struct spi_device *spi)
{
struct ltv350qv *lcd;
struct lcd_device *ld;
int ret;
lcd = kzalloc(sizeof(struct ltv350qv), GFP_KERNEL);
if (!lcd)
return -ENOMEM;
lcd->spi = spi;
lcd->power = FB_BLANK_POWERDOWN;
lcd->buffer = kzalloc(8, GFP_KERNEL);
ld = lcd_device_register("ltv350qv", &spi->dev, lcd, &ltv_ops);
if (IS_ERR(ld)) {
ret = PTR_ERR(ld);
goto out_free_lcd;
}
lcd->ld = ld;
ret = ltv350qv_power(lcd, FB_BLANK_UNBLANK);
if (ret)
goto out_unregister;
dev_set_drvdata(&spi->dev, lcd);
return 0;
out_unregister:
lcd_device_unregister(ld);
out_free_lcd:
kfree(lcd);
return ret;
}
static int __devexit ltv350qv_remove(struct spi_device *spi)
{
struct ltv350qv *lcd = dev_get_drvdata(&spi->dev);
ltv350qv_power(lcd, FB_BLANK_POWERDOWN);
lcd_device_unregister(lcd->ld);
kfree(lcd);
return 0;
}
#ifdef CONFIG_PM
static int ltv350qv_suspend(struct spi_device *spi, pm_message_t state)
{
struct ltv350qv *lcd = dev_get_drvdata(&spi->dev);
return ltv350qv_power(lcd, FB_BLANK_POWERDOWN);
}
static int ltv350qv_resume(struct spi_device *spi)
{
struct ltv350qv *lcd = dev_get_drvdata(&spi->dev);
return ltv350qv_power(lcd, FB_BLANK_UNBLANK);
}
#else
#define ltv350qv_suspend NULL
#define ltv350qv_resume NULL
#endif
/* Power down all displays on reboot, poweroff or halt */
static void ltv350qv_shutdown(struct spi_device *spi)
{
struct ltv350qv *lcd = dev_get_drvdata(&spi->dev);
ltv350qv_power(lcd, FB_BLANK_POWERDOWN);
}
static struct spi_driver ltv350qv_driver = {
.driver = {
.name = "ltv350qv",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.probe = ltv350qv_probe,
.remove = __devexit_p(ltv350qv_remove),
.shutdown = ltv350qv_shutdown,
.suspend = ltv350qv_suspend,
.resume = ltv350qv_resume,
};
static int __init ltv350qv_init(void)
{
return spi_register_driver(&ltv350qv_driver);
}
static void __exit ltv350qv_exit(void)
{
spi_unregister_driver(&ltv350qv_driver);
}
module_init(ltv350qv_init);
module_exit(ltv350qv_exit);
MODULE_AUTHOR("Haavard Skinnemoen <hskinnemoen@atmel.com>");
MODULE_DESCRIPTION("Samsung LTV350QV LCD Driver");
MODULE_LICENSE("GPL");

95
drivers/video/backlight/ltv350qv.h Normal file
View File

@ -0,0 +1,95 @@
/*
* Register definitions for Samsung LTV350QV Quarter VGA LCD Panel
*
* Copyright (C) 2006, 2007 Atmel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __LTV350QV_H
#define __LTV350QV_H
#define LTV_OPC_INDEX 0x74
#define LTV_OPC_DATA 0x76
#define LTV_ID 0x00 /* ID Read */
#define LTV_IFCTL 0x01 /* Display Interface Control */
#define LTV_DATACTL 0x02 /* Display Data Control */
#define LTV_ENTRY_MODE 0x03 /* Entry Mode */
#define LTV_GATECTL1 0x04 /* Gate Control 1 */
#define LTV_GATECTL2 0x05 /* Gate Control 2 */
#define LTV_VBP 0x06 /* Vertical Back Porch */
#define LTV_HBP 0x07 /* Horizontal Back Porch */
#define LTV_SOTCTL 0x08 /* Source Output Timing Control */
#define LTV_PWRCTL1 0x09 /* Power Control 1 */
#define LTV_PWRCTL2 0x0a /* Power Control 2 */
#define LTV_GAMMA(x) (0x10 + (x)) /* Gamma control */
/* Bit definitions for LTV_IFCTL */
#define LTV_IM (1 << 15)
#define LTV_NMD (1 << 14)
#define LTV_SSMD (1 << 13)
#define LTV_REV (1 << 7)
#define LTV_NL(x) (((x) & 0x001f) << 0)
/* Bit definitions for LTV_DATACTL */
#define LTV_DS_SAME (0 << 12)
#define LTV_DS_D_TO_S (1 << 12)
#define LTV_DS_S_TO_D (2 << 12)
#define LTV_CHS_384 (0 << 9)
#define LTV_CHS_480 (1 << 9)
#define LTV_CHS_492 (2 << 9)
#define LTV_DF_RGB (0 << 6)
#define LTV_DF_RGBX (1 << 6)
#define LTV_DF_XRGB (2 << 6)
#define LTV_RGB_RGB (0 << 2)
#define LTV_RGB_BGR (1 << 2)
#define LTV_RGB_GRB (2 << 2)
#define LTV_RGB_RBG (3 << 2)
/* Bit definitions for LTV_ENTRY_MODE */
#define LTV_VSPL_ACTIVE_LOW (0 << 15)
#define LTV_VSPL_ACTIVE_HIGH (1 << 15)
#define LTV_HSPL_ACTIVE_LOW (0 << 14)
#define LTV_HSPL_ACTIVE_HIGH (1 << 14)
#define LTV_DPL_SAMPLE_RISING (0 << 13)
#define LTV_DPL_SAMPLE_FALLING (1 << 13)
#define LTV_EPL_ACTIVE_LOW (0 << 12)
#define LTV_EPL_ACTIVE_HIGH (1 << 12)
#define LTV_SS_LEFT_TO_RIGHT (0 << 8)
#define LTV_SS_RIGHT_TO_LEFT (1 << 8)
#define LTV_STB (1 << 1)
/* Bit definitions for LTV_GATECTL1 */
#define LTV_CLW(x) (((x) & 0x0007) << 12)
#define LTV_GAON (1 << 5)
#define LTV_SDR (1 << 3)
/* Bit definitions for LTV_GATECTL2 */
#define LTV_NW_INV_FRAME (0 << 14)
#define LTV_NW_INV_1LINE (1 << 14)
#define LTV_NW_INV_2LINE (2 << 14)
#define LTV_DSC (1 << 12)
#define LTV_GIF (1 << 8)
#define LTV_FHN (1 << 7)
#define LTV_FTI(x) (((x) & 0x0003) << 4)
#define LTV_FWI(x) (((x) & 0x0003) << 0)
/* Bit definitions for LTV_SOTCTL */
#define LTV_SDT(x) (((x) & 0x0007) << 10)
#define LTV_EQ(x) (((x) & 0x0007) << 2)
/* Bit definitions for LTV_PWRCTL1 */
#define LTV_VCOM_DISABLE (1 << 14)
#define LTV_VCOMOUT_ENABLE (1 << 11)
#define LTV_POWER_ON (1 << 9)
#define LTV_DRIVE_CURRENT(x) (((x) & 0x0007) << 4) /* 0=off, 5=max */
#define LTV_SUPPLY_CURRENT(x) (((x) & 0x0007) << 0) /* 0=off, 5=max */
/* Bit definitions for LTV_PWRCTL2 */
#define LTV_VCOML_ENABLE (1 << 13)
#define LTV_VCOML_VOLTAGE(x) (((x) & 0x001f) << 8) /* 0=1V, 31=-1V */
#define LTV_VCOMH_VOLTAGE(x) (((x) & 0x001f) << 0) /* 0=3V, 31=4.5V */
#endif /* __LTV350QV_H */

6
include/asm-arm/arch-pxa/sharpsl.h
View File

@ -25,12 +25,6 @@ struct corgits_machinfo {
/*
* SharpSL Backlight
*/
struct corgibl_machinfo {
int max_intensity;
int default_intensity;
int limit_mask;
void (*set_bl_intensity)(int intensity);
};
extern void corgibl_limit_intensity(int limit);

9
include/linux/backlight.h
View File

@ -92,4 +92,13 @@ static inline void * bl_get_data(struct backlight_device *bl_dev)
return dev_get_drvdata(&bl_dev->dev);
}
struct generic_bl_info {
const char *name;
int max_intensity;
int default_intensity;
int limit_mask;
void (*set_bl_intensity)(int intensity);
void (*kick_battery)(void);
};
#endif