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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:
  gta02: Use pcf50633 backlight driver instead of platform backlight driver.
  backlight: pcf50633: Register a pcf50633-backlight device in pcf50633 core driver.
  backlight: Add pcf50633 backlight driver
  backlight: 88pm860x_bl: fix error handling in pm860x_backlight_probe
  backlight: max8925_bl: Fix error handling path
  backlight: l4f00242t03: fix error handling in l4f00242t03_probe
  backlight: add S6E63M0 AMOLED LCD Panel driver
  backlight: adp8860: add support for ADP8861 & ADP8863
  backlight: mbp_nvidia_bl - Fix DMI_SYS_VENDOR for MacBook1,1
  backlight: Add Cirrus EP93xx backlight driver
  backlight: l4f00242t03: Fix regulators handling code in remove function
  backlight: fix adp8860_bl build errors
  backlight: new driver for the ADP8860 backlight parts
  backlight: 88pm860x_bl - potential memory leak
  backlight: mbp_nvidia_bl - add support for older MacBookPro and MacBook 6,1.
  backlight: Kconfig cleanup
  backlight: backlight_device_register() return ERR_PTR()
This commit is contained in:
Linus Torvalds 2010-05-27 11:34:55 -07:00
commit cad719d86e
18 changed files with 2750 additions and 120 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
arch/arm/mach-s3c2440/mach-gta02.c
View File

@ -49,7 +49,6 @@
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/backlight.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/pcf50633/core.h>
@ -57,6 +56,7 @@
#include <linux/mfd/pcf50633/adc.h>
#include <linux/mfd/pcf50633/gpio.h>
#include <linux/mfd/pcf50633/pmic.h>
#include <linux/mfd/pcf50633/backlight.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@ -254,6 +254,12 @@ static char *gta02_batteries[] = {
"battery",
};
static struct pcf50633_bl_platform_data gta02_backlight_data = {
.default_brightness = 0x3f,
.default_brightness_limit = 0,
.ramp_time = 5,
};
struct pcf50633_platform_data gta02_pcf_pdata = {
.resumers = {
[0] = PCF50633_INT1_USBINS |
@ -271,6 +277,8 @@ struct pcf50633_platform_data gta02_pcf_pdata = {
.charger_reference_current_ma = 1000,
.backlight_data = &gta02_backlight_data,
.reg_init_data = {
[PCF50633_REGULATOR_AUTO] = {
.constraints = {
@ -478,71 +486,6 @@ static struct s3c2410_udc_mach_info gta02_udc_cfg = {
};
static void gta02_bl_set_intensity(int intensity)
{
struct pcf50633 *pcf = gta02_pcf;
int old_intensity = pcf50633_reg_read(pcf, PCF50633_REG_LEDOUT);
/* We map 8-bit intensity to 6-bit intensity in hardware. */
intensity >>= 2;
/*
* This can happen during, eg, print of panic on blanked console,
* but we can't service i2c without interrupts active, so abort.
*/
if (in_atomic()) {
printk(KERN_ERR "gta02_bl_set_intensity called while atomic\n");
return;
}
old_intensity = pcf50633_reg_read(pcf, PCF50633_REG_LEDOUT);
if (intensity == old_intensity)
return;
/* We can't do this anywhere else. */
pcf50633_reg_write(pcf, PCF50633_REG_LEDDIM, 5);
if (!(pcf50633_reg_read(pcf, PCF50633_REG_LEDENA) & 3))
old_intensity = 0;
/*
* The PCF50633 cannot handle LEDOUT = 0 (datasheet p60)
* if seen, you have to re-enable the LED unit.
*/
if (!intensity || !old_intensity)
pcf50633_reg_write(pcf, PCF50633_REG_LEDENA, 0);
/* Illegal to set LEDOUT to 0. */
if (!intensity)
pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f, 2);
else
pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f,
intensity);
if (intensity)
pcf50633_reg_write(pcf, PCF50633_REG_LEDENA, 2);
}
static struct generic_bl_info gta02_bl_info = {
.name = "gta02-bl",
.max_intensity = 0xff,
.default_intensity = 0xff,
.set_bl_intensity = gta02_bl_set_intensity,
};
static struct platform_device gta02_bl_dev = {
.name = "generic-bl",
.id = 1,
.dev = {
.platform_data = &gta02_bl_info,
},
};
/* USB */
static struct s3c2410_hcd_info gta02_usb_info __initdata = {
.port[0] = {
@ -579,7 +522,6 @@ static struct platform_device *gta02_devices[] __initdata = {
/* These guys DO need to be children of PMU. */
static struct platform_device *gta02_devices_pmu_children[] = {
&gta02_bl_dev,
};

3
drivers/mfd/pcf50633-core.c
View File

@ -620,6 +620,9 @@ static int __devinit pcf50633_probe(struct i2c_client *client,
&pcf->mbc_pdev);
pcf50633_client_dev_register(pcf, "pcf50633-adc",
&pcf->adc_pdev);
pcf50633_client_dev_register(pcf, "pcf50633-backlight",
&pcf->bl_pdev);
for (i = 0; i < PCF50633_NUM_REGULATORS; i++) {
struct platform_device *pdev;

2
drivers/video/backlight/88pm860x_bl.c
View File

@ -222,6 +222,7 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
data->port = __check_device(pdata, name);
if (data->port < 0) {
dev_err(&pdev->dev, "wrong platform data is assigned");
kfree(data);
return -EINVAL;
}
@ -266,6 +267,7 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
backlight_update_status(bl);
return 0;
out:
backlight_device_unregister(bl);
kfree(data);
return ret;
}

116
drivers/video/backlight/Kconfig
View File

@ -8,12 +8,13 @@ menuconfig BACKLIGHT_LCD_SUPPORT
Enable this to be able to choose the drivers for controlling the
backlight and the LCD panel on some platforms, for example on PDAs.
if BACKLIGHT_LCD_SUPPORT
#
# LCD
#
config LCD_CLASS_DEVICE
tristate "Lowlevel LCD controls"
depends on BACKLIGHT_LCD_SUPPORT
default m
help
This framework adds support for low-level control of LCD.
@ -24,31 +25,32 @@ 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.
if LCD_CLASS_DEVICE
config LCD_CORGI
tristate "LCD Panel support for SHARP corgi/spitz model"
depends on LCD_CLASS_DEVICE && SPI_MASTER && PXA_SHARPSL
depends on SPI_MASTER && PXA_SHARPSL
help
Say y here to support the LCD panels usually found on SHARP
corgi (C7x0) and spitz (Cxx00) models.
config LCD_L4F00242T03
tristate "Epson L4F00242T03 LCD"
depends on LCD_CLASS_DEVICE && SPI_MASTER && GENERIC_GPIO
depends on SPI_MASTER && GENERIC_GPIO
help
SPI driver for Epson L4F00242T03. This provides basic support
for init and powering the LCD up/down through a sysfs interface.
config LCD_LMS283GF05
tristate "Samsung LMS283GF05 LCD"
depends on LCD_CLASS_DEVICE && SPI_MASTER && GENERIC_GPIO
depends on SPI_MASTER && GENERIC_GPIO
help
SPI driver for Samsung LMS283GF05. This provides basic support
for powering the LCD up/down through a sysfs interface.
config LCD_LTV350QV
tristate "Samsung LTV350QV LCD Panel"
depends on LCD_CLASS_DEVICE && SPI_MASTER
default n
depends on SPI_MASTER
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
@ -59,60 +61,61 @@ config LCD_LTV350QV
config LCD_ILI9320
tristate
depends on LCD_CLASS_DEVICE && BACKLIGHT_LCD_SUPPORT
default n
help
If you have a panel based on the ILI9320 controller chip
then say y to include a power driver for it.
config LCD_TDO24M
tristate "Toppoly TDO24M and TDO35S LCD Panels support"
depends on LCD_CLASS_DEVICE && SPI_MASTER
default n
depends on SPI_MASTER
help
If you have a Toppoly TDO24M/TDO35S series LCD panel, say y here to
include the support for it.
config LCD_VGG2432A4
tristate "VGG2432A4 LCM device support"
depends on BACKLIGHT_LCD_SUPPORT && LCD_CLASS_DEVICE && SPI_MASTER
depends on SPI_MASTER
select LCD_ILI9320
default n
help
If you have a VGG2432A4 panel based on the ILI9320 controller chip
then say y to include a power driver for it.
config LCD_PLATFORM
tristate "Platform LCD controls"
depends on LCD_CLASS_DEVICE
help
This driver provides a platform-device registered LCD power
control interface.
config LCD_TOSA
tristate "Sharp SL-6000 LCD Driver"
depends on LCD_CLASS_DEVICE && SPI
depends on MACH_TOSA
default n
depends on SPI && MACH_TOSA
help
If you have an Sharp SL-6000 Zaurus say Y to enable a driver
for its LCD.
config LCD_HP700
tristate "HP Jornada 700 series LCD Driver"
depends on LCD_CLASS_DEVICE
depends on SA1100_JORNADA720_SSP && !PREEMPT
default y
help
If you have an HP Jornada 700 series handheld (710/720/728)
say Y to enable LCD control driver.
config LCD_S6E63M0
tristate "S6E63M0 AMOLED LCD Driver"
depends on SPI && BACKLIGHT_CLASS_DEVICE
default n
help
If you have an S6E63M0 LCD Panel, say Y to enable its
LCD control driver.
endif # LCD_CLASS_DEVICE
#
# Backlight
#
config BACKLIGHT_CLASS_DEVICE
tristate "Lowlevel Backlight controls"
depends on BACKLIGHT_LCD_SUPPORT
default m
help
This framework adds support for low-level control of the LCD
@ -121,9 +124,11 @@ config BACKLIGHT_CLASS_DEVICE
To have support for your specific LCD panel you will have to
select the proper drivers which depend on this option.
if BACKLIGHT_CLASS_DEVICE
config BACKLIGHT_ATMEL_LCDC
bool "Atmel LCDC Contrast-as-Backlight control"
depends on BACKLIGHT_CLASS_DEVICE && FB_ATMEL
depends on FB_ATMEL
default y if MACH_SAM9261EK || MACH_SAM9G10EK || MACH_SAM9263EK
help
This provides a backlight control internal to the Atmel LCDC
@ -136,8 +141,7 @@ config BACKLIGHT_ATMEL_LCDC
config BACKLIGHT_ATMEL_PWM
tristate "Atmel PWM backlight control"
depends on BACKLIGHT_CLASS_DEVICE && ATMEL_PWM
default n
depends on ATMEL_PWM
help
Say Y here if you want to use the PWM peripheral in Atmel AT91 and
AVR32 devices. This driver will need additional platform data to know
@ -146,9 +150,18 @@ config BACKLIGHT_ATMEL_PWM
To compile this driver as a module, choose M here: the module will be
called atmel-pwm-bl.
config BACKLIGHT_EP93XX
tristate "Cirrus EP93xx Backlight Driver"
depends on FB_EP93XX
help
If you have a LCD backlight connected to the BRIGHT output of
the EP93xx, say Y here to enable this driver.
To compile this driver as a module, choose M here: the module will
be called ep93xx_bl.
config BACKLIGHT_GENERIC
tristate "Generic (aka Sharp Corgi) Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE
default y
help
Say y to enable the generic platform backlight driver previously
@ -157,7 +170,7 @@ config BACKLIGHT_GENERIC
config BACKLIGHT_LOCOMO
tristate "Sharp LOCOMO LCD/Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && SHARP_LOCOMO
depends on SHARP_LOCOMO
default y
help
If you have a Sharp Zaurus SL-5500 (Collie) or SL-5600 (Poodle) say y to
@ -165,7 +178,7 @@ config BACKLIGHT_LOCOMO
config BACKLIGHT_OMAP1
tristate "OMAP1 PWL-based LCD Backlight"
depends on BACKLIGHT_CLASS_DEVICE && ARCH_OMAP1
depends on ARCH_OMAP1
default y
help
This driver controls the LCD backlight level and power for
@ -174,7 +187,7 @@ config BACKLIGHT_OMAP1
config BACKLIGHT_HP680
tristate "HP Jornada 680 Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && SH_HP6XX
depends on SH_HP6XX
default y
help
If you have a HP Jornada 680, say y to enable the
@ -182,7 +195,6 @@ config BACKLIGHT_HP680
config BACKLIGHT_HP700
tristate "HP Jornada 700 series Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE
depends on SA1100_JORNADA720_SSP && !PREEMPT
default y
help
@ -191,76 +203,70 @@ config BACKLIGHT_HP700
config BACKLIGHT_PROGEAR
tristate "Frontpath ProGear Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && PCI && X86
default n
depends on PCI && X86
help
If you have a Frontpath ProGear say Y to enable the
backlight driver.
config BACKLIGHT_CARILLO_RANCH
tristate "Intel Carillo Ranch Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && LCD_CLASS_DEVICE && PCI && X86 && FB_LE80578
default n
depends on LCD_CLASS_DEVICE && PCI && X86 && FB_LE80578
help
If you have a Intel LE80578 (Carillo Ranch) say Y to enable the
backlight driver.
config BACKLIGHT_PWM
tristate "Generic PWM based Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && HAVE_PWM
depends on HAVE_PWM
help
If you have a LCD backlight adjustable by PWM, say Y to enable
this driver.
config BACKLIGHT_DA903X
tristate "Backlight Driver for DA9030/DA9034 using WLED"
depends on BACKLIGHT_CLASS_DEVICE && PMIC_DA903X
depends on PMIC_DA903X
help
If you have a LCD backlight connected to the WLED output of DA9030
or DA9034 WLED output, say Y here to enable this driver.
config BACKLIGHT_MAX8925
tristate "Backlight driver for MAX8925"
depends on BACKLIGHT_CLASS_DEVICE && MFD_MAX8925
depends on MFD_MAX8925
help
If you have a LCD backlight connected to the WLED output of MAX8925
WLED output, say Y here to enable this driver.
config BACKLIGHT_MBP_NVIDIA
tristate "MacBook Pro Nvidia Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && X86
default n
depends on X86
help
If you have an Apple Macbook Pro with Nvidia graphics hardware say Y
to enable a driver for its backlight
config BACKLIGHT_TOSA
tristate "Sharp SL-6000 Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && I2C
depends on MACH_TOSA && LCD_TOSA
default n
depends on I2C && MACH_TOSA && LCD_TOSA
help
If you have an Sharp SL-6000 Zaurus say Y to enable a driver
for its backlight
config BACKLIGHT_SAHARA
tristate "Tabletkiosk Sahara Touch-iT Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && X86
default n
depends on X86
help
If you have a Tabletkiosk Sahara Touch-iT, say y to enable the
backlight driver.
config BACKLIGHT_WM831X
tristate "WM831x PMIC Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && MFD_WM831X
depends on MFD_WM831X
help
If you have a backlight driven by the ISINK and DCDC of a
WM831x PMIC say y to enable the backlight driver for it.
config BACKLIGHT_ADX
tristate "Avionic Design Xanthos Backlight Driver"
depends on BACKLIGHT_CLASS_DEVICE && ARCH_PXA_ADX
depends on ARCH_PXA_ADX
default y
help
Say Y to enable the backlight driver on Avionic Design Xanthos-based
@ -268,7 +274,7 @@ config BACKLIGHT_ADX
config BACKLIGHT_ADP5520
tristate "Backlight Driver for ADP5520/ADP5501 using WLED"
depends on BACKLIGHT_CLASS_DEVICE && PMIC_ADP5520
depends on PMIC_ADP5520
help
If you have a LCD backlight connected to the BST/BL_SNK output of
ADP5520 or ADP5501, say Y here to enable this driver.
@ -276,9 +282,31 @@ config BACKLIGHT_ADP5520
To compile this driver as a module, choose M here: the module will
be called adp5520_bl.
config BACKLIGHT_ADP8860
tristate "Backlight Driver for ADP8860/ADP8861/ADP8863 using WLED"
depends on BACKLIGHT_CLASS_DEVICE && I2C
select NEW_LEDS
select LEDS_CLASS
help
If you have a LCD backlight connected to the ADP8860, ADP8861 or
ADP8863 say Y here to enable this driver.
To compile this driver as a module, choose M here: the module will
be called adp8860_bl.
config BACKLIGHT_88PM860X
tristate "Backlight Driver for 88PM8606 using WLED"
depends on BACKLIGHT_CLASS_DEVICE && MFD_88PM860X
depends on MFD_88PM860X
help
Say Y to enable the backlight driver for Marvell 88PM8606.
config BACKLIGHT_PCF50633
tristate "Backlight driver for NXP PCF50633 MFD"
depends on BACKLIGHT_CLASS_DEVICE && MFD_PCF50633
help
If you have a backlight driven by a NXP PCF50633 MFD, say Y here to
enable its driver.
endif # BACKLIGHT_CLASS_DEVICE
endif # BACKLIGHT_LCD_SUPPORT

4
drivers/video/backlight/Makefile
View File

@ -11,9 +11,11 @@ obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
obj-$(CONFIG_LCD_TDO24M) += tdo24m.o
obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o
obj-$(CONFIG_LCD_S6E63M0) += s6e63m0.o
obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o
obj-$(CONFIG_BACKLIGHT_EP93XX) += ep93xx_bl.o
obj-$(CONFIG_BACKLIGHT_GENERIC) += generic_bl.o
obj-$(CONFIG_BACKLIGHT_HP700) += jornada720_bl.o
obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o
@ -30,5 +32,7 @@ obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o
obj-$(CONFIG_BACKLIGHT_ADX) += adx_bl.o
obj-$(CONFIG_BACKLIGHT_ADP5520) += adp5520_bl.o
obj-$(CONFIG_BACKLIGHT_ADP8860) += adp8860_bl.o
obj-$(CONFIG_BACKLIGHT_88PM860X) += 88pm860x_bl.o
obj-$(CONFIG_BACKLIGHT_PCF50633) += pcf50633-backlight.o

838
drivers/video/backlight/adp8860_bl.c Normal file
View File

@ -0,0 +1,838 @@
/*
* Backlight driver for Analog Devices ADP8860 Backlight Devices
*
* Copyright 2009-2010 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <linux/module.h>
#include <linux/version.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/fb.h>
#include <linux/backlight.h>
#include <linux/leds.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/i2c/adp8860.h>
#define ADP8860_EXT_FEATURES
#define ADP8860_USE_LEDS
#define ADP8860_MFDVID 0x00 /* Manufacturer and device ID */
#define ADP8860_MDCR 0x01 /* Device mode and status */
#define ADP8860_MDCR2 0x02 /* Device mode and Status Register 2 */
#define ADP8860_INTR_EN 0x03 /* Interrupts enable */
#define ADP8860_CFGR 0x04 /* Configuration register */
#define ADP8860_BLSEN 0x05 /* Sink enable backlight or independent */
#define ADP8860_BLOFF 0x06 /* Backlight off timeout */
#define ADP8860_BLDIM 0x07 /* Backlight dim timeout */
#define ADP8860_BLFR 0x08 /* Backlight fade in and out rates */
#define ADP8860_BLMX1 0x09 /* Backlight (Brightness Level 1-daylight) maximum current */
#define ADP8860_BLDM1 0x0A /* Backlight (Brightness Level 1-daylight) dim current */
#define ADP8860_BLMX2 0x0B /* Backlight (Brightness Level 2-office) maximum current */
#define ADP8860_BLDM2 0x0C /* Backlight (Brightness Level 2-office) dim current */
#define ADP8860_BLMX3 0x0D /* Backlight (Brightness Level 3-dark) maximum current */
#define ADP8860_BLDM3 0x0E /* Backlight (Brightness Level 3-dark) dim current */
#define ADP8860_ISCFR 0x0F /* Independent sink current fade control register */
#define ADP8860_ISCC 0x10 /* Independent sink current control register */
#define ADP8860_ISCT1 0x11 /* Independent Sink Current Timer Register LED[7:5] */
#define ADP8860_ISCT2 0x12 /* Independent Sink Current Timer Register LED[4:1] */
#define ADP8860_ISCF 0x13 /* Independent sink current fade register */
#define ADP8860_ISC7 0x14 /* Independent Sink Current LED7 */
#define ADP8860_ISC6 0x15 /* Independent Sink Current LED6 */
#define ADP8860_ISC5 0x16 /* Independent Sink Current LED5 */
#define ADP8860_ISC4 0x17 /* Independent Sink Current LED4 */
#define ADP8860_ISC3 0x18 /* Independent Sink Current LED3 */
#define ADP8860_ISC2 0x19 /* Independent Sink Current LED2 */
#define ADP8860_ISC1 0x1A /* Independent Sink Current LED1 */
#define ADP8860_CCFG 0x1B /* Comparator configuration */
#define ADP8860_CCFG2 0x1C /* Second comparator configuration */
#define ADP8860_L2_TRP 0x1D /* L2 comparator reference */
#define ADP8860_L2_HYS 0x1E /* L2 hysteresis */
#define ADP8860_L3_TRP 0x1F /* L3 comparator reference */
#define ADP8860_L3_HYS 0x20 /* L3 hysteresis */
#define ADP8860_PH1LEVL 0x21 /* First phototransistor ambient light level-low byte register */
#define ADP8860_PH1LEVH 0x22 /* First phototransistor ambient light level-high byte register */
#define ADP8860_PH2LEVL 0x23 /* Second phototransistor ambient light level-low byte register */
#define ADP8860_PH2LEVH 0x24 /* Second phototransistor ambient light level-high byte register */
#define ADP8860_MANUFID 0x0 /* Analog Devices ADP8860 Manufacturer ID */
#define ADP8861_MANUFID 0x4 /* Analog Devices ADP8861 Manufacturer ID */
#define ADP8863_MANUFID 0x2 /* Analog Devices ADP8863 Manufacturer ID */
#define ADP8860_DEVID(x) ((x) & 0xF)
#define ADP8860_MANID(x) ((x) >> 4)
/* MDCR Device mode and status */
#define INT_CFG (1 << 6)
#define NSTBY (1 << 5)
#define DIM_EN (1 << 4)
#define GDWN_DIS (1 << 3)
#define SIS_EN (1 << 2)
#define CMP_AUTOEN (1 << 1)
#define BLEN (1 << 0)
/* ADP8860_CCFG Main ALS comparator level enable */
#define L3_EN (1 << 1)
#define L2_EN (1 << 0)
#define CFGR_BLV_SHIFT 3
#define CFGR_BLV_MASK 0x3
#define ADP8860_FLAG_LED_MASK 0xFF
#define FADE_VAL(in, out) ((0xF & (in)) | ((0xF & (out)) << 4))
#define BL_CFGR_VAL(law, blv) ((((blv) & CFGR_BLV_MASK) << CFGR_BLV_SHIFT) | ((0x3 & (law)) << 1))
#define ALS_CCFG_VAL(filt) ((0x7 & filt) << 5)
enum {
adp8860,
adp8861,
adp8863
};
struct adp8860_led {
struct led_classdev cdev;
struct work_struct work;
struct i2c_client *client;
enum led_brightness new_brightness;
int id;
int flags;
};
struct adp8860_bl {
struct i2c_client *client;
struct backlight_device *bl;
struct adp8860_led *led;
struct adp8860_backlight_platform_data *pdata;
struct mutex lock;
unsigned long cached_daylight_max;
int id;
int revid;
int current_brightness;
unsigned en_ambl_sens:1;
unsigned gdwn_dis:1;
};
static int adp8860_read(struct i2c_client *client, int reg, uint8_t *val)
{
int ret;
ret = i2c_smbus_read_byte_data(client, reg);
if (ret < 0) {
dev_err(&client->dev, "failed reading at 0x%02x\n", reg);
return ret;
}
*val = (uint8_t)ret;
return 0;
}
static int adp8860_write(struct i2c_client *client, u8 reg, u8 val)
{
return i2c_smbus_write_byte_data(client, reg, val);
}
static int adp8860_set_bits(struct i2c_client *client, int reg, uint8_t bit_mask)
{
struct adp8860_bl *data = i2c_get_clientdata(client);
uint8_t reg_val;
int ret;
mutex_lock(&data->lock);
ret = adp8860_read(client, reg, &reg_val);
if (!ret && ((reg_val & bit_mask) == 0)) {
reg_val |= bit_mask;
ret = adp8860_write(client, reg, reg_val);
}
mutex_unlock(&data->lock);
return ret;
}
static int adp8860_clr_bits(struct i2c_client *client, int reg, uint8_t bit_mask)
{
struct adp8860_bl *data = i2c_get_clientdata(client);
uint8_t reg_val;
int ret;
mutex_lock(&data->lock);
ret = adp8860_read(client, reg, &reg_val);
if (!ret && (reg_val & bit_mask)) {
reg_val &= ~bit_mask;
ret = adp8860_write(client, reg, reg_val);
}
mutex_unlock(&data->lock);
return ret;
}
/*
* Independent sink / LED
*/
#if defined(ADP8860_USE_LEDS)
static void adp8860_led_work(struct work_struct *work)
{
struct adp8860_led *led = container_of(work, struct adp8860_led, work);
adp8860_write(led->client, ADP8860_ISC1 - led->id + 1,
led->new_brightness >> 1);
}
static void adp8860_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct adp8860_led *led;
led = container_of(led_cdev, struct adp8860_led, cdev);
led->new_brightness = value;
schedule_work(&led->work);
}
static int adp8860_led_setup(struct adp8860_led *led)
{
struct i2c_client *client = led->client;
int ret = 0;
ret = adp8860_write(client, ADP8860_ISC1 - led->id + 1, 0);
ret |= adp8860_set_bits(client, ADP8860_ISCC, 1 << (led->id - 1));
if (led->id > 4)
ret |= adp8860_set_bits(client, ADP8860_ISCT1,
(led->flags & 0x3) << ((led->id - 5) * 2));
else
ret |= adp8860_set_bits(client, ADP8860_ISCT2,
(led->flags & 0x3) << ((led->id - 1) * 2));
return ret;
}
static int __devinit adp8860_led_probe(struct i2c_client *client)
{
struct adp8860_backlight_platform_data *pdata =
client->dev.platform_data;
struct adp8860_bl *data = i2c_get_clientdata(client);
struct adp8860_led *led, *led_dat;
struct led_info *cur_led;
int ret, i;
led = kzalloc(sizeof(*led) * pdata->num_leds, GFP_KERNEL);
if (led == NULL) {
dev_err(&client->dev, "failed to alloc memory\n");
return -ENOMEM;
}
ret = adp8860_write(client, ADP8860_ISCFR, pdata->led_fade_law);
ret = adp8860_write(client, ADP8860_ISCT1,
(pdata->led_on_time & 0x3) << 6);
ret |= adp8860_write(client, ADP8860_ISCF,
FADE_VAL(pdata->led_fade_in, pdata->led_fade_out));
if (ret) {
dev_err(&client->dev, "failed to write\n");
goto err_free;
}
for (i = 0; i < pdata->num_leds; ++i) {
cur_led = &pdata->leds[i];
led_dat = &led[i];
led_dat->id = cur_led->flags & ADP8860_FLAG_LED_MASK;
if (led_dat->id > 7 || led_dat->id < 1) {
dev_err(&client->dev, "Invalid LED ID %d\n",
led_dat->id);
goto err;
}
if (pdata->bl_led_assign & (1 << (led_dat->id - 1))) {
dev_err(&client->dev, "LED %d used by Backlight\n",
led_dat->id);
goto err;
}
led_dat->cdev.name = cur_led->name;
led_dat->cdev.default_trigger = cur_led->default_trigger;
led_dat->cdev.brightness_set = adp8860_led_set;
led_dat->cdev.brightness = LED_OFF;
led_dat->flags = cur_led->flags >> FLAG_OFFT_SHIFT;
led_dat->client = client;
led_dat->new_brightness = LED_OFF;
INIT_WORK(&led_dat->work, adp8860_led_work);
ret = led_classdev_register(&client->dev, &led_dat->cdev);
if (ret) {
dev_err(&client->dev, "failed to register LED %d\n",
led_dat->id);
goto err;
}
ret = adp8860_led_setup(led_dat);
if (ret) {
dev_err(&client->dev, "failed to write\n");
i++;
goto err;
}
}
data->led = led;
return 0;
err:
for (i = i - 1; i >= 0; --i) {
led_classdev_unregister(&led[i].cdev);
cancel_work_sync(&led[i].work);
}
err_free:
kfree(led);
return ret;
}
static int __devexit adp8860_led_remove(struct i2c_client *client)
{
struct adp8860_backlight_platform_data *pdata =
client->dev.platform_data;
struct adp8860_bl *data = i2c_get_clientdata(client);
int i;
for (i = 0; i < pdata->num_leds; i++) {
led_classdev_unregister(&data->led[i].cdev);
cancel_work_sync(&data->led[i].work);
}
kfree(data->led);
return 0;
}
#else
static int __devinit adp8860_led_probe(struct i2c_client *client)
{
return 0;
}
static int __devexit adp8860_led_remove(struct i2c_client *client)
{
return 0;
}
#endif
static int adp8860_bl_set(struct backlight_device *bl, int brightness)
{
struct adp8860_bl *data = bl_get_data(bl);
struct i2c_client *client = data->client;
int ret = 0;
if (data->en_ambl_sens) {
if ((brightness > 0) && (brightness < ADP8860_MAX_BRIGHTNESS)) {
/* Disable Ambient Light auto adjust */
ret |= adp8860_clr_bits(client, ADP8860_MDCR,
CMP_AUTOEN);
ret |= adp8860_write(client, ADP8860_BLMX1, brightness);
} else {
/*
* MAX_BRIGHTNESS -> Enable Ambient Light auto adjust
* restore daylight l1 sysfs brightness
*/
ret |= adp8860_write(client, ADP8860_BLMX1,
data->cached_daylight_max);
ret |= adp8860_set_bits(client, ADP8860_MDCR,
CMP_AUTOEN);
}
} else
ret |= adp8860_write(client, ADP8860_BLMX1, brightness);
if (data->current_brightness && brightness == 0)
ret |= adp8860_set_bits(client,
ADP8860_MDCR, DIM_EN);
else if (data->current_brightness == 0 && brightness)
ret |= adp8860_clr_bits(client,
ADP8860_MDCR, DIM_EN);
if (!ret)
data->current_brightness = brightness;
return ret;
}
static int adp8860_bl_update_status(struct backlight_device *bl)
{
int brightness = bl->props.brightness;
if (bl->props.power != FB_BLANK_UNBLANK)
brightness = 0;
if (bl->props.fb_blank != FB_BLANK_UNBLANK)
brightness = 0;
return adp8860_bl_set(bl, brightness);
}
static int adp8860_bl_get_brightness(struct backlight_device *bl)
{
struct adp8860_bl *data = bl_get_data(bl);
return data->current_brightness;
}
static const struct backlight_ops adp8860_bl_ops = {
.update_status = adp8860_bl_update_status,
.get_brightness = adp8860_bl_get_brightness,
};
static int adp8860_bl_setup(struct backlight_device *bl)
{
struct adp8860_bl *data = bl_get_data(bl);
struct i2c_client *client = data->client;
struct adp8860_backlight_platform_data *pdata = data->pdata;
int ret = 0;
ret |= adp8860_write(client, ADP8860_BLSEN, ~pdata->bl_led_assign);
ret |= adp8860_write(client, ADP8860_BLMX1, pdata->l1_daylight_max);
ret |= adp8860_write(client, ADP8860_BLDM1, pdata->l1_daylight_dim);
if (data->en_ambl_sens) {
data->cached_daylight_max = pdata->l1_daylight_max;
ret |= adp8860_write(client, ADP8860_BLMX2,
pdata->l2_office_max);
ret |= adp8860_write(client, ADP8860_BLDM2,
pdata->l2_office_dim);
ret |= adp8860_write(client, ADP8860_BLMX3,
pdata->l3_dark_max);
ret |= adp8860_write(client, ADP8860_BLDM3,
pdata->l3_dark_dim);
ret |= adp8860_write(client, ADP8860_L2_TRP, pdata->l2_trip);
ret |= adp8860_write(client, ADP8860_L2_HYS, pdata->l2_hyst);
ret |= adp8860_write(client, ADP8860_L3_TRP, pdata->l3_trip);
ret |= adp8860_write(client, ADP8860_L3_HYS, pdata->l3_hyst);
ret |= adp8860_write(client, ADP8860_CCFG, L2_EN | L3_EN |
ALS_CCFG_VAL(pdata->abml_filt));
}
ret |= adp8860_write(client, ADP8860_CFGR,
BL_CFGR_VAL(pdata->bl_fade_law, 0));
ret |= adp8860_write(client, ADP8860_BLFR, FADE_VAL(pdata->bl_fade_in,
pdata->bl_fade_out));
ret |= adp8860_set_bits(client, ADP8860_MDCR, BLEN | DIM_EN | NSTBY |
(data->gdwn_dis ? GDWN_DIS : 0));
return ret;
}
static ssize_t adp8860_show(struct device *dev, char *buf, int reg)
{
struct adp8860_bl *data = dev_get_drvdata(dev);
int error;
uint8_t reg_val;
mutex_lock(&data->lock);
error = adp8860_read(data->client, reg, &reg_val);
mutex_unlock(&data->lock);
if (error < 0)
return error;
return sprintf(buf, "%u\n", reg_val);
}
static ssize_t adp8860_store(struct device *dev, const char *buf,
size_t count, int reg)
{
struct adp8860_bl *data = dev_get_drvdata(dev);
unsigned long val;
int ret;
ret = strict_strtoul(buf, 10, &val);
if (ret)
return ret;
mutex_lock(&data->lock);
adp8860_write(data->client, reg, val);
mutex_unlock(&data->lock);
return count;
}
static ssize_t adp8860_bl_l3_dark_max_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return adp8860_show(dev, buf, ADP8860_BLMX3);
}
static ssize_t adp8860_bl_l3_dark_max_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
return adp8860_store(dev, buf, count, ADP8860_BLMX3);
}
static DEVICE_ATTR(l3_dark_max, 0664, adp8860_bl_l3_dark_max_show,
adp8860_bl_l3_dark_max_store);
static ssize_t adp8860_bl_l2_office_max_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return adp8860_show(dev, buf, ADP8860_BLMX2);
}
static ssize_t adp8860_bl_l2_office_max_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
return adp8860_store(dev, buf, count, ADP8860_BLMX2);
}
static DEVICE_ATTR(l2_office_max, 0664, adp8860_bl_l2_office_max_show,
adp8860_bl_l2_office_max_store);
static ssize_t adp8860_bl_l1_daylight_max_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return adp8860_show(dev, buf, ADP8860_BLMX1);
}
static ssize_t adp8860_bl_l1_daylight_max_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct adp8860_bl *data = dev_get_drvdata(dev);
strict_strtoul(buf, 10, &data->cached_daylight_max);
return adp8860_store(dev, buf, count, ADP8860_BLMX1);
}
static DEVICE_ATTR(l1_daylight_max, 0664, adp8860_bl_l1_daylight_max_show,
adp8860_bl_l1_daylight_max_store);
static ssize_t adp8860_bl_l3_dark_dim_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return adp8860_show(dev, buf, ADP8860_BLDM3);
}
static ssize_t adp8860_bl_l3_dark_dim_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
return adp8860_store(dev, buf, count, ADP8860_BLDM3);
}
static DEVICE_ATTR(l3_dark_dim, 0664, adp8860_bl_l3_dark_dim_show,
adp8860_bl_l3_dark_dim_store);
static ssize_t adp8860_bl_l2_office_dim_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return adp8860_show(dev, buf, ADP8860_BLDM2);
}
static ssize_t adp8860_bl_l2_office_dim_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
return adp8860_store(dev, buf, count, ADP8860_BLDM2);
}
static DEVICE_ATTR(l2_office_dim, 0664, adp8860_bl_l2_office_dim_show,
adp8860_bl_l2_office_dim_store);
static ssize_t adp8860_bl_l1_daylight_dim_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return adp8860_show(dev, buf, ADP8860_BLDM1);
}
static ssize_t adp8860_bl_l1_daylight_dim_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
return adp8860_store(dev, buf, count, ADP8860_BLDM1);
}
static DEVICE_ATTR(l1_daylight_dim, 0664, adp8860_bl_l1_daylight_dim_show,
adp8860_bl_l1_daylight_dim_store);
#ifdef ADP8860_EXT_FEATURES
static ssize_t adp8860_bl_ambient_light_level_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct adp8860_bl *data = dev_get_drvdata(dev);
int error;
uint8_t reg_val;
uint16_t ret_val;
mutex_lock(&data->lock);
error = adp8860_read(data->client, ADP8860_PH1LEVL, &reg_val);
ret_val = reg_val;
error |= adp8860_read(data->client, ADP8860_PH1LEVH, &reg_val);
mutex_unlock(&data->lock);
if (error < 0)
return error;
/* Return 13-bit conversion value for the first light sensor */
ret_val += (reg_val & 0x1F) << 8;
return sprintf(buf, "%u\n", ret_val);
}
static DEVICE_ATTR(ambient_light_level, 0444,
adp8860_bl_ambient_light_level_show, NULL);
static ssize_t adp8860_bl_ambient_light_zone_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct adp8860_bl *data = dev_get_drvdata(dev);
int error;
uint8_t reg_val;
mutex_lock(&data->lock);
error = adp8860_read(data->client, ADP8860_CFGR, &reg_val);
mutex_unlock(&data->lock);
if (error < 0)
return error;
return sprintf(buf, "%u\n",
((reg_val >> CFGR_BLV_SHIFT) & CFGR_BLV_MASK) + 1);
}
static ssize_t adp8860_bl_ambient_light_zone_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct adp8860_bl *data = dev_get_drvdata(dev);
unsigned long val;
uint8_t reg_val;
int ret;
ret = strict_strtoul(buf, 10, &val);
if (ret)
return ret;
if (val == 0) {
/* Enable automatic ambient light sensing */
adp8860_set_bits(data->client, ADP8860_MDCR, CMP_AUTOEN);
} else if ((val > 0) && (val < 6)) {
/* Disable automatic ambient light sensing */
adp8860_clr_bits(data->client, ADP8860_MDCR, CMP_AUTOEN);
/* Set user supplied ambient light zone */
mutex_lock(&data->lock);
adp8860_read(data->client, ADP8860_CFGR, &reg_val);
reg_val &= ~(CFGR_BLV_MASK << CFGR_BLV_SHIFT);
reg_val |= val << CFGR_BLV_SHIFT;
adp8860_write(data->client, ADP8860_CFGR, reg_val);
mutex_unlock(&data->lock);
}
return count;
}
static DEVICE_ATTR(ambient_light_zone, 0664,
adp8860_bl_ambient_light_zone_show,
adp8860_bl_ambient_light_zone_store);
#endif
static struct attribute *adp8860_bl_attributes[] = {
&dev_attr_l3_dark_max.attr,
&dev_attr_l3_dark_dim.attr,
&dev_attr_l2_office_max.attr,
&dev_attr_l2_office_dim.attr,
&dev_attr_l1_daylight_max.attr,
&dev_attr_l1_daylight_dim.attr,
#ifdef ADP8860_EXT_FEATURES
&dev_attr_ambient_light_level.attr,
&dev_attr_ambient_light_zone.attr,
#endif
NULL
};
static const struct attribute_group adp8860_bl_attr_group = {
.attrs = adp8860_bl_attributes,
};
static int __devinit adp8860_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct backlight_device *bl;
struct adp8860_bl *data;
struct adp8860_backlight_platform_data *pdata =
client->dev.platform_data;
struct backlight_properties props;
uint8_t reg_val;
int ret;
if (!i2c_check_functionality(client->adapter,
I2C_FUNC_SMBUS_BYTE_DATA)) {
dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
return -EIO;
}
if (!pdata) {
dev_err(&client->dev, "no platform data?\n");
return -EINVAL;
}
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
ret = adp8860_read(client, ADP8860_MFDVID, &reg_val);
if (ret < 0)
goto out2;
switch (ADP8860_MANID(reg_val)) {
case ADP8863_MANUFID:
data->gdwn_dis = !!pdata->gdwn_dis;
case ADP8860_MANUFID:
data->en_ambl_sens = !!pdata->en_ambl_sens;
break;
case ADP8861_MANUFID:
data->gdwn_dis = !!pdata->gdwn_dis;
break;
default:
dev_err(&client->dev, "failed to probe\n");
ret = -ENODEV;
goto out2;
}
/* It's confirmed that the DEVID field is actually a REVID */
data->revid = ADP8860_DEVID(reg_val);
data->client = client;
data->pdata = pdata;
data->id = id->driver_data;
data->current_brightness = 0;
i2c_set_clientdata(client, data);
memset(&props, 0, sizeof(props));
props.max_brightness = ADP8860_MAX_BRIGHTNESS;
mutex_init(&data->lock);
bl = backlight_device_register(dev_driver_string(&client->dev),
&client->dev, data, &adp8860_bl_ops, &props);
if (IS_ERR(bl)) {
dev_err(&client->dev, "failed to register backlight\n");
ret = PTR_ERR(bl);
goto out2;
}
bl->props.max_brightness =
bl->props.brightness = ADP8860_MAX_BRIGHTNESS;
data->bl = bl;
if (data->en_ambl_sens)
ret = sysfs_create_group(&bl->dev.kobj,
&adp8860_bl_attr_group);
if (ret) {
dev_err(&client->dev, "failed to register sysfs\n");
goto out1;
}
ret = adp8860_bl_setup(bl);
if (ret) {
ret = -EIO;
goto out;
}
backlight_update_status(bl);
dev_info(&client->dev, "%s Rev.%d Backlight\n",
client->name, data->revid);
if (pdata->num_leds)
adp8860_led_probe(client);
return 0;
out:
if (data->en_ambl_sens)
sysfs_remove_group(&data->bl->dev.kobj,
&adp8860_bl_attr_group);
out1:
backlight_device_unregister(bl);
out2:
i2c_set_clientdata(client, NULL);
kfree(data);
return ret;
}
static int __devexit adp8860_remove(struct i2c_client *client)
{
struct adp8860_bl *data = i2c_get_clientdata(client);
adp8860_clr_bits(client, ADP8860_MDCR, NSTBY);
if (data->led)
adp8860_led_remove(client);
if (data->en_ambl_sens)
sysfs_remove_group(&data->bl->dev.kobj,
&adp8860_bl_attr_group);
backlight_device_unregister(data->bl);
i2c_set_clientdata(client, NULL);
kfree(data);
return 0;
}
#ifdef CONFIG_PM
static int adp8860_i2c_suspend(struct i2c_client *client, pm_message_t message)
{
adp8860_clr_bits(client, ADP8860_MDCR, NSTBY);
return 0;
}
static int adp8860_i2c_resume(struct i2c_client *client)
{
adp8860_set_bits(client, ADP8860_MDCR, NSTBY);
return 0;
}
#else
#define adp8860_i2c_suspend NULL
#define adp8860_i2c_resume NULL
#endif
static const struct i2c_device_id adp8860_id[] = {
{ "adp8860", adp8860 },
{ "adp8861", adp8861 },
{ "adp8863", adp8863 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adp8860_id);
static struct i2c_driver adp8860_driver = {
.driver = {
.name = KBUILD_MODNAME,
},
.probe = adp8860_probe,
.remove = __devexit_p(adp8860_remove),
.suspend = adp8860_i2c_suspend,
.resume = adp8860_i2c_resume,
.id_table = adp8860_id,
};
static int __init adp8860_init(void)
{
return i2c_add_driver(&adp8860_driver);
}
module_init(adp8860_init);
static void __exit adp8860_exit(void)
{
i2c_del_driver(&adp8860_driver);
}
module_exit(adp8860_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_DESCRIPTION("ADP8860 Backlight driver");
MODULE_ALIAS("i2c:adp8860-backlight");

4
drivers/video/backlight/adx_bl.c
View File

@ -107,8 +107,8 @@ static int __devinit adx_backlight_probe(struct platform_device *pdev)
props.max_brightness = 0xff;
bldev = backlight_device_register(dev_name(&pdev->dev), &pdev->dev,
bl, &adx_backlight_ops, &props);
if (!bldev) {
ret = -ENOMEM;
if (IS_ERR(bldev)) {
ret = PTR_ERR(bldev);
goto out;
}

160
drivers/video/backlight/ep93xx_bl.c Normal file
View File

@ -0,0 +1,160 @@
/*
* Driver for the Cirrus EP93xx lcd backlight
*
* Copyright (c) 2010 H Hartley Sweeten <hsweeten@visionengravers.com>
*
* 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.
*
* This driver controls the pulse width modulated brightness control output,
* BRIGHT, on the Cirrus EP9307, EP9312, and EP9315 processors.
*/
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/fb.h>
#include <linux/backlight.h>
#include <mach/hardware.h>
#define EP93XX_RASTER_REG(x) (EP93XX_RASTER_BASE + (x))
#define EP93XX_RASTER_BRIGHTNESS EP93XX_RASTER_REG(0x20)
#define EP93XX_MAX_COUNT 255
#define EP93XX_MAX_BRIGHT 255
#define EP93XX_DEF_BRIGHT 128
struct ep93xxbl {
void __iomem *mmio;
int brightness;
};
static int ep93xxbl_set(struct backlight_device *bl, int brightness)
{
struct ep93xxbl *ep93xxbl = bl_get_data(bl);
__raw_writel((brightness << 8) | EP93XX_MAX_COUNT, ep93xxbl->mmio);
ep93xxbl->brightness = brightness;
return 0;
}
static int ep93xxbl_update_status(struct backlight_device *bl)
{
int brightness = bl->props.brightness;
if (bl->props.power != FB_BLANK_UNBLANK ||
bl->props.fb_blank != FB_BLANK_UNBLANK)
brightness = 0;
return ep93xxbl_set(bl, brightness);
}
static int ep93xxbl_get_brightness(struct backlight_device *bl)
{
struct ep93xxbl *ep93xxbl = bl_get_data(bl);
return ep93xxbl->brightness;
}
static const struct backlight_ops ep93xxbl_ops = {
.update_status = ep93xxbl_update_status,
.get_brightness = ep93xxbl_get_brightness,
};
static int __init ep93xxbl_probe(struct platform_device *dev)
{
struct ep93xxbl *ep93xxbl;
struct backlight_device *bl;
struct backlight_properties props;
ep93xxbl = devm_kzalloc(&dev->dev, sizeof(*ep93xxbl), GFP_KERNEL);
if (!ep93xxbl)
return -ENOMEM;
/*
* This register is located in the range already ioremap'ed by
* the framebuffer driver. A MFD driver seems a bit of overkill
* to handle this so use the static I/O mapping; this address
* is already virtual.
*
* NOTE: No locking is required; the framebuffer does not touch
* this register.
*/
ep93xxbl->mmio = EP93XX_RASTER_BRIGHTNESS;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = EP93XX_MAX_BRIGHT;
bl = backlight_device_register(dev->name, &dev->dev, ep93xxbl,
&ep93xxbl_ops, &props);
if (IS_ERR(bl))
return PTR_ERR(bl);
bl->props.brightness = EP93XX_DEF_BRIGHT;
platform_set_drvdata(dev, bl);
ep93xxbl_update_status(bl);
return 0;
}
static int ep93xxbl_remove(struct platform_device *dev)
{
struct backlight_device *bl = platform_get_drvdata(dev);
backlight_device_unregister(bl);
platform_set_drvdata(dev, NULL);
return 0;
}
#ifdef CONFIG_PM
static int ep93xxbl_suspend(struct platform_device *dev, pm_message_t state)
{
struct backlight_device *bl = platform_get_drvdata(dev);
return ep93xxbl_set(bl, 0);
}
static int ep93xxbl_resume(struct platform_device *dev)
{
struct backlight_device *bl = platform_get_drvdata(dev);
backlight_update_status(bl);
return 0;
}
#else
#define ep93xxbl_suspend NULL
#define ep93xxbl_resume NULL
#endif
static struct platform_driver ep93xxbl_driver = {
.driver = {
.name = "ep93xx-bl",
.owner = THIS_MODULE,
},
.probe = ep93xxbl_probe,
.remove = __devexit_p(ep93xxbl_remove),
.suspend = ep93xxbl_suspend,
.resume = ep93xxbl_resume,
};
static int __init ep93xxbl_init(void)
{
return platform_driver_register(&ep93xxbl_driver);
}
module_init(ep93xxbl_init);
static void __exit ep93xxbl_exit(void)
{
platform_driver_unregister(&ep93xxbl_driver);
}
module_exit(ep93xxbl_exit);
MODULE_DESCRIPTION("EP93xx Backlight Driver");
MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:ep93xx-bl");

11
drivers/video/backlight/l4f00242t03.c
View File

@ -125,8 +125,7 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
if (priv == NULL) {
dev_err(&spi->dev, "No memory for this device.\n");
ret = -ENOMEM;
goto err;
return -ENOMEM;
}
dev_set_drvdata(&spi->dev, priv);
@ -139,7 +138,7 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 reset gpio.\n");
return ret;
goto err;
}
ret = gpio_direction_output(pdata->reset_gpio, 1);
@ -151,7 +150,7 @@ static int __devinit l4f00242t03_probe(struct spi_device *spi)
if (ret) {
dev_err(&spi->dev,
"Unable to get the lcd l4f00242t03 data en gpio.\n");
return ret;
goto err2;
}
ret = gpio_direction_output(pdata->data_enable_gpio, 0);
@ -222,9 +221,9 @@ static int __devexit l4f00242t03_remove(struct spi_device *spi)
gpio_free(pdata->reset_gpio);
if (priv->io_reg)
regulator_put(priv->core_reg);
if (priv->core_reg)
regulator_put(priv->io_reg);
if (priv->core_reg)
regulator_put(priv->core_reg);
kfree(priv);

1
drivers/video/backlight/max8925_bl.c
View File

@ -162,6 +162,7 @@ static int __devinit max8925_backlight_probe(struct platform_device *pdev)
backlight_update_status(bl);
return 0;
out:
backlight_device_unregister(bl);
kfree(data);
return ret;
}

47
drivers/video/backlight/mbp_nvidia_bl.c
View File

@ -141,7 +141,7 @@ static const struct dmi_system_id __initdata mbp_device_table[] = {
.callback = mbp_dmi_match,
.ident = "MacBook 1,1",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
},
.driver_data = (void *)&intel_chipset_data,
@ -182,6 +182,42 @@ static const struct dmi_system_id __initdata mbp_device_table[] = {
},
.driver_data = (void *)&intel_chipset_data,
},
{
.callback = mbp_dmi_match,
.ident = "MacBookPro 1,1",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),
},
.driver_data = (void *)&intel_chipset_data,
},
{
.callback = mbp_dmi_match,
.ident = "MacBookPro 1,2",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,2"),
},
.driver_data = (void *)&intel_chipset_data,
},
{
.callback = mbp_dmi_match,
.ident = "MacBookPro 2,1",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,1"),
},
.driver_data = (void *)&intel_chipset_data,
},
{
.callback = mbp_dmi_match,
.ident = "MacBookPro 2,2",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),
},
.driver_data = (void *)&intel_chipset_data,
},
{
.callback = mbp_dmi_match,
.ident = "MacBookPro 3,1",
@ -236,6 +272,15 @@ static const struct dmi_system_id __initdata mbp_device_table[] = {
},
.driver_data = (void *)&nvidia_chipset_data,
},
{
.callback = mbp_dmi_match,
.ident = "MacBook 6,1",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "MacBook6,1"),
},
.driver_data = (void *)&nvidia_chipset_data,
},
{
.callback = mbp_dmi_match,
.ident = "MacBookAir 2,1",

190
drivers/video/backlight/pcf50633-backlight.c Normal file
View File

@ -0,0 +1,190 @@
/*
* Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
* PCF50633 backlight device driver
*
* 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.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/backlight.h>
#include <linux/fb.h>
#include <linux/mfd/pcf50633/core.h>
#include <linux/mfd/pcf50633/backlight.h>
struct pcf50633_bl {
struct pcf50633 *pcf;
struct backlight_device *bl;
unsigned int brightness;
unsigned int brightness_limit;
};
/*
* pcf50633_bl_set_brightness_limit
*
* Update the brightness limit for the pc50633 backlight. The actual brightness
* will not go above the limit. This is useful to limit power drain for example
* on low battery.
*
* @dev: Pointer to a pcf50633 device
* @limit: The brightness limit. Valid values are 0-63
*/
int pcf50633_bl_set_brightness_limit(struct pcf50633 *pcf, unsigned int limit)
{
struct pcf50633_bl *pcf_bl = platform_get_drvdata(pcf->bl_pdev);
if (!pcf_bl)
return -ENODEV;
pcf_bl->brightness_limit = limit & 0x3f;
backlight_update_status(pcf_bl->bl);
return 0;
}
static int pcf50633_bl_update_status(struct backlight_device *bl)
{
struct pcf50633_bl *pcf_bl = bl_get_data(bl);
unsigned int new_brightness;
if (bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK) ||
bl->props.power != FB_BLANK_UNBLANK)
new_brightness = 0;
else if (bl->props.brightness < pcf_bl->brightness_limit)
new_brightness = bl->props.brightness;
else
new_brightness = pcf_bl->brightness_limit;
if (pcf_bl->brightness == new_brightness)
return 0;
if (new_brightness) {
pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDOUT,
new_brightness);
if (!pcf_bl->brightness)
pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDENA, 1);
} else {
pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDENA, 0);
}
pcf_bl->brightness = new_brightness;
return 0;
}
static int pcf50633_bl_get_brightness(struct backlight_device *bl)
{
struct pcf50633_bl *pcf_bl = bl_get_data(bl);
return pcf_bl->brightness;
}
static const struct backlight_ops pcf50633_bl_ops = {
.get_brightness = pcf50633_bl_get_brightness,
.update_status = pcf50633_bl_update_status,
.options = BL_CORE_SUSPENDRESUME,
};
static int __devinit pcf50633_bl_probe(struct platform_device *pdev)
{
int ret;
struct pcf50633_bl *pcf_bl;
struct device *parent = pdev->dev.parent;
struct pcf50633_platform_data *pcf50633_data = parent->platform_data;
struct pcf50633_bl_platform_data *pdata = pcf50633_data->backlight_data;
struct backlight_properties bl_props;
pcf_bl = kzalloc(sizeof(*pcf_bl), GFP_KERNEL);
if (!pcf_bl)
return -ENOMEM;
bl_props.max_brightness = 0x3f;
bl_props.power = FB_BLANK_UNBLANK;
if (pdata) {
bl_props.brightness = pdata->default_brightness;
pcf_bl->brightness_limit = pdata->default_brightness_limit;
} else {
bl_props.brightness = 0x3f;
pcf_bl->brightness_limit = 0x3f;
}
pcf_bl->pcf = dev_to_pcf50633(pdev->dev.parent);
pcf_bl->bl = backlight_device_register(pdev->name, &pdev->dev, pcf_bl,
&pcf50633_bl_ops, &bl_props);
if (IS_ERR(pcf_bl->bl)) {
ret = PTR_ERR(pcf_bl->bl);
goto err_free;
}
platform_set_drvdata(pdev, pcf_bl);
pcf50633_reg_write(pcf_bl->pcf, PCF50633_REG_LEDDIM, pdata->ramp_time);
/* Should be different from bl_props.brightness, so we do not exit
* update_status early the first time it's called */
pcf_bl->brightness = pcf_bl->bl->props.brightness + 1;
backlight_update_status(pcf_bl->bl);
return 0;
err_free:
kfree(pcf_bl);
return ret;
}
static int __devexit pcf50633_bl_remove(struct platform_device *pdev)
{
struct pcf50633_bl *pcf_bl = platform_get_drvdata(pdev);
backlight_device_unregister(pcf_bl->bl);
platform_set_drvdata(pdev, NULL);
kfree(pcf_bl);
return 0;
}
static struct platform_driver pcf50633_bl_driver = {
.probe = pcf50633_bl_probe,
.remove = __devexit_p(pcf50633_bl_remove),
.driver = {
.name = "pcf50633-backlight",
},
};
static int __init pcf50633_bl_init(void)
{
return platform_driver_register(&pcf50633_bl_driver);
}
module_init(pcf50633_bl_init);
static void __exit pcf50633_bl_exit(void)
{
platform_driver_unregister(&pcf50633_bl_driver);
}
module_exit(pcf50633_bl_exit);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("PCF50633 backlight driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:pcf50633-backlight");

920
drivers/video/backlight/s6e63m0.c Normal file
View File

@ -0,0 +1,920 @@
/*
* S6E63M0 AMOLED LCD panel driver.
*
* Author: InKi Dae <inki.dae@samsung.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/wait.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/lcd.h>
#include <linux/backlight.h>
#include "s6e63m0_gamma.h"
#define SLEEPMSEC 0x1000
#define ENDDEF 0x2000
#define DEFMASK 0xFF00
#define COMMAND_ONLY 0xFE
#define DATA_ONLY 0xFF
#define MIN_BRIGHTNESS 0
#define MAX_BRIGHTNESS 10
#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL)
struct s6e63m0 {
struct device *dev;
struct spi_device *spi;
unsigned int power;
unsigned int current_brightness;
unsigned int gamma_mode;
unsigned int gamma_table_count;
struct lcd_device *ld;
struct backlight_device *bd;
struct lcd_platform_data *lcd_pd;
};
static const unsigned short SEQ_PANEL_CONDITION_SET[] = {
0xF8, 0x01,
DATA_ONLY, 0x27,
DATA_ONLY, 0x27,
DATA_ONLY, 0x07,
DATA_ONLY, 0x07,
DATA_ONLY, 0x54,
DATA_ONLY, 0x9f,
DATA_ONLY, 0x63,
DATA_ONLY, 0x86,
DATA_ONLY, 0x1a,
DATA_ONLY, 0x33,
DATA_ONLY, 0x0d,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
ENDDEF, 0x0000
};
static const unsigned short SEQ_DISPLAY_CONDITION_SET[] = {
0xf2, 0x02,
DATA_ONLY, 0x03,
DATA_ONLY, 0x1c,
DATA_ONLY, 0x10,
DATA_ONLY, 0x10,
0xf7, 0x03,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
ENDDEF, 0x0000
};
static const unsigned short SEQ_GAMMA_SETTING[] = {
0xfa, 0x00,
DATA_ONLY, 0x18,
DATA_ONLY, 0x08,
DATA_ONLY, 0x24,
DATA_ONLY, 0x64,
DATA_ONLY, 0x56,
DATA_ONLY, 0x33,
DATA_ONLY, 0xb6,
DATA_ONLY, 0xba,
DATA_ONLY, 0xa8,
DATA_ONLY, 0xac,
DATA_ONLY, 0xb1,
DATA_ONLY, 0x9d,
DATA_ONLY, 0xc1,
DATA_ONLY, 0xc1,
DATA_ONLY, 0xb7,
DATA_ONLY, 0x00,
DATA_ONLY, 0x9c,
DATA_ONLY, 0x00,
DATA_ONLY, 0x9f,
DATA_ONLY, 0x00,
DATA_ONLY, 0xd6,
0xfa, 0x01,
ENDDEF, 0x0000
};
static const unsigned short SEQ_ETC_CONDITION_SET[] = {
0xf6, 0x00,
DATA_ONLY, 0x8c,
DATA_ONLY, 0x07,
0xb3, 0xc,
0xb5, 0x2c,
DATA_ONLY, 0x12,
DATA_ONLY, 0x0c,
DATA_ONLY, 0x0a,
DATA_ONLY, 0x10,
DATA_ONLY, 0x0e,
DATA_ONLY, 0x17,
DATA_ONLY, 0x13,
DATA_ONLY, 0x1f,
DATA_ONLY, 0x1a,
DATA_ONLY, 0x2a,
DATA_ONLY, 0x24,
DATA_ONLY, 0x1f,
DATA_ONLY, 0x1b,
DATA_ONLY, 0x1a,
DATA_ONLY, 0x17,
DATA_ONLY, 0x2b,
DATA_ONLY, 0x26,
DATA_ONLY, 0x22,
DATA_ONLY, 0x20,
DATA_ONLY, 0x3a,
DATA_ONLY, 0x34,
DATA_ONLY, 0x30,
DATA_ONLY, 0x2c,
DATA_ONLY, 0x29,
DATA_ONLY, 0x26,
DATA_ONLY, 0x25,
DATA_ONLY, 0x23,
DATA_ONLY, 0x21,
DATA_ONLY, 0x20,
DATA_ONLY, 0x1e,
DATA_ONLY, 0x1e,
0xb6, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x11,
DATA_ONLY, 0x22,
DATA_ONLY, 0x33,
DATA_ONLY, 0x44,
DATA_ONLY, 0x44,
DATA_ONLY, 0x44,
DATA_ONLY, 0x55,
DATA_ONLY, 0x55,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
0xb7, 0x2c,
DATA_ONLY, 0x12,
DATA_ONLY, 0x0c,
DATA_ONLY, 0x0a,
DATA_ONLY, 0x10,
DATA_ONLY, 0x0e,
DATA_ONLY, 0x17,
DATA_ONLY, 0x13,
DATA_ONLY, 0x1f,
DATA_ONLY, 0x1a,
DATA_ONLY, 0x2a,
DATA_ONLY, 0x24,
DATA_ONLY, 0x1f,
DATA_ONLY, 0x1b,
DATA_ONLY, 0x1a,
DATA_ONLY, 0x17,
DATA_ONLY, 0x2b,
DATA_ONLY, 0x26,
DATA_ONLY, 0x22,
DATA_ONLY, 0x20,
DATA_ONLY, 0x3a,
DATA_ONLY, 0x34,
DATA_ONLY, 0x30,
DATA_ONLY, 0x2c,
DATA_ONLY, 0x29,
DATA_ONLY, 0x26,
DATA_ONLY, 0x25,
DATA_ONLY, 0x23,
DATA_ONLY, 0x21,
DATA_ONLY, 0x20,
DATA_ONLY, 0x1e,
DATA_ONLY, 0x1e,
0xb8, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x11,
DATA_ONLY, 0x22,
DATA_ONLY, 0x33,
DATA_ONLY, 0x44,
DATA_ONLY, 0x44,
DATA_ONLY, 0x44,
DATA_ONLY, 0x55,
DATA_ONLY, 0x55,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
0xb9, 0x2c,
DATA_ONLY, 0x12,
DATA_ONLY, 0x0c,
DATA_ONLY, 0x0a,
DATA_ONLY, 0x10,
DATA_ONLY, 0x0e,
DATA_ONLY, 0x17,
DATA_ONLY, 0x13,
DATA_ONLY, 0x1f,
DATA_ONLY, 0x1a,
DATA_ONLY, 0x2a,
DATA_ONLY, 0x24,
DATA_ONLY, 0x1f,
DATA_ONLY, 0x1b,
DATA_ONLY, 0x1a,
DATA_ONLY, 0x17,
DATA_ONLY, 0x2b,
DATA_ONLY, 0x26,
DATA_ONLY, 0x22,
DATA_ONLY, 0x20,
DATA_ONLY, 0x3a,
DATA_ONLY, 0x34,
DATA_ONLY, 0x30,
DATA_ONLY, 0x2c,
DATA_ONLY, 0x29,
DATA_ONLY, 0x26,
DATA_ONLY, 0x25,
DATA_ONLY, 0x23,
DATA_ONLY, 0x21,
DATA_ONLY, 0x20,
DATA_ONLY, 0x1e,
DATA_ONLY, 0x1e,
0xba, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x11,
DATA_ONLY, 0x22,
DATA_ONLY, 0x33,
DATA_ONLY, 0x44,
DATA_ONLY, 0x44,
DATA_ONLY, 0x44,
DATA_ONLY, 0x55,
DATA_ONLY, 0x55,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
DATA_ONLY, 0x66,
0xc1, 0x4d,
DATA_ONLY, 0x96,
DATA_ONLY, 0x1d,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x01,
DATA_ONLY, 0xdf,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
DATA_ONLY, 0x1f,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
DATA_ONLY, 0x06,
DATA_ONLY, 0x09,
DATA_ONLY, 0x0d,
DATA_ONLY, 0x0f,
DATA_ONLY, 0x12,
DATA_ONLY, 0x15,
DATA_ONLY, 0x18,
0xb2, 0x10,
DATA_ONLY, 0x10,
DATA_ONLY, 0x0b,
DATA_ONLY, 0x05,
ENDDEF, 0x0000
};
static const unsigned short SEQ_ACL_ON[] = {
/* ACL on */
0xc0, 0x01,
ENDDEF, 0x0000
};
static const unsigned short SEQ_ACL_OFF[] = {
/* ACL off */
0xc0, 0x00,
ENDDEF, 0x0000
};
static const unsigned short SEQ_ELVSS_ON[] = {
/* ELVSS on */
0xb1, 0x0b,
ENDDEF, 0x0000
};
static const unsigned short SEQ_ELVSS_OFF[] = {
/* ELVSS off */
0xb1, 0x0a,
ENDDEF, 0x0000
};
static const unsigned short SEQ_STAND_BY_OFF[] = {
0x11, COMMAND_ONLY,
ENDDEF, 0x0000
};
static const unsigned short SEQ_STAND_BY_ON[] = {
0x10, COMMAND_ONLY,
ENDDEF, 0x0000
};
static const unsigned short SEQ_DISPLAY_ON[] = {
0x29, COMMAND_ONLY,
ENDDEF, 0x0000
};
static int s6e63m0_spi_write_byte(struct s6e63m0 *lcd, int addr, int data)
{
u16 buf[1];
struct spi_message msg;
struct spi_transfer xfer = {
.len = 2,
.tx_buf = buf,
};
buf[0] = (addr << 8) | data;
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
return spi_sync(lcd->spi, &msg);
}
static int s6e63m0_spi_write(struct s6e63m0 *lcd, unsigned char address,
unsigned char command)
{
int ret = 0;
if (address != DATA_ONLY)
ret = s6e63m0_spi_write_byte(lcd, 0x0, address);
if (command != COMMAND_ONLY)
ret = s6e63m0_spi_write_byte(lcd, 0x1, command);
return ret;
}
static int s6e63m0_panel_send_sequence(struct s6e63m0 *lcd,
const unsigned short *wbuf)
{
int ret = 0, i = 0;
while ((wbuf[i] & DEFMASK) != ENDDEF) {
if ((wbuf[i] & DEFMASK) != SLEEPMSEC) {
ret = s6e63m0_spi_write(lcd, wbuf[i], wbuf[i+1]);
if (ret)
break;
} else
udelay(wbuf[i+1]*1000);
i += 2;
}
return ret;
}
static int _s6e63m0_gamma_ctl(struct s6e63m0 *lcd, const unsigned int *gamma)
{
unsigned int i = 0;
int ret = 0;
/* disable gamma table updating. */
ret = s6e63m0_spi_write(lcd, 0xfa, 0x00);
if (ret) {
dev_err(lcd->dev, "failed to disable gamma table updating.\n");
goto gamma_err;
}
for (i = 0 ; i < GAMMA_TABLE_COUNT; i++) {
ret = s6e63m0_spi_write(lcd, DATA_ONLY, gamma[i]);
if (ret) {
dev_err(lcd->dev, "failed to set gamma table.\n");
goto gamma_err;
}
}
/* update gamma table. */
ret = s6e63m0_spi_write(lcd, 0xfa, 0x01);
if (ret)
dev_err(lcd->dev, "failed to update gamma table.\n");
gamma_err:
return ret;
}
static int s6e63m0_gamma_ctl(struct s6e63m0 *lcd, int gamma)
{
int ret = 0;
ret = _s6e63m0_gamma_ctl(lcd, gamma_table.gamma_22_table[gamma]);
return ret;
}
static int s6e63m0_ldi_init(struct s6e63m0 *lcd)
{
int ret, i;
const unsigned short *init_seq[] = {
SEQ_PANEL_CONDITION_SET,
SEQ_DISPLAY_CONDITION_SET,
SEQ_GAMMA_SETTING,
SEQ_ETC_CONDITION_SET,
SEQ_ACL_ON,
SEQ_ELVSS_ON,
};
for (i = 0; i < ARRAY_SIZE(init_seq); i++) {
ret = s6e63m0_panel_send_sequence(lcd, init_seq[i]);
if (ret)
break;
}
return ret;
}
static int s6e63m0_ldi_enable(struct s6e63m0 *lcd)
{
int ret = 0, i;
const unsigned short *enable_seq[] = {
SEQ_STAND_BY_OFF,
SEQ_DISPLAY_ON,
};
for (i = 0; i < ARRAY_SIZE(enable_seq); i++) {
ret = s6e63m0_panel_send_sequence(lcd, enable_seq[i]);
if (ret)
break;
}
return ret;
}
static int s6e63m0_ldi_disable(struct s6e63m0 *lcd)
{
int ret;
ret = s6e63m0_panel_send_sequence(lcd, SEQ_STAND_BY_ON);
return ret;
}
static int s6e63m0_power_on(struct s6e63m0 *lcd)
{
int ret = 0;
struct lcd_platform_data *pd = NULL;
struct backlight_device *bd = NULL;
pd = lcd->lcd_pd;
if (!pd) {
dev_err(lcd->dev, "platform data is NULL.\n");
return -EFAULT;
}
bd = lcd->bd;
if (!bd) {
dev_err(lcd->dev, "backlight device is NULL.\n");
return -EFAULT;
}
if (!pd->power_on) {
dev_err(lcd->dev, "power_on is NULL.\n");
return -EFAULT;
} else {
pd->power_on(lcd->ld, 1);
mdelay(pd->power_on_delay);
}
if (!pd->reset) {
dev_err(lcd->dev, "reset is NULL.\n");
return -EFAULT;
} else {
pd->reset(lcd->ld);
mdelay(pd->reset_delay);
}
ret = s6e63m0_ldi_init(lcd);
if (ret) {
dev_err(lcd->dev, "failed to initialize ldi.\n");
return ret;
}
ret = s6e63m0_ldi_enable(lcd);
if (ret) {
dev_err(lcd->dev, "failed to enable ldi.\n");
return ret;
}
/* set brightness to current value after power on or resume. */
ret = s6e63m0_gamma_ctl(lcd, bd->props.brightness);
if (ret) {
dev_err(lcd->dev, "lcd gamma setting failed.\n");
return ret;
}
return 0;
}
static int s6e63m0_power_off(struct s6e63m0 *lcd)
{
int ret = 0;
struct lcd_platform_data *pd = NULL;
pd = lcd->lcd_pd;
if (!pd) {
dev_err(lcd->dev, "platform data is NULL.\n");
return -EFAULT;
}
ret = s6e63m0_ldi_disable(lcd);
if (ret) {
dev_err(lcd->dev, "lcd setting failed.\n");
return -EIO;
}
mdelay(pd->power_off_delay);
if (!pd->power_on) {
dev_err(lcd->dev, "power_on is NULL.\n");
return -EFAULT;
} else
pd->power_on(lcd->ld, 0);
return 0;
}
static int s6e63m0_power(struct s6e63m0 *lcd, int power)
{
int ret = 0;
if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power))
ret = s6e63m0_power_on(lcd);
else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power))
ret = s6e63m0_power_off(lcd);
if (!ret)
lcd->power = power;
return ret;
}
static int s6e63m0_set_power(struct lcd_device *ld, int power)
{
struct s6e63m0 *lcd = lcd_get_data(ld);
if (power != FB_BLANK_UNBLANK && power != FB_BLANK_POWERDOWN &&
power != FB_BLANK_NORMAL) {
dev_err(lcd->dev, "power value should be 0, 1 or 4.\n");
return -EINVAL;
}
return s6e63m0_power(lcd, power);
}
static int s6e63m0_get_power(struct lcd_device *ld)
{
struct s6e63m0 *lcd = lcd_get_data(ld);
return lcd->power;
}
static int s6e63m0_get_brightness(struct backlight_device *bd)
{
return bd->props.brightness;
}
static int s6e63m0_set_brightness(struct backlight_device *bd)
{
int ret = 0, brightness = bd->props.brightness;
struct s6e63m0 *lcd = bl_get_data(bd);
if (brightness < MIN_BRIGHTNESS ||
brightness > bd->props.max_brightness) {
dev_err(&bd->dev, "lcd brightness should be %d to %d.\n",
MIN_BRIGHTNESS, MAX_BRIGHTNESS);
return -EINVAL;
}
ret = s6e63m0_gamma_ctl(lcd, bd->props.brightness);
if (ret) {
dev_err(&bd->dev, "lcd brightness setting failed.\n");
return -EIO;
}
return ret;
}
static struct lcd_ops s6e63m0_lcd_ops = {
.set_power = s6e63m0_set_power,
.get_power = s6e63m0_get_power,
};
static const struct backlight_ops s6e63m0_backlight_ops = {
.get_brightness = s6e63m0_get_brightness,
.update_status = s6e63m0_set_brightness,
};
static ssize_t s6e63m0_sysfs_show_gamma_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct s6e63m0 *lcd = dev_get_drvdata(dev);
char temp[10];
switch (lcd->gamma_mode) {
case 0:
sprintf(temp, "2.2 mode\n");
strcat(buf, temp);
break;
case 1:
sprintf(temp, "1.9 mode\n");
strcat(buf, temp);
break;
case 2:
sprintf(temp, "1.7 mode\n");
strcat(buf, temp);
break;
default:
dev_info(dev, "gamma mode could be 0:2.2, 1:1.9 or 2:1.7)n");
break;
}
return strlen(buf);
}
static ssize_t s6e63m0_sysfs_store_gamma_mode(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct s6e63m0 *lcd = dev_get_drvdata(dev);
struct backlight_device *bd = NULL;
int brightness, rc;
rc = strict_strtoul(buf, 0, (unsigned long *)&lcd->gamma_mode);
if (rc < 0)
return rc;
bd = lcd->bd;
brightness = bd->props.brightness;
switch (lcd->gamma_mode) {
case 0:
_s6e63m0_gamma_ctl(lcd, gamma_table.gamma_22_table[brightness]);
break;
case 1:
_s6e63m0_gamma_ctl(lcd, gamma_table.gamma_19_table[brightness]);
break;
case 2:
_s6e63m0_gamma_ctl(lcd, gamma_table.gamma_17_table[brightness]);
break;
default:
dev_info(dev, "gamma mode could be 0:2.2, 1:1.9 or 2:1.7\n");
_s6e63m0_gamma_ctl(lcd, gamma_table.gamma_22_table[brightness]);
break;
}
return len;
}
static DEVICE_ATTR(gamma_mode, 0644,
s6e63m0_sysfs_show_gamma_mode, s6e63m0_sysfs_store_gamma_mode);
static ssize_t s6e63m0_sysfs_show_gamma_table(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct s6e63m0 *lcd = dev_get_drvdata(dev);
char temp[3];
sprintf(temp, "%d\n", lcd->gamma_table_count);
strcpy(buf, temp);
return strlen(buf);
}
static DEVICE_ATTR(gamma_table, 0644,
s6e63m0_sysfs_show_gamma_table, NULL);
static int __init s6e63m0_probe(struct spi_device *spi)
{
int ret = 0;
struct s6e63m0 *lcd = NULL;
struct lcd_device *ld = NULL;
struct backlight_device *bd = NULL;
lcd = kzalloc(sizeof(struct s6e63m0), GFP_KERNEL);
if (!lcd)
return -ENOMEM;
/* s6e63m0 lcd panel uses 3-wire 9bits SPI Mode. */
spi->bits_per_word = 9;
ret = spi_setup(spi);
if (ret < 0) {
dev_err(&spi->dev, "spi setup failed.\n");
goto out_free_lcd;
}
lcd->spi = spi;
lcd->dev = &spi->dev;
lcd->lcd_pd = (struct lcd_platform_data *)spi->dev.platform_data;
if (!lcd->lcd_pd) {
dev_err(&spi->dev, "platform data is NULL.\n");
goto out_free_lcd;
}
ld = lcd_device_register("s6e63m0", &spi->dev, lcd, &s6e63m0_lcd_ops);
if (IS_ERR(ld)) {
ret = PTR_ERR(ld);
goto out_free_lcd;
}
lcd->ld = ld;
bd = backlight_device_register("s6e63m0bl-bl", &spi->dev, lcd,
&s6e63m0_backlight_ops, NULL);
if (IS_ERR(bd)) {
ret = PTR_ERR(bd);
goto out_lcd_unregister;
}
bd->props.max_brightness = MAX_BRIGHTNESS;
bd->props.brightness = MAX_BRIGHTNESS;
lcd->bd = bd;
/*
* it gets gamma table count available so it gets user
* know that.
*/
lcd->gamma_table_count =
sizeof(gamma_table) / (MAX_GAMMA_LEVEL * sizeof(int));
ret = device_create_file(&(spi->dev), &dev_attr_gamma_mode);
if (ret < 0)
dev_err(&(spi->dev), "failed to add sysfs entries\n");
ret = device_create_file(&(spi->dev), &dev_attr_gamma_table);
if (ret < 0)
dev_err(&(spi->dev), "failed to add sysfs entries\n");
/*
* if lcd panel was on from bootloader like u-boot then
* do not lcd on.
*/
if (!lcd->lcd_pd->lcd_enabled) {
/*
* if lcd panel was off from bootloader then
* current lcd status is powerdown and then
* it enables lcd panel.
*/
lcd->power = FB_BLANK_POWERDOWN;
s6e63m0_power(lcd, FB_BLANK_UNBLANK);
} else
lcd->power = FB_BLANK_UNBLANK;
dev_set_drvdata(&spi->dev, lcd);
dev_info(&spi->dev, "s6e63m0 panel driver has been probed.\n");
return 0;
out_lcd_unregister:
lcd_device_unregister(ld);
out_free_lcd:
kfree(lcd);
return ret;
}
static int __devexit s6e63m0_remove(struct spi_device *spi)
{
struct s6e63m0 *lcd = dev_get_drvdata(&spi->dev);
s6e63m0_power(lcd, FB_BLANK_POWERDOWN);
lcd_device_unregister(lcd->ld);
kfree(lcd);
return 0;
}
#if defined(CONFIG_PM)
unsigned int before_power;
static int s6e63m0_suspend(struct spi_device *spi, pm_message_t mesg)
{
int ret = 0;
struct s6e63m0 *lcd = dev_get_drvdata(&spi->dev);
dev_dbg(&spi->dev, "lcd->power = %d\n", lcd->power);
before_power = lcd->power;
/*
* when lcd panel is suspend, lcd panel becomes off
* regardless of status.
*/
ret = s6e63m0_power(lcd, FB_BLANK_POWERDOWN);
return ret;
}
static int s6e63m0_resume(struct spi_device *spi)
{
int ret = 0;
struct s6e63m0 *lcd = dev_get_drvdata(&spi->dev);
/*
* after suspended, if lcd panel status is FB_BLANK_UNBLANK
* (at that time, before_power is FB_BLANK_UNBLANK) then
* it changes that status to FB_BLANK_POWERDOWN to get lcd on.
*/
if (before_power == FB_BLANK_UNBLANK)
lcd->power = FB_BLANK_POWERDOWN;
dev_dbg(&spi->dev, "before_power = %d\n", before_power);
ret = s6e63m0_power(lcd, before_power);
return ret;
}
#else
#define s6e63m0_suspend NULL
#define s6e63m0_resume NULL
#endif
/* Power down all displays on reboot, poweroff or halt. */
static void s6e63m0_shutdown(struct spi_device *spi)
{
struct s6e63m0 *lcd = dev_get_drvdata(&spi->dev);
s6e63m0_power(lcd, FB_BLANK_POWERDOWN);
}
static struct spi_driver s6e63m0_driver = {
.driver = {
.name = "s6e63m0",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.probe = s6e63m0_probe,
.remove = __devexit_p(s6e63m0_remove),
.shutdown = s6e63m0_shutdown,
.suspend = s6e63m0_suspend,
.resume = s6e63m0_resume,
};
static int __init s6e63m0_init(void)
{
return spi_register_driver(&s6e63m0_driver);
}
static void __exit s6e63m0_exit(void)
{
spi_unregister_driver(&s6e63m0_driver);
}
module_init(s6e63m0_init);
module_exit(s6e63m0_exit);
MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
MODULE_DESCRIPTION("S6E63M0 LCD Driver");
MODULE_LICENSE("GPL");

266
drivers/video/backlight/s6e63m0_gamma.h Normal file
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@ -0,0 +1,266 @@
/* linux/drivers/video/samsung/s6e63m0_brightness.h
*
* Gamma level definitions.
*
* Copyright (c) 2009 Samsung Electronics
* InKi Dae <inki.dae@samsung.com>
*
* 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 _S6E63M0_BRIGHTNESS_H
#define _S6E63M0_BRIGHTNESS_H
#define MAX_GAMMA_LEVEL 11
#define GAMMA_TABLE_COUNT 21
/* gamma value: 2.2 */
static const unsigned int s6e63m0_22_300[] = {
0x18, 0x08, 0x24, 0x5f, 0x50, 0x2d, 0xB6,
0xB9, 0xA7, 0xAd, 0xB1, 0x9f, 0xbe, 0xC0,
0xB5, 0x00, 0xa0, 0x00, 0xa4, 0x00, 0xdb
};
static const unsigned int s6e63m0_22_280[] = {
0x18, 0x08, 0x24, 0x64, 0x56, 0x33, 0xB6,
0xBA, 0xA8, 0xAC, 0xB1, 0x9D, 0xC1, 0xC1,
0xB7, 0x00, 0x9C, 0x00, 0x9F, 0x00, 0xD6
};
static const unsigned int s6e63m0_22_260[] = {
0x18, 0x08, 0x24, 0x66, 0x58, 0x34, 0xB6,
0xBA, 0xA7, 0xAF, 0xB3, 0xA0, 0xC1, 0xC2,
0xB7, 0x00, 0x97, 0x00, 0x9A, 0x00, 0xD1
};
static const unsigned int s6e63m0_22_240[] = {
0x18, 0x08, 0x24, 0x62, 0x54, 0x30, 0xB9,
0xBB, 0xA9, 0xB0, 0xB3, 0xA1, 0xC1, 0xC3,
0xB7, 0x00, 0x91, 0x00, 0x95, 0x00, 0xDA
};
static const unsigned int s6e63m0_22_220[] = {
0x18, 0x08, 0x24, 0x63, 0x53, 0x31, 0xB8,
0xBC, 0xA9, 0xB0, 0xB5, 0xA2, 0xC4, 0xC4,
0xB8, 0x00, 0x8B, 0x00, 0x8E, 0x00, 0xC2
};
static const unsigned int s6e63m0_22_200[] = {
0x18, 0x08, 0x24, 0x66, 0x55, 0x34, 0xBA,
0xBD, 0xAB, 0xB1, 0xB5, 0xA3, 0xC5, 0xC6,
0xB9, 0x00, 0x85, 0x00, 0x88, 0x00, 0xBA
};
static const unsigned int s6e63m0_22_170[] = {
0x18, 0x08, 0x24, 0x69, 0x54, 0x37, 0xBB,
0xBE, 0xAC, 0xB4, 0xB7, 0xA6, 0xC7, 0xC8,
0xBC, 0x00, 0x7B, 0x00, 0x7E, 0x00, 0xAB
};
static const unsigned int s6e63m0_22_140[] = {
0x18, 0x08, 0x24, 0x6C, 0x54, 0x3A, 0xBC,
0xBF, 0xAC, 0xB7, 0xBB, 0xA9, 0xC9, 0xC9,
0xBE, 0x00, 0x71, 0x00, 0x73, 0x00, 0x9E
};
static const unsigned int s6e63m0_22_110[] = {
0x18, 0x08, 0x24, 0x70, 0x51, 0x3E, 0xBF,
0xC1, 0xAF, 0xB9, 0xBC, 0xAB, 0xCC, 0xCC,
0xC2, 0x00, 0x65, 0x00, 0x67, 0x00, 0x8D
};
static const unsigned int s6e63m0_22_90[] = {
0x18, 0x08, 0x24, 0x73, 0x4A, 0x3D, 0xC0,
0xC2, 0xB1, 0xBB, 0xBE, 0xAC, 0xCE, 0xCF,
0xC5, 0x00, 0x5D, 0x00, 0x5E, 0x00, 0x82
};
static const unsigned int s6e63m0_22_30[] = {
0x18, 0x08, 0x24, 0x78, 0xEC, 0x3D, 0xC8,
0xC2, 0xB6, 0xC4, 0xC7, 0xB6, 0xD5, 0xD7,
0xCC, 0x00, 0x39, 0x00, 0x36, 0x00, 0x51
};
/* gamma value: 1.9 */
static const unsigned int s6e63m0_19_300[] = {
0x18, 0x08, 0x24, 0x61, 0x5F, 0x39, 0xBA,
0xBD, 0xAD, 0xB1, 0xB6, 0xA5, 0xC4, 0xC5,
0xBC, 0x00, 0xA0, 0x00, 0xA4, 0x00, 0xDB
};
static const unsigned int s6e63m0_19_280[] = {
0x18, 0x08, 0x24, 0x61, 0x60, 0x39, 0xBB,
0xBE, 0xAD, 0xB2, 0xB6, 0xA6, 0xC5, 0xC7,
0xBD, 0x00, 0x9B, 0x00, 0x9E, 0x00, 0xD5
};
static const unsigned int s6e63m0_19_260[] = {
0x18, 0x08, 0x24, 0x63, 0x61, 0x3B, 0xBA,
0xBE, 0xAC, 0xB3, 0xB8, 0xA7, 0xC6, 0xC8,
0xBD, 0x00, 0x96, 0x00, 0x98, 0x00, 0xCF
};
static const unsigned int s6e63m0_19_240[] = {
0x18, 0x08, 0x24, 0x67, 0x64, 0x3F, 0xBB,
0xBE, 0xAD, 0xB3, 0xB9, 0xA7, 0xC8, 0xC9,
0xBE, 0x00, 0x90, 0x00, 0x92, 0x00, 0xC8
};
static const unsigned int s6e63m0_19_220[] = {
0x18, 0x08, 0x24, 0x68, 0x64, 0x40, 0xBC,
0xBF, 0xAF, 0xB4, 0xBA, 0xA9, 0xC8, 0xCA,
0xBE, 0x00, 0x8B, 0x00, 0x8C, 0x00, 0xC0
};
static const unsigned int s6e63m0_19_200[] = {
0x18, 0x08, 0x24, 0x68, 0x64, 0x3F, 0xBE,
0xC0, 0xB0, 0xB6, 0xBB, 0xAB, 0xC8, 0xCB,
0xBF, 0x00, 0x85, 0x00, 0x86, 0x00, 0xB8
};
static const unsigned int s6e63m0_19_170[] = {
0x18, 0x08, 0x24, 0x69, 0x64, 0x40, 0xBF,
0xC1, 0xB0, 0xB9, 0xBE, 0xAD, 0xCB, 0xCD,
0xC2, 0x00, 0x7A, 0x00, 0x7B, 0x00, 0xAA
};
static const unsigned int s6e63m0_19_140[] = {
0x18, 0x08, 0x24, 0x6E, 0x65, 0x45, 0xC0,
0xC3, 0xB2, 0xBA, 0xBE, 0xAE, 0xCD, 0xD0,
0xC4, 0x00, 0x70, 0x00, 0x70, 0x00, 0x9C
};
static const unsigned int s6e63m0_19_110[] = {
0x18, 0x08, 0x24, 0x6F, 0x65, 0x46, 0xC2,
0xC4, 0xB3, 0xBF, 0xC2, 0xB2, 0xCF, 0xD1,
0xC6, 0x00, 0x64, 0x00, 0x64, 0x00, 0x8D
};
static const unsigned int s6e63m0_19_90[] = {
0x18, 0x08, 0x24, 0x74, 0x60, 0x4A, 0xC3,
0xC6, 0xB5, 0xBF, 0xC3, 0xB2, 0xD2, 0xD3,
0xC8, 0x00, 0x5B, 0x00, 0x5B, 0x00, 0x81
};
static const unsigned int s6e63m0_19_30[] = {
0x18, 0x08, 0x24, 0x84, 0x45, 0x4F, 0xCA,
0xCB, 0xBC, 0xC9, 0xCB, 0xBC, 0xDA, 0xDA,
0xD0, 0x00, 0x35, 0x00, 0x34, 0x00, 0x4E
};
/* gamma value: 1.7 */
static const unsigned int s6e63m0_17_300[] = {
0x18, 0x08, 0x24, 0x70, 0x70, 0x4F, 0xBF,
0xC2, 0xB2, 0xB8, 0xBC, 0xAC, 0xCB, 0xCD,
0xC3, 0x00, 0xA0, 0x00, 0xA4, 0x00, 0xDB
};
static const unsigned int s6e63m0_17_280[] = {
0x18, 0x08, 0x24, 0x71, 0x71, 0x50, 0xBF,
0xC2, 0xB2, 0xBA, 0xBE, 0xAE, 0xCB, 0xCD,
0xC3, 0x00, 0x9C, 0x00, 0x9F, 0x00, 0xD6
};
static const unsigned int s6e63m0_17_260[] = {
0x18, 0x08, 0x24, 0x72, 0x72, 0x50, 0xC0,
0xC3, 0xB4, 0xB9, 0xBE, 0xAE, 0xCC, 0xCF,
0xC4, 0x00, 0x97, 0x00, 0x9A, 0x00, 0xD1
};
static const unsigned int s6e63m0_17_240[] = {
0x18, 0x08, 0x24, 0x71, 0x72, 0x4F, 0xC2,
0xC4, 0xB5, 0xBB, 0xBF, 0xB0, 0xCC, 0xCF,
0xC3, 0x00, 0x91, 0x00, 0x95, 0x00, 0xCA
};
static const unsigned int s6e63m0_17_220[] = {
0x18, 0x08, 0x24, 0x71, 0x73, 0x4F, 0xC2,
0xC5, 0xB5, 0xBD, 0xC0, 0xB2, 0xCD, 0xD1,
0xC5, 0x00, 0x8B, 0x00, 0x8E, 0x00, 0xC2
};
static const unsigned int s6e63m0_17_200[] = {
0x18, 0x08, 0x24, 0x72, 0x75, 0x51, 0xC2,
0xC6, 0xB5, 0xBF, 0xC1, 0xB3, 0xCE, 0xD1,
0xC6, 0x00, 0x85, 0x00, 0x88, 0x00, 0xBA
};
static const unsigned int s6e63m0_17_170[] = {
0x18, 0x08, 0x24, 0x75, 0x77, 0x54, 0xC3,
0xC7, 0xB7, 0xC0, 0xC3, 0xB4, 0xD1, 0xD3,
0xC9, 0x00, 0x7B, 0x00, 0x7E, 0x00, 0xAB
};
static const unsigned int s6e63m0_17_140[] = {
0x18, 0x08, 0x24, 0x7B, 0x77, 0x58, 0xC3,
0xC8, 0xB8, 0xC2, 0xC6, 0xB6, 0xD3, 0xD4,
0xCA, 0x00, 0x71, 0x00, 0x73, 0x00, 0x9E
};
static const unsigned int s6e63m0_17_110[] = {
0x18, 0x08, 0x24, 0x81, 0x7B, 0x5D, 0xC6,
0xCA, 0xBB, 0xC3, 0xC7, 0xB8, 0xD6, 0xD8,
0xCD, 0x00, 0x65, 0x00, 0x67, 0x00, 0x8D
};
static const unsigned int s6e63m0_17_90[] = {
0x18, 0x08, 0x24, 0x82, 0x7A, 0x5B, 0xC8,
0xCB, 0xBD, 0xC5, 0xCA, 0xBA, 0xD6, 0xD8,
0xCE, 0x00, 0x5D, 0x00, 0x5E, 0x00, 0x82
};
static const unsigned int s6e63m0_17_30[] = {
0x18, 0x08, 0x24, 0x8F, 0x73, 0x63, 0xD1,
0xD0, 0xC5, 0xCC, 0xD1, 0xC2, 0xDE, 0xE0,
0xD6, 0x00, 0x39, 0x00, 0x36, 0x00, 0x51
};
struct s6e63m0_gamma {
unsigned int *gamma_22_table[MAX_GAMMA_LEVEL];
unsigned int *gamma_19_table[MAX_GAMMA_LEVEL];
unsigned int *gamma_17_table[MAX_GAMMA_LEVEL];
};
static struct s6e63m0_gamma gamma_table = {
.gamma_22_table[0] = (unsigned int *)&s6e63m0_22_30,
.gamma_22_table[1] = (unsigned int *)&s6e63m0_22_90,
.gamma_22_table[2] = (unsigned int *)&s6e63m0_22_110,
.gamma_22_table[3] = (unsigned int *)&s6e63m0_22_140,
.gamma_22_table[4] = (unsigned int *)&s6e63m0_22_170,
.gamma_22_table[5] = (unsigned int *)&s6e63m0_22_200,
.gamma_22_table[6] = (unsigned int *)&s6e63m0_22_220,
.gamma_22_table[7] = (unsigned int *)&s6e63m0_22_240,
.gamma_22_table[8] = (unsigned int *)&s6e63m0_22_260,
.gamma_22_table[9] = (unsigned int *)&s6e63m0_22_280,
.gamma_22_table[10] = (unsigned int *)&s6e63m0_22_300,
.gamma_19_table[0] = (unsigned int *)&s6e63m0_19_30,
.gamma_19_table[1] = (unsigned int *)&s6e63m0_19_90,
.gamma_19_table[2] = (unsigned int *)&s6e63m0_19_110,
.gamma_19_table[3] = (unsigned int *)&s6e63m0_19_140,
.gamma_19_table[4] = (unsigned int *)&s6e63m0_19_170,
.gamma_19_table[5] = (unsigned int *)&s6e63m0_19_200,
.gamma_19_table[6] = (unsigned int *)&s6e63m0_19_220,
.gamma_19_table[7] = (unsigned int *)&s6e63m0_19_240,
.gamma_19_table[8] = (unsigned int *)&s6e63m0_19_260,
.gamma_19_table[9] = (unsigned int *)&s6e63m0_19_280,
.gamma_19_table[10] = (unsigned int *)&s6e63m0_19_300,
.gamma_17_table[0] = (unsigned int *)&s6e63m0_17_30,
.gamma_17_table[1] = (unsigned int *)&s6e63m0_17_90,
.gamma_17_table[2] = (unsigned int *)&s6e63m0_17_110,
.gamma_17_table[3] = (unsigned int *)&s6e63m0_17_140,
.gamma_17_table[4] = (unsigned int *)&s6e63m0_17_170,
.gamma_17_table[5] = (unsigned int *)&s6e63m0_17_200,
.gamma_17_table[6] = (unsigned int *)&s6e63m0_17_220,
.gamma_17_table[7] = (unsigned int *)&s6e63m0_17_240,
.gamma_17_table[8] = (unsigned int *)&s6e63m0_17_260,
.gamma_17_table[9] = (unsigned int *)&s6e63m0_17_280,
.gamma_17_table[10] = (unsigned int *)&s6e63m0_17_300,
};
#endif

154
include/linux/i2c/adp8860.h Normal file
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@ -0,0 +1,154 @@
/*
* Definitions and platform data for Analog Devices
* Backlight drivers ADP8860
*
* Copyright 2009-2010 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef __LINUX_I2C_ADP8860_H
#define __LINUX_I2C_ADP8860_H
#include <linux/leds.h>
#include <linux/types.h>
#define ID_ADP8860 8860
#define ADP8860_MAX_BRIGHTNESS 0x7F
#define FLAG_OFFT_SHIFT 8
/*
* LEDs subdevice platform data
*/
#define ADP8860_LED_DIS_BLINK (0 << FLAG_OFFT_SHIFT)
#define ADP8860_LED_OFFT_600ms (1 << FLAG_OFFT_SHIFT)
#define ADP8860_LED_OFFT_1200ms (2 << FLAG_OFFT_SHIFT)
#define ADP8860_LED_OFFT_1800ms (3 << FLAG_OFFT_SHIFT)
#define ADP8860_LED_ONT_200ms 0
#define ADP8860_LED_ONT_600ms 1
#define ADP8860_LED_ONT_800ms 2
#define ADP8860_LED_ONT_1200ms 3
#define ADP8860_LED_D7 (7)
#define ADP8860_LED_D6 (6)
#define ADP8860_LED_D5 (5)
#define ADP8860_LED_D4 (4)
#define ADP8860_LED_D3 (3)
#define ADP8860_LED_D2 (2)
#define ADP8860_LED_D1 (1)
/*
* Backlight subdevice platform data
*/
#define ADP8860_BL_D7 (1 << 6)
#define ADP8860_BL_D6 (1 << 5)
#define ADP8860_BL_D5 (1 << 4)
#define ADP8860_BL_D4 (1 << 3)
#define ADP8860_BL_D3 (1 << 2)
#define ADP8860_BL_D2 (1 << 1)
#define ADP8860_BL_D1 (1 << 0)
#define ADP8860_FADE_T_DIS 0 /* Fade Timer Disabled */
#define ADP8860_FADE_T_300ms 1 /* 0.3 Sec */
#define ADP8860_FADE_T_600ms 2
#define ADP8860_FADE_T_900ms 3
#define ADP8860_FADE_T_1200ms 4
#define ADP8860_FADE_T_1500ms 5
#define ADP8860_FADE_T_1800ms 6
#define ADP8860_FADE_T_2100ms 7
#define ADP8860_FADE_T_2400ms 8
#define ADP8860_FADE_T_2700ms 9
#define ADP8860_FADE_T_3000ms 10
#define ADP8860_FADE_T_3500ms 11
#define ADP8860_FADE_T_4000ms 12
#define ADP8860_FADE_T_4500ms 13
#define ADP8860_FADE_T_5000ms 14
#define ADP8860_FADE_T_5500ms 15 /* 5.5 Sec */
#define ADP8860_FADE_LAW_LINEAR 0
#define ADP8860_FADE_LAW_SQUARE 1
#define ADP8860_FADE_LAW_CUBIC1 2
#define ADP8860_FADE_LAW_CUBIC2 3
#define ADP8860_BL_AMBL_FILT_80ms 0 /* Light sensor filter time */
#define ADP8860_BL_AMBL_FILT_160ms 1
#define ADP8860_BL_AMBL_FILT_320ms 2
#define ADP8860_BL_AMBL_FILT_640ms 3
#define ADP8860_BL_AMBL_FILT_1280ms 4
#define ADP8860_BL_AMBL_FILT_2560ms 5
#define ADP8860_BL_AMBL_FILT_5120ms 6
#define ADP8860_BL_AMBL_FILT_10240ms 7 /* 10.24 sec */
/*
* Blacklight current 0..30mA
*/
#define ADP8860_BL_CUR_mA(I) ((I * 127) / 30)
/*
* L2 comparator current 0..1106uA
*/
#define ADP8860_L2_COMP_CURR_uA(I) ((I * 255) / 1106)
/*
* L3 comparator current 0..138uA
*/
#define ADP8860_L3_COMP_CURR_uA(I) ((I * 255) / 138)
struct adp8860_backlight_platform_data {
u8 bl_led_assign; /* 1 = Backlight 0 = Individual LED */
u8 bl_fade_in; /* Backlight Fade-In Timer */
u8 bl_fade_out; /* Backlight Fade-Out Timer */
u8 bl_fade_law; /* fade-on/fade-off transfer characteristic */
u8 en_ambl_sens; /* 1 = enable ambient light sensor */
u8 abml_filt; /* Light sensor filter time */
u8 l1_daylight_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l1_daylight_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l2_office_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l2_office_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l3_dark_max; /* use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l3_dark_dim; /* typ = 0, use BL_CUR_mA(I) 0 <= I <= 30 mA */
u8 l2_trip; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */
u8 l2_hyst; /* use L2_COMP_CURR_uA(I) 0 <= I <= 1106 uA */
u8 l3_trip; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */
u8 l3_hyst; /* use L3_COMP_CURR_uA(I) 0 <= I <= 551 uA */
/**
* Independent Current Sinks / LEDS
* Sinks not assigned to the Backlight can be exposed to
* user space using the LEDS CLASS interface
*/
int num_leds;
struct led_info *leds;
u8 led_fade_in; /* LED Fade-In Timer */
u8 led_fade_out; /* LED Fade-Out Timer */
u8 led_fade_law; /* fade-on/fade-off transfer characteristic */
u8 led_on_time;
/**
* Gain down disable. Setting this option does not allow the
* charge pump to switch to lower gains. NOT AVAILABLE on ADP8860
* 1 = the charge pump doesn't switch down in gain until all LEDs are 0.
* The charge pump switches up in gain as needed. This feature is
* useful if the ADP8863 charge pump is used to drive an external load.
* This feature must be used when utilizing small fly capacitors
* (0402 or smaller).
* 0 = the charge pump automatically switches up and down in gain.
* This provides optimal efficiency, but is not suitable for driving
* loads that are not connected through the ADP8863 diode drivers.
* Additionally, the charge pump fly capacitors should be low ESR
* and sized 0603 or greater.
*/
u8 gdwn_dis;
};
#endif /* __LINUX_I2C_ADP8860_H */

23
include/linux/lcd.h
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@ -69,6 +69,29 @@ struct lcd_device {
struct device dev;
};
struct lcd_platform_data {
/* reset lcd panel device. */
int (*reset)(struct lcd_device *ld);
/* on or off to lcd panel. if 'enable' is 0 then
lcd power off and 1, lcd power on. */
int (*power_on)(struct lcd_device *ld, int enable);
/* it indicates whether lcd panel was enabled
from bootloader or not. */
int lcd_enabled;
/* it means delay for stable time when it becomes low to high
or high to low that is dependent on whether reset gpio is
low active or high active. */
unsigned int reset_delay;
/* stable time needing to become lcd power on. */
unsigned int power_on_delay;
/* stable time needing to become lcd power off. */
unsigned int power_off_delay;
/* it could be used for any purpose. */
void *pdata;
};
static inline void lcd_set_power(struct lcd_device *ld, int power)
{
mutex_lock(&ld->update_lock);

51
include/linux/mfd/pcf50633/backlight.h Normal file
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@ -0,0 +1,51 @@
/*
* Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
* PCF50633 backlight device driver
*
* 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.
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef __LINUX_MFD_PCF50633_BACKLIGHT
#define __LINUX_MFD_PCF50633_BACKLIGHT
/*
* @default_brightness: Backlight brightness is initialized to this value
*
* Brightness to be used after the driver has been probed.
* Valid range 0-63.
*
* @default_brightness_limit: The actual brightness is limited by this value
*
* Brightness limit to be used after the driver has been probed. This is useful
* when it is not known how much power is available for the backlight during
* probe.
* Valid range 0-63. Can be changed later with pcf50633_bl_set_brightness_limit.
*
* @ramp_time: Display ramp time when changing brightness
*
* When changing the backlights brightness the change is not instant, instead
* it fades smooth from one state to another. This value specifies how long
* the fade should take. The lower the value the higher the fade time.
* Valid range 0-255
*/
struct pcf50633_bl_platform_data {
unsigned int default_brightness;
unsigned int default_brightness_limit;
uint8_t ramp_time;
};
struct pcf50633;
int pcf50633_bl_set_brightness_limit(struct pcf50633 *pcf, unsigned int limit);
#endif

4
include/linux/mfd/pcf50633/core.h
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@ -18,6 +18,7 @@
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/power_supply.h>
#include <linux/mfd/pcf50633/backlight.h>
struct pcf50633;
@ -43,6 +44,8 @@ struct pcf50633_platform_data {
void (*force_shutdown)(struct pcf50633 *);
u8 resumers[5];
struct pcf50633_bl_platform_data *backlight_data;
};
struct pcf50633_irq {
@ -152,6 +155,7 @@ struct pcf50633 {
struct platform_device *mbc_pdev;
struct platform_device *adc_pdev;
struct platform_device *input_pdev;
struct platform_device *bl_pdev;
struct platform_device *regulator_pdev[PCF50633_NUM_REGULATORS];
};