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Commit 3f2dcb64 authored by Linus Torvalds's avatar Linus Torvalds
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Merge tag 'backlight-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight 

Pull backlight updates from Lee Jones:
 "Old Drivers
   - Remove driver for S6E63M0
   - Remove driver for LD9040

  Fix-ups
   - Trivial (email address update); adp*_bl
   - Use 'atomic' PWM API; pwm_bl

  Bug Fixes
   - Remove pointless boolen '&ptr' check; lm3639_bl"

* tag 'backlight-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  backlight: Remove ld9040 driver
  backlight: Remove s6e63m0 driver
  backlight: lm3639: Unconditionally call led_classdev_unregister
  backlight: pwm_bl: Switch to using "atomic" PWM API
  backlight: Update MODULE AUTHOR email address
parents 3ea172c8 e1c9f2ea
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Documentation/ABI/testing/sysfs-class-lcd-s6e63m0 deleted 100644 → 0
View file @ 3ea172c8
sysfs interface for the S6E63M0 AMOLED LCD panel driver
-------------------------------------------------------
What: /sys/class/lcd/<lcd>/gamma_mode
Date: May, 2010
KernelVersion: v2.6.35
Contact: dri-devel@lists.freedesktop.org
Description:
(RW) Read or write the gamma mode. Following three modes are
supported:
0 - gamma value 2.2,
1 - gamma value 1.9 and
2 - gamma value 1.7.
What: /sys/class/lcd/<lcd>/gamma_table
Date: May, 2010
KernelVersion: v2.6.35
Contact: dri-devel@lists.freedesktop.org
Description:
(RO) Displays the size of the gamma table i.e. the number of
gamma modes available.
This is a backlight lcd driver. These interfaces are an extension to the API
documented in Documentation/ABI/testing/sysfs-class-lcd and in
Documentation/ABI/stable/sysfs-class-backlight (under
/sys/class/backlight/<backlight>/).
drivers/video/backlight/Kconfig
View file @ 3f2dcb64
...@@ -111,22 +111,6 @@ config LCD_HP700 ...@@ -111,22 +111,6 @@ config LCD_HP700
If you have an HP Jornada 700 series handheld (710/720/728) If you have an HP Jornada 700 series handheld (710/720/728)
say Y to enable LCD control driver. 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.
config LCD_LD9040
tristate "LD9040 AMOLED LCD Driver"
depends on SPI && BACKLIGHT_CLASS_DEVICE
default n
help
If you have an LD9040 Panel, say Y to enable its
control driver.
config LCD_AMS369FG06 config LCD_AMS369FG06
tristate "AMS369FG06 AMOLED LCD Driver" tristate "AMS369FG06 AMOLED LCD Driver"
depends on SPI && BACKLIGHT_CLASS_DEVICE depends on SPI && BACKLIGHT_CLASS_DEVICE
......
drivers/video/backlight/Makefile
View file @ 3f2dcb64
...@@ -9,13 +9,11 @@ obj-$(CONFIG_LCD_HX8357) += hx8357.o ...@@ -9,13 +9,11 @@ obj-$(CONFIG_LCD_HX8357) += hx8357.o
obj-$(CONFIG_LCD_ILI922X) += ili922x.o obj-$(CONFIG_LCD_ILI922X) += ili922x.o
obj-$(CONFIG_LCD_ILI9320) += ili9320.o obj-$(CONFIG_LCD_ILI9320) += ili9320.o
obj-$(CONFIG_LCD_L4F00242T03) += l4f00242t03.o obj-$(CONFIG_LCD_L4F00242T03) += l4f00242t03.o
obj-$(CONFIG_LCD_LD9040) += ld9040.o
obj-$(CONFIG_LCD_LMS283GF05) += lms283gf05.o obj-$(CONFIG_LCD_LMS283GF05) += lms283gf05.o
obj-$(CONFIG_LCD_LMS501KF03) += lms501kf03.o obj-$(CONFIG_LCD_LMS501KF03) += lms501kf03.o
obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
obj-$(CONFIG_LCD_OTM3225A) += otm3225a.o obj-$(CONFIG_LCD_OTM3225A) += otm3225a.o
obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
obj-$(CONFIG_LCD_S6E63M0) += s6e63m0.o
obj-$(CONFIG_LCD_TDO24M) += tdo24m.o obj-$(CONFIG_LCD_TDO24M) += tdo24m.o
obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o obj-$(CONFIG_LCD_TOSA) += tosa_lcd.o
obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
......
drivers/video/backlight/adp5520_bl.c
View file @ 3f2dcb64
...@@ -391,7 +391,7 @@ static struct platform_driver adp5520_bl_driver = { ...@@ -391,7 +391,7 @@ static struct platform_driver adp5520_bl_driver = {
module_platform_driver(adp5520_bl_driver); module_platform_driver(adp5520_bl_driver);
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("ADP5520(01) Backlight Driver"); MODULE_DESCRIPTION("ADP5520(01) Backlight Driver");
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:adp5520-backlight"); MODULE_ALIAS("platform:adp5520-backlight");
drivers/video/backlight/adp8860_bl.c
View file @ 3f2dcb64
...@@ -822,5 +822,5 @@ static struct i2c_driver adp8860_driver = { ...@@ -822,5 +822,5 @@ static struct i2c_driver adp8860_driver = {
module_i2c_driver(adp8860_driver); module_i2c_driver(adp8860_driver);
MODULE_LICENSE("GPL v2"); MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("ADP8860 Backlight driver"); MODULE_DESCRIPTION("ADP8860 Backlight driver");
drivers/video/backlight/adp8870_bl.c
View file @ 3f2dcb64
...@@ -992,5 +992,5 @@ static struct i2c_driver adp8870_driver = { ...@@ -992,5 +992,5 @@ static struct i2c_driver adp8870_driver = {
module_i2c_driver(adp8870_driver); module_i2c_driver(adp8870_driver);
MODULE_LICENSE("GPL v2"); MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
MODULE_DESCRIPTION("ADP8870 Backlight driver"); MODULE_DESCRIPTION("ADP8870 Backlight driver");
drivers/video/backlight/ld9040.c deleted 100644 → 0
View file @ 3ea172c8
/*
* ld9040 AMOLED LCD panel driver.
*
* Copyright (c) 2011 Samsung Electronics
* Author: Donghwa Lee <dh09.lee@samsung.com>
* Derived from drivers/video/backlight/s6e63m0.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.
*/
#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/lcd.h>
#include <linux/module.h>
#include <linux/regulator/consumer.h>
#include <linux/spi/spi.h>
#include <linux/wait.h>
#include "ld9040_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 24
struct ld9040 {
struct device *dev;
struct spi_device *spi;
unsigned int power;
unsigned int current_brightness;
struct lcd_device *ld;
struct backlight_device *bd;
struct lcd_platform_data *lcd_pd;
struct mutex lock;
bool enabled;
};
static struct regulator_bulk_data supplies[] = {
{ .supply = "vdd3", },
{ .supply = "vci", },
};
static void ld9040_regulator_enable(struct ld9040 *lcd)
{
int ret = 0;
struct lcd_platform_data *pd = NULL;
pd = lcd->lcd_pd;
mutex_lock(&lcd->lock);
if (!lcd->enabled) {
ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies);
if (ret)
goto out;
lcd->enabled = true;
}
msleep(pd->power_on_delay);
out:
mutex_unlock(&lcd->lock);
}
static void ld9040_regulator_disable(struct ld9040 *lcd)
{
int ret = 0;
mutex_lock(&lcd->lock);
if (lcd->enabled) {
ret = regulator_bulk_disable(ARRAY_SIZE(supplies), supplies);
if (ret)
goto out;
lcd->enabled = false;
}
out:
mutex_unlock(&lcd->lock);
}
static const unsigned short seq_swreset[] = {
0x01, COMMAND_ONLY,
ENDDEF, 0x00
};
static const unsigned short seq_user_setting[] = {
0xF0, 0x5A,
DATA_ONLY, 0x5A,
ENDDEF, 0x00
};
static const unsigned short seq_elvss_on[] = {
0xB1, 0x0D,
DATA_ONLY, 0x00,
DATA_ONLY, 0x16,
ENDDEF, 0x00
};
static const unsigned short seq_gtcon[] = {
0xF7, 0x09,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
ENDDEF, 0x00
};
static const unsigned short seq_panel_condition[] = {
0xF8, 0x05,
DATA_ONLY, 0x65,
DATA_ONLY, 0x96,
DATA_ONLY, 0x71,
DATA_ONLY, 0x7D,
DATA_ONLY, 0x19,
DATA_ONLY, 0x3B,
DATA_ONLY, 0x0D,
DATA_ONLY, 0x19,
DATA_ONLY, 0x7E,
DATA_ONLY, 0x0D,
DATA_ONLY, 0xE2,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x7E,
DATA_ONLY, 0x7D,
DATA_ONLY, 0x07,
DATA_ONLY, 0x07,
DATA_ONLY, 0x20,
DATA_ONLY, 0x20,
DATA_ONLY, 0x20,
DATA_ONLY, 0x02,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_gamma_set1[] = {
0xF9, 0x00,
DATA_ONLY, 0xA7,
DATA_ONLY, 0xB4,
DATA_ONLY, 0xAE,
DATA_ONLY, 0xBF,
DATA_ONLY, 0x00,
DATA_ONLY, 0x91,
DATA_ONLY, 0x00,
DATA_ONLY, 0xB2,
DATA_ONLY, 0xB4,
DATA_ONLY, 0xAA,
DATA_ONLY, 0xBB,
DATA_ONLY, 0x00,
DATA_ONLY, 0xAC,
DATA_ONLY, 0x00,
DATA_ONLY, 0xB3,
DATA_ONLY, 0xB1,
DATA_ONLY, 0xAA,
DATA_ONLY, 0xBC,
DATA_ONLY, 0x00,
DATA_ONLY, 0xB3,
ENDDEF, 0x00
};
static const unsigned short seq_gamma_ctrl[] = {
0xFB, 0x02,
DATA_ONLY, 0x5A,
ENDDEF, 0x00
};
static const unsigned short seq_gamma_start[] = {
0xF9, COMMAND_ONLY,
ENDDEF, 0x00
};
static const unsigned short seq_apon[] = {
0xF3, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x0A,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_display_ctrl[] = {
0xF2, 0x02,
DATA_ONLY, 0x08,
DATA_ONLY, 0x08,
DATA_ONLY, 0x10,
DATA_ONLY, 0x10,
ENDDEF, 0x00
};
static const unsigned short seq_manual_pwr[] = {
0xB0, 0x04,
ENDDEF, 0x00
};
static const unsigned short seq_pwr_ctrl[] = {
0xF4, 0x0A,
DATA_ONLY, 0x87,
DATA_ONLY, 0x25,
DATA_ONLY, 0x6A,
DATA_ONLY, 0x44,
DATA_ONLY, 0x02,
DATA_ONLY, 0x88,
ENDDEF, 0x00
};
static const unsigned short seq_sleep_out[] = {
0x11, COMMAND_ONLY,
ENDDEF, 0x00
};
static const unsigned short seq_sleep_in[] = {
0x10, COMMAND_ONLY,
ENDDEF, 0x00
};
static const unsigned short seq_display_on[] = {
0x29, COMMAND_ONLY,
ENDDEF, 0x00
};
static const unsigned short seq_display_off[] = {
0x28, COMMAND_ONLY,
ENDDEF, 0x00
};
static const unsigned short seq_vci1_1st_en[] = {
0xF3, 0x10,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_vl1_en[] = {
0xF3, 0x11,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_vl2_en[] = {
0xF3, 0x13,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_vci1_2nd_en[] = {
0xF3, 0x33,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_vl3_en[] = {
0xF3, 0x37,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_vreg1_amp_en[] = {
0xF3, 0x37,
DATA_ONLY, 0x01,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_vgh_amp_en[] = {
0xF3, 0x37,
DATA_ONLY, 0x11,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_vgl_amp_en[] = {
0xF3, 0x37,
DATA_ONLY, 0x31,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x02,
ENDDEF, 0x00
};
static const unsigned short seq_vmos_amp_en[] = {
0xF3, 0x37,
DATA_ONLY, 0xB1,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
ENDDEF, 0x00
};
static const unsigned short seq_vint_amp_en[] = {
0xF3, 0x37,
DATA_ONLY, 0xF1,
/* DATA_ONLY, 0x71, VMOS/VBL/VBH not used */
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
/* DATA_ONLY, 0x02, VMOS/VBL/VBH not used */
ENDDEF, 0x00
};
static const unsigned short seq_vbh_amp_en[] = {
0xF3, 0x37,
DATA_ONLY, 0xF9,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
ENDDEF, 0x00
};
static const unsigned short seq_vbl_amp_en[] = {
0xF3, 0x37,
DATA_ONLY, 0xFD,
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
ENDDEF, 0x00
};
static const unsigned short seq_gam_amp_en[] = {
0xF3, 0x37,
DATA_ONLY, 0xFF,
/* DATA_ONLY, 0x73, VMOS/VBL/VBH not used */
DATA_ONLY, 0x00,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
/* DATA_ONLY, 0x02, VMOS/VBL/VBH not used */
ENDDEF, 0x00
};
static const unsigned short seq_sd_amp_en[] = {
0xF3, 0x37,
DATA_ONLY, 0xFF,
/* DATA_ONLY, 0x73, VMOS/VBL/VBH not used */
DATA_ONLY, 0x80,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
/* DATA_ONLY, 0x02, VMOS/VBL/VBH not used */
ENDDEF, 0x00
};
static const unsigned short seq_gls_en[] = {
0xF3, 0x37,
DATA_ONLY, 0xFF,
/* DATA_ONLY, 0x73, VMOS/VBL/VBH not used */
DATA_ONLY, 0x81,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
/* DATA_ONLY, 0x02, VMOS/VBL/VBH not used */
ENDDEF, 0x00
};
static const unsigned short seq_els_en[] = {
0xF3, 0x37,
DATA_ONLY, 0xFF,
/* DATA_ONLY, 0x73, VMOS/VBL/VBH not used */
DATA_ONLY, 0x83,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
/* DATA_ONLY, 0x02, VMOS/VBL/VBH not used */
ENDDEF, 0x00
};
static const unsigned short seq_el_on[] = {
0xF3, 0x37,
DATA_ONLY, 0xFF,
/* DATA_ONLY, 0x73, VMOS/VBL/VBH not used */
DATA_ONLY, 0x87,
DATA_ONLY, 0x00,
DATA_ONLY, 0x03,
/* DATA_ONLY, 0x02, VMOS/VBL/VBH not used */
ENDDEF, 0x00
};
static int ld9040_spi_write_byte(struct ld9040 *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 ld9040_spi_write(struct ld9040 *lcd, unsigned char address,
unsigned char command)
{
int ret = 0;
if (address != DATA_ONLY)
ret = ld9040_spi_write_byte(lcd, 0x0, address);
if (command != COMMAND_ONLY)
ret = ld9040_spi_write_byte(lcd, 0x1, command);
return ret;
}
static int ld9040_panel_send_sequence(struct ld9040 *lcd,
const unsigned short *wbuf)
{
int ret = 0, i = 0;
while ((wbuf[i] & DEFMASK) != ENDDEF) {
if ((wbuf[i] & DEFMASK) != SLEEPMSEC) {
ret = ld9040_spi_write(lcd, wbuf[i], wbuf[i+1]);
if (ret)
break;
} else {
msleep(wbuf[i+1]);
}
i += 2;
}
return ret;
}
static int _ld9040_gamma_ctl(struct ld9040 *lcd, const unsigned int *gamma)
{
unsigned int i = 0;
int ret = 0;
/* start gamma table updating. */
ret = ld9040_panel_send_sequence(lcd, seq_gamma_start);
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 = ld9040_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 = ld9040_panel_send_sequence(lcd, seq_gamma_ctrl);
if (ret)
dev_err(lcd->dev, "failed to update gamma table.\n");
gamma_err:
return ret;
}
static int ld9040_gamma_ctl(struct ld9040 *lcd, int gamma)
{
return _ld9040_gamma_ctl(lcd, gamma_table.gamma_22_table[gamma]);
}
static int ld9040_ldi_init(struct ld9040 *lcd)
{
int ret, i;
static const unsigned short *init_seq[] = {
seq_user_setting,
seq_panel_condition,
seq_display_ctrl,
seq_manual_pwr,
seq_elvss_on,
seq_gtcon,
seq_gamma_set1,
seq_gamma_ctrl,
seq_sleep_out,
};
for (i = 0; i < ARRAY_SIZE(init_seq); i++) {
ret = ld9040_panel_send_sequence(lcd, init_seq[i]);
/* workaround: minimum delay time for transferring CMD */
usleep_range(300, 310);
if (ret)
break;
}
return ret;
}
static int ld9040_ldi_enable(struct ld9040 *lcd)
{
return ld9040_panel_send_sequence(lcd, seq_display_on);
}
static int ld9040_ldi_disable(struct ld9040 *lcd)
{
int ret;
ret = ld9040_panel_send_sequence(lcd, seq_display_off);
ret = ld9040_panel_send_sequence(lcd, seq_sleep_in);
return ret;
}
static int ld9040_power_is_on(int power)
{
return power <= FB_BLANK_NORMAL;
}
static int ld9040_power_on(struct ld9040 *lcd)
{
int ret = 0;
struct lcd_platform_data *pd;
pd = lcd->lcd_pd;
/* lcd power on */
ld9040_regulator_enable(lcd);
if (!pd->reset) {
dev_err(lcd->dev, "reset is NULL.\n");
return -EINVAL;
}
pd->reset(lcd->ld);
msleep(pd->reset_delay);
ret = ld9040_ldi_init(lcd);
if (ret) {
dev_err(lcd->dev, "failed to initialize ldi.\n");
return ret;
}
ret = ld9040_ldi_enable(lcd);
if (ret) {
dev_err(lcd->dev, "failed to enable ldi.\n");
return ret;
}
return 0;
}
static int ld9040_power_off(struct ld9040 *lcd)
{
int ret;
struct lcd_platform_data *pd;
pd = lcd->lcd_pd;
ret = ld9040_ldi_disable(lcd);
if (ret) {
dev_err(lcd->dev, "lcd setting failed.\n");
return -EIO;
}
msleep(pd->power_off_delay);
/* lcd power off */
ld9040_regulator_disable(lcd);
return 0;
}
static int ld9040_power(struct ld9040 *lcd, int power)
{
int ret = 0;
if (ld9040_power_is_on(power) && !ld9040_power_is_on(lcd->power))
ret = ld9040_power_on(lcd);
else if (!ld9040_power_is_on(power) && ld9040_power_is_on(lcd->power))
ret = ld9040_power_off(lcd);
if (!ret)
lcd->power = power;
return ret;
}
static int ld9040_set_power(struct lcd_device *ld, int power)
{
struct ld9040 *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 ld9040_power(lcd, power);
}
static int ld9040_get_power(struct lcd_device *ld)
{
struct ld9040 *lcd = lcd_get_data(ld);
return lcd->power;
}
static int ld9040_set_brightness(struct backlight_device *bd)
{
int ret = 0, brightness = bd->props.brightness;
struct ld9040 *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 = ld9040_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 ld9040_lcd_ops = {
.set_power = ld9040_set_power,
.get_power = ld9040_get_power,
};
static const struct backlight_ops ld9040_backlight_ops = {
.update_status = ld9040_set_brightness,
};
static int ld9040_probe(struct spi_device *spi)
{
int ret = 0;
struct ld9040 *lcd = NULL;
struct lcd_device *ld = NULL;
struct backlight_device *bd = NULL;
struct backlight_properties props;
lcd = devm_kzalloc(&spi->dev, sizeof(struct ld9040), GFP_KERNEL);
if (!lcd)
return -ENOMEM;
/* ld9040 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");
return ret;
}
lcd->spi = spi;
lcd->dev = &spi->dev;
lcd->lcd_pd = dev_get_platdata(&spi->dev);
if (!lcd->lcd_pd) {
dev_err(&spi->dev, "platform data is NULL.\n");
return -EINVAL;
}
mutex_init(&lcd->lock);
ret = devm_regulator_bulk_get(lcd->dev, ARRAY_SIZE(supplies), supplies);
if (ret) {
dev_err(lcd->dev, "Failed to get regulators: %d\n", ret);
return ret;
}
ld = devm_lcd_device_register(&spi->dev, "ld9040", &spi->dev, lcd,
&ld9040_lcd_ops);
if (IS_ERR(ld))
return PTR_ERR(ld);
lcd->ld = ld;
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_RAW;
props.max_brightness = MAX_BRIGHTNESS;
bd = devm_backlight_device_register(&spi->dev, "ld9040-bl", &spi->dev,
lcd, &ld9040_backlight_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
bd->props.brightness = MAX_BRIGHTNESS;
lcd->bd = bd;
/*
* 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;
ld9040_power(lcd, FB_BLANK_UNBLANK);
} else {
lcd->power = FB_BLANK_UNBLANK;
}
spi_set_drvdata(spi, lcd);
dev_info(&spi->dev, "ld9040 panel driver has been probed.\n");
return 0;
}
static int ld9040_remove(struct spi_device *spi)
{
struct ld9040 *lcd = spi_get_drvdata(spi);
ld9040_power(lcd, FB_BLANK_POWERDOWN);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int ld9040_suspend(struct device *dev)
{
struct ld9040 *lcd = dev_get_drvdata(dev);
dev_dbg(dev, "lcd->power = %d\n", lcd->power);
/*
* when lcd panel is suspend, lcd panel becomes off
* regardless of status.
*/
return ld9040_power(lcd, FB_BLANK_POWERDOWN);
}
static int ld9040_resume(struct device *dev)
{
struct ld9040 *lcd = dev_get_drvdata(dev);
lcd->power = FB_BLANK_POWERDOWN;
return ld9040_power(lcd, FB_BLANK_UNBLANK);
}
#endif
static SIMPLE_DEV_PM_OPS(ld9040_pm_ops, ld9040_suspend, ld9040_resume);
/* Power down all displays on reboot, poweroff or halt. */
static void ld9040_shutdown(struct spi_device *spi)
{
struct ld9040 *lcd = spi_get_drvdata(spi);
ld9040_power(lcd, FB_BLANK_POWERDOWN);
}
static struct spi_driver ld9040_driver = {
.driver = {
.name = "ld9040",
.pm = &ld9040_pm_ops,
},
.probe = ld9040_probe,
.remove = ld9040_remove,
.shutdown = ld9040_shutdown,
};
module_spi_driver(ld9040_driver);
MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
MODULE_DESCRIPTION("ld9040 LCD Driver");
MODULE_LICENSE("GPL");
drivers/video/backlight/ld9040_gamma.h deleted 100644 → 0
View file @ 3ea172c8
/*
* Gamma level definitions.
*
* Copyright (c) 2011 Samsung Electronics
* InKi Dae <inki.dae@samsung.com>
* Donghwa Lee <dh09.lee@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 _LD9040_BRIGHTNESS_H
#define _LD9040_BRIGHTNESS_H
#define MAX_GAMMA_LEVEL 25
#define GAMMA_TABLE_COUNT 21
/* gamma value: 2.2 */
static const unsigned int ld9040_22_300[] = {
0x00, 0xa7, 0xb4, 0xae, 0xbf, 0x00, 0x91,
0x00, 0xb2, 0xb4, 0xaa, 0xbb, 0x00, 0xac,
0x00, 0xb3, 0xb1, 0xaa, 0xbc, 0x00, 0xb3
};
static const unsigned int ld9040_22_290[] = {
0x00, 0xa9, 0xb7, 0xae, 0xbd, 0x00, 0x89,
0x00, 0xb7, 0xb6, 0xa8, 0xba, 0x00, 0xa4,
0x00, 0xb1, 0xb4, 0xaa, 0xbb, 0x00, 0xaa
};
static const unsigned int ld9040_22_280[] = {
0x00, 0xa9, 0xb6, 0xad, 0xbf, 0x00, 0x86,
0x00, 0xb8, 0xb5, 0xa8, 0xbc, 0x00, 0xa0,
0x00, 0xb3, 0xb3, 0xa9, 0xbc, 0x00, 0xa7
};
static const unsigned int ld9040_22_270[] = {
0x00, 0xa8, 0xb8, 0xae, 0xbe, 0x00, 0x84,
0x00, 0xb9, 0xb7, 0xa8, 0xbc, 0x00, 0x9d,
0x00, 0xb2, 0xb5, 0xaa, 0xbc, 0x00, 0xa4
};
static const unsigned int ld9040_22_260[] = {
0x00, 0xa4, 0xb8, 0xb0, 0xbf, 0x00, 0x80,
0x00, 0xb8, 0xb6, 0xaa, 0xbc, 0x00, 0x9a,
0x00, 0xb0, 0xb5, 0xab, 0xbd, 0x00, 0xa0
};
static const unsigned int ld9040_22_250[] = {
0x00, 0xa4, 0xb9, 0xaf, 0xc1, 0x00, 0x7d,
0x00, 0xb9, 0xb6, 0xaa, 0xbb, 0x00, 0x97,
0x00, 0xb1, 0xb5, 0xaa, 0xbf, 0x00, 0x9d
};
static const unsigned int ld9040_22_240[] = {
0x00, 0xa2, 0xb9, 0xaf, 0xc2, 0x00, 0x7a,
0x00, 0xb9, 0xb7, 0xaa, 0xbd, 0x00, 0x94,
0x00, 0xb0, 0xb5, 0xab, 0xbf, 0x00, 0x9a
};
static const unsigned int ld9040_22_230[] = {
0x00, 0xa0, 0xb9, 0xaf, 0xc3, 0x00, 0x77,
0x00, 0xb9, 0xb7, 0xab, 0xbe, 0x00, 0x90,
0x00, 0xb0, 0xb6, 0xab, 0xbf, 0x00, 0x97
};
static const unsigned int ld9040_22_220[] = {
0x00, 0x9e, 0xba, 0xb0, 0xc2, 0x00, 0x75,
0x00, 0xb9, 0xb8, 0xab, 0xbe, 0x00, 0x8e,
0x00, 0xb0, 0xb6, 0xac, 0xbf, 0x00, 0x94
};
static const unsigned int ld9040_22_210[] = {
0x00, 0x9c, 0xb9, 0xb0, 0xc4, 0x00, 0x72,
0x00, 0xb8, 0xb8, 0xac, 0xbf, 0x00, 0x8a,
0x00, 0xb0, 0xb6, 0xac, 0xc0, 0x00, 0x91
};
static const unsigned int ld9040_22_200[] = {
0x00, 0x9a, 0xba, 0xb1, 0xc4, 0x00, 0x6f,
0x00, 0xb8, 0xb8, 0xad, 0xc0, 0x00, 0x86,
0x00, 0xb0, 0xb7, 0xad, 0xc0, 0x00, 0x8d
};
static const unsigned int ld9040_22_190[] = {
0x00, 0x97, 0xba, 0xb2, 0xc5, 0x00, 0x6c,
0x00, 0xb8, 0xb8, 0xae, 0xc1, 0x00, 0x82,
0x00, 0xb0, 0xb6, 0xae, 0xc2, 0x00, 0x89
};
static const unsigned int ld9040_22_180[] = {
0x00, 0x93, 0xba, 0xb3, 0xc5, 0x00, 0x69,
0x00, 0xb8, 0xb9, 0xae, 0xc1, 0x00, 0x7f,
0x00, 0xb0, 0xb6, 0xae, 0xc3, 0x00, 0x85
};
static const unsigned int ld9040_22_170[] = {
0x00, 0x8b, 0xb9, 0xb3, 0xc7, 0x00, 0x65,
0x00, 0xb7, 0xb8, 0xaf, 0xc3, 0x00, 0x7a,
0x00, 0x80, 0xb6, 0xae, 0xc4, 0x00, 0x81
};
static const unsigned int ld9040_22_160[] = {
0x00, 0x89, 0xba, 0xb3, 0xc8, 0x00, 0x62,
0x00, 0xb6, 0xba, 0xaf, 0xc3, 0x00, 0x76,
0x00, 0xaf, 0xb7, 0xae, 0xc4, 0x00, 0x7e
};
static const unsigned int ld9040_22_150[] = {
0x00, 0x82, 0xba, 0xb4, 0xc7, 0x00, 0x5f,
0x00, 0xb5, 0xba, 0xb0, 0xc3, 0x00, 0x72,
0x00, 0xae, 0xb8, 0xb0, 0xc3, 0x00, 0x7a
};
static const unsigned int ld9040_22_140[] = {
0x00, 0x7b, 0xbb, 0xb4, 0xc8, 0x00, 0x5b,
0x00, 0xb5, 0xba, 0xb1, 0xc4, 0x00, 0x6e,
0x00, 0xae, 0xb9, 0xb0, 0xc5, 0x00, 0x75
};
static const unsigned int ld9040_22_130[] = {
0x00, 0x71, 0xbb, 0xb5, 0xc8, 0x00, 0x57,
0x00, 0xb5, 0xbb, 0xb0, 0xc5, 0x00, 0x6a,
0x00, 0xae, 0xb9, 0xb1, 0xc6, 0x00, 0x70
};
static const unsigned int ld9040_22_120[] = {
0x00, 0x47, 0xba, 0xb6, 0xca, 0x00, 0x53,
0x00, 0xb5, 0xbb, 0xb3, 0xc6, 0x00, 0x65,
0x00, 0xae, 0xb8, 0xb3, 0xc7, 0x00, 0x6c
};
static const unsigned int ld9040_22_110[] = {
0x00, 0x13, 0xbb, 0xb7, 0xca, 0x00, 0x4f,
0x00, 0xb4, 0xbb, 0xb3, 0xc7, 0x00, 0x60,
0x00, 0xad, 0xb8, 0xb4, 0xc7, 0x00, 0x67
};
static const unsigned int ld9040_22_100[] = {
0x00, 0x13, 0xba, 0xb8, 0xcb, 0x00, 0x4b,
0x00, 0xb3, 0xbc, 0xb4, 0xc7, 0x00, 0x5c,
0x00, 0xac, 0xb8, 0xb4, 0xc8, 0x00, 0x62
};
static const unsigned int ld9040_22_90[] = {
0x00, 0x13, 0xb9, 0xb8, 0xcd, 0x00, 0x46,
0x00, 0xb1, 0xbc, 0xb5, 0xc8, 0x00, 0x56,
0x00, 0xaa, 0xb8, 0xb4, 0xc9, 0x00, 0x5d
};
static const unsigned int ld9040_22_80[] = {
0x00, 0x13, 0xba, 0xb9, 0xcd, 0x00, 0x41,
0x00, 0xb0, 0xbe, 0xb5, 0xc9, 0x00, 0x51,
0x00, 0xa9, 0xb9, 0xb5, 0xca, 0x00, 0x57
};
static const unsigned int ld9040_22_70[] = {
0x00, 0x13, 0xb9, 0xb9, 0xd0, 0x00, 0x3c,
0x00, 0xaf, 0xbf, 0xb6, 0xcb, 0x00, 0x4b,
0x00, 0xa8, 0xb9, 0xb5, 0xcc, 0x00, 0x52
};
static const unsigned int ld9040_22_50[] = {
0x00, 0x13, 0xb2, 0xba, 0xd2, 0x00, 0x30,
0x00, 0xaf, 0xc0, 0xb8, 0xcd, 0x00, 0x3d,
0x00, 0xa8, 0xb8, 0xb7, 0xcd, 0x00, 0x44
};
struct ld9040_gamma {
unsigned int *gamma_22_table[MAX_GAMMA_LEVEL];
};
static struct ld9040_gamma gamma_table = {
.gamma_22_table[0] = (unsigned int *)&ld9040_22_50,
.gamma_22_table[1] = (unsigned int *)&ld9040_22_70,
.gamma_22_table[2] = (unsigned int *)&ld9040_22_80,
.gamma_22_table[3] = (unsigned int *)&ld9040_22_90,
.gamma_22_table[4] = (unsigned int *)&ld9040_22_100,
.gamma_22_table[5] = (unsigned int *)&ld9040_22_110,
.gamma_22_table[6] = (unsigned int *)&ld9040_22_120,
.gamma_22_table[7] = (unsigned int *)&ld9040_22_130,
.gamma_22_table[8] = (unsigned int *)&ld9040_22_140,
.gamma_22_table[9] = (unsigned int *)&ld9040_22_150,
.gamma_22_table[10] = (unsigned int *)&ld9040_22_160,
.gamma_22_table[11] = (unsigned int *)&ld9040_22_170,
.gamma_22_table[12] = (unsigned int *)&ld9040_22_180,
.gamma_22_table[13] = (unsigned int *)&ld9040_22_190,
.gamma_22_table[14] = (unsigned int *)&ld9040_22_200,
.gamma_22_table[15] = (unsigned int *)&ld9040_22_210,
.gamma_22_table[16] = (unsigned int *)&ld9040_22_220,
.gamma_22_table[17] = (unsigned int *)&ld9040_22_230,
.gamma_22_table[18] = (unsigned int *)&ld9040_22_240,
.gamma_22_table[19] = (unsigned int *)&ld9040_22_250,
.gamma_22_table[20] = (unsigned int *)&ld9040_22_260,
.gamma_22_table[21] = (unsigned int *)&ld9040_22_270,
.gamma_22_table[22] = (unsigned int *)&ld9040_22_280,
.gamma_22_table[23] = (unsigned int *)&ld9040_22_290,
.gamma_22_table[24] = (unsigned int *)&ld9040_22_300,
};
#endif
drivers/video/backlight/lm3639_bl.c
View file @ 3f2dcb64
...@@ -400,9 +400,7 @@ static int lm3639_remove(struct i2c_client *client) ...@@ -400,9 +400,7 @@ static int lm3639_remove(struct i2c_client *client)
regmap_write(pchip->regmap, REG_ENABLE, 0x00); regmap_write(pchip->regmap, REG_ENABLE, 0x00);
if (&pchip->cdev_torch)
led_classdev_unregister(&pchip->cdev_torch); led_classdev_unregister(&pchip->cdev_torch);
if (&pchip->cdev_flash)
led_classdev_unregister(&pchip->cdev_flash); led_classdev_unregister(&pchip->cdev_flash);
if (pchip->bled) if (pchip->bled)
device_remove_file(&(pchip->bled->dev), &dev_attr_bled_mode); device_remove_file(&(pchip->bled->dev), &dev_attr_bled_mode);
......
drivers/video/backlight/pwm_bl.c
View file @ 3f2dcb64
...@@ -28,10 +28,8 @@ ...@@ -28,10 +28,8 @@
struct pwm_bl_data { struct pwm_bl_data {
struct pwm_device *pwm; struct pwm_device *pwm;
struct device *dev; struct device *dev;
unsigned int period;
unsigned int lth_brightness; unsigned int lth_brightness;
unsigned int *levels; unsigned int *levels;
bool enabled;
struct regulator *power_supply; struct regulator *power_supply;
struct gpio_desc *enable_gpio; struct gpio_desc *enable_gpio;
unsigned int scale; unsigned int scale;
...@@ -46,31 +44,35 @@ struct pwm_bl_data { ...@@ -46,31 +44,35 @@ struct pwm_bl_data {
void (*exit)(struct device *); void (*exit)(struct device *);
}; };
static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness) static void pwm_backlight_power_on(struct pwm_bl_data *pb)
{ {
struct pwm_state state;
int err; int err;
if (pb->enabled) pwm_get_state(pb->pwm, &state);
if (state.enabled)
return; return;
err = regulator_enable(pb->power_supply); err = regulator_enable(pb->power_supply);
if (err < 0) if (err < 0)
dev_err(pb->dev, "failed to enable power supply\n"); dev_err(pb->dev, "failed to enable power supply\n");
pwm_enable(pb->pwm); state.enabled = true;
pwm_apply_state(pb->pwm, &state);
if (pb->post_pwm_on_delay) if (pb->post_pwm_on_delay)
msleep(pb->post_pwm_on_delay); msleep(pb->post_pwm_on_delay);
if (pb->enable_gpio) if (pb->enable_gpio)
gpiod_set_value_cansleep(pb->enable_gpio, 1); gpiod_set_value_cansleep(pb->enable_gpio, 1);
pb->enabled = true;
} }
static void pwm_backlight_power_off(struct pwm_bl_data *pb) static void pwm_backlight_power_off(struct pwm_bl_data *pb)
{ {
if (!pb->enabled) struct pwm_state state;
pwm_get_state(pb->pwm, &state);
if (!state.enabled)
return; return;
if (pb->enable_gpio) if (pb->enable_gpio)
...@@ -79,24 +81,27 @@ static void pwm_backlight_power_off(struct pwm_bl_data *pb) ...@@ -79,24 +81,27 @@ static void pwm_backlight_power_off(struct pwm_bl_data *pb)
if (pb->pwm_off_delay) if (pb->pwm_off_delay)
msleep(pb->pwm_off_delay); msleep(pb->pwm_off_delay);
pwm_config(pb->pwm, 0, pb->period); state.enabled = false;
pwm_disable(pb->pwm); state.duty_cycle = 0;
pwm_apply_state(pb->pwm, &state);
regulator_disable(pb->power_supply); regulator_disable(pb->power_supply);
pb->enabled = false;
} }
static int compute_duty_cycle(struct pwm_bl_data *pb, int brightness) static int compute_duty_cycle(struct pwm_bl_data *pb, int brightness)
{ {
unsigned int lth = pb->lth_brightness; unsigned int lth = pb->lth_brightness;
struct pwm_state state;
u64 duty_cycle; u64 duty_cycle;
pwm_get_state(pb->pwm, &state);
if (pb->levels) if (pb->levels)
duty_cycle = pb->levels[brightness]; duty_cycle = pb->levels[brightness];
else else
duty_cycle = brightness; duty_cycle = brightness;
duty_cycle *= pb->period - lth; duty_cycle *= state.period - lth;
do_div(duty_cycle, pb->scale); do_div(duty_cycle, pb->scale);
return duty_cycle + lth; return duty_cycle + lth;
...@@ -106,7 +111,7 @@ static int pwm_backlight_update_status(struct backlight_device *bl) ...@@ -106,7 +111,7 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
{ {
struct pwm_bl_data *pb = bl_get_data(bl); struct pwm_bl_data *pb = bl_get_data(bl);
int brightness = bl->props.brightness; int brightness = bl->props.brightness;
int duty_cycle; struct pwm_state state;
if (bl->props.power != FB_BLANK_UNBLANK || if (bl->props.power != FB_BLANK_UNBLANK ||
bl->props.fb_blank != FB_BLANK_UNBLANK || bl->props.fb_blank != FB_BLANK_UNBLANK ||
...@@ -117,9 +122,10 @@ static int pwm_backlight_update_status(struct backlight_device *bl) ...@@ -117,9 +122,10 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
brightness = pb->notify(pb->dev, brightness); brightness = pb->notify(pb->dev, brightness);
if (brightness > 0) { if (brightness > 0) {
duty_cycle = compute_duty_cycle(pb, brightness); pwm_get_state(pb->pwm, &state);
pwm_config(pb->pwm, duty_cycle, pb->period); state.duty_cycle = compute_duty_cycle(pb, brightness);
pwm_backlight_power_on(pb, brightness); pwm_apply_state(pb->pwm, &state);
pwm_backlight_power_on(pb);
} else } else
pwm_backlight_power_off(pb); pwm_backlight_power_off(pb);
...@@ -447,7 +453,6 @@ static int pwm_backlight_probe(struct platform_device *pdev) ...@@ -447,7 +453,6 @@ static int pwm_backlight_probe(struct platform_device *pdev)
struct device_node *node = pdev->dev.of_node; struct device_node *node = pdev->dev.of_node;
struct pwm_bl_data *pb; struct pwm_bl_data *pb;
struct pwm_state state; struct pwm_state state;
struct pwm_args pargs;
unsigned int i; unsigned int i;
int ret; int ret;
...@@ -478,7 +483,6 @@ static int pwm_backlight_probe(struct platform_device *pdev) ...@@ -478,7 +483,6 @@ static int pwm_backlight_probe(struct platform_device *pdev)
pb->check_fb = data->check_fb; pb->check_fb = data->check_fb;
pb->exit = data->exit; pb->exit = data->exit;
pb->dev = &pdev->dev; pb->dev = &pdev->dev;
pb->enabled = false;
pb->post_pwm_on_delay = data->post_pwm_on_delay; pb->post_pwm_on_delay = data->post_pwm_on_delay;
pb->pwm_off_delay = data->pwm_off_delay; pb->pwm_off_delay = data->pwm_off_delay;
...@@ -539,10 +543,26 @@ static int pwm_backlight_probe(struct platform_device *pdev) ...@@ -539,10 +543,26 @@ static int pwm_backlight_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "got pwm for backlight\n"); dev_dbg(&pdev->dev, "got pwm for backlight\n");
if (!data->levels) { /* Sync up PWM state. */
/* Get the PWM period (in nanoseconds) */ pwm_init_state(pb->pwm, &state);
pwm_get_state(pb->pwm, &state);
/*
* The DT case will set the pwm_period_ns field to 0 and store the
* period, parsed from the DT, in the PWM device. For the non-DT case,
* set the period from platform data if it has not already been set
* via the PWM lookup table.
*/
if (!state.period && (data->pwm_period_ns > 0))
state.period = data->pwm_period_ns;
ret = pwm_apply_state(pb->pwm, &state);
if (ret) {
dev_err(&pdev->dev, "failed to apply initial PWM state: %d\n",
ret);
goto err_alloc;
}
if (!data->levels) {
ret = pwm_backlight_brightness_default(&pdev->dev, data, ret = pwm_backlight_brightness_default(&pdev->dev, data,
state.period); state.period);
if (ret < 0) { if (ret < 0) {
...@@ -559,24 +579,7 @@ static int pwm_backlight_probe(struct platform_device *pdev) ...@@ -559,24 +579,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
pb->levels = data->levels; pb->levels = data->levels;
} }
/* pb->lth_brightness = data->lth_brightness * (state.period / pb->scale);
* FIXME: pwm_apply_args() should be removed when switching to
* the atomic PWM API.
*/
pwm_apply_args(pb->pwm);
/*
* The DT case will set the pwm_period_ns field to 0 and store the
* period, parsed from the DT, in the PWM device. For the non-DT case,
* set the period from platform data if it has not already been set
* via the PWM lookup table.
*/
pwm_get_args(pb->pwm, &pargs);
pb->period = pargs.period;
if (!pb->period && (data->pwm_period_ns > 0))
pb->period = data->pwm_period_ns;
pb->lth_brightness = data->lth_brightness * (pb->period / pb->scale);
memset(&props, 0, sizeof(struct backlight_properties)); memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_RAW; props.type = BACKLIGHT_RAW;
......
drivers/video/backlight/s6e63m0.c deleted 100644 → 0
View file @ 3ea172c8
/*
* 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.
*/
#include <linux/backlight.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/lcd.h>
#include <linux/module.h>
#include <linux/spi/spi.h>
#include <linux/wait.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
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 {
msleep(wbuf[i+1]);
}
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_is_on(int power)
{
return power <= FB_BLANK_NORMAL;
}
static int s6e63m0_power_on(struct s6e63m0 *lcd)
{
int ret = 0;
struct lcd_platform_data *pd;
struct backlight_device *bd;
pd = lcd->lcd_pd;
bd = lcd->bd;
if (!pd->power_on) {
dev_err(lcd->dev, "power_on is NULL.\n");
return -EINVAL;
}
pd->power_on(lcd->ld, 1);
msleep(pd->power_on_delay);
if (!pd->reset) {
dev_err(lcd->dev, "reset is NULL.\n");
return -EINVAL;
}
pd->reset(lcd->ld);
msleep(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;
struct lcd_platform_data *pd;
pd = lcd->lcd_pd;
ret = s6e63m0_ldi_disable(lcd);
if (ret) {
dev_err(lcd->dev, "lcd setting failed.\n");
return -EIO;
}
msleep(pd->power_off_delay);
pd->power_on(lcd->ld, 0);
return 0;
}
static int s6e63m0_power(struct s6e63m0 *lcd, int power)
{
int ret = 0;
if (s6e63m0_power_is_on(power) && !s6e63m0_power_is_on(lcd->power))
ret = s6e63m0_power_on(lcd);
else if (!s6e63m0_power_is_on(power) && s6e63m0_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_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 = {
.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 = kstrtouint(buf, 0, &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, "%u\n", lcd->gamma_table_count);
strcpy(buf, temp);
return strlen(buf);
}
static DEVICE_ATTR(gamma_table, 0444,
s6e63m0_sysfs_show_gamma_table, NULL);
static int s6e63m0_probe(struct spi_device *spi)
{
int ret = 0;
struct s6e63m0 *lcd = NULL;
struct lcd_device *ld = NULL;
struct backlight_device *bd = NULL;
struct backlight_properties props;
lcd = devm_kzalloc(&spi->dev, 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");
return ret;
}
lcd->spi = spi;
lcd->dev = &spi->dev;
lcd->lcd_pd = dev_get_platdata(&spi->dev);
if (!lcd->lcd_pd) {
dev_err(&spi->dev, "platform data is NULL.\n");
return -EINVAL;
}
ld = devm_lcd_device_register(&spi->dev, "s6e63m0", &spi->dev, lcd,
&s6e63m0_lcd_ops);
if (IS_ERR(ld))
return PTR_ERR(ld);
lcd->ld = ld;
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_RAW;
props.max_brightness = MAX_BRIGHTNESS;
bd = devm_backlight_device_register(&spi->dev, "s6e63m0bl-bl",
&spi->dev, lcd, &s6e63m0_backlight_ops,
&props);
if (IS_ERR(bd))
return PTR_ERR(bd);
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;
}
spi_set_drvdata(spi, lcd);
dev_info(&spi->dev, "s6e63m0 panel driver has been probed.\n");
return 0;
}
static int s6e63m0_remove(struct spi_device *spi)
{
struct s6e63m0 *lcd = spi_get_drvdata(spi);
s6e63m0_power(lcd, FB_BLANK_POWERDOWN);
device_remove_file(&spi->dev, &dev_attr_gamma_table);
device_remove_file(&spi->dev, &dev_attr_gamma_mode);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int s6e63m0_suspend(struct device *dev)
{
struct s6e63m0 *lcd = dev_get_drvdata(dev);
dev_dbg(dev, "lcd->power = %d\n", lcd->power);
/*
* when lcd panel is suspend, lcd panel becomes off
* regardless of status.
*/
return s6e63m0_power(lcd, FB_BLANK_POWERDOWN);
}
static int s6e63m0_resume(struct device *dev)
{
struct s6e63m0 *lcd = dev_get_drvdata(dev);
lcd->power = FB_BLANK_POWERDOWN;
return s6e63m0_power(lcd, FB_BLANK_UNBLANK);
}
#endif
static SIMPLE_DEV_PM_OPS(s6e63m0_pm_ops, s6e63m0_suspend, s6e63m0_resume);
/* Power down all displays on reboot, poweroff or halt. */
static void s6e63m0_shutdown(struct spi_device *spi)
{
struct s6e63m0 *lcd = spi_get_drvdata(spi);
s6e63m0_power(lcd, FB_BLANK_POWERDOWN);
}
static struct spi_driver s6e63m0_driver = {
.driver = {
.name = "s6e63m0",
.pm = &s6e63m0_pm_ops,
},
.probe = s6e63m0_probe,
.remove = s6e63m0_remove,
.shutdown = s6e63m0_shutdown,
};
module_spi_driver(s6e63m0_driver);
MODULE_AUTHOR("InKi Dae <inki.dae@samsung.com>");
MODULE_DESCRIPTION("S6E63M0 LCD Driver");
MODULE_LICENSE("GPL");
drivers/video/backlight/s6e63m0_gamma.h deleted 100644 → 0
View file @ 3ea172c8
/* 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
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