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path: root/drivers/video/backlight/s6e63m0.c
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Diffstat (limited to 'drivers/video/backlight/s6e63m0.c')
-rw-r--r--drivers/video/backlight/s6e63m0.c857
1 files changed, 0 insertions, 857 deletions
diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c
deleted file mode 100644
index 3c4a22a3063a..000000000000
--- a/drivers/video/backlight/s6e63m0.c
+++ /dev/null
@@ -1,857 +0,0 @@
-/*
- * 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");
-