@@ -0,0 +1,801 @@
+/* linux/drivers/video/s6e8ax0.c
+ *
+ * MIPI-DSI based s6e8ax0 AMOLED lcd 4.65 inch panel driver.
+ *
+ * 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.
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/mutex.h>
+#include <linux/wait.h>
+#include <linux/ctype.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/lcd.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+#include <linux/mipi_dsim.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include "s6e8ax0_gamma.h"
+
+#define LDI_MTP_LENGTH 24
+#define DSIM_PM_STABLE_TIME (10)
+#define MIN_BRIGHTNESS (0)
+#define MAX_BRIGHTNESS (24)
+
+#define POWER_IS_ON(pwr) ((pwr) = FB_BLANK_UNBLANK)
+#define POWER_IS_OFF(pwr) ((pwr) = FB_BLANK_POWERDOWN)
+#define POWER_IS_NRM(pwr) ((pwr) = FB_BLANK_NORMAL)
+
+#define lcd_to_master(a) (a->dsim_dev->master)
+#define lcd_to_master_ops(a) ((lcd_to_master(a))->master_ops)
+
+enum {
+ DSIM_NONE_STATE = 0,
+ DSIM_RESUME_COMPLETE = 1,
+ DSIM_FRAME_DONE = 2,
+};
+
+struct s6e8ax0 {
+ struct device *dev;
+ unsigned int power;
+ unsigned int id;
+ unsigned int current_brightness;
+ unsigned int updated;
+ unsigned int gamma;
+ unsigned int resume_complete;
+ unsigned int acl_enable;
+ unsigned int cur_acl;
+
+ struct lcd_device *ld;
+ struct backlight_device *bd;
+
+ struct mipi_dsim_lcd_device *dsim_dev;
+ struct lcd_platform_data *ddi_pd;
+ struct mutex lock;
+ bool enabled;
+};
+
+
+static struct regulator_bulk_data supplies[] = {
+ { .supply = "vdd3", },
+ { .supply = "vci", },
+};
+
+static void s6e8ax0_regulator_enable(struct s6e8ax0 *lcd)
+{
+ int ret = 0;
+ struct lcd_platform_data *pd = NULL;
+
+ pd = lcd->ddi_pd;
+ mutex_lock(&lcd->lock);
+ if (!lcd->enabled) {
+ ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies);
+ if (ret)
+ goto out;
+
+ lcd->enabled = true;
+ }
+ mdelay(pd->power_on_delay);
+out:
+ mutex_unlock(&lcd->lock);
+}
+
+static void s6e8ax0_regulator_disable(struct s6e8ax0 *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 void s6e8ax0_panel_cond(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+
+ unsigned char data_to_send[] = {
+ 0xf8, 0x3d, 0x35, 0x00, 0x00, 0x00, 0x93, 0x00, 0x3c,
+ 0x7d, 0x08, 0x27, 0x7d, 0x3f, 0x00, 0x00, 0x00, 0x20,
+ 0x04, 0x08, 0x6e, 0x00, 0x00, 0x00, 0x02, 0x08, 0x08,
+ 0x23, 0x23, 0xc0, 0xc8, 0x08, 0x48, 0xc1, 0x00, 0xc1,
+ 0xff, 0xff, 0xc8
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_display_cond(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xf2, 0x80, 0x03, 0x0d
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+/* Gamma 2.2 Setting (200cd, 7500K, 10MPCD) */
+static void s6e8ax0_gamma_cond(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned int gamma = lcd->bd->props.brightness;
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ s6e8ax0_22_gamma_table[gamma], GAMMA_TABLE_COUNT);
+}
+
+static void s6e8ax0_gamma_update(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xf7, 0x03
+ };
+
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_SHORT_WRITE_PARAM, data_to_send,
+ ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_etc_cond1(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xd1, 0xfe, 0x80, 0x00, 0x01, 0x0b, 0x00, 0x00, 0x40,
+ 0x0d, 0x00, 0x00
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_etc_cond2(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xb6, 0x0c, 0x02, 0x03, 0x32, 0xff, 0x44, 0x44, 0xc0,
+ 0x00
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_etc_cond3(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xe1, 0x10, 0x1c, 0x17, 0x08, 0x1d
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_etc_cond4(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xe2, 0xed, 0x07, 0xc3, 0x13, 0x0d, 0x03
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_etc_cond5(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xf4, 0xcf, 0x0a, 0x12, 0x10, 0x19, 0x33, 0x02
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+static void s6e8ax0_etc_cond6(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xe3, 0x40
+ };
+
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_SHORT_WRITE_PARAM,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_etc_cond7(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xe4, 0x00, 0x00, 0x14, 0x80, 0x00, 0x00, 0x00
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_power_ctrl(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xf4, 0x0b, 0x0a, 0x06, 0x0b, 0x33, 0x02
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_source_ctrl(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xf6, 0x04, 0x02
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_elvss_set(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xb1, 0x04, 0x00
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_elvss_nvm_set(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xd9, 0x5c, 0x20, 0x0c, 0x0f, 0x41, 0x00, 0x10, 0x11,
+ 0x12, 0xd1, 0x00, 0x00, 0x00, 0x00, 0x80, 0xcb, 0xed,
+ 0x64, 0xaf
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_dynamic_elvss_ctrl1(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xb1, 0x04, 0x90
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_dynamic_elvss_ctrl2(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xb1, 0x04, 0x99
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_dynamic_elvss_ctrl3(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xb1, 0x04, 0x9d
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_dynamic_elvss_ctrl4(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xb1, 0x04, 0x9f
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_sleep_in(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0x10, 0x00
+ };
+
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_SHORT_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_sleep_out(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0x11, 0x00
+ };
+
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_SHORT_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_display_on(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0x29, 0x00
+ };
+
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_SHORT_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_display_off(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0x28, 0x00
+ };
+
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_SHORT_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_apply_level2_key(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xf0, 0x5a, 0x5a
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_auto_power_on(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xfc, 0x5a, 0x5a
+ };
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_acl_on(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xc0, 0x01
+ };
+
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_SHORT_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+static void s6e8ax0_acl_off(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ unsigned char data_to_send[] = {
+ 0xc0, 0x00
+ };
+
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_SHORT_WRITE,
+ data_to_send, ARRAY_SIZE(data_to_send));
+}
+
+/* Full white 50% reducing setting */
+static void s6e8ax0_acl_ctrl_set(struct s6e8ax0 *lcd)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ /* Full white 50% reducing setting */
+ unsigned char cutoff_50[] = {
+ 0xc1, 0x47, 0x53, 0x13, 0x53, 0x00, 0x00, 0x02, 0xcf,
+ 0x00, 0x00, 0x04, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0x08, 0x0f, 0x16, 0x1d, 0x24, 0x2a, 0x31, 0x38,
+ 0x3f, 0x46
+ };
+ /* Full white 45% reducing setting */
+ unsigned char cutoff_45[] = {
+ 0xc1, 0x47, 0x53, 0x13, 0x53, 0x00, 0x00, 0x02, 0xcf,
+ 0x00, 0x00, 0x04, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0x07, 0x0d, 0x13, 0x19, 0x1f, 0x25, 0x2b, 0x31,
+ 0x37, 0x3d
+ };
+ /* Full white 40% reducing setting */
+ unsigned char cutoff_40[] = {
+ 0xc1, 0x47, 0x53, 0x13, 0x53, 0x00, 0x00, 0x02, 0xcf,
+ 0x00, 0x00, 0x04, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0x06, 0x0c, 0x11, 0x16, 0x1c, 0x21, 0x26, 0x2b,
+ 0x31, 0x36
+ };
+
+ if (lcd->acl_enable) {
+ if (lcd->cur_acl = 0) {
+ if (lcd->gamma = 0 || lcd->gamma = 1) {
+ s6e8ax0_acl_off(lcd);
+ dev_dbg(&lcd->ld->dev,
+ "cur_acl=%d\n", lcd->cur_acl);
+ } else
+ s6e8ax0_acl_on(lcd);
+ }
+ switch (lcd->gamma) {
+ case 0: /* 30cd */
+ s6e8ax0_acl_off(lcd);
+ lcd->cur_acl = 0;
+ break;
+ case 1 ... 3: /* 50cd ~ 90cd */
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_LONG_WRITE,
+ cutoff_40,
+ ARRAY_SIZE(cutoff_40));
+ lcd->cur_acl = 40;
+ break;
+ case 4 ... 7: /* 120cd ~ 210cd */
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_LONG_WRITE,
+ cutoff_45,
+ ARRAY_SIZE(cutoff_45));
+ lcd->cur_acl = 45;
+ break;
+ case 8 ... 10: /* 220cd ~ 300cd */
+ ops->cmd_write(lcd_to_master(lcd),
+ MIPI_DSI_DCS_LONG_WRITE,
+ cutoff_50,
+ ARRAY_SIZE(cutoff_50));
+ lcd->cur_acl = 50;
+ break;
+ default:
+ break;
+ }
+ } else {
+ s6e8ax0_acl_off(lcd);
+ lcd->cur_acl = 0;
+ dev_dbg(&lcd->ld->dev, "cur_acl = %d\n", lcd->cur_acl);
+ }
+}
+
+static void s6e8ax0_read_id(struct s6e8ax0 *lcd, u8 *mtp_id)
+{
+ unsigned int ret;
+ unsigned int addr = 0xd1; /* MTP ID */
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+
+ ret = ops->cmd_read(lcd_to_master(lcd),
+ MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM,
+ addr, 3, mtp_id);
+}
+
+static int s6e8ax0_panel_init(struct s6e8ax0 *lcd)
+{
+ s6e8ax0_apply_level2_key(lcd);
+ s6e8ax0_sleep_out(lcd);
+ mdelay(1);
+ s6e8ax0_panel_cond(lcd);
+ s6e8ax0_display_cond(lcd);
+ s6e8ax0_gamma_cond(lcd);
+ s6e8ax0_gamma_update(lcd);
+
+ s6e8ax0_etc_cond1(lcd);
+ s6e8ax0_etc_cond2(lcd);
+ s6e8ax0_etc_cond3(lcd);
+ s6e8ax0_etc_cond4(lcd);
+ s6e8ax0_etc_cond5(lcd);
+ s6e8ax0_etc_cond6(lcd);
+ s6e8ax0_etc_cond7(lcd);
+
+ s6e8ax0_elvss_nvm_set(lcd);
+ s6e8ax0_elvss_set(lcd);
+
+ s6e8ax0_acl_ctrl_set(lcd);
+ s6e8ax0_acl_on(lcd);
+
+ /* if ID3 value is not 33h, branch private elvss mode */
+ mdelay(lcd->ddi_pd->power_on_delay);
+
+ return 0;
+}
+
+static int s6e8ax0_update_gamma_ctrl(struct s6e8ax0 *lcd, int brightness)
+{
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+
+ ops->cmd_write(lcd_to_master(lcd), MIPI_DSI_DCS_LONG_WRITE,
+ s6e8ax0_22_gamma_table[brightness],
+ GAMMA_TABLE_COUNT);
+
+ /* update gamma table. */
+ s6e8ax0_gamma_update(lcd);
+ lcd->gamma = brightness;
+
+ return 0;
+}
+
+static int s6e8ax0_gamma_ctrl(struct s6e8ax0 *lcd, int gamma)
+{
+ s6e8ax0_update_gamma_ctrl(lcd, gamma);
+
+ return 0;
+}
+
+static int s6e8ax0_set_power(struct lcd_device *ld, int power)
+{
+ struct s6e8ax0 *lcd = lcd_get_data(ld);
+ struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+ int ret = 0;
+
+ 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;
+ }
+
+ if ((power = FB_BLANK_UNBLANK) && ops->set_blank_mode) {
+ /* LCD power on */
+ if ((POWER_IS_ON(power) && POWER_IS_OFF(lcd->power))
+ || (POWER_IS_ON(power) && POWER_IS_NRM(lcd->power))) {
+ ret = ops->set_blank_mode(lcd_to_master(lcd), power);
+ if (!ret && lcd->power != power)
+ lcd->power = power;
+ }
+ } else if ((power = FB_BLANK_POWERDOWN) && ops->set_early_blank_mode) {
+ /* LCD power off */
+ if ((POWER_IS_OFF(power) && POWER_IS_ON(lcd->power)) ||
+ (POWER_IS_ON(lcd->power) && POWER_IS_NRM(power))) {
+ ret = ops->set_early_blank_mode(lcd_to_master(lcd),
+ power);
+ if (!ret && lcd->power != power)
+ lcd->power = power;
+ }
+ }
+
+ return ret;
+}
+
+static int s6e8ax0_get_power(struct lcd_device *ld)
+{
+ struct s6e8ax0 *lcd = lcd_get_data(ld);
+
+ return lcd->power;
+}
+
+static int s6e8ax0_get_brightness(struct backlight_device *bd)
+{
+ return bd->props.brightness;
+}
+
+static int s6e8ax0_set_brightness(struct backlight_device *bd)
+{
+ int ret = 0, brightness = bd->props.brightness;
+ struct s6e8ax0 *lcd = bl_get_data(bd);
+
+ if (brightness < MIN_BRIGHTNESS ||
+ brightness > bd->props.max_brightness) {
+ dev_err(lcd->dev, "lcd brightness should be %d to %d.\n",
+ MIN_BRIGHTNESS, MAX_BRIGHTNESS);
+ return -EINVAL;
+ }
+
+ ret = s6e8ax0_gamma_ctrl(lcd, brightness);
+ if (ret) {
+ dev_err(&bd->dev, "lcd brightness setting failed.\n");
+ return -EIO;
+ }
+
+ return ret;
+}
+
+static struct lcd_ops s6e8ax0_lcd_ops = {
+ .set_power = s6e8ax0_set_power,
+ .get_power = s6e8ax0_get_power,
+};
+
+static struct backlight_ops s6e8ax0_backlight_ops = {
+ .get_brightness = s6e8ax0_get_brightness,
+ .update_status = s6e8ax0_set_brightness,
+};
+
+static void s6e8ax0_power_on(struct mipi_dsim_lcd_device *dsim_dev, int power)
+{
+ struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
+
+ mdelay(lcd->ddi_pd->power_on_delay);
+
+ /* lcd power on */
+ if (power)
+ s6e8ax0_regulator_enable(lcd);
+ else
+ s6e8ax0_regulator_disable(lcd);
+
+ mdelay(lcd->ddi_pd->reset_delay);
+
+ /* lcd reset */
+ if (lcd->ddi_pd->reset)
+ lcd->ddi_pd->reset(lcd->ld);
+ mdelay(5);
+}
+
+static void s6e8ax0_set_sequence(struct mipi_dsim_lcd_device *dsim_dev)
+{
+ struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
+
+ s6e8ax0_panel_init(lcd);
+ s6e8ax0_display_on(lcd);
+
+ lcd->power = FB_BLANK_UNBLANK;
+}
+
+static int s6e8ax0_probe(struct mipi_dsim_lcd_device *dsim_dev)
+{
+ struct s6e8ax0 *lcd;
+ int ret;
+ u8 mtp_id[3] = {0, };
+
+ lcd = kzalloc(sizeof(struct s6e8ax0), GFP_KERNEL);
+ if (!lcd) {
+ dev_err(&dsim_dev->dev, "failed to allocate s6e8ax0 structure.\n");
+ return -ENOMEM;
+ }
+
+ lcd->dsim_dev = dsim_dev;
+ lcd->ddi_pd = (struct lcd_platform_data *)dsim_dev->platform_data;
+ lcd->dev = &dsim_dev->dev;
+
+ mutex_init(&lcd->lock);
+
+ ret = regulator_bulk_get(lcd->dev, ARRAY_SIZE(supplies), supplies);
+ if (ret) {
+ dev_err(lcd->dev, "Failed to get regulators: %d\n", ret);
+ goto err_lcd_register;
+ }
+
+ lcd->ld = lcd_device_register("s6e8ax0", lcd->dev, lcd,
+ &s6e8ax0_lcd_ops);
+ if (IS_ERR(lcd->ld)) {
+ dev_err(lcd->dev, "failed to register lcd ops.\n");
+ ret = PTR_ERR(lcd->ld);
+ goto err_lcd_register;
+ }
+
+ lcd->bd = backlight_device_register("s6e8ax0-bl", lcd->dev, lcd,
+ &s6e8ax0_backlight_ops, NULL);
+ if (IS_ERR(lcd->bd)) {
+ dev_err(lcd->dev, "failed to register backlight ops.\n");
+ ret = PTR_ERR(lcd->bd);
+ goto err_backlight_register;
+ }
+
+ lcd->bd->props.max_brightness = MAX_BRIGHTNESS;
+ lcd->bd->props.brightness = MAX_BRIGHTNESS;
+
+ s6e8ax0_read_id(lcd, mtp_id);
+ if (mtp_id[0] = 0x00)
+ dev_err(lcd->dev, "read id failed\n");
+
+ dev_info(lcd->dev, "Read ID : %x, %x, %x\n",
+ mtp_id[0], mtp_id[1], mtp_id[2]);
+
+ if (mtp_id[2] = 0x33)
+ dev_info(lcd->dev,
+ "ID-3 is 0xff does not support dynamic elvss\n");
+ else
+ dev_info(lcd->dev,
+ "ID-3 is 0x%x support dynamic elvss\n", mtp_id[2]);
+
+ lcd->acl_enable = 1;
+ lcd->cur_acl = 0;
+
+ dev_set_drvdata(&dsim_dev->dev, lcd);
+
+ dev_dbg(lcd->dev, "probed s6e8ax0 panel driver.\n");
+
+ return 0;
+
+err_backlight_register:
+ lcd_device_unregister(lcd->ld);
+
+err_lcd_register:
+ regulator_bulk_free(ARRAY_SIZE(supplies), supplies);
+ kfree(lcd);
+
+ return ret;
+}
+
+#ifdef CONFIG_PM
+static int s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
+{
+ struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
+
+ s6e8ax0_sleep_in(lcd);
+ mdelay(lcd->ddi_pd->power_off_delay);
+ s6e8ax0_display_off(lcd);
+
+ s6e8ax0_regulator_disable(lcd);
+
+ return 0;
+}
+
+static int s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
+{
+ struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
+
+ s6e8ax0_sleep_out(lcd);
+ mdelay(lcd->ddi_pd->power_on_delay);
+
+ s6e8ax0_regulator_enable(lcd);
+ s6e8ax0_set_sequence(dsim_dev);
+
+ return 0;
+}
+#else
+#define s6e8ax0_suspend NULL
+#define s6e8ax0_resume NULL
+#endif
+
+static struct mipi_dsim_lcd_driver s6e8ax0_dsim_ddi_driver = {
+ .name = "s6e8ax0",
+ .id = -1,
+
+ .power_on = s6e8ax0_power_on,
+ .set_sequence = s6e8ax0_set_sequence,
+ .probe = s6e8ax0_probe,
+ .suspend = s6e8ax0_suspend,
+ .resume = s6e8ax0_resume,
+};
+
+static int s6e8ax0_init(void)
+{
+ s5p_mipi_dsi_register_lcd_driver(&s6e8ax0_dsim_ddi_driver);
+
+ return 0;
+}
+
+static void s6e8ax0_exit(void)
+{
+ return;
+}
+
+module_init(s6e8ax0_init);
+module_exit(s6e8ax0_exit);
+
+MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
+MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("MIPI-DSI based s6e8ax0 AMOLED LCD Panel Driver");
+MODULE_LICENSE("GPL");@@ -0,0 +1,217 @@
+/* linux/drivers/video/backlight/s6e8ax0_brightness.h
+ *
+ * Brightness level definition.
+ *
+ * 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 _S6E8AX0_BRIGHTNESS_H
+#define _S6E8AX0_BRIGHTNESS_H
+
+#define MAX_GAMMA_LEVEL 25
+#define GAMMA_TABLE_COUNT 26
+
+static unsigned char s6e8ax0_22_gamma_30[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xF5, 0x00, 0xFF, 0xAD, 0xAF,
+ 0xBA, 0xC3, 0xD8, 0xC5, 0x9F, 0xC6, 0x9E, 0xC1, 0xDC, 0xC0,
+ 0x00, 0x61, 0x00, 0x5A, 0x00, 0x74,
+};
+
+static unsigned char s6e8ax0_22_gamma_40[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xF5, 0x0F, 0xFF, 0xAF, 0xBE,
+ 0xBA, 0xC4, 0xDB, 0xC5, 0x9F, 0xC7, 0x9E, 0xBD, 0xD8, 0xBB,
+ 0x00, 0x69, 0x00, 0x62, 0x00, 0x7E,
+};
+
+static unsigned char s6e8ax0_22_gamma_50[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xE8, 0x1F, 0xF7, 0xAD, 0xC0,
+ 0xB5, 0xC4, 0xDC, 0xC4, 0x9E, 0xC6, 0x9C, 0xBB, 0xD8, 0xBB,
+ 0x00, 0x70, 0x00, 0x68, 0x00, 0x86,
+};
+
+static unsigned char s6e8ax0_22_gamma_60[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xDE, 0x1F, 0xEF, 0xAD, 0xC4,
+ 0xB3, 0xC3, 0xDD, 0xC4, 0x9E, 0xC6, 0x9C, 0xBC, 0xD6, 0xBA,
+ 0x00, 0x75, 0x00, 0x6E, 0x00, 0x8D,
+};
+
+static unsigned char s6e8ax0_22_gamma_70[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xD8, 0x1F, 0xE7, 0xAF, 0xC8,
+ 0xB4, 0xC4, 0xDD, 0xC3, 0x9D, 0xC6, 0x9C, 0xBB, 0xD6, 0xB9,
+ 0x00, 0x7A, 0x00, 0x72, 0x00, 0x93,
+};
+
+static unsigned char s6e8ax0_22_gamma_80[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xC9, 0x1F, 0xDE, 0xAE, 0xC9,
+ 0xB1, 0xC3, 0xDD, 0xC2, 0x9D, 0xC5, 0x9B, 0xBC, 0xD6, 0xBB,
+ 0x00, 0x7F, 0x00, 0x77, 0x00, 0x99,
+};
+
+static unsigned char s6e8ax0_22_gamma_90[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xC7, 0x1F, 0xD9, 0xB0, 0xCC,
+ 0xB2, 0xC3, 0xDC, 0xC1, 0x9C, 0xC6, 0x9C, 0xBC, 0xD4, 0xB9,
+ 0x00, 0x83, 0x00, 0x7B, 0x00, 0x9E,
+};
+
+static unsigned char s6e8ax0_22_gamma_100[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xBD, 0x80, 0xCD, 0xB1, 0xCE,
+ 0xB3, 0xC4, 0xDE, 0xC3, 0x9C, 0xC4, 0x9A, 0xB8, 0xD3, 0xB6,
+ 0x00, 0x88, 0x00, 0x80, 0x00, 0xA5,
+};
+
+static unsigned char s6e8ax0_22_gamma_110[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xBD, 0x95, 0xCD, 0xB1, 0xCE,
+ 0xB2, 0xC5, 0xDE, 0xC4, 0x9C, 0xC5, 0x9B, 0xB6, 0xD1, 0xB4,
+ 0x00, 0x8B, 0x00, 0x83, 0x00, 0xA8,
+};
+
+static unsigned char s6e8ax0_22_gamma_120[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB9, 0x95, 0xC8, 0xB1, 0xCF,
+ 0xB2, 0xC6, 0xDF, 0xC5, 0x9B, 0xC3, 0x99, 0xB6, 0xD2, 0xB6,
+ 0x00, 0x8F, 0x00, 0x86, 0x00, 0xAC,
+};
+
+static unsigned char s6e8ax0_22_gamma_130[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB7, 0xA0, 0xC7, 0xB1, 0xD0,
+ 0xB2, 0xC4, 0xDD, 0xC3, 0x9A, 0xC3, 0x98, 0xB6, 0xD0, 0xB4,
+ 0x00, 0x92, 0x00, 0x8A, 0x00, 0xB1,
+};
+
+static unsigned char s6e8ax0_22_gamma_140[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB7, 0xA0, 0xC5, 0xB2, 0xD0,
+ 0xB3, 0xC3, 0xDE, 0xC3, 0x9B, 0xC2, 0x98, 0xB6, 0xD0, 0xB4,
+ 0x00, 0x95, 0x00, 0x8D, 0x00, 0xB5,
+};
+
+static unsigned char s6e8ax0_22_gamma_150[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB3, 0xA0, 0xC2, 0xB2, 0xD0,
+ 0xB2, 0xC1, 0xDD, 0xC2, 0x9B, 0xC2, 0x98, 0xB4, 0xCF, 0xB1,
+ 0x00, 0x99, 0x00, 0x90, 0x00, 0xBA,
+};
+
+static unsigned char s6e8ax0_22_gamma_160[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xAF, 0xA5, 0xBF, 0xB0, 0xD0,
+ 0xB1, 0xC3, 0xDE, 0xC2, 0x99, 0xC1, 0x97, 0xB4, 0xCE, 0xB1,
+ 0x00, 0x9C, 0x00, 0x93, 0x00, 0xBE,
+};
+
+static unsigned char s6e8ax0_22_gamma_170[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xAF, 0xB5, 0xBF, 0xB1, 0xD1,
+ 0xB1, 0xC3, 0xDE, 0xC3, 0x99, 0xC0, 0x96, 0xB4, 0xCE, 0xB1,
+ 0x00, 0x9F, 0x00, 0x96, 0x00, 0xC2,
+};
+
+static unsigned char s6e8ax0_22_gamma_180[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xAF, 0xB7, 0xBE, 0xB3, 0xD2,
+ 0xB3, 0xC3, 0xDE, 0xC2, 0x97, 0xBF, 0x95, 0xB4, 0xCD, 0xB1,
+ 0x00, 0xA2, 0x00, 0x99, 0x00, 0xC5,
+};
+
+static unsigned char s6e8ax0_22_gamma_190[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xAF, 0xB9, 0xBE, 0xB2, 0xD2,
+ 0xB2, 0xC3, 0xDD, 0xC3, 0x98, 0xBF, 0x95, 0xB2, 0xCC, 0xAF,
+ 0x00, 0xA5, 0x00, 0x9C, 0x00, 0xC9,
+};
+
+static unsigned char s6e8ax0_22_gamma_200[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xAF, 0xB9, 0xBC, 0xB2, 0xD2,
+ 0xB1, 0xC4, 0xDD, 0xC3, 0x97, 0xBE, 0x95, 0xB1, 0xCB, 0xAE,
+ 0x00, 0xA8, 0x00, 0x9F, 0x00, 0xCD,
+};
+
+static unsigned char s6e8ax0_22_gamma_210[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB1, 0xC1, 0xBD, 0xB1, 0xD1,
+ 0xB1, 0xC2, 0xDE, 0xC2, 0x97, 0xBE, 0x94, 0xB0, 0xC9, 0xAD,
+ 0x00, 0xAE, 0x00, 0xA4, 0x00, 0xD4,
+};
+
+static unsigned char s6e8ax0_22_gamma_220[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB1, 0xC7, 0xBD, 0xB1, 0xD1,
+ 0xB1, 0xC2, 0xDD, 0xC2, 0x97, 0xBD, 0x94, 0xB0, 0xC9, 0xAD,
+ 0x00, 0xAD, 0x00, 0xA2, 0x00, 0xD3,
+};
+
+static unsigned char s6e8ax0_22_gamma_230[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB1, 0xC3, 0xBD, 0xB2, 0xD1,
+ 0xB1, 0xC3, 0xDD, 0xC1, 0x96, 0xBD, 0x94, 0xB0, 0xC9, 0xAD,
+ 0x00, 0xB0, 0x00, 0xA7, 0x00, 0xD7,
+};
+
+static unsigned char s6e8ax0_22_gamma_240[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB1, 0xCB, 0xBD, 0xB1, 0xD2,
+ 0xB1, 0xC3, 0xDD, 0xC2, 0x95, 0xBD, 0x93, 0xAF, 0xC8, 0xAB,
+ 0x00, 0xB3, 0x00, 0xA9, 0x00, 0xDB,
+};
+
+static unsigned char s6e8ax0_22_gamma_250[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB3, 0xCC, 0xBE, 0xB0, 0xD2,
+ 0xB0, 0xC3, 0xDD, 0xC2, 0x94, 0xBC, 0x92, 0xAE, 0xC8, 0xAB,
+ 0x00, 0xB6, 0x00, 0xAB, 0x00, 0xDE,
+};
+
+static unsigned char s6e8ax0_22_gamma_260[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB3, 0xD0, 0xBE, 0xAF, 0xD1,
+ 0xAF, 0xC2, 0xDD, 0xC1, 0x96, 0xBC, 0x93, 0xAF, 0xC8, 0xAC,
+ 0x00, 0xB7, 0x00, 0xAD, 0x00, 0xE0,
+};
+
+static unsigned char s6e8ax0_22_gamma_270[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB2, 0xCF, 0xBD, 0xB0, 0xD2,
+ 0xAF, 0xC2, 0xDC, 0xC1, 0x95, 0xBD, 0x93, 0xAE, 0xC6, 0xAA,
+ 0x00, 0xBA, 0x00, 0xB0, 0x00, 0xE4,
+};
+
+static unsigned char s6e8ax0_22_gamma_280[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB2, 0xD0, 0xBD, 0xAF, 0xD0,
+ 0xAD, 0xC4, 0xDD, 0xC3, 0x95, 0xBD, 0x93, 0xAC, 0xC5, 0xA9,
+ 0x00, 0xBD, 0x00, 0xB2, 0x00, 0xE7,
+};
+
+static unsigned char s6e8ax0_22_gamma_290[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB2, 0xD1, 0xBD, 0xB0, 0xD2,
+ 0xAF, 0xC2, 0xDC, 0xC1, 0x94, 0xBB, 0x91, 0xAC, 0xC5, 0xA9,
+ 0x00, 0xC0, 0x00, 0xB5, 0x00, 0xEB,
+};
+
+static unsigned char s6e8ax0_22_gamma_300[] = {
+ 0xFA, 0x01, 0x60, 0x10, 0x60, 0xB5, 0xD3, 0xBD, 0xB1, 0xD2,
+ 0xB0, 0xC0, 0xDC, 0xC0, 0x94, 0xBA, 0x91, 0xAC, 0xC5, 0xA9,
+ 0x00, 0xC2, 0x00, 0xB7, 0x00, 0xED,
+};
+
+static unsigned char *s6e8ax0_22_gamma_table[MAX_GAMMA_LEVEL] = {
+ s6e8ax0_22_gamma_30,
+ s6e8ax0_22_gamma_50,
+ s6e8ax0_22_gamma_60,
+ s6e8ax0_22_gamma_70,
+ s6e8ax0_22_gamma_80,
+ s6e8ax0_22_gamma_90,
+ s6e8ax0_22_gamma_100,
+ s6e8ax0_22_gamma_120,
+ s6e8ax0_22_gamma_130,
+ s6e8ax0_22_gamma_140,
+ s6e8ax0_22_gamma_150,
+ s6e8ax0_22_gamma_160,
+ s6e8ax0_22_gamma_170,
+ s6e8ax0_22_gamma_180,
+ s6e8ax0_22_gamma_190,
+ s6e8ax0_22_gamma_200,
+ s6e8ax0_22_gamma_210,
+ s6e8ax0_22_gamma_220,
+ s6e8ax0_22_gamma_230,
+ s6e8ax0_22_gamma_240,
+ s6e8ax0_22_gamma_250,
+ s6e8ax0_22_gamma_260,
+ s6e8ax0_22_gamma_270,
+ s6e8ax0_22_gamma_280,
+ s6e8ax0_22_gamma_300,
+};
+
+#endif