video: backlight: support MIPI DSI based s6e8ax0 amoled panel driver

This patch is amoled panel driver based MIPI DSI interface. S6E8AX0 means it may includes many other ldi controllers, for example, S6E8AA0, S6E8AB0, and so on.
It can be modified depending on each panel properites.

This patch is based on Samsung Soc MIPI DSI Driver.
Please refer to the "[PATCH v3] video: support MIPI-DSI controller driver".

http://marc.info/?l=linux-fbdev&m=132435297125837&w=2

drivers/video/backlight/Kconfig +4 -0

+	default n
+	help
+	  If you have an S6E8AX0 MIPI AMOLED LCD Panel, say Y to enable its
+	  LCD control driver.
 endif # LCD_CLASS_DEVICE
 
 #

drivers/video/backlight/Makefile +1 -0

index fdd1fc4..6adba58 100644
@@ -14,6 +14,7 @@ obj-$(CONFIG_LCD_TOSA)		   += tosa_lcd.o
 obj-$(CONFIG_LCD_S6E63M0)	+= s6e63m0.o
 obj-$(CONFIG_LCD_LD9040)	+= ld9040.o
 obj-$(CONFIG_LCD_AMS369FG06)	+= ams369fg06.o
+obj-$(CONFIG_LCD_S6E8AX0)	+= s6e8ax0.o
 
 obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
 obj-$(CONFIG_BACKLIGHT_ATMEL_PWM)    += atmel-pwm-bl.o

drivers/video/backlight/s6e8ax0.c new file +33 -0

new file mode 100644
index 0000000..2fb303e
@@ -0,0 +1,801 @@
+/* linux/drivers/video/s6e8ax0.c
+ *
+ * MIPI-DSI based s6e8ax0 AMOLED lcd 4.65 inch panel driver.
+ *
+ * Inki Dae, <[email protected]>
+ * Donghwa Lee, <[email protected]>
+ *
+ * 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

drivers/video/backlight/s6e8ax0.c new file +5 -0

+static void s6e8ax0_panel_cond(struct s6e8ax0 *lcd)
+{
+	struct mipi_dsim_master_ops *ops = lcd_to_master_ops(lcd);
+
+	unsigned char data_to_send[] = {

drivers/video/backlight/s6e8ax0.c new file +10 -0

+	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;
+

...

drivers/video/backlight/s6e8ax0.c new file +9 -0

+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);

drivers/video/backlight/s6e8ax0_gamma.h new file +15 -0

@@ -0,0 +1,217 @@
+/* linux/drivers/video/backlight/s6e8ax0_brightness.h
+ *
+ * Brightness level definition.
+ *
+ * Copyright (c) 2011 Samsung Electronics
+ *
+ * Inki Dae, <[email protected]>
+ * Donghwa Lee <[email protected]>
+ *
+ * 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

...