exynos: mipi : add platform data for tc358764 driver for smdk 5250

adds platform data to tc358764 driver to get tc358764 panel working on
smdk 5250
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>

5 files changed, 386 insertions, 5 deletions

diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index bc35d622660..e4833689355 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -27,6 +27,12 @@
 		bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC2,115200 init=/linuxrc";
 	};
 
+	mipi {                                                                  
+		compatible = "samsung,exynos5-mipi";                             
+		reg = <0x14500000 0x10000>;                                     
+		interrupts = <0 82 0>; 
+	};
+
 	i2c@12C60000 {
 		samsung,i2c-sda-delay = <100>;
 		samsung,i2c-max-bus-freq = <20000>;
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index cad40aa50f4..17eda14c90b 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -9,6 +9,10 @@
  * published by the Free Software Foundation.
 */
 
+#define EXYNOS_MIPI_DRIVER
+#define TC358764_DRIVER  1
+#define SE68ax0_DRIVER   !TC358764_DRIVER
+
 #include <linux/of_platform.h>
 #include <linux/of_fdt.h>
 #include <linux/serial_core.h>
@@ -23,6 +27,11 @@
 #include <mach/map.h>
 #include <mach/regs-pmu.h>
 
+#ifdef EXYNOS_MIPI_DRIVER
+#include <video/exynos_mipi_dsim.h>
+#else
+#include <plat/dsim.h>
+#endif
 #include <plat/cpu.h>
 #include <plat/regs-serial.h>
 #include <plat/mfc.h>
@@ -30,8 +39,303 @@
 #include <plat/gpio-cfg.h>
 #include <plat/fb.h>
 
+#ifdef EXYNOS_MIPI_DRIVER
+#include <linux/lcd.h>
+#else
+ #include <video/platform_lcd.h>
+#endif
+
 #include "common.h"
 
+static struct mipi_dsim_config dsim_info = {
+	.e_interface		= DSIM_VIDEO,
+	.e_pixel_format		= DSIM_24BPP_888,
+	/* main frame fifo auto flush at VSYNC pulse */
+	.auto_flush		= false,
+	.eot_disable		= false,
+	.auto_vertical_cnt	= false,
+	.hse			= false,
+	.hfp			= false,
+	.hbp			= false,
+	.hsa			= false,
+
+	.e_no_data_lane		= DSIM_DATA_LANE_4,
+	.e_byte_clk		= DSIM_PLL_OUT_DIV8,
+	.e_burst_mode		= DSIM_BURST,
+
+	.p			= 3,
+	.m			= 115,
+	.s			= 1,
+
+	/* D-PHY PLL stable time spec :min = 200usec ~ max 400usec */
+	.pll_stable_time	= 500,
+
+	.esc_clk		= 0.4 * 1000000, /* escape clk : 10MHz */
+
+	/* stop state holding counter after bta change count 0 ~ 0xfff */
+	.stop_holding_cnt	= 0x0f,
+	.bta_timeout		= 0xff,		/* bta timeout 0 ~ 0xff */
+	.rx_timeout		= 0xffff,	/* lp rx timeout 0 ~ 0xffff */
+#ifdef EXYNOS_MIPI_DRIVER
+        .e_virtual_ch           = DSIM_VIRTUAL_CH_0, /* :SAB */
+        .cmd_allow              = 0xf,  /* :SAB */
+#else
+ 	.dsim_ddi_pd = &tc358764_mipi_lcd_driver,
+#endif
+};
+
+#if TC358764_DRIVER
+static struct fb_videomode tc358764_lcd_panel_info = {
+        .left_margin    = 0x4,
+        .right_margin   = 0x4,
+        .upper_margin   = 0x4,
+        .lower_margin   = 0x4,
+        .hsync_len      = 0x4,
+        .vsync_len      = 0x4,
+        .xres           = 1280,
+        .yres           = 800,
+};
+#else
+static struct fb_videomode se68ax0_lcd_panel_info = {
+        .left_margin    = 0x4,
+        .right_margin   = 0x4,
+        .upper_margin   = 0x4,
+        .lower_margin   = 0x4,
+        .hsync_len      = 0x4,
+        .vsync_len      = 0x4,
+        .xres           = 1280,
+        .yres           = 800,
+};
+#endif
+
+static int s5p_dsim_enable_d_phy(struct platform_device *pdev, bool enable)
+{
+        unsigned int reg;
+#if defined(CONFIG_ARCH_EXYNOS5)
+	pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+        reg = readl(S5P_MIPI_DPHY_CONTROL(1)) & ~(1 << 0);
+        reg |= (enable << 0);
+        writel(reg, S5P_MIPI_DPHY_CONTROL(1));
+#else
+	pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+        reg = readl(S5P_MIPI_DPHY_CONTROL(0)) & ~(1 << 0);
+        reg |= (enable << 0);
+        writel(reg, S5P_MIPI_DPHY_CONTROL(0));
+#endif
+	pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+        return 0;
+}
+
+static int s5p_dsim_enable_dsi_master(struct platform_device *pdev, bool enable)
+{
+        unsigned int reg;
+#if defined(CONFIG_ARCH_EXYNOS5)
+        reg = readl(S5P_MIPI_DPHY_CONTROL(1)) & ~(1 << 2);
+	pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+        reg |= (enable << 2);
+        writel(reg, S5P_MIPI_DPHY_CONTROL(1));
+#else
+	pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+        reg = readl(S5P_MIPI_DPHY_CONTROL(0)) & ~(1 << 2);
+        reg |= (enable << 2);
+        writel(reg, S5P_MIPI_DPHY_CONTROL(0));
+#endif
+        return 0;
+}
+
+int s5p_dsim_init_d_phy(struct platform_device *pdev, bool enable)
+{
+        /**
+         * DPHY and aster block must be enabled at the system initialization
+         * step before data access from/to DPHY begins.
+         */
+	pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+        s5p_dsim_enable_d_phy(pdev, enable);
+        s5p_dsim_enable_dsi_master(pdev, enable);
+
+        return 0;
+}
+
+#ifdef EXYNOS_MIPI_DRIVER
+static int __lcd_set_power(struct lcd_device *ld, int power)
+#else
+static void __lcd_set_power(struct plat_lcd_data *pd,
+ 			unsigned int power)
+#endif
+{
+	static int bPowerOn;
+
+	pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+
+	if (power == bPowerOn)
+		return 0;
+
+	pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+	bPowerOn = power;
+
+		/* reset */
+		gpio_request_one(EXYNOS5_GPX1(5), GPIOF_OUT_INIT_HIGH, "GPX1");
+		mdelay(20);
+		gpio_set_value(EXYNOS5_GPX1(5), 0);
+		mdelay(20);
+		gpio_set_value(EXYNOS5_GPX1(5), 1);
+		mdelay(20);
+		gpio_free(EXYNOS5_GPX1(5));
+		mdelay(20);
+
+        return 0;
+
+}
+
+static struct mipi_dsim_platform_data tc358764_mipi_dsim_platform_data = {
+        .lcd_panel_name = "tc358764",
+        .dsim_config = &dsim_info,
+        .enabled = 0,
+        .lcd_panel_info = &tc358764_lcd_panel_info,
+        .phy_enable = s5p_dsim_init_d_phy,
+};
+
+static int tc358764_lcd_reset(struct lcd_device *ld)
+{
+        return 1;
+}
+
+/* toshiba LVDS-MIPI */
+#if TC358764_DRIVER
+static struct lcd_platform_data tc358764_lcd_platform_data = {
+        .reset                  = tc358764_lcd_reset,
+        .power_on               = __lcd_set_power,
+        .lcd_enabled            = 1,
+        .reset_delay            = 120,  /* 120ms */
+        .power_on_delay         = 25,   /* 25ms */
+        .power_off_delay        = 200,  /* 200ms */
+};
+
+static struct mipi_dsim_lcd_device tc358764_mipi_dsim_lcd_device = {
+       .name   = "tc358764",
+       .id     = -1,
+       .bus_id = 0,
+       .platform_data  = (void *)&tc358764_lcd_platform_data,
+};
+
+#else
+static void mipi_lcd_set_power(struct lcd_device *ld,
+				unsigned int power)
+{
+	if (samsung_rev() >= EXYNOS5250_REV_1_0) {
+		if (!gpio_request(EXYNOS5_GPD1(5), "GPD1")) {
+			s3c_gpio_cfgpin(EXYNOS5_GPD1(5), S3C_GPIO_SFN(1));
+			gpio_direction_output(EXYNOS5_GPD1(5), 0);
+			gpio_direction_output(EXYNOS5_GPD1(5), 1);
+			gpio_free(EXYNOS5_GPD1(5));
+		}
+	}
+	/* reset */
+	gpio_request_one(EXYNOS5_GPX1(5), GPIOF_OUT_INIT_HIGH, "GPX1");
+
+	msleep(20);
+	if (power) {
+		/* fire nRESET on power up */
+		gpio_set_value(EXYNOS5_GPX1(5), 0);
+		msleep(20);
+		gpio_set_value(EXYNOS5_GPX1(5), 1);
+		msleep(20);
+		gpio_free(EXYNOS5_GPX1(5));
+	} else {
+		/* fire nRESET on power off */
+		gpio_set_value(EXYNOS5_GPX1(5), 0);
+		msleep(20);
+		gpio_set_value(EXYNOS5_GPX1(5), 1);
+		msleep(20);
+		gpio_free(EXYNOS5_GPX1(5));
+	}
+	msleep(20);
+	/* power */
+	gpio_request_one(EXYNOS5_GPX3(0), GPIOF_OUT_INIT_LOW, "GPX3");
+	if (power) {
+		/* fire nRESET on power up */
+		gpio_set_value(EXYNOS5_GPX3(0), 1);
+		gpio_free(EXYNOS5_GPX3(0));
+	} else {
+		/* fire nRESET on power off */
+		gpio_set_value(EXYNOS5_GPX3(0), 0);
+		gpio_free(EXYNOS5_GPX3(0));
+	}
+
+#ifndef CONFIG_BACKLIGHT_PWM
+	/* backlight */
+	gpio_request_one(EXYNOS5_GPB2(0), GPIOF_OUT_INIT_LOW, "GPB2");
+	if (power) {
+		/* fire nRESET on power up */
+		gpio_set_value(EXYNOS5_GPB2(0), 1);
+		gpio_free(EXYNOS5_GPB2(0));
+	} else {
+		/* fire nRESET on power off */
+		gpio_set_value(EXYNOS5_GPB2(0), 0);
+		gpio_free(EXYNOS5_GPB2(0));
+	}
+#endif /* CONFIG_BACKLIGHT_PWM */
+}
+
+static struct lcd_platform_data s6e8ax0_lcd_platform_data = {
+        .reset                  = tc358764_lcd_reset,
+        .power_on               = mipi_lcd_set_power,
+        .lcd_enabled            = 1,
+        .reset_delay            = 120,  /* 120ms */
+        .power_on_delay         = 25,   /* 25ms */
+        .power_off_delay        = 200,  /* 200ms */
+};
+
+static struct mipi_dsim_lcd_device s6e8ax0_mipi_dsim_lcd_device = {
+       .name   = "s6e8ax0",
+       .id     = -1,
+       .bus_id = 0,
+       .platform_data  = (void *)&s6e8ax0_lcd_platform_data,
+};
+
+#endif
+
+
+#if 0
+static int smdk5250_match_fb(struct plat_lcd_data *pd, struct fb_info *info)
+{
+	/* Don't call .set_power callback while unblanking */
+	return 0;
+}
+static struct plat_lcd_data smdk5250_lcd_data = {
+	.set_power	= __lcd_set_power,
+	.match_fb	= smdk5250_match_fb,
+};
+
+static struct platform_device smdk5250_lcd = {
+	.name			= "platform-lcd",
+	.dev.platform_data	= &smdk5250_lcd_data,
+};
+#endif
+static struct resource exynos_dsim_resource[] = {
+	[0] = {
+		.start = 0x14500000,
+		.end   = 0x14500000 + 0x10000 - 1,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = 82,
+		.end   = 82,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device exynos_device_mipi_dsim = {
+	.name			= "exynos-mipi-dsim",
+	.id			= 0,
+	.num_resources		= ARRAY_SIZE(exynos_dsim_resource),
+	.resource		= exynos_dsim_resource,
+	.dev			= {
+		.platform_data	= &tc358764_mipi_dsim_platform_data,
+	},
+};
+
+
 static int smdk5250_bl_notify(struct device *unused, int brightness)
 {
 	/* manage lcd_bl_en signal */
@@ -130,6 +434,10 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
 				"exynos5-mixer", NULL),
 	OF_DEV_AUXDATA("samsung,exynos5-fimd", EXYNOS5_PA_FIMD1,
 				"exynos5-fb.1", NULL),
+
+	OF_DEV_AUXDATA("samsung,exynos5-mipi", 0x14500000,
+					"exynos-mipi-dsim", &tc358764_mipi_dsim_platform_data),
+
 	OF_DEV_AUXDATA("samsung,exynos5-dp", EXYNOS5_PA_DP, "exynos-dp", NULL),
 	OF_DEV_AUXDATA("samsung,mfc-v6", 0x11000000, "s5p-mfc-v6", NULL),
 	OF_DEV_AUXDATA("samsung,exynos5250-tmu", 0x10060000,
@@ -214,6 +522,7 @@ static void __init exynos5_dt_machine_init(void)
 	}
 
 	if (of_machine_is_compatible("samsung,exynos5250")) {
+		pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
 		gpio_request_one(EXYNOS5_GPX3(0), GPIOF_OUT_INIT_HIGH,
 								"lcd_bl_en");
 		samsung_bl_set(&smdk5250_bl_gpio_info, &smdk5250_bl_data);
@@ -224,6 +533,19 @@ static void __init exynos5_dt_machine_init(void)
 	else if (of_machine_is_compatible("samsung,exynos5440"))
 		of_platform_populate(NULL, of_default_bus_match_table,
 				     exynos5440_auxdata_lookup, NULL);
+
+
+#ifdef EXYNOS_MIPI_DRIVER
+#if TC358764_DRIVER
+        pr_err("v  MIPI:SAB exynos_mipi_dsi_register_lcd_device from exynos5_dt.c file ");
+        pr_err("v MIPI:SAB register_ldc_device_name: %s", tc358764_mipi_dsim_lcd_device.name);
+        exynos_mipi_dsi_register_lcd_device(&tc358764_mipi_dsim_lcd_device);
+#else
+	pr_err("v  MIPI:SAB exynos_mipi_dsi_register_lcd_device from exynos5_dt.c file ");
+        pr_err("v  MIPI:SAB register_ldc_device_name: %s", s6e8ax0_mipi_dsim_lcd_device.name);
+        exynos_mipi_dsi_register_lcd_device(&s6e8ax0_mipi_dsim_lcd_device);
+#endif
+#endif
 }
 
 static char const *exynos5_dt_compat[] __initdata = {
diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c
index 07d70a3a628..d34d59592c6 100644
--- a/drivers/video/exynos/exynos_mipi_dsi.c
+++ b/drivers/video/exynos/exynos_mipi_dsi.c
@@ -253,13 +253,13 @@ int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver *lcd_drv)
 
 	dsim_ddi = exynos_mipi_dsi_find_lcd_device(lcd_drv);
 	if (!dsim_ddi) {
-		pr_err("mipi_dsim_ddi object not found.\n");
+		pr_err("v mipi_dsim_ddi object not found.\n");
 		return -EFAULT;
 	}
 
 	dsim_ddi->dsim_lcd_drv = lcd_drv;
 
-	pr_info("registered panel driver(%s) to mipi-dsi driver.\n",
+	pr_info("v registered panel driver(%s) to mipi-dsi driver.\n",
 		lcd_drv->name);
 
 	return 0;
@@ -277,13 +277,23 @@ static struct mipi_dsim_ddi *exynos_mipi_dsi_bind_lcd_ddi(
 
 	mutex_lock(&dsim->lock);
 
+	pr_err("\n $$$$$ PANEL : %s\n", name);
+
 	list_for_each_entry_safe(dsim_ddi, next, &dsim_ddi_list, list) {
 		lcd_drv = dsim_ddi->dsim_lcd_drv;
 		lcd_dev = dsim_ddi->dsim_lcd_dev;
+
+		pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+#if 0		
 		if (!lcd_drv || !lcd_dev ||
 			(dsim->id != dsim_ddi->bus_id))
 				continue;
+#else
+		if (!lcd_drv || !lcd_dev)
+				continue;
+#endif
 
+		pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
 		dev_dbg(dsim->dev, "lcd_drv->id = %d, lcd_dev->id = %d\n",
 				lcd_drv->id, lcd_dev->id);
 		dev_dbg(dsim->dev, "lcd_dev->bus_id = %d, dsim->id = %d\n",
@@ -338,6 +348,8 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
 	struct mipi_dsim_ddi *dsim_ddi;
 	int ret = -EINVAL;
 
+	pr_err("\n <<<<<< %s >>>>>> \n", __func__);	
+
 	dsim = kzalloc(sizeof(struct mipi_dsim_device), GFP_KERNEL);
 	if (!dsim) {
 		dev_err(&pdev->dev, "failed to allocate dsim object.\n");
@@ -405,10 +417,12 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
 
 	mutex_init(&dsim->lock);
 
+	pr_err("\n $$$$$ PANEL : %s\n", dsim_pd->lcd_panel_name);
+
 	/* bind lcd ddi matched with panel name. */
 	dsim_ddi = exynos_mipi_dsi_bind_lcd_ddi(dsim, dsim_pd->lcd_panel_name);
 	if (!dsim_ddi) {
-		dev_err(&pdev->dev, "mipi_dsim_ddi object not found.\n");
+		dev_err(&pdev->dev, " >>> probe:  mipi_dsim_ddi object not found.\n");
 		ret = -EINVAL;
 		goto err_bind;
 	}
@@ -569,6 +583,7 @@ static int exynos_mipi_dsi_resume(struct device *dev)
 	if (client_drv && client_drv->power_on)
 		client_drv->power_on(client_dev, 1);
 
+
 	exynos_mipi_regulator_enable(dsim);
 
 	/* enable MIPI-DSI PHY. */
@@ -593,13 +608,33 @@ static const struct dev_pm_ops exynos_mipi_dsi_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(exynos_mipi_dsi_suspend, exynos_mipi_dsi_resume)
 };
 
+static struct platform_device_id exynos_mipi_driver_ids[] = {
+	{
+		.name		= "exynos-mipi",
+		.driver_data	= NULL,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(platform, exynos_mipi_driver_ids);
+
+static const struct of_device_id exynos_mipi_match[] = {
+	{
+		.compatible = "samsung,exynos5-mipi",
+		.data = NULL,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, exynos_mipi_match);
+
 static struct platform_driver exynos_mipi_dsi_driver = {
 	.probe = exynos_mipi_dsi_probe,
 	.remove = __devexit_p(exynos_mipi_dsi_remove),
+	//.id_table = exynos_mipi_driver_ids,
 	.driver = {
 		   .name = "exynos-mipi-dsim",
 		   .owner = THIS_MODULE,
 		   .pm = &exynos_mipi_dsi_pm_ops,
+		   .of_match_table = exynos_mipi_match,
 	},
 };
 
diff --git a/drivers/video/exynos/exynos_mipi_dsi_common.c b/drivers/video/exynos/exynos_mipi_dsi_common.c
index 3cd29a4fc10..8888dc74e84 100644
--- a/drivers/video/exynos/exynos_mipi_dsi_common.c
+++ b/drivers/video/exynos/exynos_mipi_dsi_common.c
@@ -813,7 +813,7 @@ int exynos_mipi_dsi_set_hs_enable(struct mipi_dsim_device *dsim)
 
 	 /* set LCDC and CPU transfer mode to HS. */
 	exynos_mipi_dsi_set_lcdc_transfer_mode(dsim, 0);
-	exynos_mipi_dsi_set_cpu_transfer_mode(dsim, 0);
+	exynos_mipi_dsi_set_cpu_transfer_mode(dsim, 1);
 	exynos_mipi_dsi_enable_hs_clock(dsim, 1);
 
 	return 0;
diff --git a/drivers/video/exynos/tc358764.c b/drivers/video/exynos/tc358764.c
index ce50b1c723b..3b359709ffb 100644
--- a/drivers/video/exynos/tc358764.c
+++ b/drivers/video/exynos/tc358764.c
@@ -56,6 +56,7 @@ static int tc358764_lcd_init(struct mipi_dsim_device *dsim)
 		{ 0x9c, 0x04, 0x0d, 0x00, 0x00, 0x00},	/* "initcode_049c" */
 	};
 
+	pr_err("mipi: func: %s line: %d\n", __func__, __LINE__);
 	max_init_codes = sizeof(arr_init_codes)/sizeof(char [6]);
 
 	for (indx_code = 0; indx_code < max_init_codes; indx_code++) {
@@ -66,6 +67,7 @@ static int tc358764_lcd_init(struct mipi_dsim_device *dsim)
 			return -EINVAL;
 	}
 
+	pr_err("mipi: func: %s line: %d\n", __func__, __LINE__);
 	return 0;
 }
 
@@ -113,6 +115,7 @@ static int tc358764_mipi_lcd_probe(struct mipi_dsim_lcd_device *dsim_dev)
 {
 	struct mipi_dsim_device *dsim_drv;
 	struct tc358764 *lcd_tc358764;
+	pr_err("mipi: func: %s line: %d\n", __func__, __LINE__);
 
 	lcd_tc358764 = kzalloc(sizeof(struct tc358764), GFP_KERNEL);
 	if (!lcd_tc358764)
@@ -123,10 +126,15 @@ static int tc358764_mipi_lcd_probe(struct mipi_dsim_lcd_device *dsim_dev)
 					dsim_dev->platform_data;
 	lcd_tc358764->dev = &dsim_dev->dev;
 
+
+	pr_err("mipi: func: %s line: %d\n", __func__, __LINE__);
 	/* get platform data information, if lcd device node is present */
-	if (lcd_tc358764->ddi_pd->pdata)
+	if (lcd_tc358764->ddi_pd->pdata) {
+
+	pr_err("mipi: func: %s line: %d\n", __func__, __LINE__);
 		if (tc358764_update_platform_lcd_data(lcd_tc358764))
 			return -EINVAL;
+	}
 
 	dsim_drv = kzalloc(sizeof(struct mipi_dsim_device), GFP_KERNEL);
 	if (!dsim_drv)
@@ -142,8 +150,11 @@ static void tc358764_power_on(struct mipi_dsim_lcd_device *dsim_dev, int power)
 {
 	struct tc358764 *lcd_tc358764 = dev_get_drvdata(&dsim_dev->dev);
 
+	pr_err("mipi: func: %s line: %d\n", __func__, __LINE__);
+
 	msleep(lcd_tc358764->ddi_pd->power_on_delay);
 
+#if 0
 	gpio_request_one(lcd_tc358764->gpio_poweron, GPIOF_OUT_INIT_HIGH, 0);
 	mdelay(20);
 	gpio_set_value(lcd_tc358764->gpio_poweron, 0);
@@ -152,10 +163,16 @@ static void tc358764_power_on(struct mipi_dsim_lcd_device *dsim_dev, int power)
 	mdelay(20);
 	gpio_free(lcd_tc358764->gpio_poweron);
 	mdelay(20);
+#else
+	
+	pr_err("mipi: func: %s, line: %d\n", __func__, __LINE__);
+	lcd_tc358764->ddi_pd->power_on(NULL, 1);
+#endif
 }
 
 static void tc358764_set_sequence(struct mipi_dsim_lcd_device *dsim_dev)
 {
+	pr_err("mipi: func: %s line: %d\n", __func__, __LINE__);
 	tc358764_lcd_init(dsim_dev->master);
 }
 
@@ -170,6 +187,7 @@ static struct mipi_dsim_lcd_driver tc358764_dsim_ddi_driver = {
 
 static int tc358764_init(void)
 {
+	pr_err("mipi: tc358764_init is called\n");
 	exynos_mipi_dsi_register_lcd_driver(&tc358764_dsim_ddi_driver);
 	return 0;
 }