[U-Boot] [PATCH] LCD: support another s6e8ax0 panel type

[Donghwa Lee]

s6e8ax0 panel has many panel of types. This patch support another panel
on TIZEN lunchbox board(HWREVISION 2). This panel has reversed panel
display type. So, I had added necessary command.

Signed-off-by: Donghwa Lee <dh09.lee at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 arch/arm/include/asm/arch-exynos/mipi_dsim.h |    1 +
 board/samsung/trats/trats.c                  |    8 ++++++++
 drivers/video/s6e8ax0.c                      |   17 ++++++++++++++++-
 3 files changed, 25 insertions(+), 1 deletions(-)

diff --git a/arch/arm/include/asm/arch-exynos/mipi_dsim.h b/arch/arm/include/asm/arch-exynos/mipi_dsim.h
index ef6a3d1..9a7cbeb 100644
--- a/arch/arm/include/asm/arch-exynos/mipi_dsim.h
+++ b/arch/arm/include/asm/arch-exynos/mipi_dsim.h
@@ -329,6 +329,7 @@ struct mipi_dsim_lcd_device {
 	char			*name;
 	int			id;
 	int			bus_id;
+	int			reverse_panel;
 
 	struct mipi_dsim_device *master;
 	void			*platform_data;
diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index 9d75b8f..4a314c0 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -54,6 +54,11 @@ u32 get_board_rev(void)
 
 static void check_hw_revision(void);
 
+static int hwrevision(int rev)
+{
+	return (board_rev & 0xf) == rev;
+}
+
 int board_init(void)
 {
 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
@@ -505,6 +510,9 @@ vidinfo_t panel_info = {
 
 void init_panel_info(vidinfo_t *vid)
 {
+	if (hwrevision(2))
+		mipi_lcd_device.reverse_panel = 1;
+
 	strcpy(s6e8ax0_platform_data.lcd_panel_name, mipi_lcd_device.name);
 	s6e8ax0_platform_data.lcd_power = lcd_power;
 	s6e8ax0_platform_data.mipi_power = mipi_power;
diff --git a/drivers/video/s6e8ax0.c b/drivers/video/s6e8ax0.c
index 02c5ccf..176c518 100644
--- a/drivers/video/s6e8ax0.c
+++ b/drivers/video/s6e8ax0.c
@@ -28,6 +28,7 @@
 static void s6e8ax0_panel_cond(struct mipi_dsim_device *dsim_dev)
 {
 	struct mipi_dsim_master_ops *ops = dsim_dev->master_ops;
+	int reverse = dsim_dev->dsim_lcd_dev->reverse_panel;
 	const unsigned char data_to_send[] = {
 		0xf8, 0x3d, 0x35, 0x00, 0x00, 0x00, 0x8d, 0x00, 0x4c,
 		0x6e, 0x10, 0x27, 0x7d, 0x3f, 0x10, 0x00, 0x00, 0x20,
@@ -36,8 +37,22 @@ static void s6e8ax0_panel_cond(struct mipi_dsim_device *dsim_dev)
 		0xff, 0xff, 0xc8
 	};
 
-	ops->cmd_write(dsim_dev, MIPI_DSI_DCS_LONG_WRITE,
+	const unsigned char data_to_send_reverse[] = {
+		0xf8, 0x19, 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, 0xc1, 0x01, 0x41, 0xc1, 0x00, 0xc1,
+		0xf6, 0xf6, 0xc1
+	};
+
+	if (reverse) {
+		ops->cmd_write(dsim_dev, MIPI_DSI_DCS_LONG_WRITE,
+			(unsigned int)data_to_send_reverse,
+			ARRAY_SIZE(data_to_send_reverse));
+	} else {
+		ops->cmd_write(dsim_dev, MIPI_DSI_DCS_LONG_WRITE,
 			(unsigned int)data_to_send, ARRAY_SIZE(data_to_send));
+	}
 }
 
 static void s6e8ax0_display_cond(struct mipi_dsim_device *dsim_dev)
-- 
1.7.4.1