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Date:   Mon, 20 Feb 2017 16:09:41 +0900
From:   Hoegeun Kwon <hoegeun.kwon@...sung.com>
To:     thierry.reding@...il.com, airlied@...ux.ie, kgene@...nel.org,
        krzk@...nel.org, robh+dt@...nel.org
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        inki.dae@...sung.com, a.hajda@...sung.com, cw00.choi@...sung.com,
        jh80.chung@...sung.com, andi.shyti@...sung.com,
        Hoegeun Kwon <hoegeun.kwon@...sung.com>,
        Donghwa Lee <dh09.lee@...sung.com>,
        Hyungwon Hwang <human.hwang@...sung.com>
Subject: [PATCH v10 2/3] drm/panel: Add support for S6E3HA2 panel driver on TM2
 board

This patch add support for MIPI-DSI based S6E3HA2 AMOLED panel
driver. This panel has 1440x2560 resolution in 5.7-inch physical
panel in the TM2 device.

Signed-off-by: Donghwa Lee <dh09.lee@...sung.com>
Signed-off-by: Hyungwon Hwang <human.hwang@...sung.com>
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@...sung.com>
Tested-by: Chanwoo Choi <cw00.choi@...sung.com>
Reviewed-by: Andrzej Hajda <a.hajda@...sung.com>
---
 drivers/gpu/drm/panel/Kconfig                 |   6 +
 drivers/gpu/drm/panel/Makefile                |   1 +
 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 739 ++++++++++++++++++++++++++
 3 files changed, 746 insertions(+)
 create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 62aba97..d913c83 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -52,6 +52,12 @@ config DRM_PANEL_PANASONIC_VVX10F034N00
 	  WUXGA (1920x1200) Novatek NT1397-based DSI panel as found in some
 	  Xperia Z2 tablets
 
+config DRM_PANEL_SAMSUNG_S6E3HA2
+	tristate "Samsung S6E3HA2 DSI video mode panel"
+	depends on OF
+	depends on DRM_MIPI_DSI
+	select VIDEOMODE_HELPERS
+
 config DRM_PANEL_SAMSUNG_S6E8AA0
 	tristate "Samsung S6E8AA0 DSI video mode panel"
 	depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index a5c7ec0..1d483b0 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o
 obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
 obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o
+obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o
 obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o
 obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o
diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c
new file mode 100644
index 0000000..4cc08d7
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c
@@ -0,0 +1,739 @@
+/*
+ * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver.
+ *
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ * Donghwa Lee <dh09.lee@...sung.com>
+ * Hyungwon Hwang <human.hwang@...sung.com>
+ * Hoegeun Kwon <hoegeun.kwon@...sung.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 <drm/drmP.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_panel.h>
+#include <linux/backlight.h>
+#include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
+
+#define S6E3HA2_MIN_BRIGHTNESS		0
+#define S6E3HA2_MAX_BRIGHTNESS		100
+#define S6E3HA2_DEFAULT_BRIGHTNESS	80
+
+#define S6E3HA2_NUM_GAMMA_STEPS		46
+#define S6E3HA2_GAMMA_CMD_CNT		35
+#define S6E3HA2_VINT_STATUS_MAX		10
+
+static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = {
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83,
+	  0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c,
+	  0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84,
+	  0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a,
+	  0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
+	  0x85, 0x86, 0x8a, 0x8a, 0x84, 0x88, 0x81, 0x84, 0x8a, 0x88, 0x8a,
+	  0x91, 0x84, 0xb1, 0xae, 0x8b, 0xd5, 0xb2, 0xcc, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
+	  0x85, 0x86, 0x8a, 0x8a, 0x84, 0x87, 0x81, 0x84, 0x8a, 0x87, 0x8a,
+	  0x91, 0x85, 0xae, 0xac, 0x8a, 0xc3, 0xa3, 0xc0, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x85, 0x85,
+	  0x86, 0x85, 0x88, 0x89, 0x84, 0x89, 0x82, 0x84, 0x87, 0x85, 0x8b,
+	  0x91, 0x88, 0xad, 0xab, 0x8a, 0xb7, 0x9b, 0xb6, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
+	  0x85, 0x86, 0x89, 0x8a, 0x84, 0x89, 0x83, 0x83, 0x86, 0x84, 0x8b,
+	  0x90, 0x84, 0xb0, 0xae, 0x8b, 0xce, 0xad, 0xc8, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
+	  0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x89,
+	  0x8f, 0x84, 0xac, 0xaa, 0x89, 0xb1, 0x98, 0xaf, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
+	  0x85, 0x86, 0x88, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8c,
+	  0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
+	  0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x88,
+	  0x8b, 0x82, 0xad, 0xaa, 0x8a, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83,
+	  0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8a,
+	  0x8e, 0x84, 0xae, 0xac, 0x89, 0xda, 0xb7, 0xd0, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
+	  0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x80, 0x83, 0x82, 0x8b,
+	  0x8e, 0x85, 0xac, 0xaa, 0x89, 0xc8, 0xaa, 0xc1, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
+	  0x85, 0x86, 0x87, 0x89, 0x81, 0x85, 0x81, 0x84, 0x86, 0x84, 0x8c,
+	  0x8c, 0x84, 0xa9, 0xa8, 0x87, 0xa3, 0x92, 0xa1, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
+	  0x85, 0x86, 0x87, 0x89, 0x84, 0x86, 0x83, 0x80, 0x83, 0x81, 0x8c,
+	  0x8d, 0x84, 0xaa, 0xaa, 0x89, 0xce, 0xaf, 0xc5, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
+	  0x85, 0x86, 0x87, 0x89, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c,
+	  0x8c, 0x84, 0xa8, 0xa8, 0x88, 0xb5, 0x9f, 0xb0, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
+	  0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c,
+	  0x8b, 0x84, 0xab, 0xa8, 0x86, 0xd4, 0xb4, 0xc9, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
+	  0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x84, 0x84, 0x85, 0x8b,
+	  0x8a, 0x83, 0xa6, 0xa5, 0x84, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84,
+	  0x86, 0x85, 0x86, 0x86, 0x82, 0x85, 0x81, 0x82, 0x83, 0x84, 0x8e,
+	  0x8b, 0x83, 0xa4, 0xa3, 0x8a, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83,
+	  0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8e,
+	  0x8b, 0x83, 0xa4, 0xa2, 0x86, 0xc1, 0xa9, 0xb7, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83,
+	  0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8d,
+	  0x89, 0x82, 0xa2, 0xa1, 0x84, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83,
+	  0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x83, 0x83, 0x85, 0x8c,
+	  0x87, 0x7f, 0xa2, 0x9d, 0x88, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xbb, 0x00, 0xc5, 0x00, 0xb4, 0x87, 0x86, 0x86, 0x84, 0x83,
+	  0x86, 0x87, 0x87, 0x87, 0x80, 0x82, 0x7f, 0x86, 0x86, 0x88, 0x8a,
+	  0x84, 0x7e, 0x9d, 0x9c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xbd, 0x00, 0xc7, 0x00, 0xb7, 0x87, 0x85, 0x85, 0x84, 0x83,
+	  0x86, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x83, 0x84, 0x85, 0x8a,
+	  0x85, 0x7e, 0x9c, 0x9b, 0x85, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xc0, 0x00, 0xca, 0x00, 0xbb, 0x87, 0x86, 0x85, 0x83, 0x83,
+	  0x85, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x84, 0x85, 0x86, 0x89,
+	  0x83, 0x7d, 0x9c, 0x99, 0x87, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xc4, 0x00, 0xcd, 0x00, 0xbe, 0x87, 0x86, 0x85, 0x83, 0x83,
+	  0x86, 0x85, 0x85, 0x87, 0x81, 0x82, 0x80, 0x82, 0x82, 0x83, 0x8a,
+	  0x85, 0x7f, 0x9f, 0x9b, 0x86, 0xb4, 0xa1, 0xac, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xc7, 0x00, 0xd0, 0x00, 0xc2, 0x87, 0x85, 0x85, 0x83, 0x82,
+	  0x85, 0x85, 0x85, 0x86, 0x82, 0x83, 0x80, 0x82, 0x82, 0x84, 0x87,
+	  0x86, 0x80, 0x9e, 0x9a, 0x87, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xca, 0x00, 0xd2, 0x00, 0xc5, 0x87, 0x85, 0x84, 0x82, 0x82,
+	  0x84, 0x85, 0x85, 0x86, 0x81, 0x82, 0x7f, 0x82, 0x82, 0x84, 0x88,
+	  0x86, 0x81, 0x9d, 0x98, 0x86, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xce, 0x00, 0xd6, 0x00, 0xca, 0x86, 0x85, 0x84, 0x83, 0x83,
+	  0x85, 0x84, 0x84, 0x85, 0x81, 0x82, 0x80, 0x81, 0x81, 0x82, 0x89,
+	  0x86, 0x81, 0x9c, 0x97, 0x86, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xd1, 0x00, 0xd9, 0x00, 0xce, 0x86, 0x84, 0x83, 0x83, 0x82,
+	  0x85, 0x85, 0x85, 0x86, 0x81, 0x83, 0x81, 0x82, 0x82, 0x83, 0x86,
+	  0x83, 0x7f, 0x99, 0x95, 0x86, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xd4, 0x00, 0xdb, 0x00, 0xd1, 0x86, 0x85, 0x83, 0x83, 0x82,
+	  0x85, 0x84, 0x84, 0x85, 0x80, 0x83, 0x82, 0x80, 0x80, 0x81, 0x87,
+	  0x84, 0x81, 0x98, 0x93, 0x85, 0xae, 0x9c, 0xa8, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xd8, 0x00, 0xde, 0x00, 0xd6, 0x86, 0x84, 0x83, 0x81, 0x81,
+	  0x83, 0x85, 0x85, 0x85, 0x82, 0x83, 0x81, 0x81, 0x81, 0x83, 0x86,
+	  0x84, 0x80, 0x98, 0x91, 0x85, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xdc, 0x00, 0xe2, 0x00, 0xda, 0x85, 0x84, 0x83, 0x82, 0x82,
+	  0x84, 0x84, 0x84, 0x85, 0x81, 0x82, 0x82, 0x80, 0x80, 0x81, 0x83,
+	  0x82, 0x7f, 0x99, 0x93, 0x86, 0x94, 0x8b, 0x92, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xdf, 0x00, 0xe5, 0x00, 0xde, 0x85, 0x84, 0x82, 0x82, 0x82,
+	  0x84, 0x83, 0x83, 0x84, 0x81, 0x81, 0x80, 0x83, 0x82, 0x84, 0x82,
+	  0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
+	  0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80,
+	  0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81,
+	  0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83,
+	  0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
+	  0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83,
+	  0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
+	  0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82,
+	  0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
+	  0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83,
+	  0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81,
+	  0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83,
+	  0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80,
+	  0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81,
+	  0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81,
+	  0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83,
+	  0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80,
+	  0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80,
+	  0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80,
+	  0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d,
+	  0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80,
+	  0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82,
+	  0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80,
+	  0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+	  0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80,
+	  0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+	  0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
+	  0x00, 0x00 },
+	{ 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80,
+	  0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+	  0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00,
+	  0x00, 0x00 }
+};
+
+unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = {
+	0x18, 0x19, 0x1a, 0x1b, 0x1c,
+	0x1d, 0x1e, 0x1f, 0x20, 0x21
+};
+
+struct s6e3ha2 {
+	struct device *dev;
+	struct drm_panel panel;
+	struct backlight_device *bl_dev;
+
+	struct regulator_bulk_data supplies[2];
+	struct gpio_desc *reset_gpio;
+	struct gpio_desc *enable_gpio;
+};
+
+static int s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len)
+{
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+
+	return mipi_dsi_dcs_write_buffer(dsi, data, len);
+}
+
+#define s6e3ha2_dcs_write_seq_static(ctx, seq...) do {	\
+	static const u8 d[] = { seq };			\
+	int ret;					\
+	ret = s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d));	\
+	if (ret < 0)					\
+		return ret;				\
+} while (0)
+
+#define s6e3ha2_call_write_func(ret, func) do {	\
+	ret = (func);				\
+	if (ret < 0)				\
+		return ret;			\
+} while (0)
+
+static int s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a);
+	return 0;
+}
+
+static int s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5);
+	return 0;
+}
+
+static int s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a);
+	return 0;
+}
+
+static int s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5);
+	return 0;
+}
+
+static int s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67);
+	s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09);
+	return 0;
+}
+
+static int s6e3ha2_freq_calibration(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c);
+	s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39);
+	s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0);
+	s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20);
+	s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, 0x40,
+				0x80, 0xc0, 0x28, 0x28, 0x28, 0x28, 0x39, 0xc5);
+	return 0;
+}
+
+static int s6e3ha2_aor_control(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10);
+	return 0;
+}
+
+static int s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a);
+	return 0;
+}
+
+static int s6e3ha2_acl_off(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00);
+	return 0;
+}
+
+static int s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40);
+	return 0;
+}
+
+static int s6e3ha2_test_global(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07);
+	return 0;
+}
+
+static int s6e3ha2_test(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19);
+	return 0;
+}
+
+static int s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xbd, 0x33, 0x11, 0x02,
+					0x16, 0x02, 0x16);
+	return 0;
+}
+
+static int s6e3ha2_pentile_control(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8);
+	return 0;
+}
+
+static int s6e3ha2_poc_global(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20);
+	return 0;
+}
+
+static int s6e3ha2_poc_setting(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08);
+	return 0;
+}
+
+static int s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51);
+	return 0;
+}
+
+static int s6e3ha2_err_fg_set(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44);
+	return 0;
+}
+
+static int s6e3ha2_hbm_off(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00);
+	return 0;
+}
+
+static int s6e3ha2_te_start_setting(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09);
+	return 0;
+}
+
+static int s6e3ha2_gamma_update(struct s6e3ha2 *ctx)
+{
+	s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03);
+	ndelay(100); /* need for 100ns delay */
+	s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00);
+	return 0;
+}
+
+static int s6e3ha2_get_brightness(struct backlight_device *bl_dev)
+{
+	return bl_dev->props.brightness;
+}
+
+static int s6e3ha2_set_vint(struct s6e3ha2 *ctx)
+{
+	struct backlight_device *bl_dev = ctx->bl_dev;
+	unsigned int brightness = bl_dev->props.brightness;
+	unsigned char data[] = { 0xf4, 0x8b,
+			vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) /
+			S6E3HA2_MAX_BRIGHTNESS] };
+
+	return s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data));
+}
+
+static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness)
+{
+	return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) /
+		S6E3HA2_MAX_BRIGHTNESS;
+}
+
+static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness)
+{
+	struct backlight_device *bl_dev = ctx->bl_dev;
+	unsigned int index = s6e3ha2_get_brightness_index(brightness);
+	u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, };
+	int ret;
+
+	memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT);
+	s6e3ha2_call_write_func(ret,
+				s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)));
+
+	s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx));
+	bl_dev->props.brightness = brightness;
+
+	return 0;
+}
+
+static int s6e3ha2_set_brightness(struct backlight_device *bl_dev)
+{
+	struct s6e3ha2 *ctx = bl_get_data(bl_dev);
+	unsigned int brightness = bl_dev->props.brightness;
+	int ret;
+
+	if (brightness < S6E3HA2_MIN_BRIGHTNESS ||
+		brightness > bl_dev->props.max_brightness) {
+		dev_err(ctx->dev, "Invalid brightness: %u\n", brightness);
+		return -EINVAL;
+	}
+
+	if (bl_dev->props.power > FB_BLANK_NORMAL)
+		return -EPERM;
+
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_update_gamma(ctx, brightness));
+	s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_set_vint(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
+
+	return 0;
+}
+
+static const struct backlight_ops s6e3ha2_bl_ops = {
+	.get_brightness = s6e3ha2_get_brightness,
+	.update_status = s6e3ha2_set_brightness,
+};
+
+static int s6e3ha2_panel_init(struct s6e3ha2 *ctx)
+{
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+	int ret;
+
+	s6e3ha2_call_write_func(ret, mipi_dsi_dcs_exit_sleep_mode(dsi));
+	usleep_range(5000, 6000);
+
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_single_dsi_set(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_freq_calibration(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
+
+	return 0;
+}
+
+static int s6e3ha2_power_off(struct s6e3ha2 *ctx)
+{
+	return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+}
+
+static int s6e3ha2_disable(struct drm_panel *panel)
+{
+	struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+	int ret;
+
+	s6e3ha2_call_write_func(ret, mipi_dsi_dcs_enter_sleep_mode(dsi));
+	s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_off(dsi));
+
+	msleep(40);
+	ctx->bl_dev->props.power = FB_BLANK_NORMAL;
+
+	return 0;
+}
+
+static int s6e3ha2_unprepare(struct drm_panel *panel)
+{
+	struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
+
+	return s6e3ha2_power_off(ctx);
+}
+
+static int s6e3ha2_power_on(struct s6e3ha2 *ctx)
+{
+	int ret;
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+	if (ret < 0)
+		return ret;
+
+	msleep(120);
+
+	gpiod_set_value(ctx->enable_gpio, 0);
+	usleep_range(5000, 6000);
+	gpiod_set_value(ctx->enable_gpio, 1);
+
+	gpiod_set_value(ctx->reset_gpio, 1);
+	usleep_range(5000, 6000);
+	gpiod_set_value(ctx->reset_gpio, 0);
+	usleep_range(5000, 6000);
+
+	return 0;
+}
+static int s6e3ha2_prepare(struct drm_panel *panel)
+{
+	struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
+	int ret;
+
+	ret = s6e3ha2_power_on(ctx);
+	if (ret < 0)
+		return ret;
+
+	ret = s6e3ha2_panel_init(ctx);
+	if (ret < 0)
+		goto err;
+
+	ctx->bl_dev->props.power = FB_BLANK_NORMAL;
+
+	return 0;
+
+err:
+	s6e3ha2_power_off(ctx);
+	return ret;
+}
+
+static int s6e3ha2_enable(struct drm_panel *panel)
+{
+	struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel);
+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
+	int ret;
+
+	/* common setting */
+	s6e3ha2_call_write_func(ret,
+		mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK));
+
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_f0(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_on_fc(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_touch_hsync_on1(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_pentile_control(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_poc_global(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_poc_setting(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_fc(ctx));
+
+	/* pcd setting off for TB */
+	s6e3ha2_call_write_func(ret, s6e3ha2_pcd_set_off(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_err_fg_set(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_te_start_setting(ctx));
+
+	/* brightness setting */
+	s6e3ha2_call_write_func(ret, s6e3ha2_set_brightness(ctx->bl_dev));
+	s6e3ha2_call_write_func(ret, s6e3ha2_aor_control(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_caps_elvss_set(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_gamma_update(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_acl_off(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_acl_off_opr(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_hbm_off(ctx));
+
+	/* elvss temp compensation */
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_global(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_test(ctx));
+	s6e3ha2_call_write_func(ret, s6e3ha2_test_key_off_f0(ctx));
+
+	s6e3ha2_call_write_func(ret, mipi_dsi_dcs_set_display_on(dsi));
+	ctx->bl_dev->props.power = FB_BLANK_UNBLANK;
+
+	return 0;
+}
+
+static const struct drm_display_mode default_mode = {
+	.clock = 222372,
+	.hdisplay = 1440,
+	.hsync_start = 1440 + 1,
+	.hsync_end = 1440 + 1 + 1,
+	.htotal = 1440 + 1 + 1 + 1,
+	.vdisplay = 2560,
+	.vsync_start = 2560 + 1,
+	.vsync_end = 2560 + 1 + 1,
+	.vtotal = 2560 + 1 + 1 + 15,
+	.vrefresh = 60,
+	.flags = 0,
+};
+
+static int s6e3ha2_get_modes(struct drm_panel *panel)
+{
+	struct drm_connector *connector = panel->connector;
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(panel->drm, &default_mode);
+	if (!mode) {
+		DRM_ERROR("failed to add mode %ux%ux@%u\n",
+				default_mode.hdisplay, default_mode.vdisplay,
+				default_mode.vrefresh);
+		return -ENOMEM;
+	}
+
+	drm_mode_set_name(mode);
+
+	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+	drm_mode_probed_add(connector, mode);
+
+	connector->display_info.width_mm = 71;
+	connector->display_info.height_mm = 125;
+
+	return 1;
+}
+
+static const struct drm_panel_funcs s6e3ha2_drm_funcs = {
+	.disable = s6e3ha2_disable,
+	.unprepare = s6e3ha2_unprepare,
+	.prepare = s6e3ha2_prepare,
+	.enable = s6e3ha2_enable,
+	.get_modes = s6e3ha2_get_modes,
+};
+
+static int s6e3ha2_probe(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	struct s6e3ha2 *ctx;
+	int ret;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	mipi_dsi_set_drvdata(dsi, ctx);
+
+	ctx->dev = dev;
+
+	dsi->lanes = 4;
+	dsi->format = MIPI_DSI_FMT_RGB888;
+	dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+	ctx->supplies[0].supply = "vdd3";
+	ctx->supplies[1].supply = "vci";
+
+	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
+				      ctx->supplies);
+	if (ret < 0) {
+		dev_err(dev, "failed to get regulators: %d\n", ret);
+		return ret;
+	}
+
+	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+	if (IS_ERR(ctx->reset_gpio)) {
+		dev_err(dev, "cannot get reset-gpios %ld\n",
+			PTR_ERR(ctx->reset_gpio));
+		return PTR_ERR(ctx->reset_gpio);
+	}
+
+	ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
+	if (IS_ERR(ctx->enable_gpio)) {
+		dev_err(dev, "cannot get enable-gpios %ld\n",
+			PTR_ERR(ctx->enable_gpio));
+		return PTR_ERR(ctx->enable_gpio);
+	}
+
+	ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx,
+						&s6e3ha2_bl_ops, NULL);
+	if (IS_ERR(ctx->bl_dev)) {
+		dev_err(dev, "failed to register backlight device\n");
+		return PTR_ERR(ctx->bl_dev);
+	}
+
+	ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS;
+	ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS;
+	ctx->bl_dev->props.power = FB_BLANK_POWERDOWN;
+
+	drm_panel_init(&ctx->panel);
+	ctx->panel.dev = dev;
+	ctx->panel.funcs = &s6e3ha2_drm_funcs;
+
+	ret = drm_panel_add(&ctx->panel);
+	if (ret < 0)
+		goto unregister_backlight;
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret < 0)
+		goto remove_panel;
+
+	return ret;
+
+remove_panel:
+	drm_panel_remove(&ctx->panel);
+
+unregister_backlight:
+	backlight_device_unregister(ctx->bl_dev);
+
+	return ret;
+}
+
+static int s6e3ha2_remove(struct mipi_dsi_device *dsi)
+{
+	struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi);
+
+	mipi_dsi_detach(dsi);
+	drm_panel_remove(&ctx->panel);
+	backlight_device_unregister(ctx->bl_dev);
+
+	return 0;
+}
+
+static const struct of_device_id s6e3ha2_of_match[] = {
+	{ .compatible = "samsung,s6e3ha2" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, s6e3ha2_of_match);
+
+static struct mipi_dsi_driver s6e3ha2_driver = {
+	.probe = s6e3ha2_probe,
+	.remove = s6e3ha2_remove,
+	.driver = {
+		.name = "panel-samsung-s6e3ha2",
+		.of_match_table = s6e3ha2_of_match,
+	},
+};
+module_mipi_dsi_driver(s6e3ha2_driver);
+
+MODULE_AUTHOR("Donghwa Lee <dh09.lee@...sung.com>");
+MODULE_AUTHOR("Hyungwon Hwang <human.hwang@...sung.com>");
+MODULE_AUTHOR("Hoegeun Kwon <hoegeun.kwon@...sung.com>");
+MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver");
+MODULE_LICENSE("GPL v2");
-- 
1.9.1

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