From 4ffb13d019eae8f47b13ca39f93d153631712779 Mon Sep 17 00:00:00 2001
From: Kim Manseok <manseoks.kim@samsung.com>
Date: Fri, 28 Sep 2018 13:16:56 +0900
Subject: [PATCH] [9610] fbdev: dpu20: Add new panel for multi panel solution

Change-Id: I9ce718e4df242f7c2603bfc427b461e5e1d5b0b8
Signed-off-by: Kim Manseok <manseoks.kim@samsung.com>
---
 .../dts/exynos/exynos9610-display-lcd.dtsi    |  36 +++
 drivers/video/fbdev/exynos/dpu20/dsim.h       |   1 +
 drivers/video/fbdev/exynos/dpu20/dsim_drv.c   |   9 +
 .../video/fbdev/exynos/dpu20/panels/Makefile  |   3 +-
 .../fbdev/exynos/dpu20/panels/lcd_ctrl.h      |  11 +
 .../exynos/dpu20/panels/nt36672a_lcd_ctrl.c   | 130 +++++++++++
 .../exynos/dpu20/panels/nt36672a_mipi_lcd.c   | 207 ++++++++++++++++++
 .../exynos/dpu20/panels/nt36672a_param.h      |  44 ++++
 8 files changed, 440 insertions(+), 1 deletion(-)
 create mode 100644 drivers/video/fbdev/exynos/dpu20/panels/nt36672a_lcd_ctrl.c
 create mode 100644 drivers/video/fbdev/exynos/dpu20/panels/nt36672a_mipi_lcd.c
 create mode 100644 drivers/video/fbdev/exynos/dpu20/panels/nt36672a_param.h

diff --git a/arch/arm64/boot/dts/exynos/exynos9610-display-lcd.dtsi b/arch/arm64/boot/dts/exynos/exynos9610-display-lcd.dtsi
index fb85f58f0db2..f8795b5d643e 100644
--- a/arch/arm64/boot/dts/exynos/exynos9610-display-lcd.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos9610-display-lcd.dtsi
@@ -254,6 +254,42 @@
 				hdr_max_avg_luma = <1200000>;	/* 120 */
 				hdr_min_luma = <5>;				/* 0.0005 */
 			};
+
+			nt36672a: nt36672a {
+				device_type = "novatek-nt36672a";
+				mode = <0>; /* 0: video mode, 1: DP command mode, 2: MIPI command mode */
+				resolution = <1080 2246>;
+				size = <80 120>;
+				timing,refresh = <60>;
+				timing,h-porch = <20 40 40>;
+				timing,v-porch = <2 10 10>;
+				timing,dsi-hs-clk = <1300>;
+				/* TODO : pms value to be set */
+				timing,pmsk = <1 100 1 0>;
+				timing,dsi-escape-clk = <20>;
+				mic_en = <0>;		/* 0: Disable, 1: Enable */
+				mic_ratio = <0>;	/* 0: 1/2 mic, 1: 1/3 mic */
+				mic_ver = <0>;		/* 0: mic v1.1, 1: v1.2, 2: v2.0 */
+				type_of_ddi = <2>;	/* 0: Samsung Mobile, 1: MAGNA, 2: Normal(Etc) */
+				dsc_en = <0>;		/* 0: Disable, 1: Enable */
+				dsc_cnt = <0>;		/* used DSC count */
+				dsc_slice_num = <0>;	/* count of dsc slice */
+				data_lane = <4>;	/* number of using data lane */
+				cmd_underrun_lp_ref = <4942>;	/* for underrun detect at command mode*/
+				vt_compensation = <14>;	/* for underrun detect at video mode*/
+				mres_en = <0>;
+				mres_number = <3>;
+				mres_width = <1440 1080 720>;
+				mres_height = <2960 2220 1480>;
+				mres_dsc_width = <720 540 360>;
+				mres_dsc_height = <40 30 74>;
+				mres_dsc_en = <1 1 0>;
+				hdr_num = <1>;		/* max: 4 */
+				hdr_type = <2 0 0 0>;	/* 1: DOLBY_VISION, 2: HDR10, 3: HLG */
+				hdr_max_luma = <5400000>;		/* 540 */
+				hdr_max_avg_luma = <1200000>;	/* 120 */
+				hdr_min_luma = <5>;				/* 0.0005 */
+			};
 		};
 	};
 };
diff --git a/drivers/video/fbdev/exynos/dpu20/dsim.h b/drivers/video/fbdev/exynos/dpu20/dsim.h
index bdcc70c23d66..20c9288ea4fa 100644
--- a/drivers/video/fbdev/exynos/dpu20/dsim.h
+++ b/drivers/video/fbdev/exynos/dpu20/dsim.h
@@ -79,6 +79,7 @@ extern struct dsim_lcd_driver s6e3ha8_mipi_lcd_driver;
 extern struct dsim_lcd_driver s6e3aa2_mipi_lcd_driver;
 extern struct dsim_lcd_driver s6e3fa0_mipi_lcd_driver;
 extern struct dsim_lcd_driver s6e3fa7_mipi_lcd_driver;
+extern struct dsim_lcd_driver nt36672a_mipi_lcd_driver;
 
 /* define video timer interrupt */
 enum {
diff --git a/drivers/video/fbdev/exynos/dpu20/dsim_drv.c b/drivers/video/fbdev/exynos/dpu20/dsim_drv.c
index d1f8b8ce2c66..4434baa61f86 100644
--- a/drivers/video/fbdev/exynos/dpu20/dsim_drv.c
+++ b/drivers/video/fbdev/exynos/dpu20/dsim_drv.c
@@ -1308,6 +1308,11 @@ static void dsim_parse_lcd_info(struct dsim_device *dsim)
 		dsim_info("ddi type : %s\n", ddi_device_type);
 		break;
 
+	case 0xff216102:
+		ddi_device_type = "novatek-nt36672a";
+		dsim_info("ddi type : %s\n", ddi_device_type);
+		break;
+
 	default:
 		dsim_info("can't read ddi_device_type\n");
 		BUG();
@@ -1531,6 +1536,10 @@ static void dsim_register_panel(struct dsim_device *dsim)
 		dsim->panel_ops = &s6e3fa0_mipi_lcd_driver;
 		dsim_info("panel ops : s6e3fa0_mipi_lcd_driver\n");
 		break;
+	case 0xff216102:
+		dsim->panel_ops = &nt36672a_mipi_lcd_driver;
+		dsim_info("panel ops : nt36672a_mipi_lcd_driver\n");
+		break;
 	default:
 		dsim_info("panel ops is not bind\n");
 		BUG();
diff --git a/drivers/video/fbdev/exynos/dpu20/panels/Makefile b/drivers/video/fbdev/exynos/dpu20/panels/Makefile
index 5147f2e9b862..a7f90570ff05 100644
--- a/drivers/video/fbdev/exynos/dpu20/panels/Makefile
+++ b/drivers/video/fbdev/exynos/dpu20/panels/Makefile
@@ -1,4 +1,5 @@
-obj-$(CONFIG_EXYNOS_DECON_LCD_MULTI)	+= s6e3fa0_mipi_lcd.o s6e3fa0_lcd_ctrl.o
+obj-$(CONFIG_EXYNOS_DECON_LCD_MULTI)	+= s6e3fa0_mipi_lcd.o s6e3fa0_lcd_ctrl.o \
+					nt36672a_mipi_lcd.o nt36672a_lcd_ctrl.o
 obj-$(CONFIG_EXYNOS_DECON_LCD_S6E3HA2K)	+= s6e3ha2k_mipi_lcd.o s6e3ha2k_lcd_ctrl.o
 obj-$(CONFIG_EXYNOS_DECON_LCD_S6E3HF4)	+= s6e3hf4_mipi_lcd.o s6e3hf4_lcd_ctrl.o
 obj-$(CONFIG_EXYNOS_DECON_LCD_S6E3HA6)	+= s6e3ha6_mipi_lcd.o s6e3ha6_lcd_ctrl.o
diff --git a/drivers/video/fbdev/exynos/dpu20/panels/lcd_ctrl.h b/drivers/video/fbdev/exynos/dpu20/panels/lcd_ctrl.h
index 91a05fc811e0..92ddd9bb383b 100644
--- a/drivers/video/fbdev/exynos/dpu20/panels/lcd_ctrl.h
+++ b/drivers/video/fbdev/exynos/dpu20/panels/lcd_ctrl.h
@@ -25,4 +25,15 @@ int s6e3fa0_lcd_dump(int id);
 void s6e3fa0_lcd_mres(int id, int mres_idx, int dsc_en);
 void s6e3fa0_lcd_lane_ctl(int id, unsigned int lane_num);
 
+void nt36672a_lcd_init(int id, struct decon_lcd *lcd);
+void nt36672a_lcd_enable(int id);
+void nt36672a_lcd_disable(int id);
+void nt36672a_lcd_sleepin(int id);
+void nt36672a_lcd_sleepout(int id);
+int nt36672a_lcd_gamma_ctrl(int id, unsigned int backlightlevel);
+int nt36672a_lcd_gamma_update(int id);
+int nt36672a_lcd_dump(int id);
+void nt36672a_lcd_mres(int id, int mres_idx, int dsc_en);
+void nt36672a_lcd_lane_ctl(int id, unsigned int lane_num);
+
 #endif /* __LCD_CTRL_H__ */
diff --git a/drivers/video/fbdev/exynos/dpu20/panels/nt36672a_lcd_ctrl.c b/drivers/video/fbdev/exynos/dpu20/panels/nt36672a_lcd_ctrl.c
new file mode 100644
index 000000000000..4913b3921cb5
--- /dev/null
+++ b/drivers/video/fbdev/exynos/dpu20/panels/nt36672a_lcd_ctrl.c
@@ -0,0 +1,130 @@
+/* drivers/video/exynos/panels/nt36672a_lcd_ctrl.c
+ *
+ * Samsung SoC MIPI LCD CONTROL functions
+ *
+ * Copyright (c) 2018 Samsung Electronics
+ *
+ * Hwangjae Lee, <hj-yo.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 "nt36672a_param.h"
+#include "lcd_ctrl.h"
+
+/* use FW_TEST definition when you test CAL on firmware */
+/* #define FW_TEST */
+#ifdef FW_TEST
+#include "../dsim_fw.h"
+#include "mipi_display.h"
+#else
+#include "../dsim.h"
+#include <video/mipi_display.h>
+#endif
+
+#define GAMMA_PARAM_SIZE 26
+
+#define NT36672A_VIDEO_VBP	2
+#define NT36672A_VIDEO_VFP	10
+#define NT36672A_VIDEO_VSA	10
+#define NT36672A_VIDEO_HBP	20
+#define NT36672A_VIDEO_HFP	40
+#define NT36672A_VIDEO_HSA	40
+
+#define NT36672A_HORIZONTAL	1080
+#define NT36672A_VERTICAL	2246
+
+#ifdef FW_TEST /* This information is moved to DT */
+#define CONFIG_FB_I80_COMMAND_MODE
+
+struct decon_lcd nt36672a_lcd_info = {
+	.mode = DECON_VIDEO_MODE,
+	.vfp = NT36672A_VIDEO_VFP,
+	.vbp = NT36672A_VIDEO_VBP,
+	.hfp = NT36672A_VIDEO_HFP,
+	.hbp = NT36672A_VIDEO_HBP,
+	.vsa = NT36672A_VIDEO_VSA,
+	.hsa = NT36672A_VIDEO_HSA,
+	.xres = NT36672A_HORIZONTAL,
+	.yres = NT36672A_VERTICAL,
+
+	/* Maybe, width and height will be removed */
+	.width = 70,
+	.height = 121,
+
+	/* Mhz */
+	.hs_clk = 1100,
+	.esc_clk = 20,
+
+	.fps = 60,
+	.mic_enabled = 0,
+	.mic_ver = MIC_VER_1_2,
+};
+#endif
+
+/*
+ * NT36672A lcd init sequence
+ *
+ * Parameters
+ *	- mic : if mic is enabled, MIC_ENABLE command must be sent
+ *	- mode : LCD init sequence depends on command or video mode
+ */
+void nt36672a_lcd_init(int id, struct decon_lcd *lcd)
+{
+	mdelay(12);
+
+	if (dsim_wr_data(id, MIPI_DSI_DCS_SHORT_WRITE_PARAM,
+				SEQ_CMD_0[0],
+				SEQ_CMD_0[1]) < 0)
+		dsim_err("fail to send SEQ_CMD_0 command.\n");
+	mdelay(12);
+
+	if (dsim_wr_data(id, MIPI_DSI_DCS_SHORT_WRITE_PARAM,
+				SEQ_CMD_1[0],
+				SEQ_CMD_1[1]) < 0)
+		dsim_err("fail to send SEQ_CMD_1 command.\n");
+	mdelay(12);
+
+	if (dsim_wr_data(id, MIPI_DSI_DCS_SHORT_WRITE_PARAM,
+				SEQ_CMD_2[0],
+				SEQ_CMD_2[1]) < 0)
+		dsim_err("fail to send SEQ_CMD_2 command.\n");
+	mdelay(12);
+
+	if (dsim_wr_data(id, MIPI_DSI_DCS_SHORT_WRITE, SEQ_SLEEP_OUT[0], 0) < 0)
+		dsim_err("fail to send SEQ_SLEEP_OUT command.\n");
+	mdelay(120);
+}
+
+void nt36672a_lcd_enable(int id)
+{
+	if (dsim_wr_data(id, MIPI_DSI_DCS_SHORT_WRITE, SEQ_DISPLAY_ON[0], 0) < 0)
+		dsim_err("fail to send SEQ_DISPLAY_ON command.\n");
+}
+
+void nt36672a_lcd_disable(int id)
+{
+	if (dsim_wr_data(id, MIPI_DSI_DCS_SHORT_WRITE, SEQ_DISPLAY_OFF[0], 0) < 0)
+		dsim_err("fail to send SEQ_DISPLAY_OFF command.\n");
+
+	if (dsim_wr_data(id, MIPI_DSI_DCS_SHORT_WRITE, SEQ_SLEEP_IN[0], 0) < 0)
+		dsim_err("fail to send SEQ_SLEEP_IN command.\n");
+	mdelay(100);
+}
+
+/*
+ * Set gamma values
+ *
+ * Parameter
+ *	- backlightlevel : It is from 0 to 26.
+ */
+int nt36672a_lcd_gamma_ctrl(int id, u32 backlightlevel)
+{
+	return 0;
+}
+
+int nt36672a_lcd_gamma_update(int id)
+{
+	return 0;
+}
diff --git a/drivers/video/fbdev/exynos/dpu20/panels/nt36672a_mipi_lcd.c b/drivers/video/fbdev/exynos/dpu20/panels/nt36672a_mipi_lcd.c
new file mode 100644
index 000000000000..5550f0c02b8e
--- /dev/null
+++ b/drivers/video/fbdev/exynos/dpu20/panels/nt36672a_mipi_lcd.c
@@ -0,0 +1,207 @@
+/* drivers/video/fbdev/exynos/decon_8890/panels/nt36672a_mipi_lcd.c
+ *
+ * Samsung SoC MIPI LCD driver.
+ *
+ * Copyright (c) 2018 Samsung Electronics
+ *
+ * Hwangjae Lee, <hj-yo.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/delay.h>
+#include <linux/gpio.h>
+#include <video/mipi_display.h>
+#include <linux/platform_device.h>
+#include <linux/backlight.h>
+
+#include "../dsim.h"
+#include "lcd_ctrl.h"
+#include "decon_lcd.h"
+#include "nt36672a_param.h"
+
+#define MAX_BRIGHTNESS 255
+#define MIN_BRIGHTNESS 0
+#define DEFAULT_BRIGHTNESS 0
+
+static struct dsim_device *dsim_base;
+static struct backlight_device *bd;
+
+static int nt36672a_get_brightness(struct backlight_device *bd)
+{
+	return bd->props.brightness;
+}
+
+static int nt36672a_get_backlight_level(int brightness)
+{
+	int backlightlevel;
+
+	switch (brightness) {
+	case 0:
+		backlightlevel = 0;
+		break;
+	case 1 ... 29:
+		backlightlevel = 0;
+		break;
+	case 30 ... 34:
+		backlightlevel = 1;
+		break;
+	case 35 ... 39:
+		backlightlevel = 2;
+		break;
+	case 40 ... 44:
+		backlightlevel = 3;
+		break;
+	case 45 ... 49:
+		backlightlevel = 4;
+		break;
+	case 50 ... 54:
+		backlightlevel = 5;
+		break;
+	case 55 ... 64:
+		backlightlevel = 6;
+		break;
+	case 65 ... 74:
+		backlightlevel = 7;
+		break;
+	case 75 ... 83:
+		backlightlevel = 8;
+		break;
+	case 84 ... 93:
+		backlightlevel = 9;
+		break;
+	case 94 ... 103:
+		backlightlevel = 10;
+		break;
+	case 104 ... 113:
+		backlightlevel = 11;
+		break;
+	case 114 ... 122:
+		backlightlevel = 12;
+		break;
+	case 123 ... 132:
+		backlightlevel = 13;
+		break;
+	case 133 ... 142:
+		backlightlevel = 14;
+		break;
+	case 143 ... 152:
+		backlightlevel = 15;
+		break;
+	case 153 ... 162:
+		backlightlevel = 16;
+		break;
+	case 163 ... 171:
+		backlightlevel = 17;
+		break;
+	case 172 ... 181:
+		backlightlevel = 18;
+		break;
+	case 182 ... 191:
+		backlightlevel = 19;
+		break;
+	case 192 ... 201:
+		backlightlevel = 20;
+		break;
+	case 202 ... 210:
+		backlightlevel = 21;
+		break;
+	case 211 ... 220:
+		backlightlevel = 22;
+		break;
+	case 221 ... 230:
+		backlightlevel = 23;
+		break;
+	case 231 ... 240:
+		backlightlevel = 24;
+		break;
+	case 241 ... 250:
+		backlightlevel = 25;
+		break;
+	case 251 ... 255:
+		backlightlevel = 26;
+		break;
+	default:
+		backlightlevel = 12;
+		break;
+	}
+
+	return backlightlevel;
+}
+
+static int nt36672a_update_brightness(int brightness)
+{
+	int backlightlevel;
+
+	backlightlevel = nt36672a_get_backlight_level(brightness);
+
+	pr_info("brightness [%d]\n", brightness);
+	if (dsim_wr_data(0, MIPI_DSI_DCS_SHORT_WRITE_PARAM,
+				SEQ_CMD_0[0],
+				brightness) < 0)
+		dsim_err("fail to send SEQ_CMD_0 command.\n");
+
+	mdelay(12);
+	return 0;
+}
+
+static int nt36672a_set_brightness(struct backlight_device *bd)
+{
+	int brightness = bd->props.brightness;
+
+	if (brightness < MIN_BRIGHTNESS || brightness > MAX_BRIGHTNESS) {
+		pr_err("Brightness should be in the range of 0 ~ 255\n");
+		return -EINVAL;
+	}
+	nt36672a_update_brightness(brightness);
+
+	return 0;
+}
+
+static const struct backlight_ops nt36672a_backlight_ops = {
+	.get_brightness = nt36672a_get_brightness,
+	.update_status = nt36672a_set_brightness,
+};
+
+static int nt36672a_probe(struct dsim_device *dsim)
+{
+	dsim_base = dsim;
+
+	bd = backlight_device_register("backlight_0", NULL,
+		NULL, &nt36672a_backlight_ops, NULL);
+	if (IS_ERR(bd))
+		pr_err("failed to register backlight device!\n");
+
+	bd->props.max_brightness = MAX_BRIGHTNESS;
+	bd->props.brightness = DEFAULT_BRIGHTNESS;
+
+	return 0;
+}
+
+static int nt36672a_displayon(struct dsim_device *dsim)
+{
+	dsim_info("%s +\n", __func__);
+	nt36672a_lcd_init(dsim->id, &dsim->lcd_info);
+	nt36672a_lcd_enable(dsim->id);
+	dsim_info("%s -\n", __func__);
+	return 1;
+}
+
+static int nt36672a_suspend(struct dsim_device *dsim)
+{
+	return 0;
+}
+
+static int nt36672a_resume(struct dsim_device *dsim)
+{
+	return 0;
+}
+
+struct dsim_lcd_driver nt36672a_mipi_lcd_driver = {
+	.probe		= nt36672a_probe,
+	.displayon	= nt36672a_displayon,
+	.suspend	= nt36672a_suspend,
+	.resume		= nt36672a_resume,
+};
diff --git a/drivers/video/fbdev/exynos/dpu20/panels/nt36672a_param.h b/drivers/video/fbdev/exynos/dpu20/panels/nt36672a_param.h
new file mode 100644
index 000000000000..5973b30450e2
--- /dev/null
+++ b/drivers/video/fbdev/exynos/dpu20/panels/nt36672a_param.h
@@ -0,0 +1,44 @@
+/* linux/drivers/video/decon_display/nt36672a_param.h
+ *
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ *
+ * Hwangjae Lee <hj-yo.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 __NT36672A_PARAM_H__
+#define __NT36672A_PARAM_H__
+
+/* MIPI commands list */
+static const unsigned char SEQ_SLEEP_OUT[] = {
+	0x11,
+};
+
+static const unsigned char SEQ_DISPLAY_ON[] = {
+	0x29,
+};
+
+static const unsigned char SEQ_DISPLAY_OFF[] = {
+	0x28,
+};
+
+static const unsigned char SEQ_SLEEP_IN[] = {
+	0x10,
+};
+
+static const unsigned char SEQ_CMD_0[] = {
+	0x51, 0xFF
+};
+
+static const unsigned char SEQ_CMD_1[] = {
+	0x53, 0x24
+};
+
+static const unsigned char SEQ_CMD_2[] = {
+	0x55, 0x02
+};
+
+#endif /* __NT36672A_GAMMA_H__ */
-- 
2.20.1