From 8bf6e833a040c696bba37b6fb04db37d8123b06e Mon Sep 17 00:00:00 2001
From: Tonymac32 <tonymckahan@gmail.com>
Date: Sun, 5 Nov 2017 01:32:44 -0400
Subject: [PATCH] Tinker Board support RPI 7" DSI Display

Use device tree instead of platform machine definition, which had been preventing integrating support.
Display and touchscreen support both functional
---
 .../145_rockchip_tinker_touchscreen.patch     | 2744 +++++++++++++++++
 .../146_rockchip_tinker_dsi.patch             |  234 ++
 2 files changed, 2978 insertions(+)
 create mode 100644 patch/kernel/rockchip-default/145_rockchip_tinker_touchscreen.patch
 create mode 100644 patch/kernel/rockchip-default/146_rockchip_tinker_dsi.patch

diff --git a/patch/kernel/rockchip-default/145_rockchip_tinker_touchscreen.patch b/patch/kernel/rockchip-default/145_rockchip_tinker_touchscreen.patch
new file mode 100644
index 0000000000..cd26a8a6f6
--- /dev/null
+++ b/patch/kernel/rockchip-default/145_rockchip_tinker_touchscreen.patch
@@ -0,0 +1,2744 @@
+diff --git a/arch/arm/boot/dts/rk3288-miniarm.dts b/arch/arm/boot/dts/rk3288-miniarm.dts
+index d0c42be..3d7e74e 100644
+--- a/arch/arm/boot/dts/rk3288-miniarm.dts
++++ b/arch/arm/boot/dts/rk3288-miniarm.dts
+@@ -223,6 +223,15 @@
+ 	status = "ok";
+ };
+ 
++&mipi_dsi{
++	status = "okay";
++	mipi_panel: mipi-panel {
++		compatible ="asus,tc358762";
++		reg = <0>;
++		status = "okay";
++	};
++};
++
+ &gpu {
+ 	mali-supply = <&vdd_gpu>;
+ 	status = "okay";
+@@ -449,6 +458,16 @@
+ 
+ &i2c3 {
+ 	status = "okay";
++
++	tinker_ft5406:tinker_ft5406@38 {
++	    compatible = "tinker_ft5406";
++	    reg = <0x38>;
++	};
++
++	tinker_mcu:tinker_mcu@45 {
++	    compatible = "tinker_mcu";
++	    reg = <0x45>;
++	};
+ };
+ 
+ &i2c4 {
+diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
+index 7a597ee..85aac90 100644
+--- a/arch/arm/boot/dts/rk3288.dtsi
++++ b/arch/arm/boot/dts/rk3288.dtsi
+@@ -46,6 +46,7 @@
+ #include <dt-bindings/thermal/thermal.h>
+ #include <dt-bindings/power/rk3288-power.h>
+ #include <dt-bindings/soc/rockchip_boot-mode.h>
++#include <dt-bindings/display/drm_mipi_dsi.h>
+ #include "skeleton.dtsi"
+ 
+ / {
+@@ -1171,7 +1172,7 @@ gpu_thermal: gpu_thermal {
+ 	mipi_dsi: mipi@ff960000 {
+ 		compatible = "rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi";
+ 		reg = <0xff960000 0x4000>;
+-		interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
++		interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+ 		clocks = <&cru SCLK_MIPIDSI_24M>, <&cru PCLK_MIPI_DSI0>;
+ 		clock-names = "ref", "pclk";
+ 		rockchip,grf = <&grf>;
+diff --git a/drivers/Kconfig b/drivers/Kconfig
+index a1a41f2..5d85e38 100644
+--- a/drivers/Kconfig
++++ b/drivers/Kconfig
+@@ -204,4 +204,6 @@ source "drivers/rk_nand/Kconfig"
+ 
+ source "drivers/headset_observe/Kconfig"
+ 
++source "drivers/tinkerboard/Kconfig"
++
+ endmenu
+diff --git a/drivers/Makefile b/drivers/Makefile
+index eb16de1..dad01b6 100644
+--- a/drivers/Makefile
++++ b/drivers/Makefile
+@@ -176,3 +176,5 @@ obj-$(CONFIG_NVMEM)		+= nvmem/
+ obj-$(CONFIG_FPGA)		+= fpga/
+ obj-$(CONFIG_RK_NAND)		+= rk_nand/
+ obj-$(CONFIG_RK_HEADSET)	+= headset_observe/
++
++obj-y				+= tinkerboard/
+diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
+index 4868840..cf45d58 100644
+--- a/drivers/misc/Makefile
++++ b/drivers/misc/Makefile
+@@ -57,4 +57,5 @@ obj-$(CONFIG_GENWQE)		+= genwqe/
+ obj-$(CONFIG_ECHO)		+= echo/
+ obj-$(CONFIG_VEXPRESS_SYSCFG)	+= vexpress-syscfg.o
+ obj-$(CONFIG_CXL_BASE)		+= cxl/
+-obj-$(CONFIG_UID_CPUTIME) += uid_cputime.o
++obj-$(CONFIG_UID_CPUTIME) 	+= uid_cputime.o
++obj-$(CONFIG_TINKER_MCU)        += tinker_mcu.o
+diff --git a/drivers/misc/tinker_mcu.c b/drivers/misc/tinker_mcu.c
+new file mode 100644
+index 0000000..e1929ea
+--- /dev/null
++++ b/drivers/misc/tinker_mcu.c
+@@ -0,0 +1,232 @@
++/*
++ *
++ * Tinker board Touchscreen MCU driver.
++ *
++ * Copyright (c) 2016 ASUSTek Computer Inc.
++ * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
++ *
++ * This software is licensed under the terms of the GNU General Public
++ * License version 2, as published by the Free Software Foundation, and
++ * may be copied, distributed, and modified under those terms.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/slab.h>
++#include <linux/delay.h>
++#include <linux/i2c.h>
++#include <linux/module.h>
++#include <linux/workqueue.h>
++#include "tinker_mcu.h"
++
++static struct tinker_mcu_data *g_mcu_data;
++static int connected = 0;
++
++static int is_hex(char num)
++{
++	//0-9, a-f, A-F
++	if ((47 < num && num < 58) || (64 < num && num < 71) || (96 < num && num < 103))
++		return 1;
++	return 0;
++}
++
++static int string_to_byte(const char *source, unsigned char *destination, int size)
++{
++	int i = 0, counter = 0;
++	char c[3] = {0};
++	unsigned char bytes;
++
++	if (size%2 == 1)
++		return -EINVAL;
++
++	for(i = 0; i < size; i++){
++		if(!is_hex(source[i])) {
++			return -EINVAL;
++		}
++		if(0 == i%2){
++			c[0] = source[i];
++			c[1] = source[i+1];
++			sscanf(c, "%hhx", &bytes);
++			destination[counter] = bytes;
++			counter++;
++		}
++	}
++	return 0;
++}
++
++static int send_cmds(struct i2c_client *client, const char *buf)
++{
++	int ret, size = strlen(buf);
++	unsigned char byte_cmd[size/2];
++
++	if ((size%2) != 0) {
++		LOG_ERR("size should be even\n");
++		return -EINVAL;
++	}
++
++	LOG_INFO("%s\n", buf);
++
++	string_to_byte(buf, byte_cmd, size);
++
++	ret = i2c_master_send(client, byte_cmd, size/2);
++	if (ret <= 0) {
++		LOG_ERR("send command failed, ret = %d\n", ret);
++		return ret!=0 ? ret : -ECOMM;
++	}
++	msleep(20);
++	return 0;
++}
++
++static int recv_cmds(struct i2c_client *client, char *buf, int size)
++{
++	int ret;
++
++	ret = i2c_master_recv(client, buf, size);
++	if (ret <= 0) {
++		LOG_ERR("receive commands failed, %d\n", ret);
++		return ret!=0 ? ret : -ECOMM;
++	}
++	msleep(20);
++	return 0;
++}
++
++static int init_cmd_check(struct tinker_mcu_data *mcu_data)
++{
++	int ret;
++	char recv_buf[1] = {0};
++
++	ret = send_cmds(mcu_data->client, "80");
++	if (ret < 0)
++		goto error;
++
++	recv_cmds(mcu_data->client, recv_buf, 1);
++	if (ret < 0)
++		goto error;
++
++	LOG_INFO("recv_cmds: 0x%X\n", recv_buf[0]);
++	if (recv_buf[0] != 0xC3) {
++		LOG_ERR("read wrong info\n");
++		ret = -EINVAL;
++		goto error;
++
++	}
++	return 0;
++
++error:
++	return ret;
++}
++
++int tinker_mcu_screen_power_up(void)
++{
++	if (!connected)
++		return -ENODEV;
++
++	LOG_INFO("\n");
++	send_cmds(g_mcu_data->client, "8500");
++	msleep(800);
++	send_cmds(g_mcu_data->client, "8501");
++	send_cmds(g_mcu_data->client, "8104");
++
++	return 0;
++}
++EXPORT_SYMBOL_GPL(tinker_mcu_screen_power_up);
++
++int tinker_mcu_set_bright(int bright)
++{
++	unsigned char cmd[2];
++	int ret;
++
++	if (!connected)
++		return -ENODEV;
++
++	if (bright > 0xff || bright < 0)
++		return -EINVAL;
++
++	LOG_INFO("bright = 0x%x\n", bright);
++
++	cmd[0] = 0x86;
++	cmd[1] = bright;
++
++	ret = i2c_master_send(g_mcu_data->client, cmd, 2);
++	if (ret <= 0) {
++		LOG_ERR("send command failed, ret = %d\n", ret);
++		return ret != 0 ? ret : -ECOMM;
++	}
++
++	return 0;
++}
++EXPORT_SYMBOL_GPL(tinker_mcu_set_bright);
++
++int tinker_mcu_is_connected(void)
++{
++	return connected;
++}
++EXPORT_SYMBOL_GPL(tinker_mcu_is_connected);
++
++static int tinker_mcu_probe(struct i2c_client *client,
++			const struct i2c_device_id *id)
++{
++	struct tinker_mcu_data *mcu_data;
++	int ret;
++
++	LOG_INFO("address = 0x%x\n", client->addr);
++
++	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
++		LOG_ERR("I2C check functionality failed\n");
++		return -ENODEV;
++	}
++
++	mcu_data = kzalloc(sizeof(struct tinker_mcu_data), GFP_KERNEL);
++	if (mcu_data == NULL) {
++		LOG_ERR("no memory for device\n");
++		return -ENOMEM;
++	}
++
++	mcu_data->client = client;
++	i2c_set_clientdata(client, mcu_data);
++	g_mcu_data = mcu_data;
++
++	ret = init_cmd_check(mcu_data);
++	if (ret < 0) {
++		LOG_ERR("init_cmd_check failed, %d\n", ret);
++		goto error;
++	}
++	connected = 1;
++
++	return 0;
++
++error:
++	kfree(mcu_data);
++	return ret;
++}
++
++static int tinker_mcu_remove(struct i2c_client *client)
++{
++	struct tinker_mcu_data *mcu_data = i2c_get_clientdata(client);
++	connected = 0;
++	kfree(mcu_data);
++	return 0;
++}
++
++static const struct i2c_device_id tinker_mcu_id[] = {
++	{"tinker_mcu", 0},
++	{},
++};
++
++static struct i2c_driver tinker_mcu_driver = {
++	.driver = {
++		.name = "tinker_mcu",
++	},
++	.probe = tinker_mcu_probe,
++	.remove = tinker_mcu_remove,
++	.id_table = tinker_mcu_id,
++};
++module_i2c_driver(tinker_mcu_driver);
++
++MODULE_DESCRIPTION("Tinker Board TouchScreen MCU driver");
++MODULE_LICENSE("GPL v2");
+\ No newline at end of file
+diff --git a/drivers/misc/tinker_mcu.h b/drivers/misc/tinker_mcu.h
+new file mode 100644
+index 0000000..2a96ac1
+--- /dev/null
++++ b/drivers/misc/tinker_mcu.h
+@@ -0,0 +1,14 @@
++#ifndef _TINKER_MCU_H_
++#define _TINKER_MCU_H_
++
++#define LOG_INFO(fmt,arg...) pr_info("tinker-mcu: %s: "fmt, __func__, ##arg);
++#define LOG_ERR(fmt,arg...) pr_err("tinker-mcu: %s: "fmt, __func__, ##arg);
++
++#define MAX_I2C_LEN 255
++
++struct tinker_mcu_data {
++	struct device *dev;
++	struct i2c_client *client;
++};
++
++#endif
+\ No newline at end of file
+diff --git a/drivers/tinkerboard/Kconfig b/drivers/tinkerboard/Kconfig
+new file mode 100644
+index 0000000..660b55b
+--- /dev/null
++++ b/drivers/tinkerboard/Kconfig
+@@ -0,0 +1 @@
++source "drivers/tinkerboard/dsi/Kconfig"
+\ No newline at end of file
+diff --git a/drivers/tinkerboard/Makefile b/drivers/tinkerboard/Makefile
+new file mode 100644
+index 0000000..3288d03
+--- /dev/null
++++ b/drivers/tinkerboard/Makefile
+@@ -0,0 +1 @@
++obj-y	+= dsi/
+\ No newline at end of file
+diff --git a/drivers/tinkerboard/dsi/Kconfig b/drivers/tinkerboard/dsi/Kconfig
+new file mode 100644
+index 0000000..03027f5
+--- /dev/null
++++ b/drivers/tinkerboard/dsi/Kconfig
+@@ -0,0 +1,33 @@
++config DRM_PANEL_TOSHIBA_TC358762
++	tristate "support for toshiba tc358762"
++	depends on OF && I2C
++	depends on BACKLIGHT_CLASS_DEVICE
++	select VIDEOMODE_HELPERS
++	help
++	  Say Y here if you want to enable support for toshiba tc358762 bridge.
++	  To compile this driver as a module, choose M here.
++
++config ROCKCHIP_DW_MIPI_DSI2
++	tristate "Rockchip specific extensions for Synopsys DW MIPI DSI"
++	depends on DRM_ROCKCHIP
++	depends on !ROCKCHIP_DW_MIPI_DSI
++	select DRM_MIPI_DSI
++	help
++	 This selects support for Rockchip SoC specific extensions
++	 for the Synopsys DesignWare HDMI driver. If you want to
++	 enable MIPI DSI on RK3288 based SoC, you should selet this
++	 option.
++
++config TINKER_MCU
++	tristate "tinker mcu"
++	default y
++	depends on I2C
++	help
++		Control the power of touch screen for tinker board.
++
++config TOUCHSCREEN_TINKER_FT5406
++	tristate "tinker ft5406"
++	default y
++	depends on I2C
++	help
++Control ft5406 touch ic.
+\ No newline at end of file
+diff --git a/drivers/tinkerboard/dsi/Makefile b/drivers/tinkerboard/dsi/Makefile
+new file mode 100644
+index 0000000..378ebf5
+--- /dev/null
++++ b/drivers/tinkerboard/dsi/Makefile
+@@ -0,0 +1,4 @@
++obj-$(CONFIG_DRM_PANEL_TOSHIBA_TC358762) += panel-toshiba-tc358762.o
++obj-$(CONFIG_ROCKCHIP_DW_MIPI_DSI2) += dw-mipi-dsi.o
++#obj-$(CONFIG_TINKER_MCU)	+= tinker_mcu.o
++obj-$(CONFIG_TOUCHSCREEN_TINKER_FT5406)	+= tinker_ft5406.o
+\ No newline at end of file
+diff --git a/drivers/tinkerboard/dsi/dw-mipi-dsi.c b/drivers/tinkerboard/dsi/dw-mipi-dsi.c
+new file mode 100644
+index 0000000..c67786d
+--- /dev/null
++++ b/drivers/tinkerboard/dsi/dw-mipi-dsi.c
+@@ -0,0 +1,1295 @@
++/*
++ * Copyright (c) 2016, Fuzhou Rockchip Electronics Co., Ltd
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ */
++#include <linux/clk.h>
++#include <linux/component.h>
++#include <linux/iopoll.h>
++#include <linux/math64.h>
++#include <linux/module.h>
++#include <linux/of_device.h>
++#include <linux/pm_runtime.h>
++#include <linux/regmap.h>
++#include <linux/mfd/syscon.h>
++#include <drm/drm_atomic_helper.h>
++#include <drm/drm_crtc.h>
++#include <drm/drm_crtc_helper.h>
++#include <drm/drm_mipi_dsi.h>
++#include <drm/drm_of.h>
++#include <drm/drm_panel.h>
++#include <drm/drmP.h>
++#include <video/mipi_display.h>
++
++#include "../../gpu/drm/rockchip/rockchip_drm_drv.h"
++#include "../../gpu/drm/rockchip/rockchip_drm_vop.h"
++
++#define DRIVER_NAME    "dw-mipi-dsi"
++
++#define RK3288_GRF_SOC_CON6		0x025c
++#define RK3288_DSI0_SEL_VOP_LIT		BIT(6)
++#define RK3288_DSI1_SEL_VOP_LIT		BIT(9)
++
++#define RK3399_GRF_SOC_CON19		0x6250
++#define RK3399_DSI0_SEL_VOP_LIT		BIT(0)
++#define RK3399_DSI1_SEL_VOP_LIT		BIT(4)
++
++/* disable turnrequest, turndisable, forcetxstopmode, forcerxmode */
++#define RK3399_GRF_SOC_CON22		0x6258
++#define RK3399_GRF_DSI_MODE		0xffff0000
++
++#define DSI_VERSION			0x00
++#define DSI_PWR_UP			0x04
++#define RESET				0
++#define POWERUP				BIT(0)
++
++#define DSI_CLKMGR_CFG			0x08
++#define TO_CLK_DIVIDSION(div)		(((div) & 0xff) << 8)
++#define TX_ESC_CLK_DIVIDSION(div)	(((div) & 0xff) << 0)
++
++#define DSI_DPI_VCID			0x0c
++#define DPI_VID(vid)			(((vid) & 0x3) << 0)
++
++#define DSI_DPI_COLOR_CODING		0x10
++#define EN18_LOOSELY			BIT(8)
++#define DPI_COLOR_CODING_16BIT_1	0x0
++#define DPI_COLOR_CODING_16BIT_2	0x1
++#define DPI_COLOR_CODING_16BIT_3	0x2
++#define DPI_COLOR_CODING_18BIT_1	0x3
++#define DPI_COLOR_CODING_18BIT_2	0x4
++#define DPI_COLOR_CODING_24BIT		0x5
++
++#define DSI_DPI_CFG_POL			0x14
++#define COLORM_ACTIVE_LOW		BIT(4)
++#define SHUTD_ACTIVE_LOW		BIT(3)
++#define HSYNC_ACTIVE_LOW		BIT(2)
++#define VSYNC_ACTIVE_LOW		BIT(1)
++#define DATAEN_ACTIVE_LOW		BIT(0)
++
++#define DSI_DPI_LP_CMD_TIM		0x18
++#define OUTVACT_LPCMD_TIME(p)		(((p) & 0xff) << 16)
++#define INVACT_LPCMD_TIME(p)		((p) & 0xff)
++
++#define DSI_DBI_CFG			0x20
++#define DSI_DBI_CMDSIZE			0x28
++
++#define DSI_PCKHDL_CFG			0x2c
++#define EN_CRC_RX			BIT(4)
++#define EN_ECC_RX			BIT(3)
++#define EN_BTA				BIT(2)
++#define EN_EOTP_RX			BIT(1)
++#define EN_EOTP_TX			BIT(0)
++
++#define DSI_MODE_CFG			0x34
++#define ENABLE_VIDEO_MODE		0
++#define ENABLE_CMD_MODE			BIT(0)
++
++#define DSI_VID_MODE_CFG		0x38
++#define FRAME_BTA_ACK			BIT(14)
++#define ENABLE_LOW_POWER		(0x3f << 8)
++#define ENABLE_LOW_POWER_MASK		(0x3f << 8)
++#define VID_MODE_TYPE_BURST_SYNC_PULSES	0x0
++#define VID_MODE_TYPE_BURST_SYNC_EVENTS	0x1
++#define VID_MODE_TYPE_BURST		0x2
++
++#define DSI_VID_PKT_SIZE		0x3c
++#define VID_PKT_SIZE(p)			(((p) & 0x3fff) << 0)
++#define VID_PKT_MAX_SIZE		0x3fff
++
++#define DSI_VID_NUM_CHUMKS		0x40
++#define DSI_VID_NULL_PKT_SIZE		0x44
++#define DSI_VID_HSA_TIME		0x48
++#define DSI_VID_HBP_TIME		0x4c
++#define DSI_VID_HLINE_TIME		0x50
++#define DSI_VID_VSA_LINES		0x54
++#define DSI_VID_VBP_LINES		0x58
++#define DSI_VID_VFP_LINES		0x5c
++#define DSI_VID_VACTIVE_LINES		0x60
++#define DSI_CMD_MODE_CFG		0x68
++#define MAX_RD_PKT_SIZE_LP		BIT(24)
++#define DCS_LW_TX_LP			BIT(19)
++#define DCS_SR_0P_TX_LP			BIT(18)
++#define DCS_SW_1P_TX_LP			BIT(17)
++#define DCS_SW_0P_TX_LP			BIT(16)
++#define GEN_LW_TX_LP			BIT(14)
++#define GEN_SR_2P_TX_LP			BIT(13)
++#define GEN_SR_1P_TX_LP			BIT(12)
++#define GEN_SR_0P_TX_LP			BIT(11)
++#define GEN_SW_2P_TX_LP			BIT(10)
++#define GEN_SW_1P_TX_LP			BIT(9)
++#define GEN_SW_0P_TX_LP			BIT(8)
++#define EN_ACK_RQST			BIT(1)
++#define EN_TEAR_FX			BIT(0)
++
++#define CMD_MODE_ALL_LP			(MAX_RD_PKT_SIZE_LP | \
++					 DCS_LW_TX_LP | \
++					 DCS_SR_0P_TX_LP | \
++					 DCS_SW_1P_TX_LP | \
++					 DCS_SW_0P_TX_LP | \
++					 GEN_LW_TX_LP | \
++					 GEN_SR_2P_TX_LP | \
++					 GEN_SR_1P_TX_LP | \
++					 GEN_SR_0P_TX_LP | \
++					 GEN_SW_2P_TX_LP | \
++					 GEN_SW_1P_TX_LP | \
++					 GEN_SW_0P_TX_LP)
++
++#define DSI_GEN_HDR			0x6c
++#define GEN_HDATA(data)			(((data) & 0xffff) << 8)
++#define GEN_HDATA_MASK			(0xffff << 8)
++#define GEN_HTYPE(type)			(((type) & 0xff) << 0)
++#define GEN_HTYPE_MASK			0xff
++
++#define DSI_GEN_PLD_DATA		0x70
++
++#define DSI_CMD_PKT_STATUS		0x74
++#define GEN_CMD_EMPTY			BIT(0)
++#define GEN_CMD_FULL			BIT(1)
++#define GEN_PLD_W_EMPTY			BIT(2)
++#define GEN_PLD_W_FULL			BIT(3)
++#define GEN_PLD_R_EMPTY			BIT(4)
++#define GEN_PLD_R_FULL			BIT(5)
++#define GEN_RD_CMD_BUSY			BIT(6)
++
++#define DSI_TO_CNT_CFG			0x78
++#define HSTX_TO_CNT(p)			(((p) & 0xffff) << 16)
++#define LPRX_TO_CNT(p)			((p) & 0xffff)
++
++#define DSI_BTA_TO_CNT			0x8c
++#define DSI_LPCLK_CTRL			0x94
++#define AUTO_CLKLANE_CTRL		BIT(1)
++#define PHY_TXREQUESTCLKHS		BIT(0)
++
++#define DSI_PHY_TMR_LPCLK_CFG		0x98
++#define PHY_CLKHS2LP_TIME(lbcc)		(((lbcc) & 0x3ff) << 16)
++#define PHY_CLKLP2HS_TIME(lbcc)		((lbcc) & 0x3ff)
++
++#define DSI_PHY_TMR_CFG			0x9c
++#define PHY_HS2LP_TIME(lbcc)		(((lbcc) & 0xff) << 24)
++#define PHY_LP2HS_TIME(lbcc)		(((lbcc) & 0xff) << 16)
++#define MAX_RD_TIME(lbcc)		((lbcc) & 0x7fff)
++
++#define DSI_PHY_RSTZ			0xa0
++#define PHY_DISFORCEPLL			0
++#define PHY_ENFORCEPLL			BIT(3)
++#define PHY_DISABLECLK			0
++#define PHY_ENABLECLK			BIT(2)
++#define PHY_RSTZ			0
++#define PHY_UNRSTZ			BIT(1)
++#define PHY_SHUTDOWNZ			0
++#define PHY_UNSHUTDOWNZ			BIT(0)
++
++#define DSI_PHY_IF_CFG			0xa4
++#define N_LANES(n)			((((n) - 1) & 0x3) << 0)
++#define PHY_STOP_WAIT_TIME(cycle)	(((cycle) & 0xff) << 8)
++
++#define DSI_PHY_STATUS			0xb0
++#define LOCK				BIT(0)
++#define STOP_STATE_CLK_LANE		BIT(2)
++
++#define DSI_PHY_TST_CTRL0		0xb4
++#define PHY_TESTCLK			BIT(1)
++#define PHY_UNTESTCLK			0
++#define PHY_TESTCLR			BIT(0)
++#define PHY_UNTESTCLR			0
++
++#define DSI_PHY_TST_CTRL1		0xb8
++#define PHY_TESTEN			BIT(16)
++#define PHY_UNTESTEN			0
++#define PHY_TESTDOUT(n)			(((n) & 0xff) << 8)
++#define PHY_TESTDIN(n)			(((n) & 0xff) << 0)
++
++#define DSI_INT_ST0			0xbc
++#define DSI_INT_ST1			0xc0
++#define DSI_INT_MSK0			0xc4
++#define DSI_INT_MSK1			0xc8
++
++#define PHY_STATUS_TIMEOUT_US		10000
++#define CMD_PKT_STATUS_TIMEOUT_US	20000
++
++#define BYPASS_VCO_RANGE	BIT(7)
++#define VCO_RANGE_CON_SEL(val)	(((val) & 0x7) << 3)
++#define VCO_IN_CAP_CON_DEFAULT	(0x0 << 1)
++#define VCO_IN_CAP_CON_LOW	(0x1 << 1)
++#define VCO_IN_CAP_CON_HIGH	(0x2 << 1)
++#define REF_BIAS_CUR_SEL	BIT(0)
++
++#define CP_CURRENT_3MA		BIT(3)
++#define CP_PROGRAM_EN		BIT(7)
++#define LPF_PROGRAM_EN		BIT(6)
++#define LPF_RESISTORS_20_KOHM	0
++
++#define HSFREQRANGE_SEL(val)	(((val) & 0x3f) << 1)
++
++#define INPUT_DIVIDER(val)	((val - 1) & 0x7f)
++#define LOW_PROGRAM_EN		0
++#define HIGH_PROGRAM_EN		BIT(7)
++#define LOOP_DIV_LOW_SEL(val)	((val - 1) & 0x1f)
++#define LOOP_DIV_HIGH_SEL(val)	(((val - 1) >> 5) & 0x1f)
++#define PLL_LOOP_DIV_EN		BIT(5)
++#define PLL_INPUT_DIV_EN	BIT(4)
++
++#define POWER_CONTROL		BIT(6)
++#define INTERNAL_REG_CURRENT	BIT(3)
++#define BIAS_BLOCK_ON		BIT(2)
++#define BANDGAP_ON		BIT(0)
++
++#define TER_RESISTOR_HIGH	BIT(7)
++#define	TER_RESISTOR_LOW	0
++#define LEVEL_SHIFTERS_ON	BIT(6)
++#define TER_CAL_DONE		BIT(5)
++#define SETRD_MAX		(0x0 << 2)
++#define POWER_MANAGE		BIT(1)
++#define TER_RESISTORS_ON	BIT(0)
++
++#define BIASEXTR_SEL(val)	((val) & 0x7)
++#define BANDGAP_SEL(val)	((val) & 0x7)
++#define TLP_PROGRAM_EN		BIT(7)
++#define THS_PRE_PROGRAM_EN	BIT(7)
++#define THS_ZERO_PROGRAM_EN	BIT(6)
++
++enum {
++	BANDGAP_97_07,
++	BANDGAP_98_05,
++	BANDGAP_99_02,
++	BANDGAP_100_00,
++	BANDGAP_93_17,
++	BANDGAP_94_15,
++	BANDGAP_95_12,
++	BANDGAP_96_10,
++};
++
++enum {
++	BIASEXTR_87_1,
++	BIASEXTR_91_5,
++	BIASEXTR_95_9,
++	BIASEXTR_100,
++	BIASEXTR_105_94,
++	BIASEXTR_111_88,
++	BIASEXTR_118_8,
++	BIASEXTR_127_7,
++};
++
++struct dw_mipi_dsi_plat_data {
++	u32 dsi0_en_bit;
++	u32 dsi1_en_bit;
++	u32 grf_switch_reg;
++	u32 grf_dsi0_mode;
++	u32 grf_dsi0_mode_reg;
++	unsigned int max_data_lanes;
++	enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
++					   struct drm_display_mode *mode);
++};
++
++struct dw_mipi_dsi {
++	struct drm_encoder encoder;
++	struct drm_connector connector;
++	struct mipi_dsi_host dsi_host;
++	struct drm_panel *panel;
++	struct device *dev;
++	struct regmap *grf_regmap;
++	void __iomem *base;
++
++	struct clk *pllref_clk;
++	struct clk *pclk;
++	struct clk *phy_cfg_clk;
++
++	int dpms_mode;
++	unsigned int lane_mbps; /* per lane */
++	u32 channel;
++	u32 lanes;
++	u32 format;
++	u16 input_div;
++	u16 feedback_div;
++	struct drm_display_mode *mode;
++
++	const struct dw_mipi_dsi_plat_data *pdata;
++};
++
++enum dw_mipi_dsi_mode {
++	DW_MIPI_DSI_CMD_MODE,
++	DW_MIPI_DSI_VID_MODE,
++};
++
++struct dphy_pll_testdin_map {
++	unsigned int max_mbps;
++	u8 testdin;
++};
++
++/* The table is based on 27MHz DPHY pll reference clock. */
++static const struct dphy_pll_testdin_map dptdin_map[] = {
++	{  90, 0x00}, { 100, 0x10}, { 110, 0x20}, { 130, 0x01},
++	{ 140, 0x11}, { 150, 0x21}, { 170, 0x02}, { 180, 0x12},
++	{ 200, 0x22}, { 220, 0x03}, { 240, 0x13}, { 250, 0x23},
++	{ 270, 0x04}, { 300, 0x14}, { 330, 0x05}, { 360, 0x15},
++	{ 400, 0x25}, { 450, 0x06}, { 500, 0x16}, { 550, 0x07},
++	{ 600, 0x17}, { 650, 0x08}, { 700, 0x18}, { 750, 0x09},
++	{ 800, 0x19}, { 850, 0x29}, { 900, 0x39}, { 950, 0x0a},
++	{1000, 0x1a}, {1050, 0x2a}, {1100, 0x3a}, {1150, 0x0b},
++	{1200, 0x1b}, {1250, 0x2b}, {1300, 0x3b}, {1350, 0x0c},
++	{1400, 0x1c}, {1450, 0x2c}, {1500, 0x3c}
++};
++
++static int max_mbps_to_testdin(unsigned int max_mbps)
++{
++	int i;
++
++	for (i = 0; i < ARRAY_SIZE(dptdin_map); i++)
++		if (dptdin_map[i].max_mbps > max_mbps)
++			return dptdin_map[i].testdin;
++
++	return -EINVAL;
++}
++
++/*
++ * The controller should generate 2 frames before
++ * preparing the peripheral.
++ */
++static void dw_mipi_dsi_wait_for_two_frames(struct dw_mipi_dsi *dsi)
++{
++	int refresh, two_frames;
++
++	refresh = drm_mode_vrefresh(dsi->mode);
++	two_frames = DIV_ROUND_UP(MSEC_PER_SEC, refresh) * 2;
++	msleep(two_frames);
++}
++
++static inline struct dw_mipi_dsi *host_to_dsi(struct mipi_dsi_host *host)
++{
++	return container_of(host, struct dw_mipi_dsi, dsi_host);
++}
++
++static inline struct dw_mipi_dsi *con_to_dsi(struct drm_connector *con)
++{
++	return container_of(con, struct dw_mipi_dsi, connector);
++}
++
++static inline struct dw_mipi_dsi *encoder_to_dsi(struct drm_encoder *encoder)
++{
++	return container_of(encoder, struct dw_mipi_dsi, encoder);
++}
++static inline void dsi_write(struct dw_mipi_dsi *dsi, u32 reg, u32 val)
++{
++	writel(val, dsi->base + reg);
++}
++
++static inline u32 dsi_read(struct dw_mipi_dsi *dsi, u32 reg)
++{
++	return readl(dsi->base + reg);
++}
++
++static void dw_mipi_dsi_phy_write(struct dw_mipi_dsi *dsi, u8 test_code,
++				 u8 test_data)
++{
++	/*
++	 * With the falling edge on TESTCLK, the TESTDIN[7:0] signal content
++	 * is latched internally as the current test code. Test data is
++	 * programmed internally by rising edge on TESTCLK.
++	 */
++	dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLK | PHY_UNTESTCLR);
++
++	dsi_write(dsi, DSI_PHY_TST_CTRL1, PHY_TESTEN | PHY_TESTDOUT(0) |
++					  PHY_TESTDIN(test_code));
++
++	dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_UNTESTCLK | PHY_UNTESTCLR);
++
++	dsi_write(dsi, DSI_PHY_TST_CTRL1, PHY_UNTESTEN | PHY_TESTDOUT(0) |
++					  PHY_TESTDIN(test_data));
++
++	dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLK | PHY_UNTESTCLR);
++}
++
++static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
++{
++	int ret, testdin, vco, val;
++
++	vco = (dsi->lane_mbps < 200) ? 0 : (dsi->lane_mbps + 100) / 200;
++
++	testdin = max_mbps_to_testdin(dsi->lane_mbps);
++	if (testdin < 0) {
++		dev_err(dsi->dev,
++			"failed to get testdin for %dmbps lane clock\n",
++			dsi->lane_mbps);
++		return testdin;
++	}
++
++	if (!IS_ERR(dsi->phy_cfg_clk)) {
++		ret = clk_prepare_enable(dsi->phy_cfg_clk);
++		if (ret) {
++			dev_err(dsi->dev, "Failed to enable phy_cfg_clk\n");
++			return ret;
++		}
++	}
++
++	dw_mipi_dsi_phy_write(dsi, 0x10, BYPASS_VCO_RANGE |
++					 VCO_RANGE_CON_SEL(vco) |
++					 VCO_IN_CAP_CON_LOW |
++					 REF_BIAS_CUR_SEL);
++
++	dw_mipi_dsi_phy_write(dsi, 0x11, CP_CURRENT_3MA);
++	dw_mipi_dsi_phy_write(dsi, 0x12, CP_PROGRAM_EN | LPF_PROGRAM_EN |
++					 LPF_RESISTORS_20_KOHM);
++
++	dw_mipi_dsi_phy_write(dsi, 0x44, HSFREQRANGE_SEL(testdin));
++
++	dw_mipi_dsi_phy_write(dsi, 0x19, PLL_LOOP_DIV_EN | PLL_INPUT_DIV_EN);
++	dw_mipi_dsi_phy_write(dsi, 0x17, INPUT_DIVIDER(dsi->input_div));
++	dw_mipi_dsi_phy_write(dsi, 0x18, LOOP_DIV_LOW_SEL(dsi->feedback_div) |
++					 LOW_PROGRAM_EN);
++	dw_mipi_dsi_phy_write(dsi, 0x18, LOOP_DIV_HIGH_SEL(dsi->feedback_div) |
++					 HIGH_PROGRAM_EN);
++
++	dw_mipi_dsi_phy_write(dsi, 0x20, POWER_CONTROL | INTERNAL_REG_CURRENT |
++					 BIAS_BLOCK_ON | BANDGAP_ON);
++
++	dw_mipi_dsi_phy_write(dsi, 0x21, TER_RESISTOR_LOW | TER_CAL_DONE |
++					 SETRD_MAX | TER_RESISTORS_ON);
++	dw_mipi_dsi_phy_write(dsi, 0x21, TER_RESISTOR_HIGH | LEVEL_SHIFTERS_ON |
++					 SETRD_MAX | POWER_MANAGE |
++					 TER_RESISTORS_ON);
++
++	dw_mipi_dsi_phy_write(dsi, 0x22, LOW_PROGRAM_EN |
++					 BIASEXTR_SEL(BIASEXTR_127_7));
++	dw_mipi_dsi_phy_write(dsi, 0x22, HIGH_PROGRAM_EN |
++					 BANDGAP_SEL(BANDGAP_96_10));
++
++	dw_mipi_dsi_phy_write(dsi, 0x70, TLP_PROGRAM_EN | 0xf);
++	dw_mipi_dsi_phy_write(dsi, 0x71, THS_PRE_PROGRAM_EN | 0x2d);
++	dw_mipi_dsi_phy_write(dsi, 0x72, THS_ZERO_PROGRAM_EN | 0xa);
++
++	dsi_write(dsi, DSI_PHY_RSTZ, PHY_ENFORCEPLL | PHY_ENABLECLK |
++				     PHY_UNRSTZ | PHY_UNSHUTDOWNZ);
++
++	ret = readx_poll_timeout(readl, dsi->base + DSI_PHY_STATUS,
++				 val, val & LOCK, 1000, PHY_STATUS_TIMEOUT_US);
++	if (ret < 0) {
++		dev_err(dsi->dev, "failed to wait for phy lock state\n");
++		goto phy_init_end;
++	}
++
++	ret = readx_poll_timeout(readl, dsi->base + DSI_PHY_STATUS,
++				 val, val & STOP_STATE_CLK_LANE, 1000,
++				 PHY_STATUS_TIMEOUT_US);
++	if (ret < 0)
++		dev_err(dsi->dev,
++			"failed to wait for phy clk lane stop state\n");
++
++	dsi_write(dsi, DSI_LPCLK_CTRL, PHY_TXREQUESTCLKHS);
++
++phy_init_end:
++	if (!IS_ERR(dsi->phy_cfg_clk))
++		clk_disable_unprepare(dsi->phy_cfg_clk);
++
++	return ret;
++}
++
++static int dw_mipi_dsi_get_lane_bps(struct dw_mipi_dsi *dsi)
++{
++	unsigned int i, pre;
++	unsigned long mpclk, pllref, tmp;
++	unsigned int m = 1, n = 1, target_mbps = 1000;
++	unsigned int max_mbps = dptdin_map[ARRAY_SIZE(dptdin_map) - 1].max_mbps;
++	int bpp;
++
++	bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
++	if (bpp < 0) {
++		dev_err(dsi->dev, "failed to get bpp for pixel format %d\n",
++			dsi->format);
++		return bpp;
++	}
++
++	mpclk = DIV_ROUND_UP(dsi->mode->clock, MSEC_PER_SEC);
++	if (mpclk) {
++		/* take 1 / 0.9, since mbps must big than bandwidth of RGB */
++		tmp = mpclk * (bpp / dsi->lanes);
++		if (tmp < max_mbps)
++			target_mbps = tmp;
++		else
++			dev_err(dsi->dev, "DPHY clock frequency is out of range\n");
++	}
++
++	pllref = DIV_ROUND_UP(clk_get_rate(dsi->pllref_clk), USEC_PER_SEC);
++	tmp = pllref;
++
++	for (i = 1; i < 6; i++) {
++		pre = pllref / i;
++		if ((tmp > (target_mbps % pre)) && (target_mbps / pre < 512)) {
++			tmp = target_mbps % pre;
++			n = i;
++			m = target_mbps / pre;
++		}
++		if (tmp == 0)
++			break;
++	}
++
++	dsi->lane_mbps = pllref / n * m;
++	dsi->input_div = n;
++	dsi->feedback_div = m;
++
++	return 0;
++}
++
++static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host,
++				   struct mipi_dsi_device *device)
++{
++	struct dw_mipi_dsi *dsi = host_to_dsi(host);
++
++	if (device->lanes > dsi->pdata->max_data_lanes) {
++		dev_err(dsi->dev, "the number of data lanes(%u) is too many\n",
++				device->lanes);
++		return -EINVAL;
++	}
++
++	if (!(device->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) ||
++	    !(device->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)) {
++		dev_err(dsi->dev, "device mode is unsupported\n");
++		return -EINVAL;
++	}
++
++	dsi->lanes = device->lanes;
++	dsi->channel = device->channel;
++	dsi->format = device->format;
++	dsi->panel = of_drm_find_panel(device->dev.of_node);
++	if (!dsi->panel) {
++		DRM_ERROR("failed to find panel\n");
++		return -ENODEV;
++	}
++
++	return 0;
++}
++
++static int dw_mipi_dsi_host_detach(struct mipi_dsi_host *host,
++				   struct mipi_dsi_device *device)
++{
++	struct dw_mipi_dsi *dsi = host_to_dsi(host);
++
++	if (dsi->panel)
++		drm_panel_detach(dsi->panel);
++
++	dsi->panel = NULL;
++	return 0;
++}
++
++static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 val)
++{
++	int ret;
++	int sts = 0;
++
++	ret = readx_poll_timeout(readl, dsi->base + DSI_CMD_PKT_STATUS,
++				 sts, !(sts & GEN_CMD_FULL), 1000,
++				 CMD_PKT_STATUS_TIMEOUT_US);
++
++	if (ret < 0) {
++		dev_err(dsi->dev, "failed to get available command FIFO\n");
++		return ret;
++	}
++
++	dsi_write(dsi, DSI_GEN_HDR, val);
++
++	ret = readx_poll_timeout(readl, dsi->base + DSI_CMD_PKT_STATUS,
++				 sts, sts & (GEN_CMD_EMPTY | GEN_PLD_W_EMPTY),
++				 1000, CMD_PKT_STATUS_TIMEOUT_US);
++
++	if (ret < 0) {
++		dev_err(dsi->dev, "failed to write command FIFO\n");
++		return ret;
++	}
++
++	return 0;
++}
++
++static int dw_mipi_dsi_short_write(struct dw_mipi_dsi *dsi,
++				   const struct mipi_dsi_msg *msg)
++{
++	const u16 *tx_buf = msg->tx_buf;
++	u32 val = GEN_HDATA(*tx_buf) | GEN_HTYPE(msg->type);
++
++	if (msg->tx_len > 2) {
++		dev_err(dsi->dev, "too long tx buf length %zu for short write\n",
++			msg->tx_len);
++		return -EINVAL;
++	}
++
++	return dw_mipi_dsi_gen_pkt_hdr_write(dsi, val);
++}
++
++static int dw_mipi_dsi_long_write(struct dw_mipi_dsi *dsi,
++				  const struct mipi_dsi_msg *msg)
++{
++	const u32 *tx_buf = msg->tx_buf;
++	int len = msg->tx_len, pld_data_bytes = sizeof(*tx_buf), ret;
++	u32 val = GEN_HDATA(msg->tx_len) | GEN_HTYPE(msg->type);
++	u32 remainder = 0;
++	u32 sts = 0;
++
++	if (msg->tx_len < 3) {
++		dev_err(dsi->dev, "wrong tx buf length %zu for long write\n",
++			msg->tx_len);
++		return -EINVAL;
++	}
++
++	while (DIV_ROUND_UP(len, pld_data_bytes)) {
++		if (len < pld_data_bytes) {
++			memcpy(&remainder, tx_buf, len);
++			dsi_write(dsi, DSI_GEN_PLD_DATA, remainder);
++			len = 0;
++		} else {
++			dsi_write(dsi, DSI_GEN_PLD_DATA, *tx_buf);
++			tx_buf++;
++			len -= pld_data_bytes;
++		}
++
++		ret = readx_poll_timeout(readl, dsi->base + DSI_CMD_PKT_STATUS,
++					 sts, !(sts & GEN_PLD_W_FULL), 1000,
++					 CMD_PKT_STATUS_TIMEOUT_US);
++		if (ret < 0) {
++			dev_err(dsi->dev,
++				"failed to get available write payload FIFO\n");
++			return ret;
++		}
++	}
++
++	return dw_mipi_dsi_gen_pkt_hdr_write(dsi, val);
++}
++
++static ssize_t dw_mipi_dsi_host_transfer(struct mipi_dsi_host *host,
++					 const struct mipi_dsi_msg *msg)
++{
++	struct dw_mipi_dsi *dsi = host_to_dsi(host);
++	int ret;
++
++	switch (msg->type) {
++	case MIPI_DSI_DCS_SHORT_WRITE:
++	case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
++	case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:
++	case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM:
++	case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM:
++	case MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE:
++		ret = dw_mipi_dsi_short_write(dsi, msg);
++		break;
++	case MIPI_DSI_DCS_LONG_WRITE:
++	case MIPI_DSI_GENERIC_LONG_WRITE:
++		ret = dw_mipi_dsi_long_write(dsi, msg);
++		break;
++	default:
++		dev_err(dsi->dev, "unsupported message type\n");
++		ret = -EINVAL;
++	}
++
++	return ret;
++}
++
++static const struct mipi_dsi_host_ops dw_mipi_dsi_host_ops = {
++	.attach = dw_mipi_dsi_host_attach,
++	.detach = dw_mipi_dsi_host_detach,
++	.transfer = dw_mipi_dsi_host_transfer,
++};
++
++static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi)
++{
++	u32 val;
++
++	val = VID_MODE_TYPE_BURST | ENABLE_LOW_POWER;
++
++	dsi_write(dsi, DSI_VID_MODE_CFG, val);
++}
++
++static void dw_mipi_dsi_set_mode(struct dw_mipi_dsi *dsi,
++				 enum dw_mipi_dsi_mode mode)
++{
++	if (mode == DW_MIPI_DSI_CMD_MODE) {
++		dsi_write(dsi, DSI_PWR_UP, RESET);
++		dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
++		dsi_write(dsi, DSI_PWR_UP, POWERUP);
++	} else {
++		dsi_write(dsi, DSI_PWR_UP, RESET);
++		dsi_write(dsi, DSI_MODE_CFG, ENABLE_VIDEO_MODE);
++		dw_mipi_dsi_video_mode_config(dsi);
++		dsi_write(dsi, DSI_PWR_UP, POWERUP);
++	}
++}
++
++static void dw_mipi_dsi_disable(struct dw_mipi_dsi *dsi)
++{
++	dsi_write(dsi, DSI_PWR_UP, RESET);
++	dsi_write(dsi, DSI_PHY_RSTZ, PHY_RSTZ);
++}
++
++static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
++{
++	dsi_write(dsi, DSI_PWR_UP, RESET);
++	dsi_write(dsi, DSI_PHY_RSTZ, PHY_DISFORCEPLL | PHY_DISABLECLK
++		  | PHY_RSTZ | PHY_SHUTDOWNZ);
++	dsi_write(dsi, DSI_PWR_UP, POWERUP);
++	dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVIDSION(10) |
++		  TX_ESC_CLK_DIVIDSION(7));
++}
++
++static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi,
++				   struct drm_display_mode *mode)
++{
++	u32 val = 0, color = 0;
++
++	switch (dsi->format) {
++	case MIPI_DSI_FMT_RGB888:
++		color = DPI_COLOR_CODING_24BIT;
++		break;
++	case MIPI_DSI_FMT_RGB666:
++		color = DPI_COLOR_CODING_18BIT_2 | EN18_LOOSELY;
++		break;
++	case MIPI_DSI_FMT_RGB666_PACKED:
++		color = DPI_COLOR_CODING_18BIT_1;
++		break;
++	case MIPI_DSI_FMT_RGB565:
++		color = DPI_COLOR_CODING_16BIT_1;
++		break;
++	}
++
++	if (!(mode->flags & DRM_MODE_FLAG_PVSYNC))
++		val |= VSYNC_ACTIVE_LOW;
++	if (!(mode->flags & DRM_MODE_FLAG_PHSYNC))
++		val |= HSYNC_ACTIVE_LOW;
++
++	dsi_write(dsi, DSI_DPI_VCID, DPI_VID(dsi->channel));
++	dsi_write(dsi, DSI_DPI_COLOR_CODING, color);
++	dsi_write(dsi, DSI_DPI_CFG_POL, val);
++	dsi_write(dsi, DSI_DPI_LP_CMD_TIM, OUTVACT_LPCMD_TIME(4)
++		  | INVACT_LPCMD_TIME(4));
++}
++
++static void dw_mipi_dsi_packet_handler_config(struct dw_mipi_dsi *dsi)
++{
++	dsi_write(dsi, DSI_PCKHDL_CFG, EN_CRC_RX | EN_ECC_RX | EN_BTA);
++}
++
++static void dw_mipi_dsi_video_packet_config(struct dw_mipi_dsi *dsi,
++					    struct drm_display_mode *mode)
++{
++	dsi_write(dsi, DSI_VID_PKT_SIZE, VID_PKT_SIZE(mode->hdisplay));
++}
++
++static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi)
++{
++	dsi_write(dsi, DSI_TO_CNT_CFG, HSTX_TO_CNT(1000) | LPRX_TO_CNT(1000));
++	dsi_write(dsi, DSI_BTA_TO_CNT, 0xd00);
++	dsi_write(dsi, DSI_CMD_MODE_CFG, CMD_MODE_ALL_LP);
++	dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
++}
++
++/* Get lane byte clock cycles. */
++static u32 dw_mipi_dsi_get_hcomponent_lbcc(struct dw_mipi_dsi *dsi,
++					   u32 hcomponent)
++{
++	u32 frac, lbcc;
++
++	lbcc = hcomponent * dsi->lane_mbps * MSEC_PER_SEC / 8;
++
++	frac = lbcc % dsi->mode->clock;
++	lbcc = lbcc / dsi->mode->clock;
++	if (frac)
++		lbcc++;
++
++	return lbcc;
++}
++
++static void dw_mipi_dsi_line_timer_config(struct dw_mipi_dsi *dsi)
++{
++	u32 htotal, hsa, hbp, lbcc;
++	struct drm_display_mode *mode = dsi->mode;
++
++	htotal = mode->htotal;
++	hsa = mode->hsync_end - mode->hsync_start;
++	hbp = mode->htotal - mode->hsync_end;
++
++	lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, htotal);
++	dsi_write(dsi, DSI_VID_HLINE_TIME, lbcc);
++
++	lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, hsa);
++	dsi_write(dsi, DSI_VID_HSA_TIME, lbcc);
++
++	lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, hbp);
++	dsi_write(dsi, DSI_VID_HBP_TIME, lbcc);
++}
++
++static void dw_mipi_dsi_vertical_timing_config(struct dw_mipi_dsi *dsi)
++{
++	u32 vactive, vsa, vfp, vbp;
++	struct drm_display_mode *mode = dsi->mode;
++
++	vactive = mode->vdisplay;
++	vsa = mode->vsync_end - mode->vsync_start;
++	vfp = mode->vsync_start - mode->vdisplay;
++	vbp = mode->vtotal - mode->vsync_end;
++
++	dsi_write(dsi, DSI_VID_VACTIVE_LINES, vactive);
++	dsi_write(dsi, DSI_VID_VSA_LINES, vsa);
++	dsi_write(dsi, DSI_VID_VFP_LINES, vfp);
++	dsi_write(dsi, DSI_VID_VBP_LINES, vbp);
++}
++
++static void dw_mipi_dsi_dphy_timing_config(struct dw_mipi_dsi *dsi)
++{
++	dsi_write(dsi, DSI_PHY_TMR_CFG, PHY_HS2LP_TIME(0x40)
++		  | PHY_LP2HS_TIME(0x40) | MAX_RD_TIME(10000));
++
++	dsi_write(dsi, DSI_PHY_TMR_LPCLK_CFG, PHY_CLKHS2LP_TIME(0x40)
++		  | PHY_CLKLP2HS_TIME(0x40));
++}
++
++static void dw_mipi_dsi_dphy_interface_config(struct dw_mipi_dsi *dsi)
++{
++	dsi_write(dsi, DSI_PHY_IF_CFG, PHY_STOP_WAIT_TIME(0x20) |
++		  N_LANES(dsi->lanes));
++}
++
++static void dw_mipi_dsi_clear_err(struct dw_mipi_dsi *dsi)
++{
++	dsi_read(dsi, DSI_INT_ST0);
++	dsi_read(dsi, DSI_INT_ST1);
++	dsi_write(dsi, DSI_INT_MSK0, 0);
++	dsi_write(dsi, DSI_INT_MSK1, 0);
++}
++
++static void dw_mipi_dsi_encoder_mode_set(struct drm_encoder *encoder,
++					struct drm_display_mode *mode,
++					struct drm_display_mode *adjusted_mode)
++{
++	struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
++	int ret;
++
++	if (dsi->dpms_mode == DRM_MODE_DPMS_ON)
++		return;
++
++	drm_mode_copy(dsi->mode, adjusted_mode);
++
++	ret = dw_mipi_dsi_get_lane_bps(dsi);
++	if (ret < 0)
++		return;
++
++	if (clk_prepare_enable(dsi->pclk)) {
++		dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__);
++		return;
++	}
++
++	pm_runtime_get_sync(dsi->dev);
++
++	dw_mipi_dsi_init(dsi);
++	dw_mipi_dsi_dpi_config(dsi, mode);
++	dw_mipi_dsi_packet_handler_config(dsi);
++	dw_mipi_dsi_video_mode_config(dsi);
++	dw_mipi_dsi_video_packet_config(dsi, mode);
++	dw_mipi_dsi_command_mode_config(dsi);
++	dw_mipi_dsi_line_timer_config(dsi);
++	dw_mipi_dsi_vertical_timing_config(dsi);
++	dw_mipi_dsi_dphy_timing_config(dsi);
++	dw_mipi_dsi_dphy_interface_config(dsi);
++	dw_mipi_dsi_clear_err(dsi);
++	if (drm_panel_prepare(dsi->panel))
++		dev_err(dsi->dev, "failed to prepare panel\n");
++
++	clk_disable_unprepare(dsi->pclk);
++}
++
++static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
++{
++	struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
++
++	if (dsi->dpms_mode != DRM_MODE_DPMS_ON)
++		return;
++
++	drm_panel_disable(dsi->panel);
++
++	if (clk_prepare_enable(dsi->pclk)) {
++		dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__);
++		return;
++	}
++
++	dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_CMD_MODE);
++	drm_panel_unprepare(dsi->panel);
++	dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_VID_MODE);
++
++	/*
++	 * This is necessary to make sure the peripheral will be driven
++	 * normally when the display is enabled again later.
++	 */
++	msleep(120);
++
++	dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_CMD_MODE);
++	dw_mipi_dsi_disable(dsi);
++	pm_runtime_put(dsi->dev);
++	clk_disable_unprepare(dsi->pclk);
++	dsi->dpms_mode = DRM_MODE_DPMS_OFF;
++}
++
++static bool dw_mipi_dsi_encoder_mode_fixup(struct drm_encoder *encoder,
++					const struct drm_display_mode *mode,
++					struct drm_display_mode *adjusted_mode)
++{
++	return true;
++}
++
++static void dw_mipi_dsi_encoder_commit(struct drm_encoder *encoder)
++{
++	struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
++	const struct dw_mipi_dsi_plat_data *pdata = dsi->pdata;
++	int mux = drm_of_encoder_active_endpoint_id(dsi->dev->of_node, encoder);
++	u32 val;
++
++	if (clk_prepare_enable(dsi->pclk)) {
++		dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__);
++		return;
++	}
++
++	if (pdata->grf_dsi0_mode_reg)
++		regmap_write(dsi->grf_regmap, pdata->grf_dsi0_mode_reg,
++			     pdata->grf_dsi0_mode);
++
++	dw_mipi_dsi_phy_init(dsi);
++	dw_mipi_dsi_wait_for_two_frames(dsi);
++
++	drm_panel_enable(dsi->panel);
++
++	dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_VID_MODE);
++
++	clk_disable_unprepare(dsi->pclk);
++
++	if (mux)
++		val = pdata->dsi0_en_bit | (pdata->dsi0_en_bit << 16);
++	else
++		val = pdata->dsi0_en_bit << 16;
++
++	regmap_write(dsi->grf_regmap, pdata->grf_switch_reg, val);
++	dev_dbg(dsi->dev, "vop %s output to dsi0\n", (mux) ? "LIT" : "BIG");
++	dsi->dpms_mode = DRM_MODE_DPMS_ON;
++}
++
++static int
++dw_mipi_dsi_encoder_atomic_check(struct drm_encoder *encoder,
++				 struct drm_crtc_state *crtc_state,
++				 struct drm_connector_state *conn_state)
++{
++	struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
++	struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
++
++	switch (dsi->format) {
++	case MIPI_DSI_FMT_RGB888:
++		s->output_mode = ROCKCHIP_OUT_MODE_P888;
++		break;
++	case MIPI_DSI_FMT_RGB666:
++		s->output_mode = ROCKCHIP_OUT_MODE_P666;
++		break;
++	case MIPI_DSI_FMT_RGB565:
++		s->output_mode = ROCKCHIP_OUT_MODE_P565;
++		break;
++	default:
++		WARN_ON(1);
++		return -EINVAL;
++	}
++
++	s->output_type = DRM_MODE_CONNECTOR_DSI;
++
++	return 0;
++}
++
++static struct drm_encoder_helper_funcs
++dw_mipi_dsi_encoder_helper_funcs = {
++	.mode_fixup = dw_mipi_dsi_encoder_mode_fixup,
++	.commit = dw_mipi_dsi_encoder_commit,
++	.mode_set = dw_mipi_dsi_encoder_mode_set,
++	.disable = dw_mipi_dsi_encoder_disable,
++	.atomic_check = dw_mipi_dsi_encoder_atomic_check,
++};
++
++static struct drm_encoder_funcs dw_mipi_dsi_encoder_funcs = {
++	.destroy = drm_encoder_cleanup,
++};
++
++static int dw_mipi_dsi_connector_get_modes(struct drm_connector *connector)
++{
++	struct dw_mipi_dsi *dsi = con_to_dsi(connector);
++
++	return drm_panel_get_modes(dsi->panel);
++}
++
++static enum drm_mode_status dw_mipi_dsi_mode_valid(
++					struct drm_connector *connector,
++					struct drm_display_mode *mode)
++{
++	struct dw_mipi_dsi *dsi = con_to_dsi(connector);
++
++	enum drm_mode_status mode_status = MODE_OK;
++
++	if (dsi->pdata->mode_valid)
++		mode_status = dsi->pdata->mode_valid(connector, mode);
++
++	return mode_status;
++}
++
++static struct drm_encoder *dw_mipi_dsi_connector_best_encoder(
++					struct drm_connector *connector)
++{
++	struct dw_mipi_dsi *dsi = con_to_dsi(connector);
++
++	return &dsi->encoder;
++}
++
++static struct drm_connector_helper_funcs dw_mipi_dsi_connector_helper_funcs = {
++	.get_modes = dw_mipi_dsi_connector_get_modes,
++	.mode_valid = dw_mipi_dsi_mode_valid,
++	.best_encoder = dw_mipi_dsi_connector_best_encoder,
++};
++
++static enum drm_connector_status
++dw_mipi_dsi_detect(struct drm_connector *connector, bool force)
++{
++	return connector_status_connected;
++}
++
++static void dw_mipi_dsi_drm_connector_destroy(struct drm_connector *connector)
++{
++	drm_connector_unregister(connector);
++	drm_connector_cleanup(connector);
++}
++
++static struct drm_connector_funcs dw_mipi_dsi_atomic_connector_funcs = {
++	.dpms = drm_atomic_helper_connector_dpms,
++	.fill_modes = drm_helper_probe_single_connector_modes,
++	.detect = dw_mipi_dsi_detect,
++	.destroy = dw_mipi_dsi_drm_connector_destroy,
++	.reset = drm_atomic_helper_connector_reset,
++	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
++	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
++};
++
++static int dw_mipi_dsi_register(struct drm_device *drm,
++				      struct dw_mipi_dsi *dsi)
++{
++	struct drm_encoder *encoder = &dsi->encoder;
++	struct drm_connector *connector = &dsi->connector;
++	struct device *dev = dsi->dev;
++	int ret;
++
++	encoder->possible_crtcs = drm_of_find_possible_crtcs(drm,
++							     dev->of_node);
++	/*
++	 * If we failed to find the CRTC(s) which this encoder is
++	 * supposed to be connected to, it's because the CRTC has
++	 * not been registered yet.  Defer probing, and hope that
++	 * the required CRTC is added later.
++	 */
++	if (encoder->possible_crtcs == 0)
++		return -EPROBE_DEFER;
++
++	drm_encoder_helper_add(&dsi->encoder,
++			       &dw_mipi_dsi_encoder_helper_funcs);
++	ret = drm_encoder_init(drm, &dsi->encoder, &dw_mipi_dsi_encoder_funcs,
++			 DRM_MODE_ENCODER_DSI, NULL);
++	if (ret) {
++		dev_err(dev, "Failed to initialize encoder with drm\n");
++		return ret;
++	}
++
++	drm_connector_helper_add(connector,
++			&dw_mipi_dsi_connector_helper_funcs);
++
++	drm_connector_init(drm, &dsi->connector,
++			   &dw_mipi_dsi_atomic_connector_funcs,
++			   DRM_MODE_CONNECTOR_DSI);
++
++	drm_panel_attach(dsi->panel, &dsi->connector);
++
++	dsi->connector.port = dev->of_node;
++
++	drm_mode_connector_attach_encoder(connector, encoder);
++
++	return 0;
++}
++
++static int rockchip_mipi_parse_dt(struct dw_mipi_dsi *dsi)
++{
++	struct device_node *np = dsi->dev->of_node;
++
++	dsi->grf_regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
++	if (IS_ERR(dsi->grf_regmap)) {
++		dev_err(dsi->dev, "Unable to get rockchip,grf\n");
++		return PTR_ERR(dsi->grf_regmap);
++	}
++
++	return 0;
++}
++
++static struct dw_mipi_dsi_plat_data rk3288_mipi_dsi_drv_data = {
++	.dsi0_en_bit = RK3288_DSI0_SEL_VOP_LIT,
++	.dsi1_en_bit = RK3288_DSI1_SEL_VOP_LIT,
++	.grf_switch_reg = RK3288_GRF_SOC_CON6,
++	.max_data_lanes = 4,
++};
++
++static struct dw_mipi_dsi_plat_data rk3399_mipi_dsi_drv_data = {
++	.dsi0_en_bit = RK3399_DSI0_SEL_VOP_LIT,
++	.dsi1_en_bit = RK3399_DSI1_SEL_VOP_LIT,
++	.grf_switch_reg = RK3399_GRF_SOC_CON19,
++	.grf_dsi0_mode = RK3399_GRF_DSI_MODE,
++	.grf_dsi0_mode_reg = RK3399_GRF_SOC_CON22,
++	.max_data_lanes = 4,
++};
++
++static const struct of_device_id dw_mipi_dsi_dt_ids[] = {
++	{
++	 .compatible = "rockchip,rk3288-mipi-dsi",
++	 .data = &rk3288_mipi_dsi_drv_data,
++	},{
++	 .compatible = "rockchip,rk3399-mipi-dsi",
++	 .data = &rk3399_mipi_dsi_drv_data,
++	},
++	{ /* sentinel */ }
++};
++MODULE_DEVICE_TABLE(of, dw_mipi_dsi_dt_ids);
++
++extern int tinker_mcu_is_connected(void);
++static int dw_mipi_dsi_bind(struct device *dev, struct device *master,
++			     void *data)
++{
++	struct platform_device *pdev = to_platform_device(dev);
++	struct drm_device *drm = data;
++	struct dw_mipi_dsi *dsi = dev_get_drvdata(dev);
++	struct resource *res;
++	int ret;
++
++	dsi->dpms_mode = DRM_MODE_DPMS_OFF;
++
++	if (!dsi->panel)
++		return -EPROBE_DEFER;
++
++	ret = rockchip_mipi_parse_dt(dsi);
++	if (ret)
++		return ret;
++
++	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (!res)
++		return -ENODEV;
++
++	dsi->base = devm_ioremap_resource(dev, res);
++	if (IS_ERR(dsi->base))
++		return PTR_ERR(dsi->base);
++
++	dsi->pllref_clk = devm_clk_get(dev, "ref");
++	if (IS_ERR(dsi->pllref_clk)) {
++		ret = PTR_ERR(dsi->pllref_clk);
++		dev_err(dev, "Unable to get pll reference clock: %d\n", ret);
++		return ret;
++	}
++
++	dsi->pclk = devm_clk_get(dev, "pclk");
++	if (IS_ERR(dsi->pclk)) {
++		ret = PTR_ERR(dsi->pclk);
++		dev_err(dev, "Unable to get pclk: %d\n", ret);
++		return ret;
++	}
++
++	dsi->phy_cfg_clk = devm_clk_get(dev, "phy_cfg");
++	if (IS_ERR(dsi->phy_cfg_clk))
++		dev_dbg(dev, "have not phy_cfg_clk\n");
++
++	ret = clk_prepare_enable(dsi->pllref_clk);
++	if (ret) {
++		dev_err(dev, "%s: Failed to enable pllref_clk\n", __func__);
++		return ret;
++	}
++
++	if(!tinker_mcu_is_connected()) {
++		pr_info("panel doesn't be connected\n");
++		goto err_pllref;
++	}
++
++	ret = dw_mipi_dsi_register(drm, dsi);
++	if (ret) {
++		dev_err(dev, "Failed to register mipi_dsi: %d\n", ret);
++		goto err_pllref;
++	}
++
++	dev_set_drvdata(dev, dsi);
++
++	pm_runtime_enable(dev);
++
++	return 0;
++
++err_pllref:
++	clk_disable_unprepare(dsi->pllref_clk);
++	return ret;
++}
++
++static void dw_mipi_dsi_unbind(struct device *dev, struct device *master,
++	void *data)
++{
++	struct dw_mipi_dsi *dsi = dev_get_drvdata(dev);
++
++	pm_runtime_disable(dev);
++	clk_disable_unprepare(dsi->pllref_clk);
++}
++
++static const struct component_ops dw_mipi_dsi_ops = {
++	.bind	= dw_mipi_dsi_bind,
++	.unbind	= dw_mipi_dsi_unbind,
++};
++
++static int dw_mipi_dsi_probe(struct platform_device *pdev)
++{
++	struct device *dev = &pdev->dev;
++	const struct of_device_id *of_id =
++			of_match_device(dw_mipi_dsi_dt_ids, dev);
++	const struct dw_mipi_dsi_plat_data *pdata = of_id->data;
++	struct dw_mipi_dsi *dsi;
++	int ret;
++
++	dsi = devm_kzalloc(&pdev->dev, sizeof(*dsi), GFP_KERNEL);
++	if (!dsi)
++		return -ENOMEM;
++
++	dsi->dev = dev;
++	dsi->pdata = pdata;
++	dsi->dsi_host.ops = &dw_mipi_dsi_host_ops;
++	dsi->dsi_host.dev = &pdev->dev;
++	dsi->mode = devm_kzalloc(&pdev->dev, sizeof(struct drm_display_mode), GFP_KERNEL);
++	if (!dsi)
++		return -ENOMEM;
++
++	ret = mipi_dsi_host_register(&dsi->dsi_host);
++	if (ret)
++		return ret;
++
++	platform_set_drvdata(pdev, dsi);
++	ret = component_add(&pdev->dev, &dw_mipi_dsi_ops);
++	if (ret)
++		mipi_dsi_host_unregister(&dsi->dsi_host);
++
++	return ret;
++}
++
++static int dw_mipi_dsi_remove(struct platform_device *pdev)
++{
++	struct dw_mipi_dsi *dsi = dev_get_drvdata(&pdev->dev);
++
++	if (dsi)
++		mipi_dsi_host_unregister(&dsi->dsi_host);
++	component_del(&pdev->dev, &dw_mipi_dsi_ops);
++	return 0;
++}
++
++static struct platform_driver dw_mipi_dsi_driver = {
++	.probe		= dw_mipi_dsi_probe,
++	.remove		= dw_mipi_dsi_remove,
++	.driver		= {
++		.of_match_table = dw_mipi_dsi_dt_ids,
++		.name	= DRIVER_NAME,
++	},
++};
++module_platform_driver(dw_mipi_dsi_driver);
++
++MODULE_DESCRIPTION("ROCKCHIP MIPI DSI host controller driver");
++MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:" DRIVER_NAME);
+\ No newline at end of file
+diff --git a/drivers/tinkerboard/dsi/panel-toshiba-tc358762.c b/drivers/tinkerboard/dsi/panel-toshiba-tc358762.c
+new file mode 100644
+index 0000000..458078c
+--- /dev/null
++++ b/drivers/tinkerboard/dsi/panel-toshiba-tc358762.c
+@@ -0,0 +1,620 @@
++/*
++ * Copyright (C) 2013, NVIDIA Corporation.  All rights reserved.
++ *
++ * Permission is hereby granted, free of charge, to any person obtaining a
++ * copy of this software and associated documentation files (the "Software"),
++ * to deal in the Software without restriction, including without limitation
++ * the rights to use, copy, modify, merge, publish, distribute, sub license,
++ * and/or sell copies of the Software, and to permit persons to whom the
++ * Software is furnished to do so, subject to the following conditions:
++ *
++ * The above copyright notice and this permission notice (including the
++ * next paragraph) shall be included in all copies or substantial portions
++ * of the Software.
++ *
++ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
++ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
++ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
++ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
++ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
++ * DEALINGS IN THE SOFTWARE.
++ */
++
++#include <linux/backlight.h>
++#include <linux/gpio/consumer.h>
++#include <linux/module.h>
++#include <linux/of_platform.h>
++#include <linux/platform_device.h>
++#include <linux/regulator/consumer.h>
++
++#include <drm/drmP.h>
++#include <drm/drm_crtc.h>
++#include <drm/drm_mipi_dsi.h>
++#include <drm/drm_panel.h>
++
++#include <video/display_timing.h>
++#include <video/of_display_timing.h>
++#include <video/videomode.h>
++
++int trigger_bridge = 1;
++
++struct panel_desc {
++	const struct drm_display_mode *modes;
++	unsigned int num_modes;
++	const struct display_timing *timings;
++	unsigned int num_timings;
++
++	unsigned int bpc;
++
++	struct {
++		unsigned int width;
++		unsigned int height;
++	} size;
++
++	/**
++	 * @prepare: the time (in milliseconds) that it takes for the panel to
++	 *		become ready and start receiving video data
++	 * @enable: the time (in milliseconds) that it takes for the panel to
++	 *		display the first valid frame after starting to receive
++	 *		video data
++	 * @disable: the time (in milliseconds) that it takes for the panel to
++	 *		turn the display off (no content is visible)
++	 * @unprepare: the time (in milliseconds) that it takes for the panel
++	 *		to power itself down completely
++	 */
++	struct {
++		unsigned int prepare;
++		unsigned int enable;
++		unsigned int disable;
++		unsigned int unprepare;
++	} delay;
++
++	u32 bus_format;
++};
++
++struct tc358762 {
++	struct drm_panel base;
++	bool prepared;
++	bool enabled;
++
++	struct device *dev;
++	struct mipi_dsi_device *dsi;
++	const struct panel_desc *desc;
++
++	struct backlight_device *backlight;
++	struct regulator *supply;
++	struct i2c_adapter *ddc;
++
++	struct gpio_desc *enable_gpio;
++};
++
++static inline struct tc358762 *to_tc358762(struct drm_panel *panel)
++{
++	return container_of(panel, struct tc358762, base);
++}
++
++static int tc358762_get_fixed_modes(struct tc358762 *panel)
++{
++	struct drm_connector *connector = panel->base.connector;
++	struct drm_device *drm = panel->base.drm;
++	struct drm_display_mode *mode;
++	unsigned int i, num = 0;
++
++	if (!panel->desc)
++		return 0;
++
++	for (i = 0; i < panel->desc->num_timings; i++) {
++		const struct display_timing *dt = &panel->desc->timings[i];
++		struct videomode vm;
++
++		videomode_from_timing(dt, &vm);
++		mode = drm_mode_create(drm);
++		if (!mode) {
++			dev_err(drm->dev, "failed to add mode %ux%u\n",
++				dt->hactive.typ, dt->vactive.typ);
++			continue;
++		}
++
++		drm_display_mode_from_videomode(&vm, mode);
++		drm_mode_set_name(mode);
++
++		drm_mode_probed_add(connector, mode);
++		num++;
++	}
++
++	for (i = 0; i < panel->desc->num_modes; i++) {
++		const struct drm_display_mode *m = &panel->desc->modes[i];
++
++		mode = drm_mode_duplicate(drm, m);
++		if (!mode) {
++			dev_err(drm->dev, "failed to add mode %ux%u@%u\n",
++				m->hdisplay, m->vdisplay, m->vrefresh);
++			continue;
++		}
++
++		drm_mode_set_name(mode);
++
++		drm_mode_probed_add(connector, mode);
++		num++;
++	}
++
++	connector->display_info.bpc = panel->desc->bpc;
++	connector->display_info.width_mm = panel->desc->size.width;
++	connector->display_info.height_mm = panel->desc->size.height;
++	if (panel->desc->bus_format)
++		drm_display_info_set_bus_formats(&connector->display_info,
++						 &panel->desc->bus_format, 1);
++
++	return num;
++}
++
++static int tc358762_of_get_native_mode(struct tc358762 *panel)
++{
++	struct drm_connector *connector = panel->base.connector;
++	struct drm_device *drm = panel->base.drm;
++	struct drm_display_mode *mode;
++	struct device_node *timings_np;
++	int ret;
++
++	timings_np = of_get_child_by_name(panel->dev->of_node,
++					  "display-timings");
++	if (!timings_np) {
++		dev_dbg(panel->dev, "failed to find display-timings node\n");
++		return 0;
++	}
++
++	of_node_put(timings_np);
++	mode = drm_mode_create(drm);
++	if (!mode)
++		return 0;
++
++	ret = of_get_drm_display_mode(panel->dev->of_node, mode,
++					  OF_USE_NATIVE_MODE);
++	if (ret) {
++		dev_dbg(panel->dev, "failed to find dts display timings\n");
++		drm_mode_destroy(drm, mode);
++		return 0;
++	}
++
++	drm_mode_set_name(mode);
++	mode->type |= DRM_MODE_TYPE_PREFERRED;
++	drm_mode_probed_add(connector, mode);
++
++	return 1;
++}
++
++extern int tinker_mcu_set_bright(int bright);
++static int tc358762_disable(struct drm_panel *panel)
++{
++	struct tc358762 *p = to_tc358762(panel);
++
++	if (!p->enabled)
++		return 0;
++
++	printk("panel disable\n");
++
++	tinker_mcu_set_bright(0x00);
++
++	if (p->backlight) {
++		p->backlight->props.power = FB_BLANK_POWERDOWN;
++		backlight_update_status(p->backlight);
++	}
++
++	if (p->desc && p->desc->delay.disable)
++		msleep(p->desc->delay.disable);
++
++	p->enabled = false;
++
++	return 0;
++}
++
++static int tc358762_unprepare(struct drm_panel *panel)
++{
++	struct tc358762 *p = to_tc358762(panel);
++
++	if (!p->prepared)
++		return 0;
++
++	if (p->enable_gpio)
++		gpiod_direction_output(p->enable_gpio, 0);
++
++	regulator_disable(p->supply);
++
++	if (p->desc && p->desc->delay.unprepare)
++		msleep(p->desc->delay.unprepare);
++
++	p->prepared = false;
++
++	return 0;
++}
++
++static void tc358762_gen_write(struct mipi_dsi_device *dsi, const void *data, size_t len)
++{
++	int ret;
++
++	ret = mipi_dsi_generic_write(dsi, data, len);
++	if (ret < 0) {
++		dev_err(&dsi->dev, "failed to writing gen seq\n");
++	}
++}
++
++#define tc358762_gen_write_seq(dsi, seq...) \
++({\
++	static const u8 d[] = { seq };\
++	tc358762_gen_write(dsi, d, ARRAY_SIZE(d));\
++})
++
++static int tc358762_dsi_init(struct tc358762 *p)
++{
++	struct mipi_dsi_device *dsi = p->dsi;
++
++	tc358762_gen_write_seq(dsi, 0x10, 0x02, 0x03, 0x00, 0x00, 0x00);//LANE
++	tc358762_gen_write_seq(dsi, 0x64, 0x01, 0x0c, 0x00, 0x00, 0x00);//D0S_CLRSIPOCOUNT
++	tc358762_gen_write_seq(dsi, 0x68, 0x01, 0x0c, 0x00, 0x00, 0x00);//D1S_CLRSIPOCOUNT
++	tc358762_gen_write_seq(dsi, 0x44, 0x01, 0x00, 0x00, 0x00, 0x00);//D0S_ATMR
++	tc358762_gen_write_seq(dsi, 0x48, 0x01, 0x00, 0x00, 0x00, 0x00);//D1S_ATMR
++	tc358762_gen_write_seq(dsi, 0x14, 0x01, 0x15, 0x00, 0x00, 0x00);//LPTXTIMCNT
++	tc358762_gen_write_seq(dsi, 0x50, 0x04, 0x60, 0x00, 0x00, 0x00);//SPICMR/SPICTRL
++	tc358762_gen_write_seq(dsi, 0x20, 0x04, 0x52, 0x01, 0x10, 0x00);//PORT/LCDCTRL
++	tc358762_gen_write_seq(dsi, 0x24, 0x04, 0x14, 0x00, 0x1a, 0x00);//HBPR/HSR
++	tc358762_gen_write_seq(dsi, 0x28, 0x04, 0x20, 0x03, 0x69, 0x00);//HFPR/HDISP(*)
++	tc358762_gen_write_seq(dsi, 0x2c, 0x04, 0x02, 0x00, 0x15, 0x00);//VBFR/VSR
++	tc358762_gen_write_seq(dsi, 0x30, 0x04, 0xe0, 0x01, 0x07, 0x00);//VFPR/VDISP(*)
++	tc358762_gen_write_seq(dsi, 0x34, 0x04, 0x01, 0x00, 0x00, 0x00);//VFUEN
++	tc358762_gen_write_seq(dsi, 0x64, 0x04, 0x0f, 0x04, 0x00, 0x00);//SYSCTRL
++	tc358762_gen_write_seq(dsi, 0x04, 0x01, 0x01, 0x00, 0x00, 0x00);//STARTPPI
++	tc358762_gen_write_seq(dsi, 0x04, 0x02, 0x01, 0x00, 0x00, 0x00);//STARTDSI
++
++	usleep_range(10, 20);
++	return 0;
++}
++
++static int tc358762_prepare(struct drm_panel *panel)
++{
++	struct tc358762 *p = to_tc358762(panel);
++	int err;
++
++	if (p->prepared)
++		return 0;
++
++	err = regulator_enable(p->supply);
++	if (err < 0) {
++		dev_err(panel->dev, "failed to enable supply: %d\n", err);
++		return err;
++	}
++
++	if (p->enable_gpio)
++		gpiod_direction_output(p->enable_gpio, 1);
++
++	if (p->desc && p->desc->delay.prepare)
++		msleep(p->desc->delay.prepare);
++
++	p->prepared = true;
++
++	return 0;
++}
++
++extern void tinker_mcu_screen_power_up(void);
++static int tc358762_enable(struct drm_panel *panel)
++{
++	struct tc358762 *p = to_tc358762(panel);
++
++	if (p->enabled)
++		return 0;
++
++	printk("panel enable\n");
++
++	if(trigger_bridge) {
++		pr_info("tinker_mcu_screen_power_up");
++		tinker_mcu_screen_power_up();
++		trigger_bridge = 0;
++	}
++
++	tc358762_dsi_init(p);
++
++	if (p->desc && p->desc->delay.enable)
++		msleep(p->desc->delay.enable);
++
++	if (p->backlight) {
++		p->backlight->props.power = FB_BLANK_UNBLANK;
++		backlight_update_status(p->backlight);
++	}
++
++	tinker_mcu_set_bright(0xFF);
++
++	p->enabled = true;
++
++	return 0;
++}
++
++static int tc358762_get_modes(struct drm_panel *panel)
++{
++	struct tc358762 *p = to_tc358762(panel);
++	int num = 0;
++
++	/* probe EDID if a DDC bus is available */
++	if (p->ddc) {
++		struct edid *edid = drm_get_edid(panel->connector, p->ddc);
++		drm_mode_connector_update_edid_property(panel->connector, edid);
++		if (edid) {
++			num += drm_add_edid_modes(panel->connector, edid);
++			kfree(edid);
++		}
++	}
++
++	/* add hard-coded panel modes */
++	num += tc358762_get_fixed_modes(p);
++
++	/* add device node plane modes */
++	num += tc358762_of_get_native_mode(p);
++
++	return num;
++}
++
++static int tc358762_get_timings(struct drm_panel *panel,
++					unsigned int num_timings,
++					struct display_timing *timings)
++{
++	struct tc358762 *p = to_tc358762(panel);
++	unsigned int i;
++
++	if (!p->desc)
++		return 0;
++
++	if (p->desc->num_timings < num_timings)
++		num_timings = p->desc->num_timings;
++
++	if (timings)
++		for (i = 0; i < num_timings; i++)
++			timings[i] = p->desc->timings[i];
++
++	return p->desc->num_timings;
++}
++
++static const struct drm_panel_funcs tc358762_funcs = {
++	.disable = tc358762_disable,
++	.unprepare = tc358762_unprepare,
++	.prepare = tc358762_prepare,
++	.enable = tc358762_enable,
++	.get_modes = tc358762_get_modes,
++	.get_timings = tc358762_get_timings,
++};
++
++static int tc358762_mipi_probe(struct mipi_dsi_device *dsi, const struct panel_desc *desc)
++{
++	struct device_node *backlight, *ddc;
++	struct tc358762 *panel;
++	struct device *dev = &dsi->dev;
++	int err;
++
++	panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL);
++	if (!panel)
++		return -ENOMEM;
++
++	panel->enabled = false;
++	panel->prepared = false;
++	panel->desc = desc;
++	panel->dev = dev;
++	panel->dsi = dsi;
++
++	panel->supply = devm_regulator_get(dev, "power");
++	if (IS_ERR(panel->supply))
++		return PTR_ERR(panel->supply);
++
++	panel->enable_gpio = devm_gpiod_get_optional(dev, "enable",
++							 GPIOD_OUT_LOW);
++	if (IS_ERR(panel->enable_gpio)) {
++		err = PTR_ERR(panel->enable_gpio);
++		dev_err(dev, "failed to request GPIO: %d\n", err);
++		return err;
++	}
++
++	backlight = of_parse_phandle(dev->of_node, "backlight", 0);
++	if (backlight) {
++		panel->backlight = of_find_backlight_by_node(backlight);
++		of_node_put(backlight);
++
++		if (!panel->backlight)
++			return -EPROBE_DEFER;
++	}
++
++	ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0);
++	if (ddc) {
++		panel->ddc = of_find_i2c_adapter_by_node(ddc);
++		of_node_put(ddc);
++
++		if (!panel->ddc) {
++			err = -EPROBE_DEFER;
++			goto free_backlight;
++		}
++	}
++
++	drm_panel_init(&panel->base);
++	panel->base.dev = dev;
++	panel->base.funcs = &tc358762_funcs;
++
++	err = drm_panel_add(&panel->base);
++	if (err < 0)
++		goto free_ddc;
++
++	dev_set_drvdata(dev, panel);
++
++	return 0;
++
++free_ddc:
++	if (panel->ddc)
++		put_device(&panel->ddc->dev);
++free_backlight:
++	if (panel->backlight)
++		put_device(&panel->backlight->dev);
++
++	return err;
++}
++
++static int tc358762_remove(struct device *dev)
++{
++	struct tc358762 *panel = dev_get_drvdata(dev);
++
++	drm_panel_detach(&panel->base);
++	drm_panel_remove(&panel->base);
++
++	tc358762_disable(&panel->base);
++
++	if (panel->ddc)
++		put_device(&panel->ddc->dev);
++
++	if (panel->backlight)
++		put_device(&panel->backlight->dev);
++
++	return 0;
++}
++
++static void tc358762_shutdown(struct device *dev)
++{
++	struct tc358762 *panel = dev_get_drvdata(dev);
++
++	tc358762_disable(&panel->base);
++}
++
++struct bridge_desc {
++	struct panel_desc desc;
++
++	unsigned long flags;
++	enum mipi_dsi_pixel_format format;
++	unsigned int lanes;
++};
++
++static const struct drm_display_mode tc358762_mode = {
++	.clock = 27448,
++	.hdisplay = 800,
++	.hsync_start = 800 + 65,
++	.hsync_end = 800 + 65 + 20,
++	.htotal = 800 + 65 + 20 + 26,
++	.vdisplay = 480,
++	.vsync_start = 480 + 7,
++	.vsync_end = 480 + 7 + 2,
++	.vtotal = 480 + 7 + 2 + 21,
++	.vrefresh = 60,
++	.flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
++};
++
++static const struct bridge_desc tc358762_bridge = {
++	.desc = {
++		.modes = &tc358762_mode,
++		.num_modes = 1,
++		.bpc = 8,
++		.size = {
++			.width = 217,
++			.height = 136,
++		},
++	},
++	.flags = MIPI_DSI_MODE_VIDEO |
++		 MIPI_DSI_MODE_VIDEO_BURST |
++		 MIPI_DSI_MODE_VIDEO_SYNC_PULSE,
++	.format = MIPI_DSI_FMT_RGB888,
++	.lanes = 1,
++};
++
++static const struct of_device_id dsi_of_match[] = {
++	{
++		.compatible = "asus,tc358762",
++		.data = &tc358762_bridge
++	}, {
++		/* sentinel */
++	}
++};
++MODULE_DEVICE_TABLE(of, dsi_of_match);
++
++static int tc358762_dsi_probe(struct mipi_dsi_device *dsi)
++{
++	const struct bridge_desc *desc;
++	const struct of_device_id *id;
++	const struct panel_desc *pdesc;
++	u32 val;
++	int err;
++
++	id = of_match_node(dsi_of_match, dsi->dev.of_node);
++	if (!id)
++		return -ENODEV;
++
++	desc = id->data;
++
++	printk("find panel: %s\n", id->compatible);
++
++	if (desc) {
++		dsi->mode_flags = desc->flags;
++		dsi->format = desc->format;
++		dsi->lanes = desc->lanes;
++		pdesc = &desc->desc;
++	} else {
++		pdesc = NULL;
++	}
++
++	err = tc358762_mipi_probe(dsi, pdesc);
++
++	if (err < 0)
++		return err;
++
++	if (!of_property_read_u32(dsi->dev.of_node, "dsi,flags", &val))
++		dsi->mode_flags = val;
++
++	if (!of_property_read_u32(dsi->dev.of_node, "dsi,format", &val))
++		dsi->format = val;
++
++	if (!of_property_read_u32(dsi->dev.of_node, "dsi,lanes", &val))
++		dsi->lanes = val;
++
++	return mipi_dsi_attach(dsi);
++}
++
++static int tc358762_dsi_remove(struct mipi_dsi_device *dsi)
++{
++	int err;
++
++	err = mipi_dsi_detach(dsi);
++	if (err < 0)
++		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
++
++	return tc358762_remove(&dsi->dev);
++}
++
++static void tc358762_dsi_shutdown(struct mipi_dsi_device *dsi)
++{
++	tc358762_shutdown(&dsi->dev);
++}
++
++static struct mipi_dsi_driver tc358762_dsi_driver = {
++	.driver = {
++		.name = "bridge-tc358762-dsi",
++		.of_match_table = dsi_of_match,
++	},
++	.probe = tc358762_dsi_probe,
++	.remove = tc358762_dsi_remove,
++	.shutdown = tc358762_dsi_shutdown,
++};
++
++static int __init tc358762_init(void)
++{
++	int err;
++
++	if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) {
++		err = mipi_dsi_driver_register(&tc358762_dsi_driver);
++		if (err < 0)
++			return err;
++	}
++
++	return 0;
++}
++module_init(tc358762_init);
++
++static void __exit tc358762_exit(void)
++{
++	if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
++		mipi_dsi_driver_unregister(&tc358762_dsi_driver);
++}
++module_exit(tc358762_exit);
++
++MODULE_AUTHOR("Jerry <xbl@rock-chips.com>");
++MODULE_DESCRIPTION("DRM Driver for toshiba tc358762 Bridge");
++MODULE_LICENSE("GPL and additional rights");
+\ No newline at end of file
+diff --git a/drivers/tinkerboard/dsi/tinker_ft5406.c b/drivers/tinkerboard/dsi/tinker_ft5406.c
+new file mode 100644
+index 0000000..e148c74
+--- /dev/null
++++ b/drivers/tinkerboard/dsi/tinker_ft5406.c
+@@ -0,0 +1,322 @@
++/*
++ *
++ * TINKER BOARD FT5406 touch driver.
++ *
++ * Copyright (c) 2016 ASUSTek Computer Inc.
++ * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
++ *
++ * This software is licensed under the terms of the GNU General Public
++ * License version 2, as published by the Free Software Foundation, and
++ * may be copied, distributed, and modified under those terms.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/slab.h>
++#include <linux/delay.h>
++#include <linux/i2c.h>
++#include <linux/input.h>
++#include <linux/input/mt.h>
++#include <linux/module.h>
++#include <linux/workqueue.h>
++#include "tinker_ft5406.h"
++
++static int fts_i2c_read(struct i2c_client *client, char *writebuf,
++			   int writelen, char *readbuf, int readlen)
++{
++	int ret;
++
++	if (writelen > 0) {
++		struct i2c_msg msgs[] = {
++			{
++				 .addr = client->addr,
++				 .flags = 0,
++				 .len = writelen,
++				 .buf = writebuf,
++			 },
++			{
++				 .addr = client->addr,
++				 .flags = I2C_M_RD,
++				 .len = readlen,
++				 .buf = readbuf,
++			 },
++		};
++		ret = i2c_transfer(client->adapter, msgs, 2);
++		if (ret < 0)
++			LOG_ERR("i2c read error, %d\n", ret);
++	} else {
++		struct i2c_msg msgs[] = {
++			{
++				 .addr = client->addr,
++				 .flags = I2C_M_RD,
++				 .len = readlen,
++				 .buf = readbuf,
++			 },
++		};
++		ret = i2c_transfer(client->adapter, msgs, 1);
++		if (ret < 0)
++			LOG_ERR("i2c read error, %d\n", ret);
++	}
++
++	return ret;
++}
++
++static int fts_read_reg(struct i2c_client *client, u8 addr, u8 *val)
++{
++	return fts_i2c_read(client, &addr, 1, val, 1);
++}
++
++static int fts_check_fw_ver(struct i2c_client *client)
++{
++	u8 reg_addr, fw_ver[3];
++	int ret;
++
++	reg_addr = FT_REG_FW_VER;
++	ret = fts_i2c_read(client, &reg_addr, 1, &fw_ver[0], 1);
++	if (ret < 0)
++		goto error;
++
++	reg_addr = FT_REG_FW_MIN_VER;
++	ret = fts_i2c_read(client, &reg_addr, 1, &fw_ver[1], 1);
++	if (ret < 0)
++		goto error;
++
++	reg_addr = FT_REG_FW_SUB_MIN_VER;
++	ret = fts_i2c_read(client, &reg_addr, 1, &fw_ver[2], 1);
++	if (ret < 0)
++		goto error;
++
++	LOG_INFO("Firmware version = %d.%d.%d\n", fw_ver[0], fw_ver[1], fw_ver[2]);
++	return 0;
++
++error:
++	return ret;
++}
++
++static int fts_read_td_status(struct tinker_ft5406_data *ts_data)
++{
++	u8 td_status;
++	int ret = -1;
++	ret = fts_read_reg(ts_data->client, FT_TD_STATUS_REG, &td_status);
++	if (ret < 0) {
++		LOG_ERR("get reg td_status failed, %d\n", ret);
++		return ret;
++	}
++	return (int)td_status;
++}
++
++static int fts_read_touchdata(struct tinker_ft5406_data *ts_data)
++{
++	struct ts_event *event = &ts_data->event;
++	int ret = -1, i;
++	u8 buf[FT_ONE_TCH_LEN-2] = { 0 };
++	u8 reg_addr, pointid = FT_MAX_ID;
++
++	for (i = 0; i < event->touch_point && i < MAX_TOUCH_POINTS; i++) {
++		reg_addr = FT_TOUCH_X_H_REG + (i * FT_ONE_TCH_LEN);
++		ret = fts_i2c_read(ts_data->client, &reg_addr, 1, buf, FT_ONE_TCH_LEN-2);
++		if (ret < 0) {
++			LOG_ERR("read touchdata failed.\n");
++			return ret;
++		}
++
++		pointid = (buf[FT_TOUCH_ID]) >> 4;
++		if (pointid >= MAX_TOUCH_POINTS)
++			break;
++		event->au8_finger_id[i] = pointid;
++		event->au16_x[i] = (s16) (buf[FT_TOUCH_X_H] & 0x0F) << 8 | (s16) buf[FT_TOUCH_X_L];
++		event->au16_y[i] = (s16) (buf[FT_TOUCH_Y_H] & 0x0F) << 8 | (s16) buf[FT_TOUCH_Y_L];
++		event->au8_touch_event[i] = buf[FT_TOUCH_EVENT] >> 6;
++
++#if XY_REVERSE
++		event->au16_x[i] = SCREEN_WIDTH - event->au16_x[i] - 1;
++		event->au16_y[i] = SCREEN_HEIGHT - event->au16_y[i] - 1;
++#endif
++	}
++	event->pressure = FT_PRESS;
++
++	return 0;
++}
++
++static void fts_report_value(struct tinker_ft5406_data *ts_data)
++{
++	struct ts_event *event = &ts_data->event;
++	int i, modified_ids = 0, released_ids;
++
++	for (i = 0; i < event->touch_point && i < MAX_TOUCH_POINTS; i++) {
++		if (event->au8_touch_event[i]== FT_TOUCH_DOWN
++				|| event->au8_touch_event[i] == FT_TOUCH_CONTACT)
++		{
++			modified_ids |= 1 << event->au8_finger_id[i];
++			input_mt_slot(ts_data->input_dev, event->au8_finger_id[i]);
++			input_mt_report_slot_state(ts_data->input_dev, MT_TOOL_FINGER,
++				true);
++			input_report_abs(ts_data->input_dev, ABS_MT_TOUCH_MAJOR,
++					event->pressure);
++			input_report_abs(ts_data->input_dev, ABS_MT_POSITION_X,
++					event->au16_x[i]);
++			input_report_abs(ts_data->input_dev, ABS_MT_POSITION_Y,
++					event->au16_y[i]);
++
++			if(!((1 << event->au8_finger_id[i]) & ts_data->known_ids))
++				LOG_DBG("Touch id-%d: x = %d, y = %d\n",
++					event->au8_finger_id[i], event->au16_x[i], event->au16_y[i]);
++		}
++	}
++
++	released_ids = ts_data->known_ids & ~modified_ids;
++	for(i = 0; released_ids && i < MAX_TOUCH_POINTS; i++) {
++		if(released_ids & (1<<i)) {
++			LOG_DBG("Release id-%d, known = %x modified = %x\n", i, ts_data->known_ids, modified_ids);
++			input_mt_slot(ts_data->input_dev, i);
++			input_mt_report_slot_state(ts_data->input_dev, MT_TOOL_FINGER, false);
++			modified_ids &= ~(1 << i);
++		}
++	}
++	ts_data->known_ids = modified_ids;
++	input_mt_report_pointer_emulation(ts_data->input_dev, true);
++	input_sync(ts_data->input_dev);
++}
++
++extern int tinker_mcu_is_connected(void);
++
++static void tinker_ft5406_work(struct work_struct *work)
++{
++	struct tinker_ft5406_data *ts_data
++			= container_of(work, struct tinker_ft5406_data, ft5406_work);
++	struct ts_event *event = &ts_data->event;
++	int ret = 0, count = 8, td_status;
++
++	while(count > 0) {
++		ret = fts_check_fw_ver(ts_data->client);
++		if (ret == 0)
++			break;
++		LOG_INFO("checking touch ic, countdown: %d\n", count);
++		msleep(1000);
++		count--;
++	}
++	if (!count) {
++		LOG_ERR("checking touch ic timeout, %d\n", ret);
++		return;
++	}
++
++	//polling 60fps
++	while(1) {
++		td_status = fts_read_td_status(ts_data);
++		if (td_status < VALID_TD_STATUS_VAL+1 && (td_status > 0 || ts_data->known_ids != 0)) {
++			memset(event, -1, sizeof(struct ts_event));
++			event->touch_point = td_status;
++			ret = fts_read_touchdata(ts_data);
++			if (ret == 0)
++				fts_report_value(ts_data);
++		}
++		msleep_interruptible(17);
++	}
++}
++
++static int tinker_ft5406_probe(struct i2c_client *client,
++			const struct i2c_device_id *id)
++{
++	struct tinker_ft5406_data *ts_data;
++	struct input_dev *input_dev;
++	int ret = 0, timeout = 10;
++
++	LOG_INFO("address = 0x%x\n", client->addr);
++
++	ts_data = kzalloc(sizeof(struct tinker_ft5406_data), GFP_KERNEL);
++	if (ts_data == NULL) {
++		LOG_ERR("no memory for device\n");
++		return -ENOMEM;
++	}
++
++	ts_data->client = client;
++	i2c_set_clientdata(client, ts_data);
++
++	while(!tinker_mcu_is_connected() && timeout > 0) {
++		msleep(50);
++		timeout--;
++	}
++
++	if (timeout == 0) {
++		LOG_ERR("wait connected timeout\n");
++		ret = -ENODEV;
++		goto timeout_failed;
++	}
++
++	input_dev = input_allocate_device();
++	if (!input_dev) {
++		LOG_ERR("failed to allocate input device\n");
++		goto input_allocate_failed;
++	}
++	input_dev->name = "fts_ts";
++	input_dev->id.bustype = BUS_I2C;
++	input_dev->dev.parent = &ts_data->client->dev;
++
++	ts_data->input_dev = input_dev;
++	input_set_drvdata(input_dev, ts_data);
++
++	__set_bit(EV_SYN, input_dev->evbit);
++	__set_bit(EV_KEY, input_dev->evbit);
++	__set_bit(EV_ABS, input_dev->evbit);
++	__set_bit(BTN_TOUCH, input_dev->keybit);
++
++	input_mt_init_slots(input_dev, MAX_TOUCH_POINTS, 0);
++	input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0,
++			     SCREEN_WIDTH, 0, 0);
++	input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0,
++			     SCREEN_HEIGHT, 0, 0);
++
++	ret = input_register_device(input_dev);
++	if (ret) {
++		LOG_ERR("Input device registration failed\n");
++		goto input_register_failed;
++	}
++
++	INIT_WORK(&ts_data->ft5406_work, tinker_ft5406_work);
++	schedule_work(&ts_data->ft5406_work);
++
++	return 0;
++
++input_register_failed:
++	input_free_device(input_dev);
++input_allocate_failed:
++timeout_failed:
++	kfree(ts_data);
++	return ret;
++}
++
++static int tinker_ft5406_remove(struct i2c_client *client)
++{
++	struct tinker_ft5406_data *ts_data = i2c_get_clientdata(client);
++
++	cancel_work_sync(&ts_data->ft5406_work);
++	if (ts_data->input_dev) {
++		input_unregister_device(ts_data->input_dev);
++		input_free_device(ts_data->input_dev);
++	}
++	kfree(ts_data);
++	return 0;
++}
++
++static const struct i2c_device_id tinker_ft5406_id[] = {
++	{"tinker_ft5406", 0},
++	{},
++};
++
++static struct i2c_driver tinker_ft5406_driver = {
++	.driver = {
++		.name = "tinker_ft5406",
++	},
++	.probe = tinker_ft5406_probe,
++	.remove = tinker_ft5406_remove,
++	.id_table = tinker_ft5406_id,
++};
++module_i2c_driver(tinker_ft5406_driver);
++
++MODULE_DESCRIPTION("TINKER BOARD FT5406 Touch driver");
++MODULE_LICENSE("GPL v2");
+diff --git a/drivers/tinkerboard/dsi/tinker_ft5406.h b/drivers/tinkerboard/dsi/tinker_ft5406.h
+new file mode 100644
+index 0000000..29684c8
+--- /dev/null
++++ b/drivers/tinkerboard/dsi/tinker_ft5406.h
+@@ -0,0 +1,63 @@
++#ifndef _TINKER_FT5406_H_
++#define _TINKER_FT5406_H_
++
++#define LOG_DBG(fmt,arg...) pr_debug("tinker-ft5406: %s: "fmt, __func__, ##arg);
++#define LOG_INFO(fmt,arg...) pr_info("tinker-ft5406: %s: "fmt, __func__, ##arg);
++#define LOG_ERR(fmt,arg...) pr_err("tinker-ft5406: %s: "fmt, __func__, ##arg);
++
++#define XY_REVERSE 1
++
++#define SCREEN_WIDTH	800
++#define SCREEN_HEIGHT	480
++
++#define FT_ONE_TCH_LEN	6
++
++#define FT_REG_FW_VER			0xA6
++#define FT_REG_FW_MIN_VER		0xB2
++#define FT_REG_FW_SUB_MIN_VER	0xB3
++
++#define VALID_TD_STATUS_VAL		10
++#define MAX_TOUCH_POINTS		1
++
++#define FT_PRESS			0x7F
++#define FT_MAX_ID			0x0F
++
++#define FT_TOUCH_X_H	0
++#define FT_TOUCH_X_L	1
++#define FT_TOUCH_Y_H	2
++#define FT_TOUCH_Y_L	3
++#define FT_TOUCH_EVENT	0
++#define FT_TOUCH_ID		2
++
++#define FT_TOUCH_X_H_REG	3
++#define FT_TOUCH_X_L_REG	4
++#define FT_TOUCH_Y_H_REG	5
++#define FT_TOUCH_Y_L_REG	6
++#define FT_TD_STATUS_REG	2
++#define FT_TOUCH_EVENT_REG	3
++#define FT_TOUCH_ID_REG		5
++
++#define FT_TOUCH_DOWN		0
++#define FT_TOUCH_CONTACT	2
++
++struct ts_event {
++	u16 au16_x[MAX_TOUCH_POINTS]; /*x coordinate */
++	u16 au16_y[MAX_TOUCH_POINTS]; /*y coordinate */
++	u8 au8_touch_event[MAX_TOUCH_POINTS]; /*touch event: 0:down; 1:up; 2:contact */
++	u8 au8_finger_id[MAX_TOUCH_POINTS]; /*touch ID */
++	u16 pressure;
++	u8 touch_point;
++	u8 point_num;
++};
++
++struct tinker_ft5406_data {
++	struct device *dev;
++	struct i2c_client *client;
++	struct input_dev *input_dev;
++	struct ts_event event;
++	struct work_struct ft5406_work;
++
++	int known_ids;
++};
++
++#endif
+\ No newline at end of file
diff --git a/patch/kernel/rockchip-default/146_rockchip_tinker_dsi.patch b/patch/kernel/rockchip-default/146_rockchip_tinker_dsi.patch
new file mode 100644
index 0000000000..b6958cba25
--- /dev/null
+++ b/patch/kernel/rockchip-default/146_rockchip_tinker_dsi.patch
@@ -0,0 +1,234 @@
+diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+index 6115e81..775bec2 100644
+--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
++++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+@@ -91,13 +91,16 @@
+ #define FRAME_BTA_ACK			BIT(14)
+ #define ENABLE_LOW_POWER		(0x3f << 8)
+ #define ENABLE_LOW_POWER_MASK		(0x3f << 8)
+-#define VID_MODE_TYPE_BURST_SYNC_PULSES		0x2
+-#define VID_MODE_TYPE_MASK			0x3
++#define VID_MODE_TYPE_BURST_SYNC_PULSES	0x0
++#define VID_MODE_TYPE_BURST_SYNC_EVENTS	0x1
++#define VID_MODE_TYPE_BURST		0x2
+ 
+ #define DSI_VID_PKT_SIZE		0x3c
+ #define VID_PKT_SIZE(p)			(((p) & 0x3fff) << 0)
+ #define VID_PKT_MAX_SIZE		0x3fff
+ 
++#define DSI_VID_NUM_CHUMKS		0x40
++#define DSI_VID_NULL_PKT_SIZE		0x44
+ #define DSI_VID_HSA_TIME		0x48
+ #define DSI_VID_HBP_TIME		0x4c
+ #define DSI_VID_HLINE_TIME		0x50
+@@ -238,7 +241,7 @@
+ #define	TER_RESISTOR_LOW	0
+ #define LEVEL_SHIFTERS_ON	BIT(6)
+ #define TER_CAL_DONE		BIT(5)
+-#define SETRD_MAX		(0x7 << 2)
++#define SETRD_MAX		(0x0 << 2)
+ #define POWER_MANAGE		BIT(1)
+ #define TER_RESISTORS_ON	BIT(0)
+ 
+@@ -343,7 +346,7 @@ static int max_mbps_to_testdin(unsigned int max_mbps)
+ 
+ /*
+  * The controller should generate 2 frames before
+- * preparing the peripheral.
++ * preparing the peripheral..
+  */
+ static void dw_mipi_dsi_wait_for_two_frames(struct dw_mipi_dsi *dsi)
+ {
+@@ -413,8 +416,6 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
+ 		return testdin;
+ 	}
+ 
+-	dsi_write(dsi, DSI_PWR_UP, POWERUP);
+-
+ 	if (!IS_ERR(dsi->phy_cfg_clk)) {
+ 		ret = clk_prepare_enable(dsi->phy_cfg_clk);
+ 		if (ret) {
+@@ -456,13 +457,12 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
+ 					 BANDGAP_SEL(BANDGAP_96_10));
+ 
+ 	dw_mipi_dsi_phy_write(dsi, 0x70, TLP_PROGRAM_EN | 0xf);
+-	dw_mipi_dsi_phy_write(dsi, 0x71, THS_PRE_PROGRAM_EN | 0x55);
++	dw_mipi_dsi_phy_write(dsi, 0x71, THS_PRE_PROGRAM_EN | 0x2d);
+ 	dw_mipi_dsi_phy_write(dsi, 0x72, THS_ZERO_PROGRAM_EN | 0xa);
+ 
+ 	dsi_write(dsi, DSI_PHY_RSTZ, PHY_ENFORCEPLL | PHY_ENABLECLK |
+ 				     PHY_UNRSTZ | PHY_UNSHUTDOWNZ);
+ 
+-
+ 	ret = readx_poll_timeout(readl, dsi->base + DSI_PHY_STATUS,
+ 				 val, val & LOCK, 1000, PHY_STATUS_TIMEOUT_US);
+ 	if (ret < 0) {
+@@ -477,6 +477,8 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
+ 		dev_err(dsi->dev,
+ 			"failed to wait for phy clk lane stop state\n");
+ 
++	dsi_write(dsi, DSI_LPCLK_CTRL, PHY_TXREQUESTCLKHS);
++
+ phy_init_end:
+ 	if (!IS_ERR(dsi->phy_cfg_clk))
+ 		clk_disable_unprepare(dsi->phy_cfg_clk);
+@@ -502,7 +504,7 @@ static int dw_mipi_dsi_get_lane_bps(struct dw_mipi_dsi *dsi)
+ 	mpclk = DIV_ROUND_UP(dsi->mode->clock, MSEC_PER_SEC);
+ 	if (mpclk) {
+ 		/* take 1 / 0.9, since mbps must big than bandwidth of RGB */
+-		tmp = mpclk * (bpp / dsi->lanes) * 10 / 9;
++		tmp = mpclk * (bpp / dsi->lanes);
+ 		if (tmp < max_mbps)
+ 			target_mbps = tmp;
+ 		else
+@@ -574,10 +576,12 @@ static int dw_mipi_dsi_host_detach(struct mipi_dsi_host *host,
+ static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 val)
+ {
+ 	int ret;
++	int sts = 0;
+ 
+ 	ret = readx_poll_timeout(readl, dsi->base + DSI_CMD_PKT_STATUS,
+-				 val, !(val & GEN_CMD_FULL), 1000,
++				 sts, !(sts & GEN_CMD_FULL), 1000,
+ 				 CMD_PKT_STATUS_TIMEOUT_US);
++
+ 	if (ret < 0) {
+ 		dev_err(dsi->dev, "failed to get available command FIFO\n");
+ 		return ret;
+@@ -586,8 +590,9 @@ static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 val)
+ 	dsi_write(dsi, DSI_GEN_HDR, val);
+ 
+ 	ret = readx_poll_timeout(readl, dsi->base + DSI_CMD_PKT_STATUS,
+-				 val, val & (GEN_CMD_EMPTY | GEN_PLD_W_EMPTY),
++				 sts, sts & (GEN_CMD_EMPTY | GEN_PLD_W_EMPTY),
+ 				 1000, CMD_PKT_STATUS_TIMEOUT_US);
++
+ 	if (ret < 0) {
+ 		dev_err(dsi->dev, "failed to write command FIFO\n");
+ 		return ret;
+@@ -596,8 +601,8 @@ static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 val)
+ 	return 0;
+ }
+ 
+-static int dw_mipi_dsi_dcs_short_write(struct dw_mipi_dsi *dsi,
+-				       const struct mipi_dsi_msg *msg)
++static int dw_mipi_dsi_short_write(struct dw_mipi_dsi *dsi,
++				   const struct mipi_dsi_msg *msg)
+ {
+ 	const u16 *tx_buf = msg->tx_buf;
+ 	u32 val = GEN_HDATA(*tx_buf) | GEN_HTYPE(msg->type);
+@@ -611,13 +616,14 @@ static int dw_mipi_dsi_dcs_short_write(struct dw_mipi_dsi *dsi,
+ 	return dw_mipi_dsi_gen_pkt_hdr_write(dsi, val);
+ }
+ 
+-static int dw_mipi_dsi_dcs_long_write(struct dw_mipi_dsi *dsi,
+-				      const struct mipi_dsi_msg *msg)
++static int dw_mipi_dsi_long_write(struct dw_mipi_dsi *dsi,
++				  const struct mipi_dsi_msg *msg)
+ {
+ 	const u32 *tx_buf = msg->tx_buf;
+ 	int len = msg->tx_len, pld_data_bytes = sizeof(*tx_buf), ret;
+ 	u32 val = GEN_HDATA(msg->tx_len) | GEN_HTYPE(msg->type);
+ 	u32 remainder = 0;
++	u32 sts = 0;
+ 
+ 	if (msg->tx_len < 3) {
+ 		dev_err(dsi->dev, "wrong tx buf length %zu for long write\n",
+@@ -637,7 +643,7 @@ static int dw_mipi_dsi_dcs_long_write(struct dw_mipi_dsi *dsi,
+ 		}
+ 
+ 		ret = readx_poll_timeout(readl, dsi->base + DSI_CMD_PKT_STATUS,
+-					 val, !(val & GEN_PLD_W_FULL), 1000,
++					 sts, !(sts & GEN_PLD_W_FULL), 1000,
+ 					 CMD_PKT_STATUS_TIMEOUT_US);
+ 		if (ret < 0) {
+ 			dev_err(dsi->dev,
+@@ -658,11 +664,15 @@ static ssize_t dw_mipi_dsi_host_transfer(struct mipi_dsi_host *host,
+ 	switch (msg->type) {
+ 	case MIPI_DSI_DCS_SHORT_WRITE:
+ 	case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
++	case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:
++	case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM:
++	case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM:
+ 	case MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE:
+-		ret = dw_mipi_dsi_dcs_short_write(dsi, msg);
++		ret = dw_mipi_dsi_short_write(dsi, msg);
+ 		break;
+ 	case MIPI_DSI_DCS_LONG_WRITE:
+-		ret = dw_mipi_dsi_dcs_long_write(dsi, msg);
++	case MIPI_DSI_GENERIC_LONG_WRITE:
++		ret = dw_mipi_dsi_long_write(dsi, msg);
+ 		break;
+ 	default:
+ 		dev_err(dsi->dev, "unsupported message type\n");
+@@ -682,7 +692,7 @@ static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi)
+ {
+ 	u32 val;
+ 
+-	val = VID_MODE_TYPE_BURST_SYNC_PULSES | ENABLE_LOW_POWER;
++	val = VID_MODE_TYPE_BURST | ENABLE_LOW_POWER;
+ 
+ 	dsi_write(dsi, DSI_VID_MODE_CFG, val);
+ }
+@@ -713,9 +723,9 @@ static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
+ 	dsi_write(dsi, DSI_PWR_UP, RESET);
+ 	dsi_write(dsi, DSI_PHY_RSTZ, PHY_DISFORCEPLL | PHY_DISABLECLK
+ 		  | PHY_RSTZ | PHY_SHUTDOWNZ);
++	dsi_write(dsi, DSI_PWR_UP, POWERUP);
+ 	dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVIDSION(10) |
+ 		  TX_ESC_CLK_DIVIDSION(7));
+-	dsi_write(dsi, DSI_LPCLK_CTRL, PHY_TXREQUESTCLKHS);
+ }
+ 
+ static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi,
+@@ -853,7 +863,7 @@ static void dw_mipi_dsi_encoder_mode_set(struct drm_encoder *encoder,
+ 	if (dsi->dpms_mode == DRM_MODE_DPMS_ON)
+ 		return;
+ 
+-	dsi->mode = adjusted_mode;
++	drm_mode_copy(dsi->mode, adjusted_mode);
+ 
+ 	ret = dw_mipi_dsi_get_lane_bps(dsi);
+ 	if (ret < 0)
+@@ -940,9 +950,10 @@ static void dw_mipi_dsi_encoder_commit(struct drm_encoder *encoder)
+ 	dw_mipi_dsi_phy_init(dsi);
+ 	dw_mipi_dsi_wait_for_two_frames(dsi);
+ 
+-	dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_VID_MODE);
+ 	drm_panel_enable(dsi->panel);
+ 
++	dw_mipi_dsi_set_mode(dsi, DW_MIPI_DSI_VID_MODE);
++
+ 	clk_disable_unprepare(dsi->pclk);
+ 
+ 	if (mux)
+@@ -1138,6 +1149,7 @@ static const struct of_device_id dw_mipi_dsi_dt_ids[] = {
+ };
+ MODULE_DEVICE_TABLE(of, dw_mipi_dsi_dt_ids);
+ 
++extern int tinker_mcu_is_connected(void);
+ static int dw_mipi_dsi_bind(struct device *dev, struct device *master,
+ 			     void *data)
+ {
+@@ -1188,6 +1200,11 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master,
+ 		return ret;
+ 	}
+ 
++	if(!tinker_mcu_is_connected()) {
++		pr_info("panel is not connected\n");
++		goto err_pllref;
++	}
++
+ 	ret = dw_mipi_dsi_register(drm, dsi);
+ 	if (ret) {
+ 		dev_err(dev, "Failed to register mipi_dsi: %d\n", ret);
+@@ -1236,6 +1253,9 @@ static int dw_mipi_dsi_probe(struct platform_device *pdev)
+ 	dsi->pdata = pdata;
+ 	dsi->dsi_host.ops = &dw_mipi_dsi_host_ops;
+ 	dsi->dsi_host.dev = &pdev->dev;
++	dsi->mode = devm_kzalloc(&pdev->dev, sizeof(struct drm_display_mode), GFP_KERNEL);
++	if (!dsi)
++		return -ENOMEM;
+ 
+ 	ret = mipi_dsi_host_register(&dsi->dsi_host);
+ 	if (ret)