path: root/drivers/gpu/drm/panel/panel-khadas-ts050.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2020 BayLibre, SAS
 * Author: Neil Armstrong <narmstrong@baylibre.com>
 */

#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regulator/consumer.h>

#include <video/mipi_display.h>

#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>

struct khadas_ts050_panel {
	struct drm_panel base;
	struct mipi_dsi_device *link;

	struct regulator *supply;
	struct gpio_desc *reset_gpio;
	struct gpio_desc *enable_gpio;

	bool prepared;
	bool enabled;
};

struct khadas_ts050_panel_cmd {
	u8 cmd;
	u8 data;
};

/* Only the CMD1 User Command set is documented */
static const struct khadas_ts050_panel_cmd init_code[] = {
	/* Select Unknown CMD Page (Undocumented) */
	{0xff, 0xee},
	/* Reload CMD1: Don't reload default value to register */
	{0xfb, 0x01},
	{0x1f, 0x45},
	{0x24, 0x4f},
	{0x38, 0xc8},
	{0x39, 0x27},
	{0x1e, 0x77},
	{0x1d, 0x0f},
	{0x7e, 0x71},
	{0x7c, 0x03},
	{0xff, 0x00},
	{0xfb, 0x01},
	{0x35, 0x01},
	/* Select CMD2 Page0 (Undocumented) */
	{0xff, 0x01},
	/* Reload CMD1: Don't reload default value to register */
	{0xfb, 0x01},
	{0x00, 0x01},
	{0x01, 0x55},
	{0x02, 0x40},
	{0x05, 0x40},
	{0x06, 0x4a},
	{0x07, 0x24},
	{0x08, 0x0c},
	{0x0b, 0x7d},
	{0x0c, 0x7d},
	{0x0e, 0xb0},
	{0x0f, 0xae},
	{0x11, 0x10},
	{0x12, 0x10},
	{0x13, 0x03},
	{0x14, 0x4a},
	{0x15, 0x12},
	{0x16, 0x12},
	{0x18, 0x00},
	{0x19, 0x77},
	{0x1a, 0x55},
	{0x1b, 0x13},
	{0x1c, 0x00},
	{0x1d, 0x00},
	{0x1e, 0x13},
	{0x1f, 0x00},
	{0x23, 0x00},
	{0x24, 0x00},
	{0x25, 0x00},
	{0x26, 0x00},
	{0x27, 0x00},
	{0x28, 0x00},
	{0x35, 0x00},
	{0x66, 0x00},
	{0x58, 0x82},
	{0x59, 0x02},
	{0x5a, 0x02},
	{0x5b, 0x02},
	{0x5c, 0x82},
	{0x5d, 0x82},
	{0x5e, 0x02},
	{0x5f, 0x02},
	{0x72, 0x31},
	/* Select CMD2 Page4 (Undocumented) */
	{0xff, 0x05},
	/* Reload CMD1: Don't reload default value to register */
	{0xfb, 0x01},
	{0x00, 0x01},
	{0x01, 0x0b},
	{0x02, 0x0c},
	{0x03, 0x09},
	{0x04, 0x0a},
	{0x05, 0x00},
	{0x06, 0x0f},
	{0x07, 0x10},
	{0x08, 0x00},
	{0x09, 0x00},
	{0x0a, 0x00},
	{0x0b, 0x00},
	{0x0c, 0x00},
	{0x0d, 0x13},
	{0x0e, 0x15},
	{0x0f, 0x17},
	{0x10, 0x01},
	{0x11, 0x0b},
	{0x12, 0x0c},
	{0x13, 0x09},
	{0x14, 0x0a},
	{0x15, 0x00},
	{0x16, 0x0f},
	{0x17, 0x10},
	{0x18, 0x00},
	{0x19, 0x00},
	{0x1a, 0x00},
	{0x1b, 0x00},
	{0x1c, 0x00},
	{0x1d, 0x13},
	{0x1e, 0x15},
	{0x1f, 0x17},
	{0x20, 0x00},
	{0x21, 0x03},
	{0x22, 0x01},
	{0x23, 0x40},
	{0x24, 0x40},
	{0x25, 0xed},
	{0x29, 0x58},
	{0x2a, 0x12},
	{0x2b, 0x01},
	{0x4b, 0x06},
	{0x4c, 0x11},
	{0x4d, 0x20},
	{0x4e, 0x02},
	{0x4f, 0x02},
	{0x50, 0x20},
	{0x51, 0x61},
	{0x52, 0x01},
	{0x53, 0x63},
	{0x54, 0x77},
	{0x55, 0xed},
	{0x5b, 0x00},
	{0x5c, 0x00},
	{0x5d, 0x00},
	{0x5e, 0x00},
	{0x5f, 0x15},
	{0x60, 0x75},
	{0x61, 0x00},
	{0x62, 0x00},
	{0x63, 0x00},
	{0x64, 0x00},
	{0x65, 0x00},
	{0x66, 0x00},
	{0x67, 0x00},
	{0x68, 0x04},
	{0x69, 0x00},
	{0x6a, 0x00},
	{0x6c, 0x40},
	{0x75, 0x01},
	{0x76, 0x01},
	{0x7a, 0x80},
	{0x7b, 0xa3},
	{0x7c, 0xd8},
	{0x7d, 0x60},
	{0x7f, 0x15},
	{0x80, 0x81},
	{0x83, 0x05},
	{0x93, 0x08},
	{0x94, 0x10},
	{0x8a, 0x00},
	{0x9b, 0x0f},
	{0xea, 0xff},
	{0xec, 0x00},
	/* Select CMD2 Page0 (Undocumented) */
	{0xff, 0x01},
	/* Reload CMD1: Don't reload default value to register */
	{0xfb, 0x01},
	{0x75, 0x00},
	{0x76, 0xdf},
	{0x77, 0x00},
	{0x78, 0xe4},
	{0x79, 0x00},
	{0x7a, 0xed},
	{0x7b, 0x00},
	{0x7c, 0xf6},
	{0x7d, 0x00},
	{0x7e, 0xff},
	{0x7f, 0x01},
	{0x80, 0x07},
	{0x81, 0x01},
	{0x82, 0x10},
	{0x83, 0x01},
	{0x84, 0x18},
	{0x85, 0x01},
	{0x86, 0x20},
	{0x87, 0x01},
	{0x88, 0x3d},
	{0x89, 0x01},
	{0x8a, 0x56},
	{0x8b, 0x01},
	{0x8c, 0x84},
	{0x8d, 0x01},
	{0x8e, 0xab},
	{0x8f, 0x01},
	{0x90, 0xec},
	{0x91, 0x02},
	{0x92,