drivers/gpu/drm/panel/panel-ilitek-ili9806e-spi.c - third_party/linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 /*
  * SPI interface to the Ilitek ILI9806E panel.
  *
  * Copyright (c) 2026 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com>
  */

 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/media-bus-format.h>
 #include <linux/module.h>
 #include <linux/spi/spi.h>

 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_panel.h>
 #include <drm/drm_print.h>

 #include <video/mipi_display.h>

 #include "panel-ilitek-ili9806e-core.h"

 struct ili9806e_spi_panel {
 	struct spi_device *spi;
 	struct mipi_dbi dbi;
 	const struct ili9806e_spi_panel_desc *desc;
 };

 struct ili9806e_spi_panel_desc {
 	const struct drm_display_mode *display_mode;
 	u32 bus_format;
 	u32 bus_flags;
 	void (*init_sequence)(struct ili9806e_spi_panel *ctx);
 };

 static int ili9806e_spi_off(struct ili9806e_spi_panel *ctx)
 {
 	struct mipi_dbi *dbi = &ctx->dbi;

 	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF, 0x00);
 	mipi_dbi_command(dbi, MIPI_DCS_ENTER_SLEEP_MODE, 0x00);

 	return 0;
 }

 static int ili9806e_spi_unprepare(struct drm_panel *panel)
 {
 	struct ili9806e_spi_panel *ctx = ili9806e_get_transport(panel);
 	struct device *dev = &ctx->spi->dev;
 	int ret;

 	ili9806e_spi_off(ctx);

 	ret = ili9806e_power_off(dev);
 	if (ret)
 		dev_err(dev, "power off failed: %d\n", ret);

 	return 0;
 }

 static int ili9806e_spi_prepare(struct drm_panel *panel)
 {
 	struct ili9806e_spi_panel *ctx = ili9806e_get_transport(panel);
 	struct device *dev = &ctx->spi->dev;
 	int ret;

 	ret = ili9806e_power_on(dev);
 	if (ret)
 		return ret;

 	if (ctx->desc->init_sequence)
 		ctx->desc->init_sequence(ctx);

 	return 0;
 }

 static int ili9806e_spi_get_modes(struct drm_panel *panel,
 			      struct drm_connector *connector)
 {
 	struct ili9806e_spi_panel *ctx = ili9806e_get_transport(panel);
 	const struct ili9806e_spi_panel_desc *desc = ctx->desc;
 	struct drm_display_mode *mode;

 	mode = drm_mode_duplicate(connector->dev, desc->display_mode);
 	if (!mode)
 		return -ENOMEM;

 	drm_mode_set_name(mode);

 	connector->display_info.width_mm = mode->width_mm;
 	connector->display_info.height_mm = mode->height_mm;
 	connector->display_info.bus_flags = desc->bus_flags;
 	drm_display_info_set_bus_formats(&connector->display_info,
 					 &desc->bus_format, 1);

 	drm_mode_probed_add(connector, mode);

 	return 1;
 }

 static const struct drm_panel_funcs ili9806e_spi_funcs = {
 	.unprepare = ili9806e_spi_unprepare,
 	.prepare   = ili9806e_spi_prepare,
 	.get_modes = ili9806e_spi_get_modes,
 };

 static int ili9806e_spi_probe(struct spi_device *spi)
 {
 	struct device *dev = &spi->dev;
 	struct ili9806e_spi_panel *ctx;
 	int err;

 	ctx = devm_kzalloc(dev, sizeof(struct ili9806e_spi_panel), GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;

 	ctx->spi = spi;
 	ctx->desc = device_get_match_data(dev);

 	err = mipi_dbi_spi_init(spi, &ctx->dbi, NULL);
 	if (err)
 		return dev_err_probe(dev, err, "MIPI DBI init failed\n");

 	return ili9806e_probe(dev, ctx, &ili9806e_spi_funcs,
 			      DRM_MODE_CONNECTOR_DPI);
 }

 static void ili9806e_spi_remove(struct spi_device *spi)
 {
 	ili9806e_remove(&spi->dev);
 }

 static void rk050hr345_ct106a_init(struct ili9806e_spi_panel *ctx)
 {
 	struct mipi_dbi *dbi = &ctx->dbi;

 	/* Switch to page 1 */
 	mipi_dbi_command(dbi, 0xff, 0xff, 0x98, 0x06, 0x04, 0x01);
 	/* Interface Settings */
 	mipi_dbi_command(dbi, 0x08, 0x10);
 	mipi_dbi_command(dbi, 0x21, 0x01);
 	/* Panel Settings */
 	mipi_dbi_command(dbi, 0x30, 0x01);
 	mipi_dbi_command(dbi, 0x31, 0x00);
 	/* Power Control */
 	mipi_dbi_command(dbi, 0x40, 0x15);
 	mipi_dbi_command(dbi, 0x41, 0x44);
 	mipi_dbi_command(dbi, 0x42, 0x03);
 	mipi_dbi_command(dbi, 0x43, 0x09);
 	mipi_dbi_command(dbi, 0x44, 0x09);
 	mipi_dbi_command(dbi, 0x50, 0x78);
 	mipi_dbi_command(dbi, 0x51, 0x78);
 	mipi_dbi_command(dbi, 0x52, 0x00);
 	mipi_dbi_command(dbi, 0x53, 0x3a);
 	mipi_dbi_command(dbi, 0x57, 0x50);
 	/* Timing Control */
 	mipi_dbi_command(dbi, 0x60, 0x07);
 	mipi_dbi_command(dbi, 0x61, 0x00);
 	mipi_dbi_command(dbi, 0x62, 0x08);
 	mipi_dbi_command(dbi, 0x63, 0x00);
 	/* Gamma Settings */
 	mipi_dbi_command(dbi, 0xa0, 0x00);
 	mipi_dbi_command(dbi, 0xa1, 0x03);
 	mipi_dbi_command(dbi, 0xa2, 0x0b);
 	mipi_dbi_command(dbi, 0xa3, 0x0f);
 	mipi_dbi_command(dbi, 0xa4, 0x0b);
 	mipi_dbi_command(dbi, 0xa5, 0x1b);
 	mipi_dbi_command(dbi, 0xa6, 0x0a);
 	mipi_dbi_command(dbi, 0xa7, 0x0a);
 	mipi_dbi_command(dbi, 0xa8, 0x02);
 	mipi_dbi_command(dbi, 0xa9, 0x07);
 	mipi_dbi_command(dbi, 0xaa, 0x05);
 	mipi_dbi_command(dbi, 0xab, 0x03);
 	mipi_dbi_command(dbi, 0xac, 0x0e);
 	mipi_dbi_command(dbi, 0xad, 0x32);
 	mipi_dbi_command(dbi, 0xae, 0x2d);
 	mipi_dbi_command(dbi, 0xaf, 0x00);
 	mipi_dbi_command(dbi, 0xc0, 0x00);
 	mipi_dbi_command(dbi, 0xc1, 0x03);
 	mipi_dbi_command(dbi, 0xc2, 0x0e);
 	mipi_dbi_command(dbi, 0xc3, 0x10);
 	mipi_dbi_command(dbi, 0xc4, 0x09);
 	mipi_dbi_command(dbi, 0xc5, 0x17);
 	mipi_dbi_command(dbi, 0xc6, 0x09);
 	mipi_dbi_command(dbi, 0xc7, 0x07);
 	mipi_dbi_command(dbi, 0xc8, 0x04);
 	mipi_dbi_command(dbi, 0xc9, 0x09);
 	mipi_dbi_command(dbi, 0xca, 0x06);
 	mipi_dbi_command(dbi, 0xcb, 0x06);
 	mipi_dbi_command(dbi, 0xcc, 0x0c);
 	mipi_dbi_command(dbi, 0xcd, 0x25);
 	mipi_dbi_command(dbi, 0xce, 0x20);
 	mipi_dbi_command(dbi, 0xcf, 0x00);

 	/* Switch to page 6 */
 	mipi_dbi_command(dbi, 0xff, 0xff, 0x98, 0x06, 0x04, 0x06);
 	/* GIP settings */
 	mipi_dbi_command(dbi, 0x00, 0x21);
 	mipi_dbi_command(dbi, 0x01, 0x09);
 	mipi_dbi_command(dbi, 0x02, 0x00);
 	mipi_dbi_command(dbi, 0x03, 0x00);
 	mipi_dbi_command(dbi, 0x04, 0x01);
 	mipi_dbi_command(dbi, 0x05, 0x01);
 	mipi_dbi_command(dbi, 0x06, 0x80);
 	mipi_dbi_command(dbi, 0x07, 0x05);
 	mipi_dbi_command(dbi, 0x08, 0x02);
 	mipi_dbi_command(dbi, 0x09, 0x80);
 	mipi_dbi_command(dbi, 0x0a, 0x00);
 	mipi_dbi_command(dbi, 0x0b, 0x00);
 	mipi_dbi_command(dbi, 0x0c, 0x0a);
 	mipi_dbi_command(dbi, 0x0d, 0x0a);
 	mipi_dbi_command(dbi, 0x0e, 0x00);
 	mipi_dbi_command(dbi, 0x0f, 0x00);
 	mipi_dbi_command(dbi, 0x10, 0xe0);
 	mipi_dbi_command(dbi, 0x11, 0xe4);
 	mipi_dbi_command(dbi, 0x12, 0x04);
 	mipi_dbi_command(dbi, 0x13, 0x00);
 	mipi_dbi_command(dbi, 0x14, 0x00);
 	mipi_dbi_command(dbi, 0x15, 0xc0);
 	mipi_dbi_command(dbi, 0x16, 0x08);
 	mipi_dbi_command(dbi, 0x17, 0x00);
 	mipi_dbi_command(dbi, 0x18, 0x00);
 	mipi_dbi_command(dbi, 0x19, 0x00);
 	mipi_dbi_command(dbi, 0x1a, 0x00);
 	mipi_dbi_command(dbi, 0x1b, 0x00);
 	mipi_dbi_command(dbi, 0x1c, 0x00);
 	mipi_dbi_command(dbi, 0x1d, 0x00);
 	mipi_dbi_command(dbi, 0x20, 0x01);
 	mipi_dbi_command(dbi, 0x21, 0x23);
 	mipi_dbi_command(dbi, 0x22, 0x45);
 	mipi_dbi_command(dbi, 0x23, 0x67);
 	mipi_dbi_command(dbi, 0x24, 0x01);
 	mipi_dbi_command(dbi, 0x25, 0x23);
 	mipi_dbi_command(dbi, 0x26, 0x45);
 	mipi_dbi_command(dbi, 0x27, 0x67);
 	mipi_dbi_command(dbi, 0x30, 0x01);
 	mipi_dbi_command(dbi, 0x31, 0x11);
 	mipi_dbi_command(dbi, 0x32, 0x00);
 	mipi_dbi_command(dbi, 0x33, 0xee);
 	mipi_dbi_command(dbi, 0x34, 0xff);
 	mipi_dbi_command(dbi, 0x35, 0xbb);
 	mipi_dbi_command(dbi, 0x36, 0xca);
 	mipi_dbi_command(dbi, 0x37, 0xdd);
 	mipi_dbi_command(dbi, 0x38, 0xac);
 	mipi_dbi_command(dbi, 0x39, 0x76);
 	mipi_dbi_command(dbi, 0x3a, 0x67);
 	mipi_dbi_command(dbi, 0x3b, 0x22);
 	mipi_dbi_command(dbi, 0x3c, 0x22);
 	mipi_dbi_command(dbi, 0x3d, 0x22);
 	mipi_dbi_command(dbi, 0x3e, 0x22);
 	mipi_dbi_command(dbi, 0x3f, 0x22);
 	mipi_dbi_command(dbi, 0x40, 0x22);
 	mipi_dbi_command(dbi, 0x52, 0x10);
 	mipi_dbi_command(dbi, 0x53, 0x10);

 	/* Switch to page 7 */
 	mipi_dbi_command(dbi, 0xff, 0xff, 0x98, 0x06, 0x04, 0x07);
 	mipi_dbi_command(dbi, 0x17, 0x22);
 	mipi_dbi_command(dbi, 0x02, 0x77);
 	mipi_dbi_command(dbi, 0xe1, 0x79);
 	mipi_dbi_command(dbi, 0xb3, 0x10);

 	/* Switch to page 0 */
 	mipi_dbi_command(dbi, 0xff, 0xff, 0x98, 0x06, 0x04, 0x00);
 	mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, 0x00); // 0x36
 	mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE); // 0x11

 	msleep(120);

 	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);

 	msleep(120);
 }

 static const struct drm_display_mode rk050hr345_ct106a_mode = {
 	.width_mm    = 62,
 	.height_mm   = 110,
 	.clock       = 27000,
 	.hdisplay    = 480,
 	.hsync_start = 480 + 10,
 	.hsync_end   = 480 + 10 + 10,
 	.htotal      = 480 + 10 + 10 + 10,
 	.vdisplay    = 854,
 	.vsync_start = 854 + 10,
 	.vsync_end   = 854 + 10 + 10,
 	.vtotal      = 854 + 10 + 10 + 10,
 	.flags       = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
 	.type        = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER,
 };

 static const struct ili9806e_spi_panel_desc rk050hr345_ct106a_desc = {
 	.init_sequence = rk050hr345_ct106a_init,
 	.display_mode = &rk050hr345_ct106a_mode,
 	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
 	.bus_flags = DRM_BUS_FLAG_DE_HIGH |
 		     DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
 };

 static const struct of_device_id ili9806e_spi_of_match[] = {
 	{ .compatible = "rocktech,rk050hr345-ct106a", .data = &rk050hr345_ct106a_desc },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ili9806e_spi_of_match);

 static const struct spi_device_id ili9806e_spi_ids[] = {
 	{ "rk050hr345-ct106a", },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(spi, ili9806e_spi_ids);

 static struct spi_driver ili9806e_spi_driver = {
 	.driver = {
 		.name = "ili9806e-spi",
 		.of_match_table = ili9806e_spi_of_match,
 	},
 	.probe = ili9806e_spi_probe,
 	.remove = ili9806e_spi_remove,
 	.id_table = ili9806e_spi_ids,
 };
 module_spi_driver(ili9806e_spi_driver);

 MODULE_AUTHOR("Dario Binacchi <dario.binacchi@amarulasolutions.com>");
 MODULE_DESCRIPTION("Ilitek ILI9806E LCD SPI Driver");
 MODULE_LICENSE("GPL");
	// SPDX-License-Identifier: GPL-2.0
	/*
	* SPI interface to the Ilitek ILI9806E panel.
	*
	* Copyright (c) 2026 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com>
	*/

	#include <linux/delay.h>
	#include <linux/device.h>
	#include <linux/media-bus-format.h>
	#include <linux/module.h>
	#include <linux/spi/spi.h>

	#include <drm/drm_mipi_dbi.h>
	#include <drm/drm_panel.h>
	#include <drm/drm_print.h>

	#include <video/mipi_display.h>

	#include "panel-ilitek-ili9806e-core.h"

	struct ili9806e_spi_panel {
	struct spi_device *spi;
	struct mipi_dbi dbi;
	const struct ili9806e_spi_panel_desc *desc;
	};

	struct ili9806e_spi_panel_desc {
	const struct drm_display_mode *display_mode;
	u32 bus_format;
	u32 bus_flags;
	void (init_sequence)(struct ili9806e_spi_panel ctx);
	};

	static int ili9806e_spi_off(struct ili9806e_spi_panel *ctx)
	{
	struct mipi_dbi *dbi = &ctx->dbi;

	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF, 0x00);
	mipi_dbi_command(dbi, MIPI_DCS_ENTER_SLEEP_MODE, 0x00);

	return 0;
	}

	static int ili9806e_spi_unprepare(struct drm_panel *panel)
	{
	struct ili9806e_spi_panel *ctx = ili9806e_get_transport(panel);
	struct device *dev = &ctx->spi->dev;
	int ret;

	ili9806e_spi_off(ctx);

	ret = ili9806e_power_off(dev);
	if (ret)
	dev_err(dev, "power off failed: %d\n", ret);

	return 0;
	}

	static int ili9806e_spi_prepare(struct drm_panel *panel)
	{
	struct ili9806e_spi_panel *ctx = ili9806e_get_transport(panel);
	struct device *dev = &ctx->spi->dev;
	int ret;

	ret = ili9806e_power_on(dev);
	if (ret)
	return ret;

	if (ctx->desc->init_sequence)
	ctx->desc->init_sequence(ctx);

	return 0;
	}

	static int ili9806e_spi_get_modes(struct drm_panel *panel,
	struct drm_connector *connector)
	{
	struct ili9806e_spi_panel *ctx = ili9806e_get_transport(panel);
	const struct ili9806e_spi_panel_desc *desc = ctx->desc;
	struct drm_display_mode *mode;

	mode = drm_mode_duplicate(connector->dev, desc->display_mode);
	if (!mode)
	return -ENOMEM;

	drm_mode_set_name(mode);

	connector->display_info.width_mm = mode->width_mm;
	connector->display_info.height_mm = mode->height_mm;
	connector->display_info.bus_flags = desc->bus_flags;
	drm_display_info_set_bus_formats(&connector->display_info,
	&desc->bus_format, 1);

	drm_mode_probed_add(connector, mode);

	return 1;
	}

	static const struct drm_panel_funcs ili9806e_spi_funcs = {
	.unprepare = ili9806e_spi_unprepare,
	.prepare = ili9806e_spi_prepare,
	.get_modes = ili9806e_spi_get_modes,
	};

	static int ili9806e_spi_probe(struct spi_device *spi)
	{
	struct device *dev = &spi->dev;
	struct ili9806e_spi_panel *ctx;
	int err;

	ctx = devm_kzalloc(dev, sizeof(struct ili9806e_spi_panel), GFP_KERNEL);
	if (!ctx)
	return -ENOMEM;

	ctx->spi = spi;
	ctx->desc = device_get_match_data(dev);

	err = mipi_dbi_spi_init(spi, &ctx->dbi, NULL);
	if (err)
	return dev_err_probe(dev, err, "MIPI DBI init failed\n");

	return ili9806e_probe(dev, ctx, &ili9806e_spi_funcs,
	DRM_MODE_CONNECTOR_DPI);
	}

	static void ili9806e_spi_remove(struct spi_device *spi)
	{
	ili9806e_remove(&spi->dev);
	}

	static void rk050hr345_ct106a_init(struct ili9806e_spi_panel *ctx)
	{
	struct mipi_dbi *dbi = &ctx->dbi;

	/* Switch to page 1 */
	mipi_dbi_command(dbi, 0xff, 0xff, 0x98, 0x06, 0x04, 0x01);
	/* Interface Settings */
	mipi_dbi_command(dbi, 0x08, 0x10);
	mipi_dbi_command(dbi, 0x21, 0x01);
	/* Panel Settings */
	mipi_dbi_command(dbi, 0x30, 0x01);
	mipi_dbi_command(dbi, 0x31, 0x00);
	/* Power Control */
	mipi_dbi_command(dbi, 0x40, 0x15);
	mipi_dbi_command(dbi, 0x41, 0x44);
	mipi_dbi_command(dbi, 0x42, 0x03);
	mipi_dbi_command(dbi, 0x43, 0x09);
	mipi_dbi_command(dbi, 0x44, 0x09);
	mipi_dbi_command(dbi, 0x50, 0x78);
	mipi_dbi_command(dbi, 0x51, 0x78);
	mipi_dbi_command(dbi, 0x52, 0x00);
	mipi_dbi_command(dbi, 0x53, 0x3a);
	mipi_dbi_command(dbi, 0x57, 0x50);
	/* Timing Control */
	mipi_dbi_command(dbi, 0x60, 0x07);
	mipi_dbi_command(dbi, 0x61, 0x00);
	mipi_dbi_command(dbi, 0x62, 0x08);
	mipi_dbi_command(dbi, 0x63, 0x00);
	/* Gamma Settings */
	mipi_dbi_command(dbi, 0xa0, 0x00);
	mipi_dbi_command(dbi, 0xa1, 0x03);
	mipi_dbi_command(dbi, 0xa2, 0x0b);
	mipi_dbi_command(dbi, 0xa3, 0x0f);
	mipi_dbi_command(dbi, 0xa4, 0x0b);
	mipi_dbi_command(dbi, 0xa5, 0x1b);
	mipi_dbi_command(dbi, 0xa6, 0x0a);
	mipi_dbi_command(dbi, 0xa7, 0x0a);
	mipi_dbi_command(dbi, 0xa8, 0x02);
	mipi_dbi_command(dbi, 0xa9, 0x07);
	mipi_dbi_command(dbi, 0xaa, 0x05);
	mipi_dbi_command(dbi, 0xab, 0x03);
	mipi_dbi_command(dbi, 0xac, 0x0e);
	mipi_dbi_command(dbi, 0xad, 0x32);
	mipi_dbi_command(dbi, 0xae, 0x2d);
	mipi_dbi_command(dbi, 0xaf, 0x00);
	mipi_dbi_command(dbi, 0xc0, 0x00);
	mipi_dbi_command(dbi, 0xc1, 0x03);
	mipi_dbi_command(dbi, 0xc2, 0x0e);
	mipi_dbi_command(dbi, 0xc3, 0x10);
	mipi_dbi_command(dbi, 0xc4, 0x09);
	mipi_dbi_command(dbi, 0xc5, 0x17);
	mipi_dbi_command(dbi, 0xc6, 0x09);
	mipi_dbi_command(dbi, 0xc7, 0x07);
	mipi_dbi_command(dbi, 0xc8, 0x04);
	mipi_dbi_command(dbi, 0xc9, 0x09);
	mipi_dbi_command(dbi, 0xca, 0x06);
	mipi_dbi_command(dbi, 0xcb, 0x06);
	mipi_dbi_command(dbi, 0xcc, 0x0c);
	mipi_dbi_command(dbi, 0xcd, 0x25);
	mipi_dbi_command(dbi, 0xce, 0x20);
	mipi_dbi_command(dbi, 0xcf, 0x00);

	/* Switch to page 6 */
	mipi_dbi_command(dbi, 0xff, 0xff, 0x98, 0x06, 0x04, 0x06);
	/* GIP settings */
	mipi_dbi_command(dbi, 0x00, 0x21);
	mipi_dbi_command(dbi, 0x01, 0x09);
	mipi_dbi_command(dbi, 0x02, 0x00);
	mipi_dbi_command(dbi, 0x03, 0x00);
	mipi_dbi_command(dbi, 0x04, 0x01);
	mipi_dbi_command(dbi, 0x05, 0x01);
	mipi_dbi_command(dbi, 0x06, 0x80);
	mipi_dbi_command(dbi, 0x07, 0x05);
	mipi_dbi_command(dbi, 0x08, 0x02);
	mipi_dbi_command(dbi, 0x09, 0x80);
	mipi_dbi_command(dbi, 0x0a, 0x00);
	mipi_dbi_command(dbi, 0x0b, 0x00);
	mipi_dbi_command(dbi, 0x0c, 0x0a);
	mipi_dbi_command(dbi, 0x0d, 0x0a);
	mipi_dbi_command(dbi, 0x0e, 0x00);
	mipi_dbi_command(dbi, 0x0f, 0x00);
	mipi_dbi_command(dbi, 0x10, 0xe0);
	mipi_dbi_command(dbi, 0x11, 0xe4);
	mipi_dbi_command(dbi, 0x12, 0x04);
	mipi_dbi_command(dbi, 0x13, 0x00);
	mipi_dbi_command(dbi, 0x14, 0x00);
	mipi_dbi_command(dbi, 0x15, 0xc0);
	mipi_dbi_command(dbi, 0x16, 0x08);
	mipi_dbi_command(dbi, 0x17, 0x00);
	mipi_dbi_command(dbi, 0x18, 0x00);
	mipi_dbi_command(dbi, 0x19, 0x00);
	mipi_dbi_command(dbi, 0x1a, 0x00);
	mipi_dbi_command(dbi, 0x1b, 0x00);
	mipi_dbi_command(dbi, 0x1c, 0x00);
	mipi_dbi_command(dbi, 0x1d, 0x00);
	mipi_dbi_command(dbi, 0x20, 0x01);
	mipi_dbi_command(dbi, 0x21, 0x23);
	mipi_dbi_command(dbi, 0x22, 0x45);
	mipi_dbi_command(dbi, 0x23, 0x67);
	mipi_dbi_command(dbi, 0x24, 0x01);
	mipi_dbi_command(dbi, 0x25, 0x23);
	mipi_dbi_command(dbi, 0x26, 0x45);
	mipi_dbi_command(dbi, 0x27, 0x67);
	mipi_dbi_command(dbi, 0x30, 0x01);
	mipi_dbi_command(dbi, 0x31, 0x11);
	mipi_dbi_command(dbi, 0x32, 0x00);
	mipi_dbi_command(dbi, 0x33, 0xee);
	mipi_dbi_command(dbi, 0x34, 0xff);
	mipi_dbi_command(dbi, 0x35, 0xbb);
	mipi_dbi_command(dbi, 0x36, 0xca);
	mipi_dbi_command(dbi, 0x37, 0xdd);
	mipi_dbi_command(dbi, 0x38, 0xac);
	mipi_dbi_command(dbi, 0x39, 0x76);
	mipi_dbi_command(dbi, 0x3a, 0x67);
	mipi_dbi_command(dbi, 0x3b, 0x22);
	mipi_dbi_command(dbi, 0x3c, 0x22);
	mipi_dbi_command(dbi, 0x3d, 0x22);
	mipi_dbi_command(dbi, 0x3e, 0x22);
	mipi_dbi_command(dbi, 0x3f, 0x22);
	mipi_dbi_command(dbi, 0x40, 0x22);
	mipi_dbi_command(dbi, 0x52, 0x10);
	mipi_dbi_command(dbi, 0x53, 0x10);

	/* Switch to page 7 */
	mipi_dbi_command(dbi, 0xff, 0xff, 0x98, 0x06, 0x04, 0x07);
	mipi_dbi_command(dbi, 0x17, 0x22);
	mipi_dbi_command(dbi, 0x02, 0x77);
	mipi_dbi_command(dbi, 0xe1, 0x79);
	mipi_dbi_command(dbi, 0xb3, 0x10);

	/* Switch to page 0 */
	mipi_dbi_command(dbi, 0xff, 0xff, 0x98, 0x06, 0x04, 0x00);
	mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, 0x00); // 0x36
	mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE); // 0x11

	msleep(120);

	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);

	msleep(120);
	}

	static const struct drm_display_mode rk050hr345_ct106a_mode = {
	.width_mm = 62,
	.height_mm = 110,
	.clock = 27000,
	.hdisplay = 480,
	.hsync_start = 480 + 10,
	.hsync_end = 480 + 10 + 10,
	.htotal = 480 + 10 + 10 + 10,
	.vdisplay = 854,
	.vsync_start = 854 + 10,
	.vsync_end = 854 + 10 + 10,
	.vtotal = 854 + 10 + 10 + 10,
	.flags = DRM_MODE_FLAG_NHSYNC \| DRM_MODE_FLAG_NVSYNC,
	.type = DRM_MODE_TYPE_PREFERRED \| DRM_MODE_TYPE_DRIVER,
	};

	static const struct ili9806e_spi_panel_desc rk050hr345_ct106a_desc = {
	.init_sequence = rk050hr345_ct106a_init,
	.display_mode = &rk050hr345_ct106a_mode,
	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
	.bus_flags = DRM_BUS_FLAG_DE_HIGH \|
	DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE,
	};

	static const struct of_device_id ili9806e_spi_of_match[] = {
	{ .compatible = "rocktech,rk050hr345-ct106a", .data = &rk050hr345_ct106a_desc },
	{ }
	};
	MODULE_DEVICE_TABLE(of, ili9806e_spi_of_match);

	static const struct spi_device_id ili9806e_spi_ids[] = {
	{ "rk050hr345-ct106a", },
	{ /* sentinel */ }
	};
	MODULE_DEVICE_TABLE(spi, ili9806e_spi_ids);

	static struct spi_driver ili9806e_spi_driver = {
	.driver = {
	.name = "ili9806e-spi",
	.of_match_table = ili9806e_spi_of_match,
	},
	.probe = ili9806e_spi_probe,
	.remove = ili9806e_spi_remove,
	.id_table = ili9806e_spi_ids,
	};
	module_spi_driver(ili9806e_spi_driver);

	MODULE_AUTHOR("Dario Binacchi <dario.binacchi@amarulasolutions.com>");
	MODULE_DESCRIPTION("Ilitek ILI9806E LCD SPI Driver");
	MODULE_LICENSE("GPL");