// SPDX-License-Identifier: GPL-2.0-only
/*
 * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree:
 * Copyright (c) 2013, The Linux Foundation. All rights reserved.
 * Copyright (c) 2025, Eugene Lepshy <fekz115@gmail.com>
 * Copyright (c) 2025, Danila Tikhonov <danila@jiaxyga.com>
 */

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

#include <video/mipi_display.h>

#include <drm/display/drm_dsc.h>
#include <drm/display/drm_dsc_helper.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
#include <drm/drm_probe_helper.h>

struct visionox_rm692e5 {
	struct drm_panel panel;
	struct mipi_dsi_device *dsi;
	struct drm_dsc_config dsc;
	struct gpio_desc *reset_gpio;
	struct regulator_bulk_data *supplies;
};

static const struct regulator_bulk_data visionox_rm692e5_supplies[] = {
	{ .supply = "vddio" },	/* 1p8 */
	{ .supply = "vdd" },	/* 3p3 */
};

static inline
struct visionox_rm692e5 *to_visionox_rm692e5(struct drm_panel *panel)
{
	return container_of(panel, struct visionox_rm692e5, panel);
}

static void visionox_rm692e5_reset(struct visionox_rm692e5 *ctx)
{
	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
	usleep_range(10000, 11000);
	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
	usleep_range(1000, 2000);
	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
	msleep(32);
}

static int visionox_rm692e5_on(struct visionox_rm692e5 *ctx)
{
	struct mipi_dsi_device *dsi = ctx->dsi;
	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };

	dsi->mode_flags |= MIPI_DSI_MODE_LPM;

	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x40);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbd, 0x07);
	mipi_dsi_usleep_range(&dsi_ctx, 17000, 18000);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0xd2);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x50, 0x11);
	mipi_dsi_dcs_set_display_brightness_multi(&dsi_ctx, 0x00ab);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x52, 0x30);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x09);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x54, 0x60);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_POWER_SAVE, 0x04);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x56, 0x38);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x58, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x59, 0x14);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5a, 0x02);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5b, 0x1c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5c, 0x02);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5d, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_SET_CABC_MIN_BRIGHTNESS, 0x20);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x5f, 0x01);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x60, 0xe8);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x61, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x62, 0x07);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x63, 0x0c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x64, 0x05);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x0e);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x66, 0x05);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x67, 0x16);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x68, 0x18);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x69, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6a, 0x10);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6b, 0xf0);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6c, 0x07);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6d, 0x10);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6e, 0x20);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6f, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x70, 0x06);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x71, 0x0f);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x72, 0x0f);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x73, 0x33);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x74, 0x0e);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x75, 0x1c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x76, 0x2a);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x77, 0x38);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x78, 0x46);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x79, 0x54);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7a, 0x62);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7b, 0x69);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7c, 0x70);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7d, 0x77);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7e, 0x79);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x7f, 0x7b);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x80, 0x7d);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x81, 0x7e);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x82, 0x01);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x83, 0x02);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x84, 0x22);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x85, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x86, 0x2a);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x87, 0x40);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x88, 0x2a);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x89, 0xbe);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8a, 0x3a);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8b, 0xfc);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8c, 0x3a);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8d, 0xfa);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8e, 0x3a);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x8f, 0xf8);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x90, 0x3b);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x91, 0x38);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x92, 0x3b);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x93, 0x78);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x94, 0x3b);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x95, 0xb6);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x96, 0x4b);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x97, 0xf6);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x98, 0x4c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x99, 0x34);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9a, 0x4c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9b, 0x74);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9c, 0x5c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9d, 0x74);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9e, 0x8c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x9f, 0xf4);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_READ_PPS_START, 0x02);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa3, 0x1c);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa4, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa5, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa6, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa7, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_READ_PPS_CONTINUE, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xaa, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa0, 0x80);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0xa1);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcd, 0x6b);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xce, 0xbb);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0xd1);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb4, 0x01);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x38);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x17, 0x0f);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x18, 0x0f);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfe, 0x00);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfa, 0x01);
	mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xc2, 0x08);
	mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
	mipi_dsi_dcs_set_display_brightness_multi(&dsi_ctx, 0x000d);
	mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
	mipi_dsi_msleep(&dsi_ctx, 50);
	mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
	mipi_dsi_usleep_range(&dsi_ctx, 1000, 2000);

	return dsi_ctx.accum_err;
}

static int visionox_rm692e5_disable(struct drm_panel *panel)
{
	struct visionox_rm692e5 *ctx = to_visionox_rm692e5(panel);
	struct mipi_dsi_device *dsi = ctx->dsi;
	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };

	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;

	mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
	mipi_dsi_usleep_range(&dsi_ctx, 1000, 2000);
	mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
	mipi_dsi_usleep_range(&dsi_ctx, 1000, 2000);

	return dsi_ctx.accum_err;
}

static int visionox_rm692e5_prepare(struct drm_panel *panel)
{
	struct visionox_rm692e5 *ctx = to_visionox_rm692e5(panel);
	struct drm_dsc_picture_parameter_set pps;
	struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
	int ret;

	ret = regulator_bulk_enable(ARRAY_SIZE(visionox_rm692e5_supplies),
				    ctx->supplies);
	if (ret < 0)
		return ret;

	visionox_rm692e5_reset(ctx);

	ret = visionox_rm692e5_on(ctx);
	if (ret < 0) {
		gpiod_set_value_cansleep(ctx->reset_gpio, 1);
		goto err;
	}

	drm_dsc_pps_payload_pack(&pps, &ctx->dsc);
	mipi_dsi_picture_parameter_set_multi(&dsi_ctx, &pps);
	mipi_dsi_compression_mode_ext_multi(&dsi_ctx, true, MIPI_DSI_COMPRESSION_DSC, 0);

	mipi_dsi_msleep(&dsi_ctx, 28);

	if (dsi_ctx.accum_err < 0) {
		ret = dsi_ctx.accum_err;
		goto err;
	}

	return dsi_ctx.accum_err;
err:
	regulator_bulk_disable(ARRAY_SIZE(visionox_rm692e5_supplies),
			ctx->supplies);
	return ret;
}

static int visionox_rm692e5_unprepare(struct drm_panel *panel)
{
	struct visionox_rm692e5 *ctx = to_visionox_rm692e5(panel);

	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
	regulator_bulk_disable(ARRAY_SIZE(visionox_rm692e5_supplies),
			       ctx->supplies);

	return 0;
}

static const struct drm_display_mode visionox_rm692e5_modes[] = {
	/* Let's initialize the highest frequency first */
	{ /* 120Hz mode */
		.clock = (1080 + 26 + 39 + 36) * (2400 + 16 + 21 + 16) * 120 / 1000,
		.hdisplay = 1080,
		.hsync_start = 1080 + 26,
		.hsync_end = 1080 + 26 + 39,
		.htotal = 1080 + 26 + 39 + 36,
		.vdisplay = 2400,
		.vsync_start = 2400 + 16,
		.vsync_end = 2400 + 16 + 21,
		.vtotal = 2400 + 16 + 21 + 16,
		.width_mm = 68,
		.height_mm = 152,
		.type = DRM_MODE_TYPE_DRIVER,
	},
	{ /* 90Hz mode */
		.clock = (1080 + 26 + 39 + 36) * (2400 + 16 + 21 + 16) * 90 / 1000,
		.hdisplay = 1080,
		.hsync_start = 1080 + 26,
		.hsync_end = 1080 + 26 + 39,
		.htotal = 1080 + 26 + 39 + 36,
		.vdisplay = 2400,
		.vsync_start = 2400 + 16,
		.vsync_end = 2400 + 16 + 21,
		.vtotal = 2400 + 16 + 21 + 16,
		.width_mm = 68,
		.height_mm = 152,
		.type = DRM_MODE_TYPE_DRIVER,
	},
	{ /* 60Hz mode */
		.clock = (1080 + 26 + 39 + 36) * (2400 + 16 + 21 + 16) * 60 / 1000,
		.hdisplay = 1080,
		.hsync_start = 1080 + 26,
		.hsync_end = 1080 + 26 + 39,
		.htotal = 1080 + 26 + 39 + 36,
		.vdisplay = 2400,
		.vsync_start = 2400 + 16,
		.vsync_end = 2400 + 16 + 21,
		.vtotal = 2400 + 16 + 21 + 16,
		.width_mm = 68,
		.height_mm = 152,
		.type = DRM_MODE_TYPE_DRIVER,
	},
};

static int visionox_rm692e5_get_modes(struct drm_panel *panel,
						   struct drm_connector *connector)
{
	int count = 0;

	for (int i = 0; i < ARRAY_SIZE(visionox_rm692e5_modes); i++)
		count += drm_connector_helper_get_modes_fixed(connector,
						    &visionox_rm692e5_modes[i]);

	return count;
}

static const struct drm_panel_funcs visionox_rm692e5_panel_funcs = {
	.prepare = visionox_rm692e5_prepare,
	.unprepare = visionox_rm692e5_unprepare,
	.disable = visionox_rm692e5_disable,
	.get_modes = visionox_rm692e5_get_modes,
};

static int visionox_rm692e5_bl_update_status(struct backlight_device *bl)
{
	struct mipi_dsi_device *dsi = bl_get_data(bl);
	u16 brightness = backlight_get_brightness(bl);
	int ret;

	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;

	ret = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
	if (ret < 0)
		return ret;

	dsi->mode_flags |= MIPI_DSI_MODE_LPM;

	return 0;
}

static int visionox_rm692e5_bl_get_brightness(struct backlight_device *bl)
{
	struct mipi_dsi_device *dsi = bl_get_data(bl);
	u16 brightness;
	int ret;

	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;

	ret = mipi_dsi_dcs_get_display_brightness_large(dsi, &brightness);
	if (ret < 0)
		return ret;

	dsi->mode_flags |= MIPI_DSI_MODE_LPM;

	return brightness;
}

static const struct backlight_ops visionox_rm692e5_bl_ops = {
	.update_status = visionox_rm692e5_bl_update_status,
	.get_brightness = visionox_rm692e5_bl_get_brightness,
};

static struct backlight_device *
visionox_rm692e5_create_backlight(struct mipi_dsi_device *dsi)
{
	struct device *dev = &dsi->dev;
	const struct backlight_properties props = {
		.type = BACKLIGHT_RAW,
		.brightness = 2047,
		.max_brightness = 4095,
	};

	return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
					      &visionox_rm692e5_bl_ops, &props);
}

static int visionox_rm692e5_probe(struct mipi_dsi_device *dsi)
{
	struct device *dev = &dsi->dev;
	struct visionox_rm692e5 *ctx;
	int ret;

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

	ret = devm_regulator_bulk_get_const(&dsi->dev,
					    ARRAY_SIZE(visionox_rm692e5_supplies),
					    visionox_rm692e5_supplies,
					    &ctx->supplies);
	if (ret < 0)
		return dev_err_probe(dev, ret, "Failed to get regulators\n");

	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
	if (IS_ERR(ctx->reset_gpio))
		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
				     "Failed to get reset-gpios\n");

	ctx->dsi = dsi;
	mipi_dsi_set_drvdata(dsi, ctx);

	dsi->lanes = 4;
	dsi->format = MIPI_DSI_FMT_RGB888;
	dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS;

	drm_panel_init(&ctx->panel, dev, &visionox_rm692e5_panel_funcs,
		       DRM_MODE_CONNECTOR_DSI);
	ctx->panel.prepare_prev_first = true;

	ctx->panel.backlight = visionox_rm692e5_create_backlight(dsi);
	if (IS_ERR(ctx->panel.backlight))
		return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
				     "Failed to create backlight\n");

	drm_panel_add(&ctx->panel);

	dsi->dsc = &ctx->dsc;
	ctx->dsc.dsc_version_major = 1;
	ctx->dsc.dsc_version_minor = 1;
	ctx->dsc.slice_height = 20;
	ctx->dsc.slice_width = 540;
	ctx->dsc.slice_count = 1080 / ctx->dsc.slice_width;
	ctx->dsc.bits_per_component = 10;
	ctx->dsc.bits_per_pixel = 8 << 4;
	ctx->dsc.block_pred_enable = true;

	ret = devm_mipi_dsi_attach(dev, dsi);
	if (ret < 0) {
		drm_panel_remove(&ctx->panel);
		return dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
	}

	return 0;
}

static void visionox_rm692e5_remove(struct mipi_dsi_device *dsi)
{
	struct visionox_rm692e5 *ctx = mipi_dsi_get_drvdata(dsi);

	drm_panel_remove(&ctx->panel);
}

static const struct of_device_id visionox_rm692e5_of_match[] = {
	{ .compatible = "visionox,rm692e5" },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, visionox_rm692e5_of_match);

static struct mipi_dsi_driver visionox_rm692e5_driver = {
	.probe = visionox_rm692e5_probe,
	.remove = visionox_rm692e5_remove,
	.driver = {
		.name = "panel-visionox-rm692e5",
		.of_match_table = visionox_rm692e5_of_match,
	},
};
module_mipi_dsi_driver(visionox_rm692e5_driver);

MODULE_AUTHOR("Eugene Lepshy <fekz115@gmail.com>");
MODULE_AUTHOR("Danila Tikhonov <danila@jiaxyga.com>");
MODULE_DESCRIPTION("DRM driver for Visionox RM692E5 cmd mode dsi panel");
MODULE_LICENSE("GPL");