root/drivers/gpu/drm/panel/panel-boe-himax8279d.c
// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2019, Huaqin Telecom Technology Co., Ltd
 *
 * Author: Jerry Han <jerry.han.hq@gmail.com>
 *
 */

#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>

#include <linux/gpio/consumer.h>
#include <linux/regulator/consumer.h>

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

#include <video/mipi_display.h>

struct panel_cmd {
        char cmd;
        char data;
};

struct panel_desc {
        const struct drm_display_mode *display_mode;
        unsigned int bpc;
        unsigned int width_mm;
        unsigned int height_mm;

        unsigned long mode_flags;
        enum mipi_dsi_pixel_format format;
        unsigned int lanes;
        const struct panel_cmd *on_cmds;
        unsigned int on_cmds_num;
};

struct panel_info {
        struct drm_panel base;
        struct mipi_dsi_device *link;
        const struct panel_desc *desc;

        struct gpio_desc *enable_gpio;
        struct gpio_desc *pp33_gpio;
        struct gpio_desc *pp18_gpio;
};

static inline struct panel_info *to_panel_info(struct drm_panel *panel)
{
        return container_of(panel, struct panel_info, base);
}

static void disable_gpios(struct panel_info *pinfo)
{
        gpiod_set_value(pinfo->enable_gpio, 0);
        gpiod_set_value(pinfo->pp33_gpio, 0);
        gpiod_set_value(pinfo->pp18_gpio, 0);
}

static int send_mipi_cmds(struct drm_panel *panel, const struct panel_cmd *cmds)
{
        struct panel_info *pinfo = to_panel_info(panel);
        unsigned int i = 0;
        int err;

        for (i = 0; i < pinfo->desc->on_cmds_num; i++) {
                err = mipi_dsi_dcs_write_buffer(pinfo->link, &cmds[i],
                                                sizeof(struct panel_cmd));

                if (err < 0)
                        return err;
        }

        return 0;
}

static int boe_panel_disable(struct drm_panel *panel)
{
        struct panel_info *pinfo = to_panel_info(panel);
        int err;

        err = mipi_dsi_dcs_set_display_off(pinfo->link);
        if (err < 0) {
                dev_err(panel->dev, "failed to set display off: %d\n", err);
                return err;
        }

        return 0;
}

static int boe_panel_unprepare(struct drm_panel *panel)
{
        struct panel_info *pinfo = to_panel_info(panel);
        int err;

        err = mipi_dsi_dcs_set_display_off(pinfo->link);
        if (err < 0)
                dev_err(panel->dev, "failed to set display off: %d\n", err);

        err = mipi_dsi_dcs_enter_sleep_mode(pinfo->link);
        if (err < 0)
                dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);

        /* sleep_mode_delay: 1ms - 2ms */
        usleep_range(1000, 2000);

        disable_gpios(pinfo);

        return 0;
}

static int boe_panel_prepare(struct drm_panel *panel)
{
        struct panel_info *pinfo = to_panel_info(panel);
        int err;

        gpiod_set_value(pinfo->pp18_gpio, 1);
        /* T1: 5ms - 6ms */
        usleep_range(5000, 6000);
        gpiod_set_value(pinfo->pp33_gpio, 1);

        /* reset sequence */
        /* T2: 14ms - 15ms */
        usleep_range(14000, 15000);
        gpiod_set_value(pinfo->enable_gpio, 1);

        /* T3: 1ms - 2ms */
        usleep_range(1000, 2000);
        gpiod_set_value(pinfo->enable_gpio, 0);

        /* T4: 1ms - 2ms */
        usleep_range(1000, 2000);
        gpiod_set_value(pinfo->enable_gpio, 1);

        /* T5: 5ms - 6ms */
        usleep_range(5000, 6000);

        /* send init code */
        err = send_mipi_cmds(panel, pinfo->desc->on_cmds);
        if (err < 0) {
                dev_err(panel->dev, "failed to send DCS Init Code: %d\n", err);
                goto poweroff;
        }

        err = mipi_dsi_dcs_exit_sleep_mode(pinfo->link);
        if (err < 0) {
                dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);
                goto poweroff;
        }

        /* T6: 120ms - 121ms */
        usleep_range(120000, 121000);

        err = mipi_dsi_dcs_set_display_on(pinfo->link);
        if (err < 0) {
                dev_err(panel->dev, "failed to set display on: %d\n", err);
                goto poweroff;
        }

        /* T7: 20ms - 21ms */
        usleep_range(20000, 21000);

        return 0;

poweroff:
        disable_gpios(pinfo);
        return err;
}

static int boe_panel_enable(struct drm_panel *panel)
{
        struct panel_info *pinfo = to_panel_info(panel);
        int ret;

        usleep_range(120000, 121000);

        ret = mipi_dsi_dcs_set_display_on(pinfo->link);
        if (ret < 0) {
                dev_err(panel->dev, "failed to set display on: %d\n", ret);
                return ret;
        }

        return 0;
}

static int boe_panel_get_modes(struct drm_panel *panel,
                               struct drm_connector *connector)
{
        struct panel_info *pinfo = to_panel_info(panel);
        const struct drm_display_mode *m = pinfo->desc->display_mode;
        struct drm_display_mode *mode;

        mode = drm_mode_duplicate(connector->dev, m);
        if (!mode) {
                dev_err(pinfo->base.dev, "failed to add mode %ux%u@%u\n",
                        m->hdisplay, m->vdisplay, drm_mode_vrefresh(m));
                return -ENOMEM;
        }

        drm_mode_set_name(mode);

        drm_mode_probed_add(connector, mode);

        connector->display_info.width_mm = pinfo->desc->width_mm;
        connector->display_info.height_mm = pinfo->desc->height_mm;
        connector->display_info.bpc = pinfo->desc->bpc;

        return 1;
}

static const struct drm_panel_funcs panel_funcs = {
        .disable = boe_panel_disable,
        .unprepare = boe_panel_unprepare,
        .prepare = boe_panel_prepare,
        .enable = boe_panel_enable,
        .get_modes = boe_panel_get_modes,
};

static const struct drm_display_mode default_display_mode = {
        .clock = 159420,
        .hdisplay = 1200,
        .hsync_start = 1200 + 80,
        .hsync_end = 1200 + 80 + 60,
        .htotal = 1200 + 80 + 60 + 24,
        .vdisplay = 1920,
        .vsync_start = 1920 + 10,
        .vsync_end = 1920 + 10 + 14,
        .vtotal = 1920 + 10 + 14 + 4,
};

/* 8 inch */
static const struct panel_cmd boe_himax8279d8p_on_cmds[] = {
        { 0xB0, 0x05 },
        { 0xB1, 0xE5 },
        { 0xB3, 0x52 },
        { 0xC0, 0x00 },
        { 0xC2, 0x57 },
        { 0xD9, 0x85 },
        { 0xB0, 0x01 },
        { 0xC8, 0x00 },
        { 0xC9, 0x00 },
        { 0xCC, 0x26 },
        { 0xCD, 0x26 },
        { 0xDC, 0x00 },
        { 0xDD, 0x00 },
        { 0xE0, 0x26 },
        { 0xE1, 0x26 },
        { 0xB0, 0x03 },
        { 0xC3, 0x2A },
        { 0xE7, 0x2A },
        { 0xC5, 0x2A },
        { 0xDE, 0x2A },
        { 0xBC, 0x02 },
        { 0xCB, 0x02 },
        { 0xB0, 0x00 },
        { 0xB6, 0x03 },
        { 0xBA, 0x8B },
        { 0xBF, 0x15 },
        { 0xC0, 0x18 },
        { 0xC2, 0x14 },
        { 0xC3, 0x02 },
        { 0xC4, 0x14 },
        { 0xC5, 0x02 },
        { 0xCC, 0x0A },
        { 0xB0, 0x06 },
        { 0xC0, 0xA5 },
        { 0xD5, 0x20 },
        { 0xC0, 0x00 },
        { 0xB0, 0x02 },
        { 0xC0, 0x00 },
        { 0xC1, 0x02 },
        { 0xC2, 0x06 },
        { 0xC3, 0x16 },
        { 0xC4, 0x0E },
        { 0xC5, 0x18 },
        { 0xC6, 0x26 },
        { 0xC7, 0x32 },
        { 0xC8, 0x3F },
        { 0xC9, 0x3F },
        { 0xCA, 0x3F },
        { 0xCB, 0x3F },
        { 0xCC, 0x3D },
        { 0xCD, 0x2F },
        { 0xCE, 0x2F },
        { 0xCF, 0x2F },
        { 0xD0, 0x07 },
        { 0xD2, 0x00 },
        { 0xD3, 0x02 },
        { 0xD4, 0x06 },
        { 0xD5, 0x12 },
        { 0xD6, 0x0A },
        { 0xD7, 0x14 },
        { 0xD8, 0x22 },
        { 0xD9, 0x2E },
        { 0xDA, 0x3D },
        { 0xDB, 0x3F },
        { 0xDC, 0x3F },
        { 0xDD, 0x3F },
        { 0xDE, 0x3D },
        { 0xDF, 0x2F },
        { 0xE0, 0x2F },
        { 0xE1, 0x2F },
        { 0xE2, 0x07 },
        { 0xB0, 0x07 },
        { 0xB1, 0x18 },
        { 0xB2, 0x19 },
        { 0xB3, 0x2E },
        { 0xB4, 0x52 },
        { 0xB5, 0x72 },
        { 0xB6, 0x8C },
        { 0xB7, 0xBD },
        { 0xB8, 0xEB },
        { 0xB9, 0x47 },
        { 0xBA, 0x96 },
        { 0xBB, 0x1E },
        { 0xBC, 0x90 },
        { 0xBD, 0x93 },
        { 0xBE, 0xFA },
        { 0xBF, 0x56 },
        { 0xC0, 0x8C },
        { 0xC1, 0xB7 },
        { 0xC2, 0xCC },
        { 0xC3, 0xDF },
        { 0xC4, 0xE8 },
        { 0xC5, 0xF0 },
        { 0xC6, 0xF8 },
        { 0xC7, 0xFA },
        { 0xC8, 0xFC },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x5A },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x08 },
        { 0xB1, 0x04 },
        { 0xB2, 0x15 },
        { 0xB3, 0x2D },
        { 0xB4, 0x51 },
        { 0xB5, 0x72 },
        { 0xB6, 0x8D },
        { 0xB7, 0xBE },
        { 0xB8, 0xED },
        { 0xB9, 0x4A },
        { 0xBA, 0x9A },
        { 0xBB, 0x23 },
        { 0xBC, 0x95 },
        { 0xBD, 0x98 },
        { 0xBE, 0xFF },
        { 0xBF, 0x59 },
        { 0xC0, 0x8E },
        { 0xC1, 0xB9 },
        { 0xC2, 0xCD },
        { 0xC3, 0xDF },
        { 0xC4, 0xE8 },
        { 0xC5, 0xF0 },
        { 0xC6, 0xF8 },
        { 0xC7, 0xFA },
        { 0xC8, 0xFC },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x5A },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x09 },
        { 0xB1, 0x04 },
        { 0xB2, 0x2C },
        { 0xB3, 0x36 },
        { 0xB4, 0x53 },
        { 0xB5, 0x73 },
        { 0xB6, 0x8E },
        { 0xB7, 0xC0 },
        { 0xB8, 0xEF },
        { 0xB9, 0x4C },
        { 0xBA, 0x9D },
        { 0xBB, 0x25 },
        { 0xBC, 0x96 },
        { 0xBD, 0x9A },
        { 0xBE, 0x01 },
        { 0xBF, 0x59 },
        { 0xC0, 0x8E },
        { 0xC1, 0xB9 },
        { 0xC2, 0xCD },
        { 0xC3, 0xDF },
        { 0xC4, 0xE8 },
        { 0xC5, 0xF0 },
        { 0xC6, 0xF8 },
        { 0xC7, 0xFA },
        { 0xC8, 0xFC },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x5A },
        { 0xCC, 0xBF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x0A },
        { 0xB1, 0x18 },
        { 0xB2, 0x19 },
        { 0xB3, 0x2E },
        { 0xB4, 0x52 },
        { 0xB5, 0x72 },
        { 0xB6, 0x8C },
        { 0xB7, 0xBD },
        { 0xB8, 0xEB },
        { 0xB9, 0x47 },
        { 0xBA, 0x96 },
        { 0xBB, 0x1E },
        { 0xBC, 0x90 },
        { 0xBD, 0x93 },
        { 0xBE, 0xFA },
        { 0xBF, 0x56 },
        { 0xC0, 0x8C },
        { 0xC1, 0xB7 },
        { 0xC2, 0xCC },
        { 0xC3, 0xDF },
        { 0xC4, 0xE8 },
        { 0xC5, 0xF0 },
        { 0xC6, 0xF8 },
        { 0xC7, 0xFA },
        { 0xC8, 0xFC },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x5A },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x0B },
        { 0xB1, 0x04 },
        { 0xB2, 0x15 },
        { 0xB3, 0x2D },
        { 0xB4, 0x51 },
        { 0xB5, 0x72 },
        { 0xB6, 0x8D },
        { 0xB7, 0xBE },
        { 0xB8, 0xED },
        { 0xB9, 0x4A },
        { 0xBA, 0x9A },
        { 0xBB, 0x23 },
        { 0xBC, 0x95 },
        { 0xBD, 0x98 },
        { 0xBE, 0xFF },
        { 0xBF, 0x59 },
        { 0xC0, 0x8E },
        { 0xC1, 0xB9 },
        { 0xC2, 0xCD },
        { 0xC3, 0xDF },
        { 0xC4, 0xE8 },
        { 0xC5, 0xF0 },
        { 0xC6, 0xF8 },
        { 0xC7, 0xFA },
        { 0xC8, 0xFC },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x5A },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x0C },
        { 0xB1, 0x04 },
        { 0xB2, 0x2C },
        { 0xB3, 0x36 },
        { 0xB4, 0x53 },
        { 0xB5, 0x73 },
        { 0xB6, 0x8E },
        { 0xB7, 0xC0 },
        { 0xB8, 0xEF },
        { 0xB9, 0x4C },
        { 0xBA, 0x9D },
        { 0xBB, 0x25 },
        { 0xBC, 0x96 },
        { 0xBD, 0x9A },
        { 0xBE, 0x01 },
        { 0xBF, 0x59 },
        { 0xC0, 0x8E },
        { 0xC1, 0xB9 },
        { 0xC2, 0xCD },
        { 0xC3, 0xDF },
        { 0xC4, 0xE8 },
        { 0xC5, 0xF0 },
        { 0xC6, 0xF8 },
        { 0xC7, 0xFA },
        { 0xC8, 0xFC },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x5A },
        { 0xCC, 0xBF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x04 },
        { 0xB5, 0x02 },
        { 0xB6, 0x01 },
};

static const struct panel_desc boe_himax8279d8p_panel_desc = {
        .display_mode = &default_display_mode,
        .bpc = 8,
        .width_mm = 107,
        .height_mm = 172,
        .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
                        MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM,
        .format = MIPI_DSI_FMT_RGB888,
        .lanes = 4,
        .on_cmds = boe_himax8279d8p_on_cmds,
        .on_cmds_num = 260,
};

/* 10 inch */
static const struct panel_cmd boe_himax8279d10p_on_cmds[] = {
        { 0xB0, 0x05 },
        { 0xB1, 0xE5 },
        { 0xB3, 0x52 },
        { 0xB0, 0x00 },
        { 0xB6, 0x03 },
        { 0xBA, 0x8B },
        { 0xBF, 0x1A },
        { 0xC0, 0x0F },
        { 0xC2, 0x0C },
        { 0xC3, 0x02 },
        { 0xC4, 0x0C },
        { 0xC5, 0x02 },
        { 0xB0, 0x01 },
        { 0xE0, 0x26 },
        { 0xE1, 0x26 },
        { 0xDC, 0x00 },
        { 0xDD, 0x00 },
        { 0xCC, 0x26 },
        { 0xCD, 0x26 },
        { 0xC8, 0x00 },
        { 0xC9, 0x00 },
        { 0xD2, 0x03 },
        { 0xD3, 0x03 },
        { 0xE6, 0x04 },
        { 0xE7, 0x04 },
        { 0xC4, 0x09 },
        { 0xC5, 0x09 },
        { 0xD8, 0x0A },
        { 0xD9, 0x0A },
        { 0xC2, 0x0B },
        { 0xC3, 0x0B },
        { 0xD6, 0x0C },
        { 0xD7, 0x0C },
        { 0xC0, 0x05 },
        { 0xC1, 0x05 },
        { 0xD4, 0x06 },
        { 0xD5, 0x06 },
        { 0xCA, 0x07 },
        { 0xCB, 0x07 },
        { 0xDE, 0x08 },
        { 0xDF, 0x08 },
        { 0xB0, 0x02 },
        { 0xC0, 0x00 },
        { 0xC1, 0x0D },
        { 0xC2, 0x17 },
        { 0xC3, 0x26 },
        { 0xC4, 0x31 },
        { 0xC5, 0x1C },
        { 0xC6, 0x2C },
        { 0xC7, 0x33 },
        { 0xC8, 0x31 },
        { 0xC9, 0x37 },
        { 0xCA, 0x37 },
        { 0xCB, 0x37 },
        { 0xCC, 0x39 },
        { 0xCD, 0x2E },
        { 0xCE, 0x2F },
        { 0xCF, 0x2F },
        { 0xD0, 0x07 },
        { 0xD2, 0x00 },
        { 0xD3, 0x0D },
        { 0xD4, 0x17 },
        { 0xD5, 0x26 },
        { 0xD6, 0x31 },
        { 0xD7, 0x3F },
        { 0xD8, 0x3F },
        { 0xD9, 0x3F },
        { 0xDA, 0x3F },
        { 0xDB, 0x37 },
        { 0xDC, 0x37 },
        { 0xDD, 0x37 },
        { 0xDE, 0x39 },
        { 0xDF, 0x2E },
        { 0xE0, 0x2F },
        { 0xE1, 0x2F },
        { 0xE2, 0x07 },
        { 0xB0, 0x03 },
        { 0xC8, 0x0B },
        { 0xC9, 0x07 },
        { 0xC3, 0x00 },
        { 0xE7, 0x00 },
        { 0xC5, 0x2A },
        { 0xDE, 0x2A },
        { 0xCA, 0x43 },
        { 0xC9, 0x07 },
        { 0xE4, 0xC0 },
        { 0xE5, 0x0D },
        { 0xCB, 0x01 },
        { 0xBC, 0x01 },
        { 0xB0, 0x06 },
        { 0xB8, 0xA5 },
        { 0xC0, 0xA5 },
        { 0xC7, 0x0F },
        { 0xD5, 0x32 },
        { 0xB8, 0x00 },
        { 0xC0, 0x00 },
        { 0xBC, 0x00 },
        { 0xB0, 0x07 },
        { 0xB1, 0x00 },
        { 0xB2, 0x05 },
        { 0xB3, 0x10 },
        { 0xB4, 0x22 },
        { 0xB5, 0x36 },
        { 0xB6, 0x4A },
        { 0xB7, 0x6C },
        { 0xB8, 0x9A },
        { 0xB9, 0xD7 },
        { 0xBA, 0x17 },
        { 0xBB, 0x92 },
        { 0xBC, 0x15 },
        { 0xBD, 0x18 },
        { 0xBE, 0x8C },
        { 0xBF, 0x00 },
        { 0xC0, 0x3A },
        { 0xC1, 0x72 },
        { 0xC2, 0x8C },
        { 0xC3, 0xA5 },
        { 0xC4, 0xB1 },
        { 0xC5, 0xBE },
        { 0xC6, 0xCA },
        { 0xC7, 0xD1 },
        { 0xC8, 0xD4 },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x16 },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x08 },
        { 0xB1, 0x04 },
        { 0xB2, 0x05 },
        { 0xB3, 0x11 },
        { 0xB4, 0x24 },
        { 0xB5, 0x39 },
        { 0xB6, 0x4E },
        { 0xB7, 0x72 },
        { 0xB8, 0xA3 },
        { 0xB9, 0xE1 },
        { 0xBA, 0x25 },
        { 0xBB, 0xA8 },
        { 0xBC, 0x2E },
        { 0xBD, 0x32 },
        { 0xBE, 0xAD },
        { 0xBF, 0x28 },
        { 0xC0, 0x63 },
        { 0xC1, 0x9B },
        { 0xC2, 0xB5 },
        { 0xC3, 0xCF },
        { 0xC4, 0xDB },
        { 0xC5, 0xE8 },
        { 0xC6, 0xF5 },
        { 0xC7, 0xFA },
        { 0xC8, 0xFC },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x16 },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x09 },
        { 0xB1, 0x04 },
        { 0xB2, 0x04 },
        { 0xB3, 0x0F },
        { 0xB4, 0x22 },
        { 0xB5, 0x37 },
        { 0xB6, 0x4D },
        { 0xB7, 0x71 },
        { 0xB8, 0xA2 },
        { 0xB9, 0xE1 },
        { 0xBA, 0x26 },
        { 0xBB, 0xA9 },
        { 0xBC, 0x2F },
        { 0xBD, 0x33 },
        { 0xBE, 0xAC },
        { 0xBF, 0x24 },
        { 0xC0, 0x5D },
        { 0xC1, 0x94 },
        { 0xC2, 0xAC },
        { 0xC3, 0xC5 },
        { 0xC4, 0xD1 },
        { 0xC5, 0xDC },
        { 0xC6, 0xE8 },
        { 0xC7, 0xED },
        { 0xC8, 0xF0 },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x16 },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x0A },
        { 0xB1, 0x00 },
        { 0xB2, 0x05 },
        { 0xB3, 0x10 },
        { 0xB4, 0x22 },
        { 0xB5, 0x36 },
        { 0xB6, 0x4A },
        { 0xB7, 0x6C },
        { 0xB8, 0x9A },
        { 0xB9, 0xD7 },
        { 0xBA, 0x17 },
        { 0xBB, 0x92 },
        { 0xBC, 0x15 },
        { 0xBD, 0x18 },
        { 0xBE, 0x8C },
        { 0xBF, 0x00 },
        { 0xC0, 0x3A },
        { 0xC1, 0x72 },
        { 0xC2, 0x8C },
        { 0xC3, 0xA5 },
        { 0xC4, 0xB1 },
        { 0xC5, 0xBE },
        { 0xC6, 0xCA },
        { 0xC7, 0xD1 },
        { 0xC8, 0xD4 },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x16 },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x0B },
        { 0xB1, 0x04 },
        { 0xB2, 0x05 },
        { 0xB3, 0x11 },
        { 0xB4, 0x24 },
        { 0xB5, 0x39 },
        { 0xB6, 0x4E },
        { 0xB7, 0x72 },
        { 0xB8, 0xA3 },
        { 0xB9, 0xE1 },
        { 0xBA, 0x25 },
        { 0xBB, 0xA8 },
        { 0xBC, 0x2E },
        { 0xBD, 0x32 },
        { 0xBE, 0xAD },
        { 0xBF, 0x28 },
        { 0xC0, 0x63 },
        { 0xC1, 0x9B },
        { 0xC2, 0xB5 },
        { 0xC3, 0xCF },
        { 0xC4, 0xDB },
        { 0xC5, 0xE8 },
        { 0xC6, 0xF5 },
        { 0xC7, 0xFA },
        { 0xC8, 0xFC },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x16 },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
        { 0xB0, 0x0C },
        { 0xB1, 0x04 },
        { 0xB2, 0x04 },
        { 0xB3, 0x0F },
        { 0xB4, 0x22 },
        { 0xB5, 0x37 },
        { 0xB6, 0x4D },
        { 0xB7, 0x71 },
        { 0xB8, 0xA2 },
        { 0xB9, 0xE1 },
        { 0xBA, 0x26 },
        { 0xBB, 0xA9 },
        { 0xBC, 0x2F },
        { 0xBD, 0x33 },
        { 0xBE, 0xAC },
        { 0xBF, 0x24 },
        { 0xC0, 0x5D },
        { 0xC1, 0x94 },
        { 0xC2, 0xAC },
        { 0xC3, 0xC5 },
        { 0xC4, 0xD1 },
        { 0xC5, 0xDC },
        { 0xC6, 0xE8 },
        { 0xC7, 0xED },
        { 0xC8, 0xF0 },
        { 0xC9, 0x00 },
        { 0xCA, 0x00 },
        { 0xCB, 0x16 },
        { 0xCC, 0xAF },
        { 0xCD, 0xFF },
        { 0xCE, 0xFF },
};

static const struct panel_desc boe_himax8279d10p_panel_desc = {
        .display_mode = &default_display_mode,
        .bpc = 8,
        .width_mm = 135,
        .height_mm = 216,
        .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
                        MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM,
        .format = MIPI_DSI_FMT_RGB888,
        .lanes = 4,
        .on_cmds = boe_himax8279d10p_on_cmds,
        .on_cmds_num = 283,
};

static const struct of_device_id panel_of_match[] = {
        {
                .compatible = "boe,himax8279d8p",
                .data = &boe_himax8279d8p_panel_desc,
        },
        {
                .compatible = "boe,himax8279d10p",
                .data = &boe_himax8279d10p_panel_desc,
        },
        {
                /* sentinel */
        }
};
MODULE_DEVICE_TABLE(of, panel_of_match);

static int panel_add(struct panel_info *pinfo)
{
        struct device *dev = &pinfo->link->dev;
        int ret;

        pinfo->pp18_gpio = devm_gpiod_get(dev, "pp18", GPIOD_OUT_HIGH);
        if (IS_ERR(pinfo->pp18_gpio)) {
                return dev_err_probe(dev, PTR_ERR(pinfo->pp18_gpio),
                                                         "failed to get pp18 gpio\n");
        }

        pinfo->pp33_gpio = devm_gpiod_get(dev, "pp33", GPIOD_OUT_HIGH);
        if (IS_ERR(pinfo->pp33_gpio)) {
                return  dev_err_probe(dev, PTR_ERR(pinfo->pp33_gpio),
                                                         "failed to get pp33 gpio\n");
        }

        pinfo->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
        if (IS_ERR(pinfo->enable_gpio)) {
                return  dev_err_probe(dev, PTR_ERR(pinfo->enable_gpio),
                                                 "failed to get enable gpio\n");
        }

        ret = drm_panel_of_backlight(&pinfo->base);
        if (ret)
                return ret;

        drm_panel_add(&pinfo->base);

        return 0;
}

static int panel_probe(struct mipi_dsi_device *dsi)
{
        struct panel_info *pinfo;
        const struct panel_desc *desc;
        int err;

        pinfo = devm_drm_panel_alloc(&dsi->dev, __typeof(*pinfo), base,
                                     &panel_funcs, DRM_MODE_CONNECTOR_DSI);

        if (IS_ERR(pinfo))
                return PTR_ERR(pinfo);

        desc = of_device_get_match_data(&dsi->dev);
        dsi->mode_flags = desc->mode_flags;
        dsi->format = desc->format;
        dsi->lanes = desc->lanes;
        pinfo->desc = desc;

        pinfo->link = dsi;
        mipi_dsi_set_drvdata(dsi, pinfo);

        err = panel_add(pinfo);
        if (err < 0)
                return err;

        err = mipi_dsi_attach(dsi);
        if (err < 0)
                drm_panel_remove(&pinfo->base);

        return err;
}

static void panel_remove(struct mipi_dsi_device *dsi)
{
        struct panel_info *pinfo = mipi_dsi_get_drvdata(dsi);
        int err;

        err = mipi_dsi_detach(dsi);
        if (err < 0)
                dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);

        drm_panel_remove(&pinfo->base);
}

static struct mipi_dsi_driver panel_driver = {
        .driver = {
                .name = "panel-boe-himax8279d",
                .of_match_table = panel_of_match,
        },
        .probe = panel_probe,
        .remove = panel_remove,
};
module_mipi_dsi_driver(panel_driver);

MODULE_AUTHOR("Jerry Han <jerry.han.hq@gmail.com>");
MODULE_DESCRIPTION("Boe Himax8279d driver");
MODULE_LICENSE("GPL v2");