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linuxdebug/drivers/gpu/drm/panel/panel-boe-himax8279d.c

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null pointer error
2024-07-16 15:50:57 +02:00
// 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/of_device.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;
bool prepared;
bool enabled;
};
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;
if (!pinfo->enabled)
return 0;
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;
}
pinfo->enabled = false;
return 0;
}
static int boe_panel_unprepare(struct drm_panel *panel)
{
struct panel_info *pinfo = to_panel_info(panel);
int err;
if (!pinfo->prepared)
return 0;
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);
pinfo->prepared = false;
return 0;
}
static int boe_panel_prepare(struct drm_panel *panel)
{
struct panel_info *pinfo = to_panel_info(panel);
int err;
if (pinfo->prepared)
return 0;
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);
pinfo->prepared = true;
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;
if (pinfo->enabled)
return 0;
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;
}
pinfo->enabled = true;
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)) {
ret = PTR_ERR(pinfo->pp18_gpio);
if (ret != -EPROBE_DEFER)
dev_err(dev, "failed to get pp18 gpio: %d\n", ret);
return ret;
}
pinfo->pp33_gpio = devm_gpiod_get(dev, "pp33", GPIOD_OUT_HIGH);
if (IS_ERR(pinfo->pp33_gpio)) {
ret = PTR_ERR(pinfo->pp33_gpio);
if (ret != -EPROBE_DEFER)
dev_err(dev, "failed to get pp33 gpio: %d\n", ret);
return ret;
}
pinfo->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
if (IS_ERR(pinfo->enable_gpio)) {
ret = PTR_ERR(pinfo->enable_gpio);
if (ret != -EPROBE_DEFER)
dev_err(dev, "failed to get enable gpio: %d\n", ret);
return ret;
}
drm_panel_init(&pinfo->base, dev, &panel_funcs,
DRM_MODE_CONNECTOR_DSI);
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_kzalloc(&dsi->dev, sizeof(*pinfo), GFP_KERNEL);
if (!pinfo)
return -ENOMEM;
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 = boe_panel_disable(&pinfo->base);
if (err < 0)
dev_err(&dsi->dev, "failed to disable panel: %d\n", err);
err = boe_panel_unprepare(&pinfo->base);
if (err < 0)
dev_err(&dsi->dev, "failed to unprepare panel: %d\n", 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 void panel_shutdown(struct mipi_dsi_device *dsi)
{
struct panel_info *pinfo = mipi_dsi_get_drvdata(dsi);
boe_panel_disable(&pinfo->base);
boe_panel_unprepare(&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,
.shutdown = panel_shutdown,
};
module_mipi_dsi_driver(panel_driver);
MODULE_AUTHOR("Jerry Han <jerry.han.hq@gmail.com>");
MODULE_DESCRIPTION("Boe Himax8279d driver");
MODULE_LICENSE("GPL v2");