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OpenCloudOS-Kernel/drivers/gpu/drm/panel/panel-innolux-p079zca.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
*/
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.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 panel_init_cmd {
size_t len;
const char *data;
};
#define _INIT_CMD(...) { \
.len = sizeof((char[]){__VA_ARGS__}), \
.data = (char[]){__VA_ARGS__} }
struct panel_desc {
const struct drm_display_mode *mode;
unsigned int bpc;
struct {
unsigned int width;
unsigned int height;
} size;
unsigned long flags;
enum mipi_dsi_pixel_format format;
const struct panel_init_cmd *init_cmds;
unsigned int lanes;
const char * const *supply_names;
unsigned int num_supplies;
unsigned int sleep_mode_delay;
unsigned int power_down_delay;
};
struct innolux_panel {
struct drm_panel base;
struct mipi_dsi_device *link;
const struct panel_desc *desc;
struct regulator_bulk_data *supplies;
struct gpio_desc *enable_gpio;
bool prepared;
bool enabled;
};
static inline struct innolux_panel *to_innolux_panel(struct drm_panel *panel)
{
return container_of(panel, struct innolux_panel, base);
}
static int innolux_panel_disable(struct drm_panel *panel)
{
struct innolux_panel *innolux = to_innolux_panel(panel);
if (!innolux->enabled)
return 0;
innolux->enabled = false;
return 0;
}
static int innolux_panel_unprepare(struct drm_panel *panel)
{
struct innolux_panel *innolux = to_innolux_panel(panel);
int err;
if (!innolux->prepared)
return 0;
err = mipi_dsi_dcs_set_display_off(innolux->link);
if (err < 0)
dev_err(panel->dev, "failed to set display off: %d\n", err);
err = mipi_dsi_dcs_enter_sleep_mode(innolux->link);
if (err < 0) {
dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);
return err;
}
if (innolux->desc->sleep_mode_delay)
msleep(innolux->desc->sleep_mode_delay);
gpiod_set_value_cansleep(innolux->enable_gpio, 0);
if (innolux->desc->power_down_delay)
msleep(innolux->desc->power_down_delay);
err = regulator_bulk_disable(innolux->desc->num_supplies,
innolux->supplies);
if (err < 0)
return err;
innolux->prepared = false;
return 0;
}
static int innolux_panel_prepare(struct drm_panel *panel)
{
struct innolux_panel *innolux = to_innolux_panel(panel);
int err;
if (innolux->prepared)
return 0;
gpiod_set_value_cansleep(innolux->enable_gpio, 0);
err = regulator_bulk_enable(innolux->desc->num_supplies,
innolux->supplies);
if (err < 0)
return err;
/* p079zca: t2 (20ms), p097pfg: t4 (15ms) */
usleep_range(20000, 21000);
gpiod_set_value_cansleep(innolux->enable_gpio, 1);
/* p079zca: t4, p097pfg: t5 */
usleep_range(20000, 21000);
if (innolux->desc->init_cmds) {
const struct panel_init_cmd *cmds =
innolux->desc->init_cmds;
unsigned int i;
for (i = 0; cmds[i].len != 0; i++) {
const struct panel_init_cmd *cmd = &cmds[i];
err = mipi_dsi_generic_write(innolux->link, cmd->data,
cmd->len);
if (err < 0) {
dev_err(panel->dev, "failed to write command %u\n", i);
goto poweroff;
}
/*
* Included by random guessing, because without this
* (or at least, some delay), the panel sometimes
* didn't appear to pick up the command sequence.
*/
err = mipi_dsi_dcs_nop(innolux->link);
if (err < 0) {
dev_err(panel->dev, "failed to send DCS nop: %d\n", err);
goto poweroff;
}
}
}
err = mipi_dsi_dcs_exit_sleep_mode(innolux->link);
if (err < 0) {
dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);
goto poweroff;
}
/* T6: 120ms - 1000ms*/
msleep(120);
err = mipi_dsi_dcs_set_display_on(innolux->link);
if (err < 0) {
dev_err(panel->dev, "failed to set display on: %d\n", err);
goto poweroff;
}
/* T7: 5ms */
usleep_range(5000, 6000);
innolux->prepared = true;
return 0;
poweroff:
gpiod_set_value_cansleep(innolux->enable_gpio, 0);
regulator_bulk_disable(innolux->desc->num_supplies, innolux->supplies);
return err;
}
static int innolux_panel_enable(struct drm_panel *panel)
{
struct innolux_panel *innolux = to_innolux_panel(panel);
if (innolux->enabled)
return 0;
innolux->enabled = true;
return 0;
}
static const char * const innolux_p079zca_supply_names[] = {
"power",
};
static const struct drm_display_mode innolux_p079zca_mode = {
.clock = 56900,
.hdisplay = 768,
.hsync_start = 768 + 40,
.hsync_end = 768 + 40 + 40,
.htotal = 768 + 40 + 40 + 40,
.vdisplay = 1024,
.vsync_start = 1024 + 20,
.vsync_end = 1024 + 20 + 4,
.vtotal = 1024 + 20 + 4 + 20,
};
static const struct panel_desc innolux_p079zca_panel_desc = {
.mode = &innolux_p079zca_mode,
.bpc = 8,
.size = {
.width = 120,
.height = 160,
},
.flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
MIPI_DSI_MODE_LPM,
.format = MIPI_DSI_FMT_RGB888,
.lanes = 4,
.supply_names = innolux_p079zca_supply_names,
.num_supplies = ARRAY_SIZE(innolux_p079zca_supply_names),
.power_down_delay = 80, /* T8: 80ms - 1000ms */
};
static const char * const innolux_p097pfg_supply_names[] = {
"avdd",
"avee",
};
static const struct drm_display_mode innolux_p097pfg_mode = {
.clock = 229000,
.hdisplay = 1536,
.hsync_start = 1536 + 100,
.hsync_end = 1536 + 100 + 24,
.htotal = 1536 + 100 + 24 + 100,
.vdisplay = 2048,
.vsync_start = 2048 + 100,
.vsync_end = 2048 + 100 + 2,
.vtotal = 2048 + 100 + 2 + 18,
};
/*
* Display manufacturer failed to provide init sequencing according to
* https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/892065/
* so the init sequence stems from a register dump of a working panel.
*/
static const struct panel_init_cmd innolux_p097pfg_init_cmds[] = {
/* page 0 */
_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x00),
_INIT_CMD(0xB1, 0xE8, 0x11),
_INIT_CMD(0xB2, 0x25, 0x02),
_INIT_CMD(0xB5, 0x08, 0x00),
_INIT_CMD(0xBC, 0x0F, 0x00),
_INIT_CMD(0xB8, 0x03, 0x06, 0x00, 0x00),
_INIT_CMD(0xBD, 0x01, 0x90, 0x14, 0x14),
_INIT_CMD(0x6F, 0x01),
_INIT_CMD(0xC0, 0x03),
_INIT_CMD(0x6F, 0x02),
_INIT_CMD(0xC1, 0x0D),
_INIT_CMD(0xD9, 0x01, 0x09, 0x70),
_INIT_CMD(0xC5, 0x12, 0x21, 0x00),
_INIT_CMD(0xBB, 0x93, 0x93),
/* page 1 */
_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x01),
_INIT_CMD(0xB3, 0x3C, 0x3C),
_INIT_CMD(0xB4, 0x0F, 0x0F),
_INIT_CMD(0xB9, 0x45, 0x45),
_INIT_CMD(0xBA, 0x14, 0x14),
_INIT_CMD(0xCA, 0x02),
_INIT_CMD(0xCE, 0x04),
_INIT_CMD(0xC3, 0x9B, 0x9B),
_INIT_CMD(0xD8, 0xC0, 0x03),
_INIT_CMD(0xBC, 0x82, 0x01),
_INIT_CMD(0xBD, 0x9E, 0x01),
/* page 2 */
_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x02),
_INIT_CMD(0xB0, 0x82),
_INIT_CMD(0xD1, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x82, 0x00, 0xA5,
0x00, 0xC1, 0x00, 0xEA, 0x01, 0x0D, 0x01, 0x40),
_INIT_CMD(0xD2, 0x01, 0x6A, 0x01, 0xA8, 0x01, 0xDC, 0x02, 0x29,
0x02, 0x67, 0x02, 0x68, 0x02, 0xA8, 0x02, 0xF0),
_INIT_CMD(0xD3, 0x03, 0x19, 0x03, 0x49, 0x03, 0x67, 0x03, 0x8C,
0x03, 0xA6, 0x03, 0xC7, 0x03, 0xDE, 0x03, 0xEC),
_INIT_CMD(0xD4, 0x03, 0xFF, 0x03, 0xFF),
_INIT_CMD(0xE0, 0x00, 0x00, 0x00, 0x86, 0x00, 0xC5, 0x00, 0xE5,
0x00, 0xFF, 0x01, 0x26, 0x01, 0x45, 0x01, 0x75),
_INIT_CMD(0xE1, 0x01, 0x9C, 0x01, 0xD5, 0x02, 0x05, 0x02, 0x4D,
0x02, 0x86, 0x02, 0x87, 0x02, 0xC3, 0x03, 0x03),
_INIT_CMD(0xE2, 0x03, 0x2A, 0x03, 0x56, 0x03, 0x72, 0x03, 0x94,
0x03, 0xAC, 0x03, 0xCB, 0x03, 0xE0, 0x03, 0xED),
_INIT_CMD(0xE3, 0x03, 0xFF, 0x03, 0xFF),
/* page 3 */
_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x03),
_INIT_CMD(0xB0, 0x00, 0x00, 0x00, 0x00),
_INIT_CMD(0xB1, 0x00, 0x00, 0x00, 0x00),
_INIT_CMD(0xB2, 0x00, 0x00, 0x06, 0x04, 0x01, 0x40, 0x85),
_INIT_CMD(0xB3, 0x10, 0x07, 0xFC, 0x04, 0x01, 0x40, 0x80),
_INIT_CMD(0xB6, 0xF0, 0x08, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01,
0x40, 0x80),
_INIT_CMD(0xBA, 0xC5, 0x07, 0x00, 0x04, 0x11, 0x25, 0x8C),
_INIT_CMD(0xBB, 0xC5, 0x07, 0x00, 0x03, 0x11, 0x25, 0x8C),
_INIT_CMD(0xC0, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80),
_INIT_CMD(0xC1, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80),
_INIT_CMD(0xC4, 0x00, 0x00),
_INIT_CMD(0xEF, 0x41),
/* page 4 */
_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x04),
_INIT_CMD(0xEC, 0x4C),
/* page 5 */
_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x05),
_INIT_CMD(0xB0, 0x13, 0x03, 0x03, 0x01),
_INIT_CMD(0xB1, 0x30, 0x00),
_INIT_CMD(0xB2, 0x02, 0x02, 0x00),
_INIT_CMD(0xB3, 0x82, 0x23, 0x82, 0x9D),
_INIT_CMD(0xB4, 0xC5, 0x75, 0x24, 0x57),
_INIT_CMD(0xB5, 0x00, 0xD4, 0x72, 0x11, 0x11, 0xAB, 0x0A),
_INIT_CMD(0xB6, 0x00, 0x00, 0xD5, 0x72, 0x24, 0x56),
_INIT_CMD(0xB7, 0x5C, 0xDC, 0x5C, 0x5C),
_INIT_CMD(0xB9, 0x0C, 0x00, 0x00, 0x01, 0x00),
_INIT_CMD(0xC0, 0x75, 0x11, 0x11, 0x54, 0x05),
_INIT_CMD(0xC6, 0x00, 0x00, 0x00, 0x00),
_INIT_CMD(0xD0, 0x00, 0x48, 0x08, 0x00, 0x00),
_INIT_CMD(0xD1, 0x00, 0x48, 0x09, 0x00, 0x00),
/* page 6 */
_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x06),
_INIT_CMD(0xB0, 0x02, 0x32, 0x32, 0x08, 0x2F),
_INIT_CMD(0xB1, 0x2E, 0x15, 0x14, 0x13, 0x12),
_INIT_CMD(0xB2, 0x11, 0x10, 0x00, 0x3D, 0x3D),
_INIT_CMD(0xB3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
_INIT_CMD(0xB4, 0x3D, 0x32),
_INIT_CMD(0xB5, 0x03, 0x32, 0x32, 0x09, 0x2F),
_INIT_CMD(0xB6, 0x2E, 0x1B, 0x1A, 0x19, 0x18),
_INIT_CMD(0xB7, 0x17, 0x16, 0x01, 0x3D, 0x3D),
_INIT_CMD(0xB8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
_INIT_CMD(0xB9, 0x3D, 0x32),
_INIT_CMD(0xC0, 0x01, 0x32, 0x32, 0x09, 0x2F),
_INIT_CMD(0xC1, 0x2E, 0x1A, 0x1B, 0x16, 0x17),
_INIT_CMD(0xC2, 0x18, 0x19, 0x03, 0x3D, 0x3D),
_INIT_CMD(0xC3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
_INIT_CMD(0xC4, 0x3D, 0x32),
_INIT_CMD(0xC5, 0x00, 0x32, 0x32, 0x08, 0x2F),
_INIT_CMD(0xC6, 0x2E, 0x14, 0x15, 0x10, 0x11),
_INIT_CMD(0xC7, 0x12, 0x13, 0x02, 0x3D, 0x3D),
_INIT_CMD(0xC8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
_INIT_CMD(0xC9, 0x3D, 0x32),
{},
};
static const struct panel_desc innolux_p097pfg_panel_desc = {
.mode = &innolux_p097pfg_mode,
.bpc = 8,
.size = {
.width = 147,
.height = 196,
},
.flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
MIPI_DSI_MODE_LPM,
.format = MIPI_DSI_FMT_RGB888,
.init_cmds = innolux_p097pfg_init_cmds,
.lanes = 4,
.supply_names = innolux_p097pfg_supply_names,
.num_supplies = ARRAY_SIZE(innolux_p097pfg_supply_names),
.sleep_mode_delay = 100, /* T15 */
};
static int innolux_panel_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct innolux_panel *innolux = to_innolux_panel(panel);
const struct drm_display_mode *m = innolux->desc->mode;
struct drm_display_mode *mode;
mode = drm_mode_duplicate(connector->dev, m);
if (!mode) {
dev_err(panel->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 = innolux->desc->size.width;
connector->display_info.height_mm = innolux->desc->size.height;
connector->display_info.bpc = innolux->desc->bpc;
return 1;
}
static const struct drm_panel_funcs innolux_panel_funcs = {
.disable = innolux_panel_disable,
.unprepare = innolux_panel_unprepare,
.prepare = innolux_panel_prepare,
.enable = innolux_panel_enable,
.get_modes = innolux_panel_get_modes,
};
static const struct of_device_id innolux_of_match[] = {
{ .compatible = "innolux,p079zca",
.data = &innolux_p079zca_panel_desc
},
{ .compatible = "innolux,p097pfg",
.data = &innolux_p097pfg_panel_desc
},
{ }
};
MODULE_DEVICE_TABLE(of, innolux_of_match);
static int innolux_panel_add(struct mipi_dsi_device *dsi,
const struct panel_desc *desc)
{
struct innolux_panel *innolux;
struct device *dev = &dsi->dev;
int err, i;
innolux = devm_kzalloc(dev, sizeof(*innolux), GFP_KERNEL);
if (!innolux)
return -ENOMEM;
innolux->desc = desc;
innolux->supplies = devm_kcalloc(dev, desc->num_supplies,
sizeof(*innolux->supplies),
GFP_KERNEL);
if (!innolux->supplies)
return -ENOMEM;
for (i = 0; i < desc->num_supplies; i++)
innolux->supplies[i].supply = desc->supply_names[i];
err = devm_regulator_bulk_get(dev, desc->num_supplies,
innolux->supplies);
if (err < 0)
return err;
innolux->enable_gpio = devm_gpiod_get_optional(dev, "enable",
GPIOD_OUT_HIGH);
if (IS_ERR(innolux->enable_gpio)) {
err = PTR_ERR(innolux->enable_gpio);
dev_dbg(dev, "failed to get enable gpio: %d\n", err);
innolux->enable_gpio = NULL;
}
drm_panel_init(&innolux->base, dev, &innolux_panel_funcs,
DRM_MODE_CONNECTOR_DSI);
err = drm_panel_of_backlight(&innolux->base);
if (err)
return err;
drm_panel_add(&innolux->base);
mipi_dsi_set_drvdata(dsi, innolux);
innolux->link = dsi;
return 0;
}
static void innolux_panel_del(struct innolux_panel *innolux)
{
drm_panel_remove(&innolux->base);
}
static int innolux_panel_probe(struct mipi_dsi_device *dsi)
{
const struct panel_desc *desc;
struct innolux_panel *innolux;
int err;
desc = of_device_get_match_data(&dsi->dev);
dsi->mode_flags = desc->flags;
dsi->format = desc->format;
dsi->lanes = desc->lanes;
err = innolux_panel_add(dsi, desc);
if (err < 0)
return err;
err = mipi_dsi_attach(dsi);
if (err < 0) {
innolux = mipi_dsi_get_drvdata(dsi);
innolux_panel_del(innolux);
return err;
}
return 0;
}
static int innolux_panel_remove(struct mipi_dsi_device *dsi)
{
struct innolux_panel *innolux = mipi_dsi_get_drvdata(dsi);
int err;
err = drm_panel_unprepare(&innolux->base);
if (err < 0)
dev_err(&dsi->dev, "failed to unprepare panel: %d\n", err);
err = drm_panel_disable(&innolux->base);
if (err < 0)
dev_err(&dsi->dev, "failed to disable 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);
innolux_panel_del(innolux);
return 0;
}
static void innolux_panel_shutdown(struct mipi_dsi_device *dsi)
{
struct innolux_panel *innolux = mipi_dsi_get_drvdata(dsi);
drm_panel_unprepare(&innolux->base);
drm_panel_disable(&innolux->base);
}
static struct mipi_dsi_driver innolux_panel_driver = {
.driver = {
.name = "panel-innolux-p079zca",
.of_match_table = innolux_of_match,
},
.probe = innolux_panel_probe,
.remove = innolux_panel_remove,
.shutdown = innolux_panel_shutdown,
};
module_mipi_dsi_driver(innolux_panel_driver);
MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
MODULE_AUTHOR("Lin Huang <hl@rock-chips.com>");
MODULE_DESCRIPTION("Innolux P079ZCA panel driver");
MODULE_LICENSE("GPL v2");
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