mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-05 10:04:12 +08:00
5bd785a814
This patch adds a 60 fps mode to the Orisetech OTM8009A panel. The 50 fps mode is left as preferred. Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210902150351.3779-1-raphael.gallais-pou@foss.st.com
530 lines
15 KiB
C
530 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) STMicroelectronics SA 2017
|
|
*
|
|
* Authors: Philippe Cornu <philippe.cornu@st.com>
|
|
* Yannick Fertre <yannick.fertre@st.com>
|
|
*/
|
|
|
|
#include <linux/backlight.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/gpio/consumer.h>
|
|
#include <linux/module.h>
|
|
#include <linux/regulator/consumer.h>
|
|
|
|
#include <video/mipi_display.h>
|
|
|
|
#include <drm/drm_mipi_dsi.h>
|
|
#include <drm/drm_modes.h>
|
|
#include <drm/drm_panel.h>
|
|
|
|
#define OTM8009A_BACKLIGHT_DEFAULT 240
|
|
#define OTM8009A_BACKLIGHT_MAX 255
|
|
|
|
/* Manufacturer Command Set */
|
|
#define MCS_ADRSFT 0x0000 /* Address Shift Function */
|
|
#define MCS_PANSET 0xB3A6 /* Panel Type Setting */
|
|
#define MCS_SD_CTRL 0xC0A2 /* Source Driver Timing Setting */
|
|
#define MCS_P_DRV_M 0xC0B4 /* Panel Driving Mode */
|
|
#define MCS_OSC_ADJ 0xC181 /* Oscillator Adjustment for Idle/Normal mode */
|
|
#define MCS_RGB_VID_SET 0xC1A1 /* RGB Video Mode Setting */
|
|
#define MCS_SD_PCH_CTRL 0xC480 /* Source Driver Precharge Control */
|
|
#define MCS_NO_DOC1 0xC48A /* Command not documented */
|
|
#define MCS_PWR_CTRL1 0xC580 /* Power Control Setting 1 */
|
|
#define MCS_PWR_CTRL2 0xC590 /* Power Control Setting 2 for Normal Mode */
|
|
#define MCS_PWR_CTRL4 0xC5B0 /* Power Control Setting 4 for DC Voltage */
|
|
#define MCS_PANCTRLSET1 0xCB80 /* Panel Control Setting 1 */
|
|
#define MCS_PANCTRLSET2 0xCB90 /* Panel Control Setting 2 */
|
|
#define MCS_PANCTRLSET3 0xCBA0 /* Panel Control Setting 3 */
|
|
#define MCS_PANCTRLSET4 0xCBB0 /* Panel Control Setting 4 */
|
|
#define MCS_PANCTRLSET5 0xCBC0 /* Panel Control Setting 5 */
|
|
#define MCS_PANCTRLSET6 0xCBD0 /* Panel Control Setting 6 */
|
|
#define MCS_PANCTRLSET7 0xCBE0 /* Panel Control Setting 7 */
|
|
#define MCS_PANCTRLSET8 0xCBF0 /* Panel Control Setting 8 */
|
|
#define MCS_PANU2D1 0xCC80 /* Panel U2D Setting 1 */
|
|
#define MCS_PANU2D2 0xCC90 /* Panel U2D Setting 2 */
|
|
#define MCS_PANU2D3 0xCCA0 /* Panel U2D Setting 3 */
|
|
#define MCS_PAND2U1 0xCCB0 /* Panel D2U Setting 1 */
|
|
#define MCS_PAND2U2 0xCCC0 /* Panel D2U Setting 2 */
|
|
#define MCS_PAND2U3 0xCCD0 /* Panel D2U Setting 3 */
|
|
#define MCS_GOAVST 0xCE80 /* GOA VST Setting */
|
|
#define MCS_GOACLKA1 0xCEA0 /* GOA CLKA1 Setting */
|
|
#define MCS_GOACLKA3 0xCEB0 /* GOA CLKA3 Setting */
|
|
#define MCS_GOAECLK 0xCFC0 /* GOA ECLK Setting */
|
|
#define MCS_NO_DOC2 0xCFD0 /* Command not documented */
|
|
#define MCS_GVDDSET 0xD800 /* GVDD/NGVDD */
|
|
#define MCS_VCOMDC 0xD900 /* VCOM Voltage Setting */
|
|
#define MCS_GMCT2_2P 0xE100 /* Gamma Correction 2.2+ Setting */
|
|
#define MCS_GMCT2_2N 0xE200 /* Gamma Correction 2.2- Setting */
|
|
#define MCS_NO_DOC3 0xF5B6 /* Command not documented */
|
|
#define MCS_CMD2_ENA1 0xFF00 /* Enable Access Command2 "CMD2" */
|
|
#define MCS_CMD2_ENA2 0xFF80 /* Enable Access Orise Command2 */
|
|
|
|
#define OTM8009A_HDISPLAY 480
|
|
#define OTM8009A_VDISPLAY 800
|
|
|
|
struct otm8009a {
|
|
struct device *dev;
|
|
struct drm_panel panel;
|
|
struct backlight_device *bl_dev;
|
|
struct gpio_desc *reset_gpio;
|
|
struct regulator *supply;
|
|
bool prepared;
|
|
bool enabled;
|
|
};
|
|
|
|
static const struct drm_display_mode modes[] = {
|
|
{ /* 50 Hz, preferred */
|
|
.clock = 29700,
|
|
.hdisplay = 480,
|
|
.hsync_start = 480 + 98,
|
|
.hsync_end = 480 + 98 + 32,
|
|
.htotal = 480 + 98 + 32 + 98,
|
|
.vdisplay = 800,
|
|
.vsync_start = 800 + 15,
|
|
.vsync_end = 800 + 15 + 10,
|
|
.vtotal = 800 + 15 + 10 + 14,
|
|
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
|
|
.width_mm = 52,
|
|
.height_mm = 86,
|
|
},
|
|
{ /* 60 Hz */
|
|
.clock = 33000,
|
|
.hdisplay = 480,
|
|
.hsync_start = 480 + 70,
|
|
.hsync_end = 480 + 70 + 32,
|
|
.htotal = 480 + 70 + 32 + 72,
|
|
.vdisplay = 800,
|
|
.vsync_start = 800 + 15,
|
|
.vsync_end = 800 + 15 + 10,
|
|
.vtotal = 800 + 15 + 10 + 16,
|
|
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
|
|
.width_mm = 52,
|
|
.height_mm = 86,
|
|
},
|
|
};
|
|
|
|
static inline struct otm8009a *panel_to_otm8009a(struct drm_panel *panel)
|
|
{
|
|
return container_of(panel, struct otm8009a, panel);
|
|
}
|
|
|
|
static void otm8009a_dcs_write_buf(struct otm8009a *ctx, const void *data,
|
|
size_t len)
|
|
{
|
|
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
|
|
|
if (mipi_dsi_dcs_write_buffer(dsi, data, len) < 0)
|
|
dev_warn(ctx->dev, "mipi dsi dcs write buffer failed\n");
|
|
}
|
|
|
|
#define dcs_write_seq(ctx, seq...) \
|
|
({ \
|
|
static const u8 d[] = { seq }; \
|
|
otm8009a_dcs_write_buf(ctx, d, ARRAY_SIZE(d)); \
|
|
})
|
|
|
|
#define dcs_write_cmd_at(ctx, cmd, seq...) \
|
|
({ \
|
|
dcs_write_seq(ctx, MCS_ADRSFT, (cmd) & 0xFF); \
|
|
dcs_write_seq(ctx, (cmd) >> 8, seq); \
|
|
})
|
|
|
|
static int otm8009a_init_sequence(struct otm8009a *ctx)
|
|
{
|
|
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
|
int ret;
|
|
|
|
/* Enter CMD2 */
|
|
dcs_write_cmd_at(ctx, MCS_CMD2_ENA1, 0x80, 0x09, 0x01);
|
|
|
|
/* Enter Orise Command2 */
|
|
dcs_write_cmd_at(ctx, MCS_CMD2_ENA2, 0x80, 0x09);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_SD_PCH_CTRL, 0x30);
|
|
mdelay(10);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_NO_DOC1, 0x40);
|
|
mdelay(10);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_PWR_CTRL4 + 1, 0xA9);
|
|
dcs_write_cmd_at(ctx, MCS_PWR_CTRL2 + 1, 0x34);
|
|
dcs_write_cmd_at(ctx, MCS_P_DRV_M, 0x50);
|
|
dcs_write_cmd_at(ctx, MCS_VCOMDC, 0x4E);
|
|
dcs_write_cmd_at(ctx, MCS_OSC_ADJ, 0x66); /* 65Hz */
|
|
dcs_write_cmd_at(ctx, MCS_PWR_CTRL2 + 2, 0x01);
|
|
dcs_write_cmd_at(ctx, MCS_PWR_CTRL2 + 5, 0x34);
|
|
dcs_write_cmd_at(ctx, MCS_PWR_CTRL2 + 4, 0x33);
|
|
dcs_write_cmd_at(ctx, MCS_GVDDSET, 0x79, 0x79);
|
|
dcs_write_cmd_at(ctx, MCS_SD_CTRL + 1, 0x1B);
|
|
dcs_write_cmd_at(ctx, MCS_PWR_CTRL1 + 2, 0x83);
|
|
dcs_write_cmd_at(ctx, MCS_SD_PCH_CTRL + 1, 0x83);
|
|
dcs_write_cmd_at(ctx, MCS_RGB_VID_SET, 0x0E);
|
|
dcs_write_cmd_at(ctx, MCS_PANSET, 0x00, 0x01);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_GOAVST, 0x85, 0x01, 0x00, 0x84, 0x01, 0x00);
|
|
dcs_write_cmd_at(ctx, MCS_GOACLKA1, 0x18, 0x04, 0x03, 0x39, 0x00, 0x00,
|
|
0x00, 0x18, 0x03, 0x03, 0x3A, 0x00, 0x00, 0x00);
|
|
dcs_write_cmd_at(ctx, MCS_GOACLKA3, 0x18, 0x02, 0x03, 0x3B, 0x00, 0x00,
|
|
0x00, 0x18, 0x01, 0x03, 0x3C, 0x00, 0x00, 0x00);
|
|
dcs_write_cmd_at(ctx, MCS_GOAECLK, 0x01, 0x01, 0x20, 0x20, 0x00, 0x00,
|
|
0x01, 0x02, 0x00, 0x00);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_NO_DOC2, 0x00);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_PANCTRLSET1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
dcs_write_cmd_at(ctx, MCS_PANCTRLSET2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0);
|
|
dcs_write_cmd_at(ctx, MCS_PANCTRLSET3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0);
|
|
dcs_write_cmd_at(ctx, MCS_PANCTRLSET4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
dcs_write_cmd_at(ctx, MCS_PANCTRLSET5, 0, 4, 4, 4, 4, 4, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0);
|
|
dcs_write_cmd_at(ctx, MCS_PANCTRLSET6, 0, 0, 0, 0, 0, 0, 4, 4, 4, 4,
|
|
4, 0, 0, 0, 0);
|
|
dcs_write_cmd_at(ctx, MCS_PANCTRLSET7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
dcs_write_cmd_at(ctx, MCS_PANCTRLSET8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_PANU2D1, 0x00, 0x26, 0x09, 0x0B, 0x01, 0x25,
|
|
0x00, 0x00, 0x00, 0x00);
|
|
dcs_write_cmd_at(ctx, MCS_PANU2D2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x26, 0x0A, 0x0C, 0x02);
|
|
dcs_write_cmd_at(ctx, MCS_PANU2D3, 0x25, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
|
|
dcs_write_cmd_at(ctx, MCS_PAND2U1, 0x00, 0x25, 0x0C, 0x0A, 0x02, 0x26,
|
|
0x00, 0x00, 0x00, 0x00);
|
|
dcs_write_cmd_at(ctx, MCS_PAND2U2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x25, 0x0B, 0x09, 0x01);
|
|
dcs_write_cmd_at(ctx, MCS_PAND2U3, 0x26, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_PWR_CTRL1 + 1, 0x66);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_NO_DOC3, 0x06);
|
|
|
|
dcs_write_cmd_at(ctx, MCS_GMCT2_2P, 0x00, 0x09, 0x0F, 0x0E, 0x07, 0x10,
|
|
0x0B, 0x0A, 0x04, 0x07, 0x0B, 0x08, 0x0F, 0x10, 0x0A,
|
|
0x01);
|
|
dcs_write_cmd_at(ctx, MCS_GMCT2_2N, 0x00, 0x09, 0x0F, 0x0E, 0x07, 0x10,
|
|
0x0B, 0x0A, 0x04, 0x07, 0x0B, 0x08, 0x0F, 0x10, 0x0A,
|
|
0x01);
|
|
|
|
/* Exit CMD2 */
|
|
dcs_write_cmd_at(ctx, MCS_CMD2_ENA1, 0xFF, 0xFF, 0xFF);
|
|
|
|
ret = mipi_dsi_dcs_nop(dsi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Wait for sleep out exit */
|
|
mdelay(120);
|
|
|
|
/* Default portrait 480x800 rgb24 */
|
|
dcs_write_seq(ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
|
|
|
|
ret = mipi_dsi_dcs_set_column_address(dsi, 0, OTM8009A_HDISPLAY - 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mipi_dsi_dcs_set_page_address(dsi, 0, OTM8009A_VDISPLAY - 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* See otm8009a driver documentation for pixel format descriptions */
|
|
ret = mipi_dsi_dcs_set_pixel_format(dsi, MIPI_DCS_PIXEL_FMT_24BIT |
|
|
MIPI_DCS_PIXEL_FMT_24BIT << 4);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Disable CABC feature */
|
|
dcs_write_seq(ctx, MIPI_DCS_WRITE_POWER_SAVE, 0x00);
|
|
|
|
ret = mipi_dsi_dcs_set_display_on(dsi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mipi_dsi_dcs_nop(dsi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Send Command GRAM memory write (no parameters) */
|
|
dcs_write_seq(ctx, MIPI_DCS_WRITE_MEMORY_START);
|
|
|
|
/* Wait a short while to let the panel be ready before the 1st frame */
|
|
mdelay(10);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int otm8009a_disable(struct drm_panel *panel)
|
|
{
|
|
struct otm8009a *ctx = panel_to_otm8009a(panel);
|
|
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
|
|
int ret;
|
|
|
|
if (!ctx->enabled)
|
|
return 0; /* This is not an issue so we return 0 here */
|
|
|
|
backlight_disable(ctx->bl_dev);
|
|
|
|
ret = mipi_dsi_dcs_set_display_off(dsi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
msleep(120);
|
|
|
|
ctx->enabled = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int otm8009a_unprepare(struct drm_panel *panel)
|
|
{
|
|
struct otm8009a *ctx = panel_to_otm8009a(panel);
|
|
|
|
if (!ctx->prepared)
|
|
return 0;
|
|
|
|
if (ctx->reset_gpio) {
|
|
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
|
|
msleep(20);
|
|
}
|
|
|
|
regulator_disable(ctx->supply);
|
|
|
|
ctx->prepared = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int otm8009a_prepare(struct drm_panel *panel)
|
|
{
|
|
struct otm8009a *ctx = panel_to_otm8009a(panel);
|
|
int ret;
|
|
|
|
if (ctx->prepared)
|
|
return 0;
|
|
|
|
ret = regulator_enable(ctx->supply);
|
|
if (ret < 0) {
|
|
dev_err(panel->dev, "failed to enable supply: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
if (ctx->reset_gpio) {
|
|
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
|
|
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
|
|
msleep(20);
|
|
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
|
|
msleep(100);
|
|
}
|
|
|
|
ret = otm8009a_init_sequence(ctx);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ctx->prepared = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int otm8009a_enable(struct drm_panel *panel)
|
|
{
|
|
struct otm8009a *ctx = panel_to_otm8009a(panel);
|
|
|
|
if (ctx->enabled)
|
|
return 0;
|
|
|
|
backlight_enable(ctx->bl_dev);
|
|
|
|
ctx->enabled = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int otm8009a_get_modes(struct drm_panel *panel,
|
|
struct drm_connector *connector)
|
|
{
|
|
struct drm_display_mode *mode;
|
|
unsigned int num_modes = ARRAY_SIZE(modes);
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < num_modes; i++) {
|
|
mode = drm_mode_duplicate(connector->dev, &modes[i]);
|
|
if (!mode) {
|
|
dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
|
|
modes[i].hdisplay,
|
|
modes[i].vdisplay,
|
|
drm_mode_vrefresh(&modes[i]));
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mode->type = DRM_MODE_TYPE_DRIVER;
|
|
|
|
/* Setting first mode as preferred */
|
|
if (!i)
|
|
mode->type |= DRM_MODE_TYPE_PREFERRED;
|
|
|
|
drm_mode_set_name(mode);
|
|
drm_mode_probed_add(connector, mode);
|
|
}
|
|
|
|
connector->display_info.width_mm = mode->width_mm;
|
|
connector->display_info.height_mm = mode->height_mm;
|
|
|
|
return num_modes;
|
|
}
|
|
|
|
static const struct drm_panel_funcs otm8009a_drm_funcs = {
|
|
.disable = otm8009a_disable,
|
|
.unprepare = otm8009a_unprepare,
|
|
.prepare = otm8009a_prepare,
|
|
.enable = otm8009a_enable,
|
|
.get_modes = otm8009a_get_modes,
|
|
};
|
|
|
|
/*
|
|
* DSI-BASED BACKLIGHT
|
|
*/
|
|
|
|
static int otm8009a_backlight_update_status(struct backlight_device *bd)
|
|
{
|
|
struct otm8009a *ctx = bl_get_data(bd);
|
|
u8 data[2];
|
|
|
|
if (!ctx->prepared) {
|
|
dev_dbg(&bd->dev, "lcd not ready yet for setting its backlight!\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
if (bd->props.power <= FB_BLANK_NORMAL) {
|
|
/* Power on the backlight with the requested brightness
|
|
* Note We can not use mipi_dsi_dcs_set_display_brightness()
|
|
* as otm8009a driver support only 8-bit brightness (1 param).
|
|
*/
|
|
data[0] = MIPI_DCS_SET_DISPLAY_BRIGHTNESS;
|
|
data[1] = bd->props.brightness;
|
|
otm8009a_dcs_write_buf(ctx, data, ARRAY_SIZE(data));
|
|
|
|
/* set Brightness Control & Backlight on */
|
|
data[1] = 0x24;
|
|
|
|
} else {
|
|
/* Power off the backlight: set Brightness Control & Bl off */
|
|
data[1] = 0;
|
|
}
|
|
|
|
/* Update Brightness Control & Backlight */
|
|
data[0] = MIPI_DCS_WRITE_CONTROL_DISPLAY;
|
|
otm8009a_dcs_write_buf(ctx, data, ARRAY_SIZE(data));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct backlight_ops otm8009a_backlight_ops = {
|
|
.update_status = otm8009a_backlight_update_status,
|
|
};
|
|
|
|
static int otm8009a_probe(struct mipi_dsi_device *dsi)
|
|
{
|
|
struct device *dev = &dsi->dev;
|
|
struct otm8009a *ctx;
|
|
int ret;
|
|
|
|
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx)
|
|
return -ENOMEM;
|
|
|
|
ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
|
|
if (IS_ERR(ctx->reset_gpio)) {
|
|
dev_err(dev, "cannot get reset-gpio\n");
|
|
return PTR_ERR(ctx->reset_gpio);
|
|
}
|
|
|
|
ctx->supply = devm_regulator_get(dev, "power");
|
|
if (IS_ERR(ctx->supply)) {
|
|
ret = PTR_ERR(ctx->supply);
|
|
if (ret != -EPROBE_DEFER)
|
|
dev_err(dev, "failed to request regulator: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
mipi_dsi_set_drvdata(dsi, ctx);
|
|
|
|
ctx->dev = dev;
|
|
|
|
dsi->lanes = 2;
|
|
dsi->format = MIPI_DSI_FMT_RGB888;
|
|
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
|
|
MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS;
|
|
|
|
drm_panel_init(&ctx->panel, dev, &otm8009a_drm_funcs,
|
|
DRM_MODE_CONNECTOR_DSI);
|
|
|
|
ctx->bl_dev = devm_backlight_device_register(dev, dev_name(dev),
|
|
dsi->host->dev, ctx,
|
|
&otm8009a_backlight_ops,
|
|
NULL);
|
|
if (IS_ERR(ctx->bl_dev)) {
|
|
ret = PTR_ERR(ctx->bl_dev);
|
|
dev_err(dev, "failed to register backlight: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ctx->bl_dev->props.max_brightness = OTM8009A_BACKLIGHT_MAX;
|
|
ctx->bl_dev->props.brightness = OTM8009A_BACKLIGHT_DEFAULT;
|
|
ctx->bl_dev->props.power = FB_BLANK_POWERDOWN;
|
|
ctx->bl_dev->props.type = BACKLIGHT_RAW;
|
|
|
|
drm_panel_add(&ctx->panel);
|
|
|
|
ret = mipi_dsi_attach(dsi);
|
|
if (ret < 0) {
|
|
dev_err(dev, "mipi_dsi_attach failed. Is host ready?\n");
|
|
drm_panel_remove(&ctx->panel);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int otm8009a_remove(struct mipi_dsi_device *dsi)
|
|
{
|
|
struct otm8009a *ctx = mipi_dsi_get_drvdata(dsi);
|
|
|
|
mipi_dsi_detach(dsi);
|
|
drm_panel_remove(&ctx->panel);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id orisetech_otm8009a_of_match[] = {
|
|
{ .compatible = "orisetech,otm8009a" },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, orisetech_otm8009a_of_match);
|
|
|
|
static struct mipi_dsi_driver orisetech_otm8009a_driver = {
|
|
.probe = otm8009a_probe,
|
|
.remove = otm8009a_remove,
|
|
.driver = {
|
|
.name = "panel-orisetech-otm8009a",
|
|
.of_match_table = orisetech_otm8009a_of_match,
|
|
},
|
|
};
|
|
module_mipi_dsi_driver(orisetech_otm8009a_driver);
|
|
|
|
MODULE_AUTHOR("Philippe Cornu <philippe.cornu@st.com>");
|
|
MODULE_AUTHOR("Yannick Fertre <yannick.fertre@st.com>");
|
|
MODULE_DESCRIPTION("DRM driver for Orise Tech OTM8009A MIPI DSI panel");
|
|
MODULE_LICENSE("GPL v2");
|