mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-05 18:14:07 +08:00
0f3b68b66a
Many of the DSI flags have names opposite to their actual effects, e.g. MIPI_DSI_MODE_EOT_PACKET means that EoT packets will actually be disabled. Fix this by including _NO_ in the flag names, e.g. MIPI_DSI_MODE_NO_EOT_PACKET. Signed-off-by: Nicolas Boichat <drinkcat@chromium.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Robert Foss <robert.foss@linaro.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andrzej Hajda <andrzej.hajda@samsung.com> Reviewed-by: Xin Ji <xji@analogixsemi.com> # anx7625.c Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> # msm/dsi Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210727094435.v3.1.I629b2366a6591410359c7fcf6d385b474b705ca2@changeid
363 lines
9.3 KiB
C
363 lines
9.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
|
|
#include <linux/backlight.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/gpio/consumer.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of.h>
|
|
#include <linux/regulator/consumer.h>
|
|
|
|
#include <drm/drm_mipi_dsi.h>
|
|
#include <drm/drm_modes.h>
|
|
#include <drm/drm_panel.h>
|
|
|
|
struct tm5p5_nt35596 {
|
|
struct drm_panel panel;
|
|
struct mipi_dsi_device *dsi;
|
|
struct regulator_bulk_data supplies[2];
|
|
struct gpio_desc *reset_gpio;
|
|
bool prepared;
|
|
};
|
|
|
|
static inline struct tm5p5_nt35596 *to_tm5p5_nt35596(struct drm_panel *panel)
|
|
{
|
|
return container_of(panel, struct tm5p5_nt35596, panel);
|
|
}
|
|
|
|
#define dsi_generic_write_seq(dsi, seq...) do { \
|
|
static const u8 d[] = { seq }; \
|
|
int ret; \
|
|
ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d)); \
|
|
if (ret < 0) \
|
|
return ret; \
|
|
} while (0)
|
|
|
|
#define dsi_dcs_write_seq(dsi, seq...) do { \
|
|
static const u8 d[] = { seq }; \
|
|
int ret; \
|
|
ret = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
|
|
if (ret < 0) \
|
|
return ret; \
|
|
} while (0)
|
|
|
|
static void tm5p5_nt35596_reset(struct tm5p5_nt35596 *ctx)
|
|
{
|
|
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
|
|
usleep_range(1000, 2000);
|
|
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
|
|
usleep_range(1000, 2000);
|
|
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
|
|
usleep_range(15000, 16000);
|
|
}
|
|
|
|
static int tm5p5_nt35596_on(struct tm5p5_nt35596 *ctx)
|
|
{
|
|
struct mipi_dsi_device *dsi = ctx->dsi;
|
|
|
|
dsi_generic_write_seq(dsi, 0xff, 0x05);
|
|
dsi_generic_write_seq(dsi, 0xfb, 0x01);
|
|
dsi_generic_write_seq(dsi, 0xc5, 0x31);
|
|
dsi_generic_write_seq(dsi, 0xff, 0x04);
|
|
dsi_generic_write_seq(dsi, 0x01, 0x84);
|
|
dsi_generic_write_seq(dsi, 0x05, 0x25);
|
|
dsi_generic_write_seq(dsi, 0x06, 0x01);
|
|
dsi_generic_write_seq(dsi, 0x07, 0x20);
|
|
dsi_generic_write_seq(dsi, 0x08, 0x06);
|
|
dsi_generic_write_seq(dsi, 0x09, 0x08);
|
|
dsi_generic_write_seq(dsi, 0x0a, 0x10);
|
|
dsi_generic_write_seq(dsi, 0x0b, 0x10);
|
|
dsi_generic_write_seq(dsi, 0x0c, 0x10);
|
|
dsi_generic_write_seq(dsi, 0x0d, 0x14);
|
|
dsi_generic_write_seq(dsi, 0x0e, 0x14);
|
|
dsi_generic_write_seq(dsi, 0x0f, 0x14);
|
|
dsi_generic_write_seq(dsi, 0x10, 0x14);
|
|
dsi_generic_write_seq(dsi, 0x11, 0x14);
|
|
dsi_generic_write_seq(dsi, 0x12, 0x14);
|
|
dsi_generic_write_seq(dsi, 0x17, 0xf3);
|
|
dsi_generic_write_seq(dsi, 0x18, 0xc0);
|
|
dsi_generic_write_seq(dsi, 0x19, 0xc0);
|
|
dsi_generic_write_seq(dsi, 0x1a, 0xc0);
|
|
dsi_generic_write_seq(dsi, 0x1b, 0xb3);
|
|
dsi_generic_write_seq(dsi, 0x1c, 0xb3);
|
|
dsi_generic_write_seq(dsi, 0x1d, 0xb3);
|
|
dsi_generic_write_seq(dsi, 0x1e, 0xb3);
|
|
dsi_generic_write_seq(dsi, 0x1f, 0xb3);
|
|
dsi_generic_write_seq(dsi, 0x20, 0xb3);
|
|
dsi_generic_write_seq(dsi, 0xfb, 0x01);
|
|
dsi_generic_write_seq(dsi, 0xff, 0x00);
|
|
dsi_generic_write_seq(dsi, 0xfb, 0x01);
|
|
dsi_generic_write_seq(dsi, 0x35, 0x01);
|
|
dsi_generic_write_seq(dsi, 0xd3, 0x06);
|
|
dsi_generic_write_seq(dsi, 0xd4, 0x04);
|
|
dsi_generic_write_seq(dsi, 0x5e, 0x0d);
|
|
dsi_generic_write_seq(dsi, 0x11, 0x00);
|
|
msleep(100);
|
|
dsi_generic_write_seq(dsi, 0x29, 0x00);
|
|
dsi_generic_write_seq(dsi, 0x53, 0x24);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tm5p5_nt35596_off(struct tm5p5_nt35596 *ctx)
|
|
{
|
|
struct mipi_dsi_device *dsi = ctx->dsi;
|
|
struct device *dev = &dsi->dev;
|
|
int ret;
|
|
|
|
ret = mipi_dsi_dcs_set_display_off(dsi);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to set display off: %d\n", ret);
|
|
return ret;
|
|
}
|
|
msleep(60);
|
|
|
|
ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
dsi_dcs_write_seq(dsi, 0x4f, 0x01);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tm5p5_nt35596_prepare(struct drm_panel *panel)
|
|
{
|
|
struct tm5p5_nt35596 *ctx = to_tm5p5_nt35596(panel);
|
|
struct device *dev = &ctx->dsi->dev;
|
|
int ret;
|
|
|
|
if (ctx->prepared)
|
|
return 0;
|
|
|
|
ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to enable regulators: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
tm5p5_nt35596_reset(ctx);
|
|
|
|
ret = tm5p5_nt35596_on(ctx);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to initialize panel: %d\n", ret);
|
|
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
|
|
regulator_bulk_disable(ARRAY_SIZE(ctx->supplies),
|
|
ctx->supplies);
|
|
return ret;
|
|
}
|
|
|
|
ctx->prepared = true;
|
|
return 0;
|
|
}
|
|
|
|
static int tm5p5_nt35596_unprepare(struct drm_panel *panel)
|
|
{
|
|
struct tm5p5_nt35596 *ctx = to_tm5p5_nt35596(panel);
|
|
struct device *dev = &ctx->dsi->dev;
|
|
int ret;
|
|
|
|
if (!ctx->prepared)
|
|
return 0;
|
|
|
|
ret = tm5p5_nt35596_off(ctx);
|
|
if (ret < 0)
|
|
dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
|
|
|
|
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
|
|
regulator_bulk_disable(ARRAY_SIZE(ctx->supplies),
|
|
ctx->supplies);
|
|
|
|
ctx->prepared = false;
|
|
return 0;
|
|
}
|
|
|
|
static const struct drm_display_mode tm5p5_nt35596_mode = {
|
|
.clock = (1080 + 100 + 8 + 16) * (1920 + 4 + 2 + 4) * 60 / 1000,
|
|
.hdisplay = 1080,
|
|
.hsync_start = 1080 + 100,
|
|
.hsync_end = 1080 + 100 + 8,
|
|
.htotal = 1080 + 100 + 8 + 16,
|
|
.vdisplay = 1920,
|
|
.vsync_start = 1920 + 4,
|
|
.vsync_end = 1920 + 4 + 2,
|
|
.vtotal = 1920 + 4 + 2 + 4,
|
|
.width_mm = 68,
|
|
.height_mm = 121,
|
|
};
|
|
|
|
static int tm5p5_nt35596_get_modes(struct drm_panel *panel,
|
|
struct drm_connector *connector)
|
|
{
|
|
struct drm_display_mode *mode;
|
|
|
|
mode = drm_mode_duplicate(connector->dev, &tm5p5_nt35596_mode);
|
|
if (!mode)
|
|
return -ENOMEM;
|
|
|
|
drm_mode_set_name(mode);
|
|
|
|
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
|
|
connector->display_info.width_mm = mode->width_mm;
|
|
connector->display_info.height_mm = mode->height_mm;
|
|
drm_mode_probed_add(connector, mode);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static const struct drm_panel_funcs tm5p5_nt35596_panel_funcs = {
|
|
.prepare = tm5p5_nt35596_prepare,
|
|
.unprepare = tm5p5_nt35596_unprepare,
|
|
.get_modes = tm5p5_nt35596_get_modes,
|
|
};
|
|
|
|
static int tm5p5_nt35596_bl_update_status(struct backlight_device *bl)
|
|
{
|
|
struct mipi_dsi_device *dsi = bl_get_data(bl);
|
|
u16 brightness = bl->props.brightness;
|
|
int ret;
|
|
|
|
if (bl->props.power != FB_BLANK_UNBLANK ||
|
|
bl->props.fb_blank != FB_BLANK_UNBLANK ||
|
|
bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
|
|
brightness = 0;
|
|
|
|
dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
|
|
|
|
ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tm5p5_nt35596_bl_get_brightness(struct backlight_device *bl)
|
|
{
|
|
struct mipi_dsi_device *dsi = bl_get_data(bl);
|
|
u16 brightness = bl->props.brightness;
|
|
int ret;
|
|
|
|
dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
|
|
|
|
ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
|
|
|
|
return brightness & 0xff;
|
|
}
|
|
|
|
static const struct backlight_ops tm5p5_nt35596_bl_ops = {
|
|
.update_status = tm5p5_nt35596_bl_update_status,
|
|
.get_brightness = tm5p5_nt35596_bl_get_brightness,
|
|
};
|
|
|
|
static struct backlight_device *
|
|
tm5p5_nt35596_create_backlight(struct mipi_dsi_device *dsi)
|
|
{
|
|
struct device *dev = &dsi->dev;
|
|
const struct backlight_properties props = {
|
|
.type = BACKLIGHT_RAW,
|
|
.brightness = 255,
|
|
.max_brightness = 255,
|
|
};
|
|
|
|
return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
|
|
&tm5p5_nt35596_bl_ops, &props);
|
|
}
|
|
|
|
static int tm5p5_nt35596_probe(struct mipi_dsi_device *dsi)
|
|
{
|
|
struct device *dev = &dsi->dev;
|
|
struct tm5p5_nt35596 *ctx;
|
|
int ret;
|
|
|
|
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
|
|
if (!ctx)
|
|
return -ENOMEM;
|
|
|
|
ctx->supplies[0].supply = "vdd";
|
|
ctx->supplies[1].supply = "vddio";
|
|
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
|
|
ctx->supplies);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to get regulators: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
|
|
if (IS_ERR(ctx->reset_gpio)) {
|
|
ret = PTR_ERR(ctx->reset_gpio);
|
|
dev_err(dev, "Failed to get reset-gpios: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ctx->dsi = dsi;
|
|
mipi_dsi_set_drvdata(dsi, ctx);
|
|
|
|
dsi->lanes = 4;
|
|
dsi->format = MIPI_DSI_FMT_RGB888;
|
|
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
|
|
MIPI_DSI_MODE_VIDEO_HSE | MIPI_DSI_MODE_NO_EOT_PACKET |
|
|
MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM;
|
|
|
|
drm_panel_init(&ctx->panel, dev, &tm5p5_nt35596_panel_funcs,
|
|
DRM_MODE_CONNECTOR_DSI);
|
|
|
|
ctx->panel.backlight = tm5p5_nt35596_create_backlight(dsi);
|
|
if (IS_ERR(ctx->panel.backlight)) {
|
|
ret = PTR_ERR(ctx->panel.backlight);
|
|
dev_err(dev, "Failed to create backlight: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
drm_panel_add(&ctx->panel);
|
|
|
|
ret = mipi_dsi_attach(dsi);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tm5p5_nt35596_remove(struct mipi_dsi_device *dsi)
|
|
{
|
|
struct tm5p5_nt35596 *ctx = mipi_dsi_get_drvdata(dsi);
|
|
int ret;
|
|
|
|
ret = mipi_dsi_detach(dsi);
|
|
if (ret < 0)
|
|
dev_err(&dsi->dev,
|
|
"Failed to detach from DSI host: %d\n", ret);
|
|
|
|
drm_panel_remove(&ctx->panel);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id tm5p5_nt35596_of_match[] = {
|
|
{ .compatible = "asus,z00t-tm5p5-n35596" },
|
|
{ /* sentinel */ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, tm5p5_nt35596_of_match);
|
|
|
|
static struct mipi_dsi_driver tm5p5_nt35596_driver = {
|
|
.probe = tm5p5_nt35596_probe,
|
|
.remove = tm5p5_nt35596_remove,
|
|
.driver = {
|
|
.name = "panel-tm5p5-nt35596",
|
|
.of_match_table = tm5p5_nt35596_of_match,
|
|
},
|
|
};
|
|
module_mipi_dsi_driver(tm5p5_nt35596_driver);
|
|
|
|
MODULE_AUTHOR("Konrad Dybcio <konradybcio@gmail.com>");
|
|
MODULE_DESCRIPTION("DRM driver for tm5p5 nt35596 1080p video mode dsi panel");
|
|
MODULE_LICENSE("GPL v2");
|