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path: root/drivers/gpu/drm/panel/panel-raydium-rm68200.c
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Diffstat (limited to 'drivers/gpu/drm/panel/panel-raydium-rm68200.c')
-rw-r--r--drivers/gpu/drm/panel/panel-raydium-rm68200.c117
1 files changed, 36 insertions, 81 deletions
diff --git a/drivers/gpu/drm/panel/panel-raydium-rm68200.c b/drivers/gpu/drm/panel/panel-raydium-rm68200.c
index 77593533abcd..669b5f5c1ad9 100644
--- a/drivers/gpu/drm/panel/panel-raydium-rm68200.c
+++ b/drivers/gpu/drm/panel/panel-raydium-rm68200.c
@@ -6,14 +6,16 @@
* Yannick Fertre <yannick.fertre@st.com>
*/
-#include <linux/backlight.h>
+#include <linux/delay.h>
#include <linux/gpio/consumer.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
#include <linux/regulator/consumer.h>
#include <video/mipi_display.h>
-#include <drm/drmP.h>
#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
/*** Manufacturer Command Set ***/
@@ -75,22 +77,18 @@ struct rm68200 {
struct drm_panel panel;
struct gpio_desc *reset_gpio;
struct regulator *supply;
- struct backlight_device *backlight;
- bool prepared;
- bool enabled;
};
static const struct drm_display_mode default_mode = {
- .clock = 52582,
+ .clock = 54000,
.hdisplay = 720,
- .hsync_start = 720 + 38,
- .hsync_end = 720 + 38 + 8,
- .htotal = 720 + 38 + 8 + 38,
+ .hsync_start = 720 + 48,
+ .hsync_end = 720 + 48 + 9,
+ .htotal = 720 + 48 + 9 + 48,
.vdisplay = 1280,
.vsync_start = 1280 + 12,
- .vsync_end = 1280 + 12 + 4,
- .vtotal = 1280 + 12 + 4 + 12,
- .vrefresh = 50,
+ .vsync_end = 1280 + 12 + 5,
+ .vtotal = 1280 + 12 + 5 + 12,
.flags = 0,
.width_mm = 68,
.height_mm = 122,
@@ -109,8 +107,7 @@ static void rm68200_dcs_write_buf(struct rm68200 *ctx, const void *data,
err = mipi_dsi_dcs_write_buffer(dsi, data, len);
if (err < 0)
- DRM_ERROR_RATELIMITED("MIPI DSI DCS write buffer failed: %d\n",
- err);
+ dev_err_ratelimited(ctx->dev, "MIPI DSI DCS write buffer failed: %d\n", err);
}
static void rm68200_dcs_write_cmd(struct rm68200 *ctx, u8 cmd, u8 value)
@@ -120,7 +117,7 @@ static void rm68200_dcs_write_cmd(struct rm68200 *ctx, u8 cmd, u8 value)
err = mipi_dsi_dcs_write(dsi, cmd, &value, 1);
if (err < 0)
- DRM_ERROR_RATELIMITED("MIPI DSI DCS write failed: %d\n", err);
+ dev_err_ratelimited(ctx->dev, "MIPI DSI DCS write failed: %d\n", err);
}
#define dcs_write_seq(ctx, seq...) \
@@ -232,36 +229,19 @@ static void rm68200_init_sequence(struct rm68200 *ctx)
dcs_write_seq(ctx, MCS_CMD_MODE_SW, MCS_CMD1_UCS);
}
-static int rm68200_disable(struct drm_panel *panel)
-{
- struct rm68200 *ctx = panel_to_rm68200(panel);
-
- if (!ctx->enabled)
- return 0;
-
- backlight_disable(ctx->backlight);
-
- ctx->enabled = false;
-
- return 0;
-}
-
static int rm68200_unprepare(struct drm_panel *panel)
{
struct rm68200 *ctx = panel_to_rm68200(panel);
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
int ret;
- if (!ctx->prepared)
- return 0;
-
ret = mipi_dsi_dcs_set_display_off(dsi);
if (ret)
- DRM_WARN("failed to set display off: %d\n", ret);
+ dev_warn(panel->dev, "failed to set display off: %d\n", ret);
ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
if (ret)
- DRM_WARN("failed to enter sleep mode: %d\n", ret);
+ dev_warn(panel->dev, "failed to enter sleep mode: %d\n", ret);
msleep(120);
@@ -272,8 +252,6 @@ static int rm68200_unprepare(struct drm_panel *panel)
regulator_disable(ctx->supply);
- ctx->prepared = false;
-
return 0;
}
@@ -283,12 +261,9 @@ static int rm68200_prepare(struct drm_panel *panel)
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
int ret;
- if (ctx->prepared)
- return 0;
-
ret = regulator_enable(ctx->supply);
if (ret < 0) {
- DRM_ERROR("failed to enable supply: %d\n", ret);
+ dev_err(ctx->dev, "failed to enable supply: %d\n", ret);
return ret;
}
@@ -313,53 +288,36 @@ static int rm68200_prepare(struct drm_panel *panel)
msleep(20);
- ctx->prepared = true;
-
- return 0;
-}
-
-static int rm68200_enable(struct drm_panel *panel)
-{
- struct rm68200 *ctx = panel_to_rm68200(panel);
-
- if (ctx->enabled)
- return 0;
-
- backlight_enable(ctx->backlight);
-
- ctx->enabled = true;
-
return 0;
}
-static int rm68200_get_modes(struct drm_panel *panel)
+static int rm68200_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
{
struct drm_display_mode *mode;
- mode = drm_mode_duplicate(panel->drm, &default_mode);
+ mode = drm_mode_duplicate(connector->dev, &default_mode);
if (!mode) {
- DRM_ERROR("failed to add mode %ux%ux@%u\n",
- default_mode.hdisplay, default_mode.vdisplay,
- default_mode.vrefresh);
+ dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
+ default_mode.hdisplay, default_mode.vdisplay,
+ drm_mode_vrefresh(&default_mode));
return -ENOMEM;
}
drm_mode_set_name(mode);
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
- drm_mode_probed_add(panel->connector, mode);
+ drm_mode_probed_add(connector, mode);
- panel->connector->display_info.width_mm = mode->width_mm;
- panel->connector->display_info.height_mm = mode->height_mm;
+ connector->display_info.width_mm = mode->width_mm;
+ connector->display_info.height_mm = mode->height_mm;
return 1;
}
static const struct drm_panel_funcs rm68200_drm_funcs = {
- .disable = rm68200_disable,
.unprepare = rm68200_unprepare,
.prepare = rm68200_prepare,
- .enable = rm68200_enable,
.get_modes = rm68200_get_modes,
};
@@ -369,9 +327,11 @@ static int rm68200_probe(struct mipi_dsi_device *dsi)
struct rm68200 *ctx;
int ret;
- ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
- if (!ctx)
- return -ENOMEM;
+ ctx = devm_drm_panel_alloc(dev, struct rm68200, panel,
+ &rm68200_drm_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ if (IS_ERR(ctx))
+ return PTR_ERR(ctx);
ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ctx->reset_gpio)) {
@@ -383,14 +343,11 @@ static int rm68200_probe(struct mipi_dsi_device *dsi)
ctx->supply = devm_regulator_get(dev, "power");
if (IS_ERR(ctx->supply)) {
ret = PTR_ERR(ctx->supply);
- dev_err(dev, "cannot get regulator: %d\n", ret);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "cannot get regulator: %d\n", ret);
return ret;
}
- ctx->backlight = devm_of_find_backlight(dev);
- if (IS_ERR(ctx->backlight))
- return PTR_ERR(ctx->backlight);
-
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dev = dev;
@@ -398,11 +355,11 @@ static int rm68200_probe(struct mipi_dsi_device *dsi)
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_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS;
- drm_panel_init(&ctx->panel);
- ctx->panel.dev = dev;
- ctx->panel.funcs = &rm68200_drm_funcs;
+ ret = drm_panel_of_backlight(&ctx->panel);
+ if (ret)
+ return ret;
drm_panel_add(&ctx->panel);
@@ -416,14 +373,12 @@ static int rm68200_probe(struct mipi_dsi_device *dsi)
return 0;
}
-static int rm68200_remove(struct mipi_dsi_device *dsi)
+static void rm68200_remove(struct mipi_dsi_device *dsi)
{
struct rm68200 *ctx = mipi_dsi_get_drvdata(dsi);
mipi_dsi_detach(dsi);
drm_panel_remove(&ctx->panel);
-
- return 0;
}
static const struct of_device_id raydium_rm68200_of_match[] = {
generated by cgit (git 2.34.1) at 2025-12-25 08:48:48 +0000