Add support for the rotation property described by the
common panel bindings. The information is forwarded to
userspace using the orientation property.
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-dsi-cm.c | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/panel/panel-dsi-cm.c b/drivers/gpu/drm/panel/panel-dsi-cm.c
index fef9ba5319c2..b043ebb9c247 100644
--- a/drivers/gpu/drm/panel/panel-dsi-cm.c
+++ b/drivers/gpu/drm/panel/panel-dsi-cm.c
@@ -58,6 +58,7 @@ struct panel_drv_data {
int width_mm;
int height_mm;
+ enum drm_panel_orientation panel_orientation;
/* runtime variables */
bool enabled;
@@ -458,6 +459,7 @@ static int dsicm_get_modes(struct drm_panel *panel,
connector->display_info.width_mm = ddata->width_mm;
connector->display_info.height_mm = ddata->height_mm;
+ connector->display_info.panel_orientation = ddata->panel_orientation;
drm_mode_probed_add(connector, mode);
@@ -479,7 +481,7 @@ static int dsicm_probe_of(struct mipi_dsi_device *dsi)
struct panel_drv_data *ddata = mipi_dsi_get_drvdata(dsi);
struct display_timing timing;
struct videomode vm;
- int err;
+ int err, rotation;
vm.hactive = 864;
vm.vactive = 480;
@@ -509,6 +511,26 @@ static int dsicm_probe_of(struct mipi_dsi_device *dsi)
ddata->height_mm = 0;
of_property_read_u32(node, "height-mm", &ddata->height_mm);
+ rotation = -1;
+ of_property_read_u32(node, "rotation", &rotation);
+ switch (rotation) {
+ case 0:
+ ddata->panel_orientation = DRM_MODE_PANEL_ORIENTATION_NORMAL;
+ break;
+ case 90:
+ ddata->panel_orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP;
+ break;
+ case 180:
+ ddata->panel_orientation = DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP;
+ break;
+ case 270:
+ ddata->panel_orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP;
+ break;
+ default:
+ ddata->panel_orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
+ break;
+ }
+
ddata->supplies[0].supply = "vpnl";
ddata->supplies[1].supply = "vddi";
err = devm_regulator_bulk_get(&dsi->dev, DCS_REGULATOR_SUPPLY_NUM,
--
2.25.0
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