drm/ingenic: Properly compute timings when using a 3x8-bit panel

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
OpenDingux · Oct 20, 2020 · b1fb952 · b1fb952
1 parent ac837a9
commit b1fb952
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -678,6 +678,7 @@ static int ingenic_drm_encoder_atomic_check(struct drm_encoder *encoder,
 					    struct drm_connector_state *conn_state)
 {
 	struct drm_display_info *info = &conn_state->connector->display_info;
+	struct drm_display_mode *mode = &crtc_state->adjusted_mode;
 
 	if (info->num_bus_formats != 1)
 		return -EINVAL;
@@ -686,10 +687,16 @@ static int ingenic_drm_encoder_atomic_check(struct drm_encoder *encoder,
 		return 0;
 
 	switch (*info->bus_formats) {
+	case MEDIA_BUS_FMT_RGB888_3X8:
+		mode->crtc_clock = mode->clock * 3;
+		mode->crtc_hsync_start = mode->hsync_start * 3;
+		mode->crtc_hsync_end = mode->hsync_end * 3;
+		mode->crtc_hdisplay = mode->hdisplay;
+		mode->crtc_htotal = mode->htotal * 3;
+		return 0;
 	case MEDIA_BUS_FMT_RGB565_1X16:
 	case MEDIA_BUS_FMT_RGB666_1X18:
 	case MEDIA_BUS_FMT_RGB888_1X24:
-	case MEDIA_BUS_FMT_RGB888_3X8:
 		return 0;
 	default:
 		return -EINVAL;