@@ -114,6 +114,8 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host,
int msm_dsi_host_power_off(struct mipi_dsi_host *host);
int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
const struct drm_display_mode *mode);
+enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host,
+ const struct drm_display_mode *mode);
struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host);
unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host);
struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host);
@@ -2554,6 +2554,32 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host,
return 0;
}
+enum drm_mode_status msm_dsi_host_check_dsc(struct mipi_dsi_host *host,
+ const struct drm_display_mode *mode)
+{
+ struct msm_dsi_host *msm_host = to_msm_dsi_host(host);
+ struct msm_display_dsc_config *dsc = msm_host->dsc;
+ int pic_width = mode->hdisplay;
+ int pic_height = mode->vdisplay;
+
+ if (!msm_host->dsc)
+ return MODE_OK;
+
+ if (pic_width % dsc->drm->slice_width) {
+ pr_err("DSI: pic_width %d has to be multiple of slice %d\n",
+ pic_width, dsc->drm->slice_width);
+ return MODE_H_ILLEGAL;
+ }
+
+ if (pic_height % dsc->drm->slice_height) {
+ pr_err("DSI: pic_height %d has to be multiple of slice %d\n",
+ pic_height, dsc->drm->slice_height);
+ return MODE_V_ILLEGAL;
+ }
+
+ return MODE_OK;
+}
+
struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host)
{
return of_drm_find_panel(to_msm_dsi_host(host)->device_node);
@@ -573,6 +573,17 @@ static void dsi_mgr_bridge_mode_set(struct drm_bridge *bridge,
dsi_mgr_bridge_power_on(bridge);
}
+static enum drm_mode_status dsi_mgr_bridge_mode_valid(struct drm_bridge *bridge,
+ const struct drm_display_info *info,
+ const struct drm_display_mode *mode)
+{
+ int id = dsi_mgr_bridge_get_id(bridge);
+ struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
+ struct mipi_dsi_host *host = msm_dsi->host;
+
+ return msm_dsi_host_check_dsc(host, mode);
+}
+
static const struct drm_connector_funcs dsi_mgr_connector_funcs = {
.detect = dsi_mgr_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
@@ -593,6 +604,7 @@ static const struct drm_bridge_funcs dsi_mgr_bridge_funcs = {
.disable = dsi_mgr_bridge_disable,
.post_disable = dsi_mgr_bridge_post_disable,
.mode_set = dsi_mgr_bridge_mode_set,
+ .mode_valid = dsi_mgr_bridge_mode_valid,
};
/* initialize connector when we're connected to a drm_panel */