drm: Constify topology id

Make the topology id const since we don't want to change it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200313162054.16009-2-ville.syrjala@linux.intel.com
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 644f0ad..462d8ca 100644 (file)
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2392,7 +2392,7 @@ EXPORT_SYMBOL(drm_mode_put_tile_group);
  * tile group or NULL if not found.
  */
 struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
-                                              char topology[8])
+                                              const char topology[8])
 {
        struct drm_tile_group *tg;
        int id;
@@ -2422,7 +2422,7 @@ EXPORT_SYMBOL(drm_mode_get_tile_group);
  * new tile group or NULL.
  */
 struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
-                                                 char topology[8])
+                                                 const char topology[8])
 {
        struct drm_tile_group *tg;
        int ret;

diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 19ae6bb..fd543d1 100644 (file)
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1617,9 +1617,9 @@ struct drm_tile_group {
 };
 
 struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
-                                                 char topology[8]);
+                                                 const char topology[8]);
 struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
-                                              char topology[8]);
+                                              const char topology[8]);
 void drm_mode_put_tile_group(struct drm_device *dev,
                             struct drm_tile_group *tg);