drm/bridge: lt9611uxc: switch to ->edid_read callback

Prefer using the struct drm_edid based callback and functions.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/40fc5eaf2fa34a9d604fe5291ae2a41623dd391d.1706038510.git.jani.nikula@intel.com

drivers/gpu/drm/bridge/lontium-lt9611uxc.c

@@ -495,8 +495,8 @@ static int lt9611uxc_get_edid_block(void *data, u8 *buf, unsigned int block, siz
 	return 0;
 };
 
-static struct edid *lt9611uxc_bridge_get_edid(struct drm_bridge *bridge,
-					      struct drm_connector *connector)
+static const struct drm_edid *lt9611uxc_bridge_edid_read(struct drm_bridge *bridge,
+							 struct drm_connector *connector)
 {
 	struct lt9611uxc *lt9611uxc = bridge_to_lt9611uxc(bridge);
 	int ret;
@@ -510,7 +510,7 @@ static struct edid *lt9611uxc_bridge_get_edid(struct drm_bridge *bridge,
 		return NULL;
 	}
 
-	return drm_do_get_edid(connector, lt9611uxc_get_edid_block, lt9611uxc);
+	return drm_edid_read_custom(connector, lt9611uxc_get_edid_block, lt9611uxc);
 }
 
 static const struct drm_bridge_funcs lt9611uxc_bridge_funcs = {
@@ -518,7 +518,7 @@ static const struct drm_bridge_funcs lt9611uxc_bridge_funcs = {
 	.mode_valid = lt9611uxc_bridge_mode_valid,
 	.mode_set = lt9611uxc_bridge_mode_set,
 	.detect = lt9611uxc_bridge_detect,
-	.get_edid = lt9611uxc_bridge_get_edid,
+	.edid_read = lt9611uxc_bridge_edid_read,
 };
 
 static int lt9611uxc_parse_dt(struct device *dev,