drm/rockchip: inno_hdmi: Replace drm_detect_hdmi_monitor() with is_hdmi

Once EDID is parsed, the monitor HDMI support information is available
through drm_display_info.is_hdmi.

This driver calls drm_detect_hdmi_monitor() to receive the same
information and stores its own cached value, which is less efficient.

Avoid calling drm_detect_hdmi_monitor() and use drm_display_info.is_hdmi
instead and also remove hdmi_data_info.sink_is_hdmi as it is no longer
necessary.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220421170725.903361-3-jose.exposito89@gmail.com

drivers/gpu/drm/rockchip/inno_hdmi.c

@@ -30,7 +30,6 @@
 
 struct hdmi_data_info {
 	int vic;
-	bool sink_is_hdmi;
 	bool sink_has_audio;
 	unsigned int enc_in_format;
 	unsigned int enc_out_format;
@@ -433,6 +432,8 @@ static int inno_hdmi_config_video_timing(struct inno_hdmi *hdmi,
 static int inno_hdmi_setup(struct inno_hdmi *hdmi,
 			   struct drm_display_mode *mode)
 {
+	struct drm_display_info *display = &hdmi->connector.display_info;
+
 	hdmi->hdmi_data.vic = drm_match_cea_mode(mode);
 
 	hdmi->hdmi_data.enc_in_format = HDMI_COLORSPACE_RGB;
@@ -452,13 +453,13 @@ static int inno_hdmi_setup(struct inno_hdmi *hdmi,
 
 	/* Set HDMI Mode */
 	hdmi_writeb(hdmi, HDMI_HDCP_CTRL,
-		    v_HDMI_DVI(hdmi->hdmi_data.sink_is_hdmi));
+		    v_HDMI_DVI(display->is_hdmi));
 
 	inno_hdmi_config_video_timing(hdmi, mode);
 
 	inno_hdmi_config_video_csc(hdmi);
 
-	if (hdmi->hdmi_data.sink_is_hdmi) {
+	if (display->is_hdmi) {
 		inno_hdmi_config_video_avi(hdmi, mode);
 		inno_hdmi_config_video_vsi(hdmi, mode);
 	}
@@ -553,7 +554,6 @@ static int inno_hdmi_connector_get_modes(struct drm_connector *connector)
 
 	edid = drm_get_edid(connector, hdmi->ddc);
 	if (edid) {
-		hdmi->hdmi_data.sink_is_hdmi = drm_detect_hdmi_monitor(edid);
 		hdmi->hdmi_data.sink_has_audio = drm_detect_monitor_audio(edid);
 		drm_connector_update_edid_property(connector, edid);
 		ret = drm_add_edid_modes(connector, edid);