drm: edid: Constify connector argument to infoframe functions

The drm_hdmi_avi_infoframe_from_display_mode(),
drm_hdmi_vendor_infoframe_from_display_mode() and
drm_hdmi_avi_infoframe_quant_range() functions take a drm_connector that
they don't modify. Mark it as const.

Signed-off-by: Laurent Pinchart <[e-mail]>
Acked-by: Sam Ravnborg <[e-mail]>
Signed-off-by: Sam Ravnborg <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/drm_edid.c

···
 }
 EXPORT_SYMBOL(drm_set_preferred_mode);
 
-static bool is_hdmi2_sink(struct drm_connector *connector)
+static bool is_hdmi2_sink(const struct drm_connector *connector)
 {
 	/*
 	 * FIXME: sil-sii8620 doesn't have a connector around when
···
 }
 EXPORT_SYMBOL(drm_hdmi_infoframe_set_hdr_metadata);
 
-static u8 drm_mode_hdmi_vic(struct drm_connector *connector,
+static u8 drm_mode_hdmi_vic(const struct drm_connector *connector,
 			    const struct drm_display_mode *mode)
 {
 	bool has_hdmi_infoframe = connector ?
···
 	return drm_match_hdmi_mode(mode);
 }
 
-static u8 drm_mode_cea_vic(struct drm_connector *connector,
+static u8 drm_mode_cea_vic(const struct drm_connector *connector,
 			   const struct drm_display_mode *mode)
 {
 	u8 vic;
···
  */
 int
 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
-					 struct drm_connector *connector,
+					 const struct drm_connector *connector,
 					 const struct drm_display_mode *mode)
 {
 	enum hdmi_picture_aspect picture_aspect;
···
  */
 void
 drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
-				   struct drm_connector *connector,
+				   const struct drm_connector *connector,
 				   const struct drm_display_mode *mode,
 				   enum hdmi_quantization_range rgb_quant_range)
 {
···
  */
 int
 drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
-					    struct drm_connector *connector,
+					    const struct drm_connector *connector,
 					    const struct drm_display_mode *mode)
 {
 	/*

include/drm/drm_edid.h

···
 
 int
 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
-					 struct drm_connector *connector,
+					 const struct drm_connector *connector,
 					 const struct drm_display_mode *mode);
 int
 drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
-					    struct drm_connector *connector,
+					    const struct drm_connector *connector,
 					    const struct drm_display_mode *mode);
 
 void
···
 
 void
 drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
-				   struct drm_connector *connector,
+				   const struct drm_connector *connector,
 				   const struct drm_display_mode *mode,
 				   enum hdmi_quantization_range rgb_quant_range);