drm/i915/bios: convert intel_bios_init_panel() to drm_edid

Try to use struct drm_edid where possible, even if having to fall back
to looking into struct edid down low via drm_edid_raw().

v2: Rebase

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/897807d62f74f690a173ecd405e25c6ccdd63b98.1674643465.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_bios.c

@@ -619,14 +619,14 @@ static void dump_pnp_id(struct drm_i915_private *i915,
 
 static int opregion_get_panel_type(struct drm_i915_private *i915,
 				   const struct intel_bios_encoder_data *devdata,
-				   const struct edid *edid, bool use_fallback)
+				   const struct drm_edid *drm_edid, bool use_fallback)
 {
 	return intel_opregion_get_panel_type(i915);
 }
 
 static int vbt_get_panel_type(struct drm_i915_private *i915,
 			      const struct intel_bios_encoder_data *devdata,
-			      const struct edid *edid, bool use_fallback)
+			      const struct drm_edid *drm_edid, bool use_fallback)
 {
 	const struct bdb_lvds_options *lvds_options;
 
@@ -651,12 +651,13 @@ static int vbt_get_panel_type(struct drm_i915_private *i915,
 
 static int pnpid_get_panel_type(struct drm_i915_private *i915,
 				const struct intel_bios_encoder_data *devdata,
-				const struct edid *edid, bool use_fallback)
+				const struct drm_edid *drm_edid, bool use_fallback)
 {
 	const struct bdb_lvds_lfp_data *data;
 	const struct bdb_lvds_lfp_data_ptrs *ptrs;
 	const struct lvds_pnp_id *edid_id;
 	struct lvds_pnp_id edid_id_nodate;
+	const struct edid *edid = drm_edid_raw(drm_edid); /* FIXME */
 	int i, best = -1;
 
 	if (!edid)
@@ -700,7 +701,7 @@ static int pnpid_get_panel_type(struct drm_i915_private *i915,
 
 static int fallback_get_panel_type(struct drm_i915_private *i915,
 				   const struct intel_bios_encoder_data *devdata,
-				   const struct edid *edid, bool use_fallback)
+				   const struct drm_edid *drm_edid, bool use_fallback)
 {
 	return use_fallback ? 0 : -1;
 }
@@ -714,13 +715,13 @@ enum panel_type {
 
 static int get_panel_type(struct drm_i915_private *i915,
 			  const struct intel_bios_encoder_data *devdata,
-			  const struct edid *edid, bool use_fallback)
+			  const struct drm_edid *drm_edid, bool use_fallback)
 {
 	struct {
 		const char *name;
 		int (*get_panel_type)(struct drm_i915_private *i915,
 				      const struct intel_bios_encoder_data *devdata,
-				      const struct edid *edid, bool use_fallback);
+				      const struct drm_edid *drm_edid, bool use_fallback);
 		int panel_type;
 	} panel_types[] = {
 		[PANEL_TYPE_OPREGION] = {
@@ -744,7 +745,7 @@ static int get_panel_type(struct drm_i915_private *i915,
 
 	for (i = 0; i < ARRAY_SIZE(panel_types); i++) {
 		panel_types[i].panel_type = panel_types[i].get_panel_type(i915, devdata,
-									  edid, use_fallback);
+									  drm_edid, use_fallback);
 
 		drm_WARN_ON(&i915->drm, panel_types[i].panel_type > 0xf &&
 			    panel_types[i].panel_type != 0xff);
@@ -3186,7 +3187,7 @@ void intel_bios_init(struct drm_i915_private *i915)
 static void intel_bios_init_panel(struct drm_i915_private *i915,
 				  struct intel_panel *panel,
 				  const struct intel_bios_encoder_data *devdata,
-				  const struct edid *edid,
+				  const struct drm_edid *drm_edid,
 				  bool use_fallback)
 {
 	/* already have it? */
@@ -3196,7 +3197,7 @@ static void intel_bios_init_panel(struct drm_i915_private *i915,
 	}
 
 	panel->vbt.panel_type = get_panel_type(i915, devdata,
-					       edid, use_fallback);
+					       drm_edid, use_fallback);
 	if (panel->vbt.panel_type < 0) {
 		drm_WARN_ON(&i915->drm, use_fallback);
 		return;
@@ -3227,9 +3228,9 @@ void intel_bios_init_panel_early(struct drm_i915_private *i915,
 void intel_bios_init_panel_late(struct drm_i915_private *i915,
 				struct intel_panel *panel,
 				const struct intel_bios_encoder_data *devdata,
-				const struct edid *edid)
+				const struct drm_edid *drm_edid)
 {
-	intel_bios_init_panel(i915, panel, devdata, edid, true);
+	intel_bios_init_panel(i915, panel, devdata, drm_edid, true);
 }
 
 /**

drivers/gpu/drm/i915/display/intel_bios.h

@@ -32,8 +32,8 @@
 
 #include <linux/types.h>
 
+struct drm_edid;
 struct drm_i915_private;
-struct edid;
 struct intel_bios_encoder_data;
 struct intel_crtc_state;
 struct intel_encoder;
@@ -238,7 +238,7 @@ void intel_bios_init_panel_early(struct drm_i915_private *dev_priv,
 void intel_bios_init_panel_late(struct drm_i915_private *dev_priv,
 				struct intel_panel *panel,
 				const struct intel_bios_encoder_data *devdata,
-				const struct edid *edid);
+				const struct drm_edid *drm_edid);
 void intel_bios_fini_panel(struct intel_panel *panel);
 void intel_bios_driver_remove(struct drm_i915_private *dev_priv);
 bool intel_bios_is_valid_vbt(const void *buf, size_t size);

drivers/gpu/drm/i915/display/intel_dp.c

@@ -5324,7 +5324,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
 	intel_connector->edid = drm_edid;
 
 	intel_bios_init_panel_late(dev_priv, &intel_connector->panel, encoder->devdata,
-				   IS_ERR_OR_NULL(drm_edid) ? NULL : drm_edid_raw(drm_edid));
+				   IS_ERR(drm_edid) ? NULL : drm_edid);
 
 	intel_panel_add_edid_fixed_modes(intel_connector, true);
 

drivers/gpu/drm/i915/display/intel_lvds.c

@@ -977,7 +977,7 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
 	intel_connector->edid = drm_edid;
 
 	intel_bios_init_panel_late(dev_priv, &intel_connector->panel, NULL,
-				   IS_ERR_OR_NULL(drm_edid) ? NULL : drm_edid_raw(drm_edid));
+				   IS_ERR(drm_edid) ? NULL : drm_edid);
 
 	/* Try EDID first */
 	intel_panel_add_edid_fixed_modes(intel_connector, true);