drm/i915/display: switch the rest of the connectors to struct drm_edid

Convert the remaining uses of struct edid based drm_get_edid(),
drm_connector_update_edid_property() and drm_add_edid_modes() calls to
the struct drm_edid based drm_edid_read_ddc(),
drm_edid_connector_update() and drm_edid_connector_add_modes().

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b1b53bb9004adaa402e061f7df2caf0eb4723a43.1685437501.git.jani.nikula@intel.com

Author: jnikula

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

@@ -176,15 +176,15 @@ enum pipe intel_connector_get_pipe(struct intel_connector *connector)
 /**
  * intel_connector_update_modes - update connector from edid
  * @connector: DRM connector device to use
- * @edid: previously read EDID information
+ * @drm_edid: previously read EDID information
  */
 int intel_connector_update_modes(struct drm_connector *connector,
-				struct edid *edid)
+				 const struct drm_edid *drm_edid)
 {
 	int ret;
 
-	drm_connector_update_edid_property(connector, edid);
-	ret = drm_add_edid_modes(connector, edid);
+	drm_edid_connector_update(connector, drm_edid);
+	ret = drm_edid_connector_add_modes(connector);
 
 	return ret;
 }
@@ -199,15 +199,15 @@ int intel_connector_update_modes(struct drm_connector *connector,
 int intel_ddc_get_modes(struct drm_connector *connector,
 			struct i2c_adapter *adapter)
 {
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 	int ret;
 
-	edid = drm_get_edid(connector, adapter);
-	if (!edid)
+	drm_edid = drm_edid_read_ddc(connector, adapter);
+	if (!drm_edid)
 		return 0;
 
-	ret = intel_connector_update_modes(connector, edid);
-	kfree(edid);
+	ret = intel_connector_update_modes(connector, drm_edid);
+	drm_edid_free(drm_edid);
 
 	return ret;
 }

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

@@ -9,7 +9,7 @@
 #include <linux/types.h>
 
 struct drm_connector;
-struct edid;
+struct drm_edid;
 struct i2c_adapter;
 struct intel_connector;
 struct intel_encoder;
@@ -25,7 +25,7 @@ void intel_connector_attach_encoder(struct intel_connector *connector,
 bool intel_connector_get_hw_state(struct intel_connector *connector);
 enum pipe intel_connector_get_pipe(struct intel_connector *connector);
 int intel_connector_update_modes(struct drm_connector *connector,
-				 struct edid *edid);
+				 const struct drm_edid *drm_edid);
 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
 void intel_attach_force_audio_property(struct drm_connector *connector);
 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);

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

@@ -609,37 +609,38 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
 	return ret;
 }
 
-static struct edid *intel_crt_get_edid(struct drm_connector *connector,
-				struct i2c_adapter *i2c)
+static const struct drm_edid *intel_crt_get_edid(struct drm_connector *connector,
+						 struct i2c_adapter *i2c)
 {
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 
-	edid = drm_get_edid(connector, i2c);
+	drm_edid = drm_edid_read_ddc(connector, i2c);
 
-	if (!edid && !intel_gmbus_is_forced_bit(i2c)) {
+	if (!drm_edid && !intel_gmbus_is_forced_bit(i2c)) {
 		drm_dbg_kms(connector->dev,
 			    "CRT GMBUS EDID read failed, retry using GPIO bit-banging\n");
 		intel_gmbus_force_bit(i2c, true);
-		edid = drm_get_edid(connector, i2c);
+		drm_edid = drm_edid_read_ddc(connector, i2c);
 		intel_gmbus_force_bit(i2c, false);
 	}
 
-	return edid;
+	return drm_edid;
 }
 
 /* local version of intel_ddc_get_modes() to use intel_crt_get_edid() */
 static int intel_crt_ddc_get_modes(struct drm_connector *connector,
 				struct i2c_adapter *adapter)
 {
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 	int ret;
 
-	edid = intel_crt_get_edid(connector, adapter);
-	if (!edid)
+	drm_edid = intel_crt_get_edid(connector, adapter);
+	if (!drm_edid)
 		return 0;
 
-	ret = intel_connector_update_modes(connector, edid);
-	kfree(edid);
+	ret = intel_connector_update_modes(connector, drm_edid);
+
+	drm_edid_free(drm_edid);
 
 	return ret;
 }
@@ -648,14 +649,15 @@ static bool intel_crt_detect_ddc(struct drm_connector *connector)
 {
 	struct intel_crt *crt = intel_attached_crt(to_intel_connector(connector));
 	struct drm_i915_private *dev_priv = to_i915(crt->base.base.dev);
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 	struct i2c_adapter *i2c;
 	bool ret = false;
 
 	i2c = intel_gmbus_get_adapter(dev_priv, dev_priv->display.vbt.crt_ddc_pin);
-	edid = intel_crt_get_edid(connector, i2c);
+	drm_edid = intel_crt_get_edid(connector, i2c);
 
-	if (edid) {
+	if (drm_edid) {
+		const struct edid *edid = drm_edid_raw(drm_edid);
 		bool is_digital = edid->input & DRM_EDID_INPUT_DIGITAL;
 
 		/*
@@ -676,7 +678,7 @@ static bool intel_crt_detect_ddc(struct drm_connector *connector)
 			    "CRT not detected via DDC:0x50 [no valid EDID found]\n");
 	}
 
-	kfree(edid);
+	drm_edid_free(drm_edid);
 
 	return ret;
 }

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

@@ -836,15 +836,17 @@ static int intel_dp_mst_get_ddc_modes(struct drm_connector *connector)
 {
 	struct intel_connector *intel_connector = to_intel_connector(connector);
 	struct intel_dp *intel_dp = intel_connector->mst_port;
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 	int ret;
 
 	if (drm_connector_is_unregistered(connector))
 		return intel_connector_update_modes(connector, NULL);
 
-	edid = drm_dp_mst_get_edid(connector, &intel_dp->mst_mgr, intel_connector->port);
-	ret = intel_connector_update_modes(connector, edid);
-	kfree(edid);
+	drm_edid = drm_dp_mst_edid_read(connector, &intel_dp->mst_mgr, intel_connector->port);
+
+	ret = intel_connector_update_modes(connector, drm_edid);
+
+	drm_edid_free(drm_edid);
 
 	return ret;
 }

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

@@ -2036,34 +2036,35 @@ intel_sdvo_multifunc_encoder(struct intel_sdvo *intel_sdvo)
 	return hweight16(intel_sdvo->caps.output_flags) > 1;
 }
 
-static struct edid *
+static const struct drm_edid *
 intel_sdvo_get_edid(struct drm_connector *connector)
 {
 	struct intel_sdvo *sdvo = intel_attached_sdvo(to_intel_connector(connector));
-	return drm_get_edid(connector, &sdvo->ddc);
+	return drm_edid_read_ddc(connector, &sdvo->ddc);
 }
 
 /* Mac mini hack -- use the same DDC as the analog connector */
-static struct edid *
+static const struct drm_edid *
 intel_sdvo_get_analog_edid(struct drm_connector *connector)
 {
-	struct drm_i915_private *dev_priv = to_i915(connector->dev);
+	struct drm_i915_private *i915 = to_i915(connector->dev);
+	struct i2c_adapter *i2c;
 
-	return drm_get_edid(connector,
-			    intel_gmbus_get_adapter(dev_priv,
-						    dev_priv->display.vbt.crt_ddc_pin));
+	i2c = intel_gmbus_get_adapter(i915, i915->display.vbt.crt_ddc_pin);
+
+	return drm_edid_read_ddc(connector, i2c);
 }
 
 static enum drm_connector_status
 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
 {
 	struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector));
 	enum drm_connector_status status;
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 
-	edid = intel_sdvo_get_edid(connector);
+	drm_edid = intel_sdvo_get_edid(connector);
 
-	if (edid == NULL && intel_sdvo_multifunc_encoder(intel_sdvo)) {
+	if (!drm_edid && intel_sdvo_multifunc_encoder(intel_sdvo)) {
 		u8 ddc, saved_ddc = intel_sdvo->ddc_bus;
 
 		/*
@@ -2072,42 +2073,45 @@ intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
 		 */
 		for (ddc = intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
 			intel_sdvo->ddc_bus = ddc;
-			edid = intel_sdvo_get_edid(connector);
-			if (edid)
+			drm_edid = intel_sdvo_get_edid(connector);
+			if (drm_edid)
 				break;
 		}
 		/*
 		 * If we found the EDID on the other bus,
 		 * assume that is the correct DDC bus.
 		 */
-		if (edid == NULL)
+		if (!drm_edid)
 			intel_sdvo->ddc_bus = saved_ddc;
 	}
 
 	/*
 	 * When there is no edid and no monitor is connected with VGA
 	 * port, try to use the CRT ddc to read the EDID for DVI-connector.
 	 */
-	if (edid == NULL)
-		edid = intel_sdvo_get_analog_edid(connector);
+	if (!drm_edid)
+		drm_edid = intel_sdvo_get_analog_edid(connector);
 
 	status = connector_status_unknown;
-	if (edid != NULL) {
+	if (drm_edid) {
+		const struct edid *edid = drm_edid_raw(drm_edid);
+
 		/* DDC bus is shared, match EDID to connector type */
 		if (edid->input & DRM_EDID_INPUT_DIGITAL)
 			status = connector_status_connected;
 		else
 			status = connector_status_disconnected;
-		kfree(edid);
+		drm_edid_free(drm_edid);
 	}
 
 	return status;
 }
 
 static bool
 intel_sdvo_connector_matches_edid(struct intel_sdvo_connector *sdvo,
-				  struct edid *edid)
+				  const struct drm_edid *drm_edid)
 {
+	const struct edid *edid = drm_edid_raw(drm_edid);
 	bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
 	bool connector_is_digital = !!IS_DIGITAL(sdvo);
 
@@ -2150,22 +2154,23 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
 	else if (IS_TMDS(intel_sdvo_connector))
 		ret = intel_sdvo_tmds_sink_detect(connector);
 	else {
-		struct edid *edid;
+		const struct drm_edid *drm_edid;
 
 		/* if we have an edid check it matches the connection */
-		edid = intel_sdvo_get_edid(connector);
-		if (edid == NULL)
-			edid = intel_sdvo_get_analog_edid(connector);
-		if (edid != NULL) {
+		drm_edid = intel_sdvo_get_edid(connector);
+		if (!drm_edid)
+			drm_edid = intel_sdvo_get_analog_edid(connector);
+		if (drm_edid) {
 			if (intel_sdvo_connector_matches_edid(intel_sdvo_connector,
-							      edid))
+							      drm_edid))
 				ret = connector_status_connected;
 			else
 				ret = connector_status_disconnected;
 
-			kfree(edid);
-		} else
+			drm_edid_free(drm_edid);
+		} else {
 			ret = connector_status_connected;
+		}
 	}
 
 	return ret;
@@ -2174,31 +2179,31 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
 static int intel_sdvo_get_ddc_modes(struct drm_connector *connector)
 {
 	int num_modes = 0;
-	struct edid *edid;
+	const struct drm_edid *drm_edid;
 
 	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
 		      connector->base.id, connector->name);
 
 	/* set the bus switch and get the modes */
-	edid = intel_sdvo_get_edid(connector);
+	drm_edid = intel_sdvo_get_edid(connector);
 
 	/*
 	 * Mac mini hack.  On this device, the DVI-I connector shares one DDC
 	 * link between analog and digital outputs. So, if the regular SDVO
 	 * DDC fails, check to see if the analog output is disconnected, in
 	 * which case we'll look there for the digital DDC data.
 	 */
-	if (!edid)
-		edid = intel_sdvo_get_analog_edid(connector);
+	if (!drm_edid)
+		drm_edid = intel_sdvo_get_analog_edid(connector);
 
-	if (!edid)
+	if (!drm_edid)
 		return 0;
 
 	if (intel_sdvo_connector_matches_edid(to_intel_sdvo_connector(connector),
-					      edid))
-		num_modes += intel_connector_update_modes(connector, edid);
+					      drm_edid))
+		num_modes += intel_connector_update_modes(connector, drm_edid);
 
-	kfree(edid);
+	drm_edid_free(drm_edid);
 
 	return num_modes;
 }