1 files changed, 66 insertions, 69 deletions

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index a2e9bb485c36..8a9079c2ed5c 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1257,10 +1257,10 @@ static void anx7625_power_on(struct anx7625_data *ctx)
 	usleep_range(11000, 12000);
 
 	/* Power on pin enable */
-	gpiod_set_value(ctx->pdata.gpio_p_on, 1);
+	gpiod_set_value_cansleep(ctx->pdata.gpio_p_on, 1);
 	usleep_range(10000, 11000);
 	/* Power reset pin enable */
-	gpiod_set_value(ctx->pdata.gpio_reset, 1);
+	gpiod_set_value_cansleep(ctx->pdata.gpio_reset, 1);
 	usleep_range(10000, 11000);
 
 	DRM_DEV_DEBUG_DRIVER(dev, "power on !\n");
@@ -1280,9 +1280,9 @@ static void anx7625_power_standby(struct anx7625_data *ctx)
 		return;
 	}
 
-	gpiod_set_value(ctx->pdata.gpio_reset, 0);
+	gpiod_set_value_cansleep(ctx->pdata.gpio_reset, 0);
 	usleep_range(1000, 1100);
-	gpiod_set_value(ctx->pdata.gpio_p_on, 0);
+	gpiod_set_value_cansleep(ctx->pdata.gpio_p_on, 0);
 	usleep_range(1000, 1100);
 
 	ret = regulator_bulk_disable(ARRAY_SIZE(ctx->pdata.supplies),
@@ -1814,9 +1814,6 @@ static enum drm_connector_status anx7625_sink_detect(struct anx7625_data *ctx)
 
 	DRM_DEV_DEBUG_DRIVER(dev, "sink detect\n");
 
-	if (ctx->pdata.panel_bridge)
-		return connector_status_connected;
-
 	return ctx->hpd_status ? connector_status_connected :
 				     connector_status_disconnected;
 }
@@ -1952,7 +1949,8 @@ static void anx7625_audio_shutdown(struct device *dev, void *data)
 }
 
 static int anx7625_hdmi_i2s_get_dai_id(struct snd_soc_component *component,
-				       struct device_node *endpoint)
+				       struct device_node *endpoint,
+				       void *data)
 {
 	struct of_endpoint of_ep;
 	int ret;
@@ -2002,8 +2000,10 @@ static int anx7625_audio_get_eld(struct device *dev, void *data,
 		memset(buf, 0, len);
 	} else {
 		dev_dbg(dev, "audio copy eld\n");
+		mutex_lock(&ctx->connector->eld_mutex);
 		memcpy(buf, ctx->connector->eld,
 		       min(sizeof(ctx->connector->eld), len));
+		mutex_unlock(&ctx->connector->eld_mutex);
 	}
 
 	return 0;
@@ -2137,50 +2137,8 @@ static void hdcp_check_work_func(struct work_struct *work)
 	drm_modeset_unlock(&drm_dev->mode_config.connection_mutex);
 }
 
-static int anx7625_connector_atomic_check(struct anx7625_data *ctx,
-					  struct drm_connector_state *state)
-{
-	struct device *dev = ctx->dev;
-	int cp;
-
-	dev_dbg(dev, "hdcp state check\n");
-	cp = state->content_protection;
-
-	if (cp == ctx->hdcp_cp)
-		return 0;
-
-	if (cp == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
-		if (ctx->dp_en) {
-			dev_dbg(dev, "enable HDCP\n");
-			anx7625_hdcp_enable(ctx);
-
-			queue_delayed_work(ctx->hdcp_workqueue,
-					   &ctx->hdcp_work,
-					   msecs_to_jiffies(2000));
-		}
-	}
-
-	if (cp == DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
-		if (ctx->hdcp_cp != DRM_MODE_CONTENT_PROTECTION_ENABLED) {
-			dev_err(dev, "current CP is not ENABLED\n");
-			return -EINVAL;
-		}
-		anx7625_hdcp_disable(ctx);
-		ctx->hdcp_cp = DRM_MODE_CONTENT_PROTECTION_UNDESIRED;
-		drm_hdcp_update_content_protection(ctx->connector,
-						   ctx->hdcp_cp);
-		dev_dbg(dev, "update CP to UNDESIRE\n");
-	}
-
-	if (cp == DRM_MODE_CONTENT_PROTECTION_ENABLED) {
-		dev_err(dev, "Userspace illegal set to PROTECTION ENABLE\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 static int anx7625_bridge_attach(struct drm_bridge *bridge,
+				 struct drm_encoder *encoder,
 				 enum drm_bridge_attach_flags flags)
 {
 	struct anx7625_data *ctx = bridge_to_anx7625(bridge);
@@ -2199,7 +2157,7 @@ static int anx7625_bridge_attach(struct drm_bridge *bridge,
 	}
 
 	if (ctx->pdata.panel_bridge) {
-		err = drm_bridge_attach(bridge->encoder,
+		err = drm_bridge_attach(encoder,
 					ctx->pdata.panel_bridge,
 					&ctx->bridge, flags);
 		if (err)
@@ -2416,19 +2374,20 @@ static int anx7625_bridge_atomic_check(struct drm_bridge *bridge,
 	anx7625_bridge_mode_fixup(bridge, &crtc_state->mode,
 				  &crtc_state->adjusted_mode);
 
-	return anx7625_connector_atomic_check(ctx, conn_state);
+	return 0;
 }
 
 static void anx7625_bridge_atomic_enable(struct drm_bridge *bridge,
-					 struct drm_bridge_state *state)
+					 struct drm_atomic_state *state)
 {
 	struct anx7625_data *ctx = bridge_to_anx7625(bridge);
 	struct device *dev = ctx->dev;
 	struct drm_connector *connector;
+	struct drm_connector_state *conn_state;
 
 	dev_dbg(dev, "drm atomic enable\n");
 
-	connector = drm_atomic_get_new_connector_for_encoder(state->base.state,
+	connector = drm_atomic_get_new_connector_for_encoder(state,
 							     bridge->encoder);
 	if (!connector)
 		return;
@@ -2439,16 +2398,43 @@ static void anx7625_bridge_atomic_enable(struct drm_bridge *bridge,
 	_anx7625_hpd_polling(ctx, 5000 * 100);
 
 	anx7625_dp_start(ctx);
+
+	conn_state = drm_atomic_get_new_connector_state(state, connector);
+
+	if (WARN_ON(!conn_state))
+		return;
+
+	if (conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
+		if (ctx->dp_en) {
+			dev_dbg(dev, "enable HDCP\n");
+			anx7625_hdcp_enable(ctx);
+
+			queue_delayed_work(ctx->hdcp_workqueue,
+					   &ctx->hdcp_work,
+					   msecs_to_jiffies(2000));
+		}
+	}
 }
 
 static void anx7625_bridge_atomic_disable(struct drm_bridge *bridge,
-					  struct drm_bridge_state *old)
+					  struct drm_atomic_state *state)
 {
 	struct anx7625_data *ctx = bridge_to_anx7625(bridge);
 	struct device *dev = ctx->dev;
 
 	dev_dbg(dev, "drm atomic disable\n");
 
+	flush_workqueue(ctx->hdcp_workqueue);
+
+	if (ctx->connector &&
+	    ctx->hdcp_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED) {
+		anx7625_hdcp_disable(ctx);
+		ctx->hdcp_cp = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+		drm_hdcp_update_content_protection(ctx->connector,
+						   ctx->hdcp_cp);
+		dev_dbg(dev, "update CP to DESIRE\n");
+	}
+
 	ctx->connector = NULL;
 	anx7625_dp_stop(ctx);
 
@@ -2486,6 +2472,22 @@ static const struct drm_edid *anx7625_bridge_edid_read(struct drm_bridge *bridge
 	return anx7625_edid_read(ctx);
 }
 
+static void anx7625_bridge_hpd_enable(struct drm_bridge *bridge)
+{
+	struct anx7625_data *ctx = bridge_to_anx7625(bridge);
+	struct device *dev = ctx->dev;
+
+	pm_runtime_get_sync(dev);
+}
+
+static void anx7625_bridge_hpd_disable(struct drm_bridge *bridge)
+{
+	struct anx7625_data *ctx = bridge_to_anx7625(bridge);
+	struct device *dev = ctx->dev;
+
+	pm_runtime_put_sync(dev);
+}
+
 static const struct drm_bridge_funcs anx7625_bridge_funcs = {
 	.attach = anx7625_bridge_attach,
 	.detach = anx7625_bridge_detach,
@@ -2499,6 +2501,8 @@ static const struct drm_bridge_funcs anx7625_bridge_funcs = {
 	.atomic_reset = drm_atomic_helper_bridge_reset,
 	.detect = anx7625_bridge_detect,
 	.edid_read = anx7625_bridge_edid_read,
+	.hpd_enable = anx7625_bridge_hpd_enable,
+	.hpd_disable = anx7625_bridge_hpd_disable,
 };
 
 static int anx7625_register_i2c_dummy_clients(struct anx7625_data *ctx,
@@ -2551,6 +2555,8 @@ static int __maybe_unused anx7625_runtime_pm_suspend(struct device *dev)
 	mutex_lock(&ctx->lock);
 
 	anx7625_stop_dp_work(ctx);
+	if (!ctx->pdata.panel_bridge)
+		anx7625_remove_edid(ctx);
 	anx7625_power_standby(ctx);
 
 	mutex_unlock(&ctx->lock);
@@ -2578,12 +2584,6 @@ static const struct dev_pm_ops anx7625_pm_ops = {
 			   anx7625_runtime_pm_resume, NULL)
 };
 
-static void anx7625_runtime_disable(void *data)
-{
-	pm_runtime_dont_use_autosuspend(data);
-	pm_runtime_disable(data);
-}
-
 static int anx7625_link_bridge(struct drm_dp_aux *aux)
 {
 	struct anx7625_data *platform = container_of(aux, struct anx7625_data, aux);
@@ -2600,9 +2600,8 @@ static int anx7625_link_bridge(struct drm_dp_aux *aux)
 	platform->bridge.of_node = dev->of_node;
 	if (!anx7625_of_panel_on_aux_bus(dev))
 		platform->bridge.ops |= DRM_BRIDGE_OP_EDID;
-	if (!platform->pdata.panel_bridge)
-		platform->bridge.ops |= DRM_BRIDGE_OP_HPD |
-					DRM_BRIDGE_OP_DETECT;
+	if (!platform->pdata.panel_bridge || !anx7625_of_panel_on_aux_bus(dev))
+		platform->bridge.ops |= DRM_BRIDGE_OP_HPD | DRM_BRIDGE_OP_DETECT;
 	platform->bridge.type = platform->pdata.panel_bridge ?
 				    DRM_MODE_CONNECTOR_eDP :
 				    DRM_MODE_CONNECTOR_DisplayPort;
@@ -2717,11 +2716,10 @@ static int anx7625_i2c_probe(struct i2c_client *client)
 		goto free_wq;
 	}
 
-	pm_runtime_enable(dev);
 	pm_runtime_set_autosuspend_delay(dev, 1000);
 	pm_runtime_use_autosuspend(dev);
 	pm_suspend_ignore_children(dev, true);
-	ret = devm_add_action_or_reset(dev, anx7625_runtime_disable, dev);
+	ret = devm_pm_runtime_enable(dev);
 	if (ret)
 		goto free_wq;
 
@@ -2781,7 +2779,6 @@ static void anx7625_i2c_remove(struct i2c_client *client)
 
 	if (platform->hdcp_workqueue) {
 		cancel_delayed_work(&platform->hdcp_work);
-		flush_workqueue(platform->hdcp_workqueue);
 		destroy_workqueue(platform->hdcp_workqueue);
 	}
 
@@ -2793,7 +2790,7 @@ static void anx7625_i2c_remove(struct i2c_client *client)
 }
 
 static const struct i2c_device_id anx7625_id[] = {
-	{"anx7625", 0},
+	{ "anx7625" },
 	{}
 };