drm/bridge: anx7625: Convert to devm_i2c_new_dummy_device()

Simplify the resource management.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Xin Ji <xji@analogixsemi.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220706125254.2474095-2-hsinyi@chromium.org

drivers/gpu/drm/bridge/analogix/anx7625.c

@@ -2436,82 +2436,44 @@ static const struct drm_bridge_funcs anx7625_bridge_funcs = {
 static int anx7625_register_i2c_dummy_clients(struct anx7625_data *ctx,
 					      struct i2c_client *client)
 {
-	int err = 0;
+	struct device *dev = &ctx->client->dev;
 
-	ctx->i2c.tx_p0_client = i2c_new_dummy_device(client->adapter,
+	ctx->i2c.tx_p0_client = devm_i2c_new_dummy_device(dev, client->adapter,
 							  TX_P0_ADDR >> 1);
 	if (IS_ERR(ctx->i2c.tx_p0_client))
 		return PTR_ERR(ctx->i2c.tx_p0_client);
 
-	ctx->i2c.tx_p1_client = i2c_new_dummy_device(client->adapter,
+	ctx->i2c.tx_p1_client = devm_i2c_new_dummy_device(dev, client->adapter,
 							  TX_P1_ADDR >> 1);
-	if (IS_ERR(ctx->i2c.tx_p1_client)) {
-		err = PTR_ERR(ctx->i2c.tx_p1_client);
-		goto free_tx_p0;
-	}
+	if (IS_ERR(ctx->i2c.tx_p1_client))
+		return PTR_ERR(ctx->i2c.tx_p1_client);
 
-	ctx->i2c.tx_p2_client = i2c_new_dummy_device(client->adapter,
+	ctx->i2c.tx_p2_client = devm_i2c_new_dummy_device(dev, client->adapter,
 							  TX_P2_ADDR >> 1);
-	if (IS_ERR(ctx->i2c.tx_p2_client)) {
-		err = PTR_ERR(ctx->i2c.tx_p2_client);
-		goto free_tx_p1;
-	}
+	if (IS_ERR(ctx->i2c.tx_p2_client))
+		return PTR_ERR(ctx->i2c.tx_p2_client);
 
-	ctx->i2c.rx_p0_client = i2c_new_dummy_device(client->adapter,
+	ctx->i2c.rx_p0_client = devm_i2c_new_dummy_device(dev, client->adapter,
 							  RX_P0_ADDR >> 1);
-	if (IS_ERR(ctx->i2c.rx_p0_client)) {
-		err = PTR_ERR(ctx->i2c.rx_p0_client);
-		goto free_tx_p2;
-	}
+	if (IS_ERR(ctx->i2c.rx_p0_client))
+		return PTR_ERR(ctx->i2c.rx_p0_client);
 
-	ctx->i2c.rx_p1_client = i2c_new_dummy_device(client->adapter,
+	ctx->i2c.rx_p1_client = devm_i2c_new_dummy_device(dev, client->adapter,
 							  RX_P1_ADDR >> 1);
-	if (IS_ERR(ctx->i2c.rx_p1_client)) {
-		err = PTR_ERR(ctx->i2c.rx_p1_client);
-		goto free_rx_p0;
-	}
+	if (IS_ERR(ctx->i2c.rx_p1_client))
+		return PTR_ERR(ctx->i2c.rx_p1_client);
 
-	ctx->i2c.rx_p2_client = i2c_new_dummy_device(client->adapter,
+	ctx->i2c.rx_p2_client = devm_i2c_new_dummy_device(dev, client->adapter,
 							  RX_P2_ADDR >> 1);
-	if (IS_ERR(ctx->i2c.rx_p2_client)) {
-		err = PTR_ERR(ctx->i2c.rx_p2_client);
-		goto free_rx_p1;
-	}
+	if (IS_ERR(ctx->i2c.rx_p2_client))
+		return PTR_ERR(ctx->i2c.rx_p2_client);
 
-	ctx->i2c.tcpc_client = i2c_new_dummy_device(client->adapter,
+	ctx->i2c.tcpc_client = devm_i2c_new_dummy_device(dev, client->adapter,
 							 TCPC_INTERFACE_ADDR >> 1);
-	if (IS_ERR(ctx->i2c.tcpc_client)) {
-		err = PTR_ERR(ctx->i2c.tcpc_client);
-		goto free_rx_p2;
-	}
+	if (IS_ERR(ctx->i2c.tcpc_client))
+		return PTR_ERR(ctx->i2c.tcpc_client);
 
 	return 0;
-
-free_rx_p2:
-	i2c_unregister_device(ctx->i2c.rx_p2_client);
-free_rx_p1:
-	i2c_unregister_device(ctx->i2c.rx_p1_client);
-free_rx_p0:
-	i2c_unregister_device(ctx->i2c.rx_p0_client);
-free_tx_p2:
-	i2c_unregister_device(ctx->i2c.tx_p2_client);
-free_tx_p1:
-	i2c_unregister_device(ctx->i2c.tx_p1_client);
-free_tx_p0:
-	i2c_unregister_device(ctx->i2c.tx_p0_client);
-
-	return err;
-}
-
-static void anx7625_unregister_i2c_dummy_clients(struct anx7625_data *ctx)
-{
-	i2c_unregister_device(ctx->i2c.tx_p0_client);
-	i2c_unregister_device(ctx->i2c.tx_p1_client);
-	i2c_unregister_device(ctx->i2c.tx_p2_client);
-	i2c_unregister_device(ctx->i2c.rx_p0_client);
-	i2c_unregister_device(ctx->i2c.rx_p1_client);
-	i2c_unregister_device(ctx->i2c.rx_p2_client);
-	i2c_unregister_device(ctx->i2c.tcpc_client);
 }
 
 static int __maybe_unused anx7625_runtime_pm_suspend(struct device *dev)
@@ -2723,8 +2685,6 @@ static int anx7625_i2c_probe(struct i2c_client *client,
 	if (!platform->pdata.low_power_mode)
 		pm_runtime_put_sync_suspend(&client->dev);
 
-	anx7625_unregister_i2c_dummy_clients(platform);
-
 free_wq:
 	if (platform->workqueue)
 		destroy_workqueue(platform->workqueue);
@@ -2754,8 +2714,6 @@ static int anx7625_i2c_remove(struct i2c_client *client)
 	if (!platform->pdata.low_power_mode)
 		pm_runtime_put_sync_suspend(&client->dev);
 
-	anx7625_unregister_i2c_dummy_clients(platform);
-
 	if (platform->pdata.audio_en)
 		anx7625_unregister_audio(platform);