drm/rockchip: inno_hdmi: switch i2c registration to devm functions

Switch from i2c_add_adapter() to resource managed
devm_i2c_add_adapter(), which will make the cleanup code more simpler.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250512124615.2848731-8-andyshrk@163.com

Author: Andy Yan

drivers/gpu/drm/rockchip/inno_hdmi.c

@@ -1230,10 +1230,9 @@ static struct i2c_adapter *inno_hdmi_i2c_adapter(struct inno_hdmi *hdmi)
 	strscpy(adap->name, "Inno HDMI", sizeof(adap->name));
 	i2c_set_adapdata(adap, hdmi);
 
-	ret = i2c_add_adapter(adap);
+	ret = devm_i2c_add_adapter(hdmi->dev, adap);
 	if (ret) {
 		dev_warn(hdmi->dev, "cannot add %s I2C adapter\n", adap->name);
-		devm_kfree(hdmi->dev, i2c);
 		return ERR_PTR(ret);
 	}
 
@@ -1316,7 +1315,7 @@ static int inno_hdmi_bind(struct device *dev, struct device *master,
 
 	ret = inno_hdmi_register(drm, hdmi);
 	if (ret)
-		goto err_put_adapter;
+		goto err_disable_clk;
 
 	dev_set_drvdata(dev, hdmi);
 
@@ -1330,8 +1329,6 @@ static int inno_hdmi_bind(struct device *dev, struct device *master,
 err_cleanup_hdmi:
 	hdmi->connector.funcs->destroy(&hdmi->connector);
 	hdmi->encoder.encoder.funcs->destroy(&hdmi->encoder.encoder);
-err_put_adapter:
-	i2c_put_adapter(hdmi->ddc);
 err_disable_clk:
 	clk_disable_unprepare(hdmi->refclk);
 err_disable_pclk:
@@ -1347,7 +1344,6 @@ static void inno_hdmi_unbind(struct device *dev, struct device *master,
 	hdmi->connector.funcs->destroy(&hdmi->connector);
 	hdmi->encoder.encoder.funcs->destroy(&hdmi->encoder.encoder);
 
-	i2c_put_adapter(hdmi->ddc);
 	clk_disable_unprepare(hdmi->refclk);
 	clk_disable_unprepare(hdmi->pclk);
 }