From: Mehdi Djait <mehdi.djait@linux.intel.com>
Date: Thu, 26 Jun 2025 13:34:13 +0000 (+0200)
Subject: media: i2c: mt9t112: Use the v4l2 helper for obtaining the clock
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=e49ee5d80be194901b5b0672dbe400df6ae8716b;p=users%2Fhch%2Fmisc.git

media: i2c: mt9t112: Use the v4l2 helper for obtaining the clock

devm_clk_get() fails on ACPI-based platforms, where firmware does not
provide a direct reference to the clock producer.

Replace devm_clk_get() with the new v4l2 helper
devm_v4l2_sensor_clk_get() that works on both DT- and ACPI-based
platforms to retrieve a reference to the clock producer from firmware.

Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
---

diff --git a/drivers/media/i2c/mt9t112.c b/drivers/media/i2c/mt9t112.c
index 878dff9b7577..2d2c840fc002 100644
--- a/drivers/media/i2c/mt9t112.c
+++ b/drivers/media/i2c/mt9t112.c
@@ -1078,13 +1078,12 @@ static int mt9t112_probe(struct i2c_client *client)
 
 	v4l2_i2c_subdev_init(&priv->subdev, client, &mt9t112_subdev_ops);
 
-	priv->clk = devm_clk_get(&client->dev, "extclk");
-	if (PTR_ERR(priv->clk) == -ENOENT) {
+	priv->clk = devm_v4l2_sensor_clk_get(&client->dev, "extclk");
+	if (PTR_ERR(priv->clk) == -ENOENT)
 		priv->clk = NULL;
-	} else if (IS_ERR(priv->clk)) {
-		dev_err(&client->dev, "Unable to get clock \"extclk\"\n");
-		return PTR_ERR(priv->clk);
-	}
+	else if (IS_ERR(priv->clk))
+		return dev_err_probe(&client->dev, PTR_ERR(priv->clk),
+				     "Unable to get clock \"extclk\"\n");
 
 	priv->standby_gpio = devm_gpiod_get_optional(&client->dev, "standby",
 						     GPIOD_OUT_HIGH);