media: i2c: ov2659: 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 <[e-mail]>
Reviewed-by: Laurent Pinchart <[e-mail]>
Signed-off-by: Mehdi Djait <[e-mail]>
Signed-off-by: Sakari Ailus <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

drivers/media/i2c/ov2659.c

···
 	ov2659->pdata = pdata;
 	ov2659->client = client;
 
-	ov2659->clk = devm_clk_get(&client->dev, "xvclk");
+	ov2659->clk = devm_v4l2_sensor_clk_get(&client->dev, "xvclk");
 	if (IS_ERR(ov2659->clk))
-		return PTR_ERR(ov2659->clk);
+		return dev_err_probe(&client->dev, PTR_ERR(ov2659->clk),
+				     "failed to get xvclk\n");
 
 	ov2659->xvclk_frequency = clk_get_rate(ov2659->clk);
 	if (ov2659->xvclk_frequency < 6000000 ||