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.

Signed-off-by: Mehdi Djait <mehdi.djait@linux.intel.com>

diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c
index 004d0ee5c3f5..70b4cdb1b9af 100644
--- a/drivers/media/i2c/ov5645.c
+++ b/drivers/media/i2c/ov5645.c
@@ -1044,7 +1044,7 @@ static int ov5645_probe(struct i2c_client *client)
 				     "invalid bus type, must be CSI2\n");
 
 	/* get system clock (xclk) */
-	ov5645->xclk = devm_clk_get(dev, NULL);
+	ov5645->xclk = devm_v4l2_sensor_clk_get(dev, NULL);
 	if (IS_ERR(ov5645->xclk))
 		return dev_err_probe(dev, PTR_ERR(ov5645->xclk),
 				     "could not get xclk");