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/et8ek8/et8ek8_driver.c b/drivers/media/i2c/et8ek8/et8ek8_driver.c
index 7519863d77b1..3bc238e44f5b 100644
--- a/drivers/media/i2c/et8ek8/et8ek8_driver.c
+++ b/drivers/media/i2c/et8ek8/et8ek8_driver.c
@@ -1433,7 +1433,7 @@ static int et8ek8_probe(struct i2c_client *client)
 		return PTR_ERR(sensor->vana);
 	}
 
-	sensor->ext_clk = devm_clk_get(dev, NULL);
+	sensor->ext_clk = devm_v4l2_sensor_clk_get(dev, NULL);
 	if (IS_ERR(sensor->ext_clk)) {
 		dev_err(&client->dev, "could not get clock\n");
 		return PTR_ERR(sensor->ext_clk);