The driver depends on the external clock frequency. Add a sanity check for
the frequency, by returning an error from probe if it's zero.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
drivers/media/i2c/ccs/ccs-core.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c
index fae8ceded861..08fce285f73a 100644
--- a/drivers/media/i2c/ccs/ccs-core.c
+++ b/drivers/media/i2c/ccs/ccs-core.c
@@ -3275,6 +3275,11 @@ static int ccs_probe(struct i2c_client *client)
return -EINVAL;
}
+ if (!sensor->hwcfg.ext_clk) {
+ dev_err(&client->dev, "cannot work with xclk frequency 0\n");
+ return -EINVAL;
+ }
+
sensor->reset = devm_gpiod_get_optional(&client->dev, "reset",
GPIOD_OUT_HIGH);
if (IS_ERR(sensor->reset))
--
2.29.2
