diff options
| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2020-10-08 18:43:56 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-01-12 17:52:31 +0100 |
| commit | 2f23ecbf40c8c6572017a036505695e1c2ebb7c4 (patch) | |
| tree | df1519dbeb1093330a5682ff34c01e82275f0db2 /drivers/media/i2c | |
| parent | 2fed6c84dc6fb9e374466d8a0ba86eb6ca7868f8 (diff) | |
media: ccs: Add a sanity check for external clock frequency
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@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/i2c')
| -rw-r--r-- | drivers/media/i2c/ccs/ccs-core.c | 5 |
1 files changed, 5 insertions, 0 deletions
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)) |