On Mon, 20 Jul 2020 13:22:40 -0700
Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> A follow-up patch will extend the number of errors reported by
> cros_ec_cmd_xfer_status(). Specifically, the function will return
> -EOPNOTSUPP if a command is not supported by the EC. Prepare for it.
>
> Cc: Yu-Hsuan Hsu <yuhsuan@xxxxxxxxxxxx>
> Cc: Prashant Malani <pmalani@xxxxxxxxxxxx>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Acked-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> ---
> v2: Added patch
>
> drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
> index a66941fdb385..e3aff95493dd 100644
> --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
> +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
> @@ -73,7 +73,7 @@ static int cros_ec_sensors_read(struct iio_dev *indio_dev,
> st->core.param.sensor_offset.flags = 0;
>
> ret = cros_ec_motion_send_host_cmd(&st->core, 0);
> - if (ret == -EPROTO) {
> + if (ret == -EPROTO || ret == -EOPNOTSUPP) {
> /* Reading calibscale is not supported on older EC. */
> *val = 1;
> *val2 = 0;
