[PATCH AUTOSEL 4.14 001/103] iio: adc: max9611: explicitly cast gain_selectors

Sasha Levin
2019-11-08T11:43:17Z

From: Stefan Agner <stefan@agner.ch>

[ Upstream commit b1ec0802503820ccbc894aadfd2a44da20232f5e ]

After finding a reasonable gain, the function converts the configured
gain to a gain configuration option selector enum max9611_csa_gain.
Make the conversion clearly visible by using an explicit cast. This
also avoids a warning seen with clang:
drivers/iio/adc/max9611.c:292:16: warning: implicit conversion from
enumeration type 'enum max9611_conf_ids' to different enumeration
type 'enum max9611_csa_gain' [-Wenum-conversion]
*csa_gain = gain_selectors[i];
~ ^~~~~~~~~~~~~~~~~

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iio/adc/max9611.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/max9611.c b/drivers/iio/adc/max9611.c
index c61fbf5602718..33be07c78b96f 100644
--- a/drivers/iio/adc/max9611.c
+++ b/drivers/iio/adc/max9611.c
@@ -289,7 +289,7 @@ static int max9611_read_csa_voltage(struct max9611_dev *max9611,
return ret;

if (*adc_raw > 0) {
- *csa_gain = gain_selectors[i];
+ *csa_gain = (enum max9611_csa_gain)gain_selectors[i];
return 0;
}
}
--
2.20.1