diff options
| author | Nicolin Chen <nicoleotsuka@gmail.com> | 2019-10-22 03:59:22 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-10-29 04:46:55 +0300 |
| commit | 2ccb4f16d013a0954459061d38172b1c53553ba6 (patch) | |
| tree | 77bbbd925ae45bdccd1e43d08a82841e3b7d3b0c /drivers/hwmon/ina3221.c | |
| parent | 6fc28b7e0aac8a72217b314dfb5208321d9448e2 (diff) | |
| download | linux-2ccb4f16d013a0954459061d38172b1c53553ba6.tar.xz | |
hwmon: (ina3221) Fix read timeout issue
After introducing "samples" to the calculation of wait time, the
driver might timeout at the regmap_field_read_poll_timeout call,
because the wait time could be longer than the 100000 usec limit
due to a large "samples" number.
So this patch sets the timeout limit to 2 times of the wait time
in order to fix this issue.
Fixes: 5c090abf945b ("hwmon: (ina3221) Add averaging mode support")
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/20191022005922.30239-1-nicoleotsuka@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/ina3221.c')
| -rw-r--r-- | drivers/hwmon/ina3221.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwmon/ina3221.c b/drivers/hwmon/ina3221.c index 0037e2bdacd6..8a51dcf055ea 100644 --- a/drivers/hwmon/ina3221.c +++ b/drivers/hwmon/ina3221.c @@ -170,7 +170,7 @@ static inline int ina3221_wait_for_data(struct ina3221_data *ina) /* Polling the CVRF bit to make sure read data is ready */ return regmap_field_read_poll_timeout(ina->fields[F_CVRF], - cvrf, cvrf, wait, 100000); + cvrf, cvrf, wait, wait * 2); } static int ina3221_read_value(struct ina3221_data *ina, unsigned int reg, |