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authorNicolin Chen <nicoleotsuka@gmail.com>2019-10-21 17:59:22 -0700
committerGuenter Roeck <linux@roeck-us.net>2019-10-28 18:46:55 -0700
commit2ccb4f16d013a0954459061d38172b1c53553ba6 (patch)
tree77bbbd925ae45bdccd1e43d08a82841e3b7d3b0c
parent6fc28b7e0aac8a72217b314dfb5208321d9448e2 (diff)
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>
-rw-r--r--drivers/hwmon/ina3221.c2
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,