From 2ccb4f16d013a0954459061d38172b1c53553ba6 Mon Sep 17 00:00:00 2001 From: Nicolin Chen Date: Mon, 21 Oct 2019 17:59:22 -0700 Subject: 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 Link: https://lore.kernel.org/r/20191022005922.30239-1-nicoleotsuka@gmail.com Signed-off-by: Guenter Roeck --- drivers/hwmon/ina3221.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/hwmon') 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, -- cgit v1.2.3-59-g8ed1b