This is a note to let you know that I've just added the patch titled
iio: light: opt3001: Fixed timeout error when 0 lux
to my staging git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git in the staging-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From 26d90b5590579def54382a2fc34cfbe8518a9851 Mon Sep 17 00:00:00 2001
From: Jiri Valek - 2N valek@2n.cz Date: Mon, 20 Sep 2021 14:53:48 +0200 Subject: iio: light: opt3001: Fixed timeout error when 0 lux
Reading from sensor returned timeout error under zero light conditions.
Signed-off-by: Jiri Valek - 2N valek@2n.cz Fixes: ac663db3678a ("iio: light: opt3001: enable operation w/o IRQ") Link: https://lore.kernel.org/r/20210920125351.6569-1-valek@2n.cz Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- drivers/iio/light/opt3001.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c index 52963da401a7..1880bd5bb258 100644 --- a/drivers/iio/light/opt3001.c +++ b/drivers/iio/light/opt3001.c @@ -276,6 +276,8 @@ static int opt3001_get_lux(struct opt3001 *opt, int *val, int *val2) ret = wait_event_timeout(opt->result_ready_queue, opt->result_ready, msecs_to_jiffies(OPT3001_RESULT_READY_LONG)); + if (ret == 0) + return -ETIMEDOUT; } else { /* Sleep for result ready time */ timeout = (opt->int_time == OPT3001_INT_TIME_SHORT) ? @@ -312,9 +314,7 @@ static int opt3001_get_lux(struct opt3001 *opt, int *val, int *val2) /* Disallow IRQ to access the device while lock is active */ opt->ok_to_ignore_lock = false;
- if (ret == 0) - return -ETIMEDOUT; - else if (ret < 0) + if (ret < 0) return ret;
if (opt->use_irq) {