We found some sensors which are much slower (20% at room temperature)
than nominal. According to the data sheet, up to 27% is possible. Now I
add 33% to the nominal time out, hopefully this is enough.
Signed-off-by: Christian Eggers <ceggers@xxxxxxx>
---
drivers/iio/light/as73211.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/light/as73211.c b/drivers/iio/light/as73211.c
index 25e5c386d678..457bf7f4b1f4 100644
--- a/drivers/iio/light/as73211.c
+++ b/drivers/iio/light/as73211.c
@@ -259,10 +259,9 @@ static int as73211_req_data(struct as73211_data *data)
data->osr &= ~AS73211_OSR_SS;
/*
- * Add some extra margin for the timeout. sensor timing is not as precise
- * as our one ...
+ * Add 33% extra margin for the timeout. fclk,min = fclk,typ - 27%.
*/
- time_us += time_us / 8;
+ time_us += time_us / 3;
if (data->client->irq) {
ret = wait_for_completion_timeout(&data->completion, usecs_to_jiffies(time_us));
if (!ret) {
--
Christian Eggers
Embedded software developer
Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRA 57918
Persoenlich haftender Gesellschafter: Arnold & Richter Cine Technik GmbH
Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRB 54477
Geschaeftsfuehrer: Dr. Michael Neuhaeuser; Stephan Schenk; Walter Trauninger; Markus Zeiler
