Implement recommended power-on reset.
ov02c10 documentation states that the hardware reset is active low and that
the reset pulse should be greater than 2 milliseconds.
The power-on timing tables shows that t5 the time between XSHUTDOWN
deassert to system ready is a minimum 5 millseconds.
Implement the recommended power-on reset minimums.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
---
drivers/media/i2c/ov02c10.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/ov02c10.c b/drivers/media/i2c/ov02c10.c
index 595998e60b22..d3dc614a3c01 100644
--- a/drivers/media/i2c/ov02c10.c
+++ b/drivers/media/i2c/ov02c10.c
@@ -696,8 +696,10 @@ static int ov02c10_power_on(struct device *dev)
}
if (ov02c10->reset) {
+ gpiod_set_value_cansleep(ov02c10->reset, 1);
+ usleep_range(2000, 2200);
gpiod_set_value_cansleep(ov02c10->reset, 0);
- usleep_range(1500, 1800);
+ usleep_range(5000, 5100);
}
return 0;
--
2.48.1
