| Message ID | 20250315134009.157132-4-bryan.odonoghue@linaro.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | ov02c10: OF extensions and fixups | expand |
On 15/03/2025 13:40, Bryan O'Donoghue wrote: > The power-on timing tables shows that t5 the time between XSHUTDOWN > deassert to system ready is a minimum 5 millseconds. The power-on timing table shows that .... minimum 5 milliseconds. -- bod
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;
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@linaro.org> --- drivers/media/i2c/ov02c10.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)