[PATCH v2 0/2] media: i2c: it6625: fix MCU reset and host control timing

[Hermes Wu via B4 Relay]

The IT6625/IT6626 are driven through an on-chip MCU. The driver does not
give the MCU enough time in two places: after releasing reset in probe,
and when waiting for the MCU to acknowledge a host control request.
Both can cause spurious failures.

Patch 1 waits 1s after reset release before the chip-ID read.
Patch 2 raises the host control request timeout from 25 ms to 250 ms.

Signed-off-by: Hermes Wu <Hermes.wu@xxxxxxxxxx>
---
Changes in v2:
- Patch 1: increase the post-reset wait from 700 ms to 1s.
- Patch 2: new, raise the host control request timeout to 250 ms.
- Link to v1: https://lore.kernel.org/r/20261006-upstream-it6625-reset-delay-v1-1-e4cb3c74e6d3@xxxxxxxxxx

---
Hermes Wu (2):
      media: i2c: it6625: wait 1s after reset release
      media: i2c: it6625: allow 250 ms for host control requests to complete

 drivers/media/i2c/it6625.c | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)
---
base-commit: 89a3d2a2237e017cdbefcb036db71ce74e67faf5
change-id: 20261006-upstream-it6625-reset-delay-3239507c5f09

Best regards,
-- 
Hermes Wu <Hermes.wu@xxxxxxxxxx>