From 9be7bde610459df7fc2affdd5b990e01151e0e75 Mon Sep 17 00:00:00 2001 From: mcc45tr Date: Sun, 13 Sep 2026 03:47:40 +0300 Subject: [PATCH] dt-bindings: media: ov8856: allow a bounded probe power-cycle Some board integrations can leave the first SCCB transaction unavailable after cold boot even though the module is healthy after a complete power cycle. Document an explicit opt-in for one bounded identification retry so drivers do not apply the workaround globally. Signed-off-by: mcc45tr --- .../devicetree/bindings/media/i2c/ovti,ov8856.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov8856.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov8856.yaml index d0f577363..e808f04ee 100644 --- a/Documentation/devicetree/bindings/media/i2c/ovti,ov8856.yaml +++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov8856.yaml @@ -60,6 +60,13 @@ properties: This corresponds to the hardware pin XSHUTDOWN which is physically active low. + ovti,probe-power-cycle-retry: + description: + Retry chip identification once after a complete sensor power cycle. + This is intended for modules whose board-level power sequencing can + leave the first SCCB transfer unavailable after a cold boot. + type: boolean + orientation: true rotation: true -- 2.55.0