On Fr, 2026-04-17 at 17:28 +0800, Robby Cai wrote:

On Fri, Apr 17, 2026 at 10:47:48AM +0200, Philipp Zabel wrote:

quoted

On Fr, 2026-04-17 at 16:08 +0800, Robby Cai wrote:

quoted

On i.MX8MQ, the MIPI CSI reset lines are active-low and not self-clearing.
Writing '0' asserts reset and it remains asserted until explicitly
deasserted by software.

This driver previously treated the MIPI CSI reset signals as active-high,
which led to incorrect reset assert/deassert sequencing. This issue was
exposed by commit 6d79bb8fd2aa ("media: imx8mq-mipi-csi2: Explicitly
release reset").

If this patch is backported without 6d79bb8fd2aa, or the other way
around, will that break MIPI CSI-2 on older kernels? That would warrant
a Cc: stable tag.

Yes, will break.
These two patches should be backported as a pair to ensure correct behavior.

Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>

Can you please resend with

Cc: <redacted> # 6d79bb8fd2aa: media: imx8mq-mipi-csi2: Explicitly release reset

regards
Philipp