Re: [PATCH v2 00/11] media: Add Lenovo Yoga Book YB1-X91 camera support

[Andy Shevchenko]

On Thu, Aug 27, 2026 at 08:17:45PM +0200, Maurizio Casciano wrote:
> The Lenovo Yoga Book YB1-X91L exposes an OV2740 front sensor and an
> OV8858 rear sensor through the Cherry Trail AtomISP. Its firmware does
> not provide enough information for the existing sensor and IPU bridge
> drivers to construct the complete camera links.
> 
> Add the ACPI IDs and bridge data, describe both AtomISP camera links,
> support the Yoga Book sensor clocks and modes, expose raw Bayer capture,
> add per-channel white-balance controls, and add the WV517S rear-camera
> lens actuator.
> 
> Raw capture is selected through the normal V4L2 raw pixel formats. There
> is no module parameter or separate private ABI. Processed formats retain
> the existing behavior, while raw formats expose the complete CSI-2
> transport frames required by the ISP2401 copy pipeline.

Do not start new version in the email thread of the previous one!

> The series is based on mainline at 73e3f0710014.

Unneeded statement, the --base puts data (and it did) in the cover letter.
Tools know about it.

> All patches pass strict
> checkpatch with no errors, warnings or checks. Pahole reports a 64-byte
> ov2740_mode with no holes and a 792-byte ov8858 with the new clock-rate
> field naturally aligned. A clean 20-job bindeb-pkg build containing the
> same final source state completed successfully.
> 
> Runtime testing used a Lenovo Yoga Book YB1-X91L. Both sensors, AtomISP
> and WV517S bound. Focus position 300 was accepted. Captures passed with:
> 
> - front raw BG10: 1932x1092, 4472832 bytes;
> - rear raw BG10: 3264x2448, 16293888 bytes;
> - front processed YU12: 1920x1080; and
> - rear processed JPEG: 3248x2432, 1530647 bytes.
> 
> The raw format was selected and streamed in the same v4l2-ctl invocation,
> as reopening the video node restores its default format. Both raw files
> were non-empty and distinct, and the rear full-resolution JPEG completed
> without AtomISP, sensor or runtime-PM errors.

-- 
With Best Regards,
Andy Shevchenko