linux-kernel - Re: [PATCH v2 00/20] Omnivision OV4689 refactoring and improvements

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Date: Fri, 23 Feb 2024 18:47:49 +0300
From: Mikhail Rudenko <mike.rudenko@...il.com>
To: Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, Laurent
 Pinchart <laurent.pinchart@...asonboard.com>, Jacopo Mondi
 <jacopo@...ndi.org>, Tommaso Merciai <tomm.merciai@...il.com>, Christophe
 JAILLET <christophe.jaillet@...adoo.fr>, Dave Stevenson
 <dave.stevenson@...pberrypi.com>, Mauro Carvalho Chehab
 <mchehab@...nel.org>
Subject: Re: [PATCH v2 00/20] Omnivision OV4689 refactoring and improvements


Hi Sakari,

On 2024-02-23 at 08:43 GMT, Sakari Ailus <sakari.ailus@...ux.intel.com> wrote:

> On Fri, Feb 23, 2024 at 08:15:41AM +0000, Sakari Ailus wrote:
>> Hi Mikhail,
>>
>> On Wed, Feb 21, 2024 at 06:02:15PM +0300, Mikhail Rudenko wrote:
>> >
>> > Hi,
>> >
>> > On 2023-12-18 at 20:40 +03, Mikhail Rudenko <mike.rudenko@...il.com> wrote:
>> >
>> > > Hi,
>> > >
>> > > This series contains refactoring and new features implementation for
>> > > the Omnivision OV4689 sensor driver. Specifically, patches 1, 2, 3, 5,
>> > > 6, 10, 15, 16, 18, and 19 are refactorings, and are not supposed to
>> > > introduce any functional change. Patches 4 and 7 perform migration to
>> > > CCI helpers and subdevice active state respectively, and should not
>> > > introduce any hardware- and/or user-visible change either. Patch 8
>> > > fixes a possible race condition due to v4l2_async_register_subdev_sensor
>> > > being called too early in ov4689_probe, and patch 9 migrates power
>> > > management to PM autosuspend.
>> > >
>> > > Patches 11-14 expose more sensor controls to the userspace, such as
>> > > (read-write) HBLANK, VFLIP/HFLIP, digital gain, and color
>> > > balance. Patch 17 implements configurable analogue crop rectangle via
>> > > .set_selection callback. And finally, patch 20 enables 2x2 binning
>> > > option. It should be noted that publicly available sensor
>> > > documentation is lacking description of many registers and their value
>> > > ranges, so a lot of values had to be found by experimentation.
>> >
>> > Gentle ping on this series. Anything I can do to help getting it
>> > reviewed and merged? Maybe split patches 15-20 which implement cropping
>> > and binning and change the driver away from register list based model
>> > into a separate series? Anyone?
>>
>> Oops, my bad. I'll review these shortly. I can already tell there's not
>> much to do though.
>
> Done.

Thanks for the prompt review! I'll wait a few days to collect more
comments (especially on patches 17, 18, 20) and then post v3.


--
Best regards,
Mikhail Rudenko