linux-kernel - Re: [PATCH v1 0/2] media: i2c: add Sony IMX111 CMOS camera sensor driver

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Message-ID: <CAPVz0n1mXvdyzshei8Mbw7KVYCkQjziBA95ton4MKXPnPd0kbQ@mail.gmail.com>
Date: Fri, 29 Aug 2025 21:20:10 +0300
From: Svyatoslav Ryhel <clamor95@...il.com>
To: Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Hans Verkuil <hverkuil@...all.nl>, Hans de Goede <hansg@...nel.org>, Arnd Bergmann <arnd@...db.de>, 
	Dongcheng Yan <dongcheng.yan@...el.com>, André Apitzsch <git@...tzsch.eu>, 
	Sylvain Petinot <sylvain.petinot@...s.st.com>, 
	Benjamin Mugnier <benjamin.mugnier@...s.st.com>, 
	Heimir Thor Sverrisson <heimir.sverrisson@...il.com>, Jingjing Xiong <jingjing.xiong@...el.com>, 
	linux-media@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 0/2] media: i2c: add Sony IMX111 CMOS camera sensor driver

чт, 28 серп. 2025 р. о 19:12 Sakari Ailus <sakari.ailus@...ux.intel.com> пише:
>
> Hi Svyatoslaw,
>
> On Tue, Aug 19, 2025 at 03:04:25PM +0300, Svyatoslav Ryhel wrote:
> > Add driver for Sony IMX111 CMOS sensor found in LG Optimus 4X and Vu
> > smartphones.
>
> Thanks for the set.
>
> I wonder how would the sensor work with the CCS driver. The register layout
> appears to be very much aligned with that (I haven't checked whether there
> are MSRs that depend on the mode).
>

After deeper testing I have found that imx111 may be nokia,smia
compatible, at least most of general registers and CCS logic is
applicable. Some of registers may cause issues, for example,
"phy_ctrl_capability" = 0, 0x0 and some insane pll ranges. Maybe that
can be addressed with a firmware patch idk. The trickiest part is that
each mode requires non-standard and non-common manufacturer code
(0x3xxx ranges). If you can explain how to address these issues, I
would love to add imx111 and a few other modules into list of CCS
supported devices.

> --
> Kind regards,
>
> Sakari Ailus