linux-kernel - Re: [PATCH 1/1] ACPI: scan: Ignore Dell XPS 9320 camera graph port nodes

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Message-ID: <ZmoCUZxlSHy_PclO@kekkonen.localdomain>
Date: Wed, 12 Jun 2024 20:17:21 +0000
From: Sakari Ailus <sakari.ailus@...ux.intel.com>
To: Hans de Goede <hdegoede@...hat.com>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>,
	Genes Lists <lists@...ience.com>, linux-kernel@...r.kernel.org,
	mchehab@...nel.org, hverkuil-cisco@...all.nl,
	laurent.pinchart@...asonboard.com, wentong.wu@...el.com,
	linux-media@...r.kernel.org, linux-acpi@...r.kernel.org,
	"regressions@...ts.linux.dev" <regressions@...ts.linux.dev>
Subject: Re: [PATCH 1/1] ACPI: scan: Ignore Dell XPS 9320 camera graph port
 nodes

Hi Hans,

On Wed, Jun 12, 2024 at 04:30:30PM +0200, Hans de Goede wrote:
> Sakari I know you have been pushing for MIPI camera descriptions under
> ACPI to move to a standardized format and I can see how that is a good
> thing, but atm it seems to mainly cause things to break and before
> the ACPI MIPI DISCO support landed in 6.8 we did not have these issues,
> since the information used by the ipu-bridge code does seem to be correct.

Support for capturing from cameras on IPU6 systems (IPU6 ISYS driver and
IPU bridge changes) was upstreamed for 6.10, with some drivers such as IVSC
(four of them) and IVSC related IPU bridge changes merged for 6.8 already.

We can't guarantee the continued functioning of downstream drivers in cases
where new upstream drivers for the same devices get merged to the kernel,
often with different APIs. You know that as well as I do.

In other words, there was no regression with respect to the upstream
kernel.

-- 
Kind regards,

Sakari Ailus