linux-kernel - Re: [PATCH v1 0/6] ACPI: scan: MIPI DiSco for Imaging support

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Date:   Wed, 24 May 2023 20:06:09 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Linux ACPI <linux-acpi@...r.kernel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>
Subject: Re: [PATCH v1 0/6] ACPI: scan: MIPI DiSco for Imaging support

On Wed, May 24, 2023 at 1:48 PM Rafael J. Wysocki <rjw@...ysocki.net> wrote:
>
> Hi Folks,
>
> This basically is a re-write of a recent patch series from Sakari:
>
> https://lore.kernel.org/linux-acpi/20230329100951.1522322-1-sakari.ailus@linux.intel.com
>
> The general idea is the same - CSI-2 resource descriptors, introduced in
> ACPI 6.4 and defined by
>
> https://uefi.org/specs/ACPI/6.5/06_Device_Configuration.html#camera-serial-interface-csi-2-connection-resource-descriptor
>
> are found and used for creating a set of software nodes that represent the CSI-2
> connection graph.
>
> These software nodes need to be available before any scan handlers or ACPI drivers
> are bound to any struct acpi_device objects, so all of that is done at the early
> stage of ACPI device enumeration, but unnecessary ACPI namespace walks are avoided.
>
> The CSI-2 software nodes are populated with data extracted from the CSI-2 resource
> descriptors themselves and from device properties defined by the MIPI DiSco for
> Imaging specification (see https://www.mipi.org/specifications/mipi-disco-imaging).
>
> Patches [4,6/6] come from the original series directly, but the other patches have
> been changes substantially, so I've decided to re-start patch series versioning from
> scratch.
>
> This series is based on the patch at
>
> https://patchwork.kernel.org/project/linux-acpi/patch/12223415.O9o76ZdvQC@kreacher/
>
> applied on top of 6.4-rc3.
>
> Later on, I'll put all of this material into a special git branch for easier
> access.

The patches are now available from the acpi-mipi-disco-imaging branch
in the linux-pm.git tree at kernel.org.

Thanks!