linux-kernel - Re: [PATCH v4 2/4] platform: Add ARM64 platform directory

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Date: Tue, 12 Mar 2024 11:36:51 +0000
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: Nikita Travkin <nikita@...n.ru>, Hans de Goede <hdegoede@...hat.com>,
 Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
 Sebastian Reichel <sre@...nel.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, cros-qcom-dts-watchers@...omium.org,
 Andy Gross <agross@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v4 2/4] platform: Add ARM64 platform directory

On 12/03/2024 08:42, Nikita Travkin wrote:
> Some ARM64 based laptops and computers require vendor/board specific
> drivers for their embedded controllers. Even though usually the most
> important functionality of those devices is implemented inside ACPI,
> unfortunately Linux doesn't currently have great support for ACPI on
> platforms like Qualcomm Snapdragon that are used in most ARM64 laptops
> today. Instead Linux relies on Device Tree for Qualcomm based devices
> and it's significantly easier to reimplement the EC functionality in
> a dedicated driver than to make use of ACPI code.
> 
> This commit introduces a new platform/arm64 subdirectory to give a
> place to such drivers for EC-like devices.
> 
> A new MAINTAINERS entry is added for this directory. Patches to files in
> this directory will be taken up by the platform-drivers-x86 team (i.e.
> Hans de Goede and Mark Gross).
> 
> Signed-off-by: Nikita Travkin <nikita@...n.ru>
> ---
>   MAINTAINERS                     |  9 +++++++++
>   drivers/platform/Kconfig        |  2 ++
>   drivers/platform/Makefile       |  1 +
>   drivers/platform/arm64/Kconfig  | 19 +++++++++++++++++++
>   drivers/platform/arm64/Makefile |  6 ++++++
>   5 files changed, 37 insertions(+)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index b43102ca365d..ec8d706a99aa 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3050,6 +3050,15 @@ F:	drivers/mmc/host/sdhci-of-arasan.c
>   N:	zynq
>   N:	xilinx
>   
> +ARM64 PLATFORM DRIVERS
> +M:	Hans de Goede <hdegoede@...hat.com>
> +M:	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
> +L:	platform-driver-x86@...r.kernel.org
> +S:	Maintained
> +Q:	https://patchwork.kernel.org/project/platform-driver-x86/list/
> +T:	git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git

Surely some sort of Arm specific mailing list should be added here ? 
platform-drivers-x86 for arm64 platform drivers standalone, makes little 
sense.

Perhaps for each new SoC class added - you could add the appropriate 
mailing list linux-arm-msm is suspiciously missing from the list even 
though the only driver that will live in this directory after this 
series is a qcom based device.

And if tomorrow someone added a Rockchip based EC controller then you'd 
assume the rockchip mailing list should get a ping.

---
bod