linux-kernel - Re: [PATCH v5 3/4] platform: arm64: Add Acer Aspire 1 embedded controller driver

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Date: Mon, 18 Mar 2024 13:53:53 +0200 (EET)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Nikita Travkin <nikita@...n.ru>
cc: Hans de Goede <hdegoede@...hat.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>, 
    Bryan O'Donoghue <bryan.odonoghue@...aro.org>, devicetree@...r.kernel.org, 
    LKML <linux-kernel@...r.kernel.org>, linux-arm-msm@...r.kernel.org, 
    platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v5 3/4] platform: arm64: Add Acer Aspire 1 embedded
 controller driver

On Fri, 15 Mar 2024, Nikita Travkin wrote:

> Acer Aspire 1 is a Snapdragon 7c based laptop. It uses an embedded
> controller to perform a set of various functions, such as:
> 
> - Battery and charger monitoring;
> - Keyboard layout control (i.e. fn_lock settings);
> - USB Type-C DP alt mode HPD notifications;
> - Laptop lid status.
> 
> Unfortunately, while all this functionality is implemented in ACPI, it's
> currently not possible to use ACPI to boot Linux on such Qualcomm
> devices. To allow Linux to still support the features provided by EC,
> this driver reimplments the relevant ACPI parts. This allows us to boot
> the laptop with Device Tree and retain all the features.
> 
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> Signed-off-by: Nikita Travkin <nikita@...n.ru>

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>

-- 
 i.