linux-kernel - Re: [PATCH v5 0/4] platform: arm64: Acer Aspire 1 embedded controller

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Date: Mon, 25 Mar 2024 15:50:59 +0100
From: Hans de Goede <hdegoede@...hat.com>
To: Nikita Travkin <nikita@...n.ru>,
 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>,
 Bryan O'Donoghue <bryan.odonoghue@...aro.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 v5 0/4] platform: arm64: Acer Aspire 1 embedded controller

Hi,

On 3/15/24 2:51 PM, Nikita Travkin wrote:
> The laptop contains an embedded controller that provides a set of
> features:
> 
> - Battery and charger monitoring
> - USB Type-C DP alt mode HPD monitoring
> - Lid status detection
> - Small amount of keyboard configuration*
> 
> [*] The keyboard is handled by the same EC but it has a dedicated i2c
> bus and is already enabled. This port only provides fn key behavior
> configuration.
> 
> Unfortunately, while all this functionality is implemented in ACPI, it's
> currently not possible to use ACPI to boot Linux on such Qualcomm
> devices. Thus this series implements and enables a new driver that
> provides support for the EC features.
> 
> The EC would be one of the last pieces to get almost full support for the
> Acer Aspire 1 laptop in the upstream Linux kernel.
> 
> This series is similar to the EC driver for Lenovo Yoga C630, proposed
> in [1] but seemingly never followed up...
> 
> [1] https://lore.kernel.org/all/20230205152809.2233436-1-dmitry.baryshkov@linaro.org/
> 
> Signed-off-by: Nikita Travkin <nikita@...n.ru>

Thank you for your patch-series, I've applied the series to my
review-hans branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

I've fixed the Kconfig typo Randy spotted while applying this.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans





> ---
> Changes in v5:
> - Various cleanups (Bryan, Ilpo)
> - Add Bryan as Reviewer for platform/arm64 (Bryan, Ilpo)
> - Link to v4: https://lore.kernel.org/r/20240312-aspire1-ec-v4-0-bd8e3eea212f@trvn.ru
> 
> Changes in v4:
> - Move to platform/arm64 (Sebastian, Hans)
> - Drop fn mode dt property (Rob)
> - Add fn_lock attribute in sysfs (Rob)
> - Report psy present correctly (Sebastian)
> - Link to v3: https://lore.kernel.org/r/20240220-aspire1-ec-v3-0-02cb139a4931@trvn.ru
> 
> Changes in v3:
> - Supress warning on few no-op events.
> - Invert the fn key behavior (Rob, Conor)
> - Link to v2: https://lore.kernel.org/r/20231212-aspire1-ec-v2-0-ca495ea0a7ac@trvn.ru
> 
> Changes in v2:
> - Drop incorrectly allowed reg in the ec connector binding (Krzysztof)
> - Minor style changes (Konrad)
> - Link to v1: https://lore.kernel.org/r/20231207-aspire1-ec-v1-0-ba9e1c227007@trvn.ru
> 
> ---
> Nikita Travkin (4):
>       dt-bindings: platform: Add Acer Aspire 1 EC
>       platform: Add ARM64 platform directory
>       platform: arm64: Add Acer Aspire 1 embedded controller driver
>       arm64: dts: qcom: acer-aspire1: Add embedded controller
> 
>  .../bindings/platform/acer,aspire1-ec.yaml         |  60 +++
>  MAINTAINERS                                        |  16 +
>  arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts   |  40 +-
>  drivers/platform/Kconfig                           |   2 +
>  drivers/platform/Makefile                          |   1 +
>  drivers/platform/arm64/Kconfig                     |  35 ++
>  drivers/platform/arm64/Makefile                    |   8 +
>  drivers/platform/arm64/acer-aspire1-ec.c           | 562 +++++++++++++++++++++
>  8 files changed, 723 insertions(+), 1 deletion(-)
> ---
> base-commit: a1e7655b77e3391b58ac28256789ea45b1685abb
> change-id: 20231206-aspire1-ec-6b3d2cac1a72
> 
> Best regards,