linux-kernel - [PATCH 0/3] power: supply: Acer Aspire 1 embedded controller

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Message-Id: <20231207-aspire1-ec-v1-0-ba9e1c227007@trvn.ru>
Date:   Thu, 07 Dec 2023 16:20:13 +0500
From:   Nikita Travkin <nikita@...n.ru>
To:     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>
Cc:     linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Nikita Travkin <nikita@...n.ru>
Subject: [PATCH 0/3] power: supply: Acer Aspire 1 embedded controller

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>
---
Nikita Travkin (3):
      dt-bindings: power: supply: Add Acer Aspire 1 EC
      power: supply: Add Acer Aspire 1 embedded controller driver
      arm64: dts: qcom: acer-aspire1: Add embedded controller

 .../bindings/power/supply/acer,aspire1-ec.yaml     |  73 ++++
 arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts   |  40 +-
 drivers/power/supply/Kconfig                       |  14 +
 drivers/power/supply/Makefile                      |   1 +
 drivers/power/supply/acer-aspire1-ec.c             | 432 +++++++++++++++++++++
 5 files changed, 559 insertions(+), 1 deletion(-)
---
base-commit: 8e00ce02066e8f6f1ad5eab49a2ede7bf7a5ef64
change-id: 20231206-aspire1-ec-6b3d2cac1a72

Best regards,
-- 
Nikita Travkin <nikita@...n.ru>