Changes in Makefile

5c44f48e91deefdd42e567a2779d331937c97cd0 - platform: arm64: Add driver for EC found on Qualcomm reference devices

Mon, 11 May 2026 14:43:20 +0200

platform: arm64: Add driver for EC found on Qualcomm reference devicesAdd Embedded controller driver support for Hamoa/Purwa/Glymur qualcommreference boards. It handles fan control, temperature sensors, accessto EC state changes and supports reporting suspend entry/exit to theEC.Co-developed-by: Maya Matuszczyk Signed-off-by: Maya Matuszczyk Signed-off-by: Sibi Sankar Reviewed-by: Dmitry Baryshkov Acked-by: Konrad Dybcio Tested-by: Akhil P Oommen Co-developed-by: Anvesh Jain P Signed-off-by: Anvesh Jain P Link: https://patch.msgid.link/20260511-add-driver-for-ec-v9-2-e5437c39b7f8@oss.qualcomm.comReviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen List of files: /linux/drivers/platform/arm64/Makefile

60b7ab6ce030939d86c26f591967fbe7938b05da - platform: arm64: thinkpad-t14s-ec: new driver

Thu, 18 Sep 2025 23:20:27 +0200

platform: arm64: thinkpad-t14s-ec: new driverIntroduce EC driver for the ThinkPad T14s Gen6 Snapdragon, which is intheory compatible with ThinkPad ACPI. On Linux the system is booted withdevice tree, which is not supported by the ThinkPad ACPI driver(drivers/platform/x86/lenovo/thinkpad_acpi.c). Also most of the hardwarecompatibility is handled via ACPI tables, which are obviously not usedwhen booting via device tree. Thus adding DT compatibility to theexisting driver is not worth it as there is almost no code sharing.The driver currently exposes features, which are not availablevia other means: * Extra Keys * System LEDs * Keyboard Backlight ControlThe driver has been developed by reading the ACPI DSDT. Thereare some more features around thermal control, which are notyet supported by the driver.The speaker mute and mic mute LEDs need some additional changesin the ALSA UCM to be set automatically.Tested-by: Neil Armstrong # on Thinkpad T14S OLEDReviewed-by: Bryan O'Donoghue Signed-off-by: Sebastian Reichel Link: https://patch.msgid.link/20250918-thinkpad-t14s-ec-v5-2-ac0bc6382c5c@collabora.com[ij: folded in patch from Chen Ni ]Link: https://patch.msgid.link/20250926091302.817919-1-nichen@iscas.ac.cn[ij: folded in patch from Lukas Bulwahn ]Link: https://patch.msgid.link/20250926071859.138396-1-lukas.bulwahn@redhat.comReviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen List of files: /linux/drivers/platform/arm64/Makefile

7636f090d02e791918bb3c924e695880123d0c59 - platform: arm64: add Huawei Matebook E Go EC driver

Fri, 14 Feb 2025 19:06:55 +0100

platform: arm64: add Huawei Matebook E Go EC driverThere are three variants of which Huawei released the first twosimultaneously.Huawei Matebook E Go LTE(sc8180x), codename seems to be gaokun2.Huawei Matebook E Go(sc8280xp@3.0GHz), codename must be gaokun3. (see [1])Huawei Matebook E Go 2023(sc8280xp@2.69GHz), codename should be also gaokun3.Adding support for the latter two variants for now, this driver shouldalso work for the sc8180x variant according to acpi table files, but Idon't have the device to test yet.Different from other Qualcomm Snapdragon sc8280xp based machines, theHuawei Matebook E Go uses an embedded controller while others usea system called PMIC GLink. This embedded controller can be used toperform a set of various functions, including, but not limited to:- Battery and charger monitoring;- Charge control and smart charge;- Fn_lock settings;- Tablet lid status;- Temperature sensors;- USB Type-C notifications (ports orientation, DP alt mode HPD);- USB Type-C PD (according to observation, up to 48w).Add a driver for the EC which creates devices for UCSI and power supplydevices.This driver is inspired by the following drivers: drivers/platform/arm64/acer-aspire1-ec.c drivers/platform/arm64/lenovo-yoga-c630.c drivers/platform/x86/huawei-wmi.cAlso thanks for reviewers' working. They have made this patch improvea lot.[1] https://bugzilla.kernel.org/show_bug.cgi?id=219645Signed-off-by: Pengyu Luo Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20250214180656.28599-3-mitltlatltl@gmail.comSigned-off-by: Ilpo Järvinen List of files: /linux/drivers/platform/arm64/Makefile

5e5f2f92cccc29f356422d3cbc104f7f42430f22 - platform: arm64: add Lenovo Yoga C630 WOS EC driver

Fri, 14 Jun 2024 01:43:39 +0200

platform: arm64: add Lenovo Yoga C630 WOS EC driverLenovo Yoga C630 WOS is a laptop using Snapdragon 850 SoC. Like manylaptops it uses an embedded controller (EC) to perform various platformoperations, including, but not limited, to Type-C port control or powersupply handlng.Add the driver for the EC, that creates devices for UCSI and powersupply devices.Reviewed-by: Bryan O'Donoghue Signed-off-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20240614-yoga-ec-driver-v7-2-9f0b9b40ae76@linaro.org[ij: added #include ]Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen List of files: /linux/drivers/platform/arm64/Makefile

2b3efb7c515111eaa009f014b16bce8417fb2828 - platform: arm64: Add Acer Aspire 1 embedded controller driver

Fri, 15 Mar 2024 14:51:17 +0100

platform: arm64: Add Acer Aspire 1 embedded controller driverAcer Aspire 1 is a Snapdragon 7c based laptop. It uses an embeddedcontroller 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'scurrently not possible to use ACPI to boot Linux on such Qualcommdevices. To allow Linux to still support the features provided by EC,this driver reimplments the relevant ACPI parts. This allows us to bootthe laptop with Device Tree and retain all the features.Reviewed-by: Bryan O'Donoghue Signed-off-by: Nikita Travkin Reviewed-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20240315-aspire1-ec-v5-3-f93381deff39@trvn.ruSigned-off-by: Hans de Goede List of files: /linux/drivers/platform/arm64/Makefile

363c8aea25728604537b170a1cc24e2f46844896 - platform: Add ARM64 platform directory

Fri, 15 Mar 2024 14:51:16 +0100

platform: Add ARM64 platform directorySome ARM64 based laptops and computers require vendor/board specificdrivers for their embedded controllers. Even though usually the mostimportant functionality of those devices is implemented inside ACPI,unfortunately Linux doesn't currently have great support for ACPI onplatforms like Qualcomm Snapdragon that are used in most ARM64 laptopstoday. Instead Linux relies on Device Tree for Qualcomm based devicesand it's significantly easier to reimplement the EC functionality ina dedicated driver than to make use of ACPI code.This commit introduces a new platform/arm64 subdirectory to give aplace to such drivers for EC-like devices.A new MAINTAINERS entry is added for this directory. Patches to files inthis directory will be taken up by the platform-drivers-x86 team (i.e.Hans de Goede and Ilpo Järvinen) with additional review from BryanO'Donoghue to represent ARM64 maintainers.Signed-off-by: Nikita Travkin Acked-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20240315-aspire1-ec-v5-2-f93381deff39@trvn.ruReviewed-by: Hans de Goede Signed-off-by: Hans de Goede List of files: /linux/drivers/platform/arm64/Makefile