For those that happen to have a Huawei Matebook E Go 2-in-1 laptop or have been considering these ARM laptops, the upcoming Linux 6.15 kernel will be better supporting these devices thanks to a new driver set to be merged.

Queued up via the platform-drivers-x86 branch for the upcoming Linux 6.15 merge window is an embedded controller (EC) driver for the Huawei Matebook E laptops . This EC driver enables Linux to enjoy working battery/charger monitoring, charge controls, Fn-lock key controls, temperature sensors, better USB-C controls, and other functionality.

Pengyu Luo who worked on this Huawei Matebook E Go EC driver explained in the [1]for-next patch :

"There are three variants of which Huawei released the first two simultaneously.

Huawei Matebook E Go LTE(sc8180x), codename seems to be gaokun2.

Huawei Matebook E Go( [2][email protected] ), codename must be gaokun3.

Huawei Matebook E Go 2023( [3][email protected] ), codename should be also gaokun3.

Adding support for the latter two variants for now, this driver should also work for the sc8180x variant according to acpi table files, but I don't have the device to test yet.

Different from other Qualcomm Snapdragon sc8280xp based machines, the Huawei Matebook E Go uses an embedded controller while others use a system called PMIC GLink. This embedded controller can be used to perform 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 supply devices."

Look for this Matebook E Go EC driver in the upcoming Linux 6.15 merge window as part of the platform driver updates.



[1] https://web.git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/commit/?h=for-next&id=7636f090d02e791918bb3c924e695880123d0c59

[2] https://www.phoronix.com/cdn-cgi/l/email-protection

[3] https://www.phoronix.com/cdn-cgi/l/email-protection