diff options
| author | Maximilian Luz <luzmaximilian@gmail.com> | 2021-04-06 01:41:25 +0200 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2021-04-08 14:30:28 +0200 |
| commit | 167f77f7d0b3891941866ae66f9cf4362ec33f93 (patch) | |
| tree | 1528eeea3c7d6d511eb2e701036d5b17ea21dbcd /drivers/power/supply/Kconfig | |
| parent | b6dc03fafe63e0e76c094e4303e6d43bc29a06d7 (diff) | |
power: supply: Add battery driver for Surface Aggregator Module
On newer Microsoft Surface models (specifically 7th-generation, i.e.
Surface Pro 7, Surface Book 3, Surface Laptop 3, and Surface Laptop Go),
battery and AC status/information is no longer handled via standard ACPI
devices, but instead directly via the Surface System Aggregator Module
(SSAM), i.e. the embedded controller on those devices.
While on previous generation models, battery status is also handled via
SSAM, an ACPI shim was present to translate the standard ACPI battery
interface to SSAM requests. The SSAM interface itself, which is modeled
closely after the ACPI interface, has not changed.
This commit introduces a new SSAM client device driver to support
battery status/information via the aforementioned interface on said
Surface models. It is in parts based on the standard ACPI battery
driver.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'drivers/power/supply/Kconfig')
| -rw-r--r-- | drivers/power/supply/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index b9e10506d6a9..5b5054762194 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -801,4 +801,20 @@ config BATTERY_ACER_A500 help Say Y to include support for Acer Iconia Tab A500 battery fuel gauge. +config BATTERY_SURFACE + tristate "Battery driver for 7th-generation Microsoft Surface devices" + depends on SURFACE_AGGREGATOR_REGISTRY + help + Driver for battery devices connected via/managed by the Surface System + Aggregator Module (SSAM). + + This driver provides battery-information and -status support for + Surface devices where said data is not exposed via the standard ACPI + devices. On those models (7th-generation), battery-information is + instead handled directly via SSAM client devices and this driver. + + Say M or Y here to include battery status support for 7th-generation + Microsoft Surface devices, i.e. Surface Pro 7, Surface Laptop 3, + Surface Book 3, and Surface Laptop Go. + endif # POWER_SUPPLY |