diff options
| author | Maximilian Luz <luzmaximilian@gmail.com> | 2021-04-06 01:41:26 +0200 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2021-04-08 14:30:35 +0200 |
| commit | e61ffb344591fca443be4fc633290cbf15ee3298 (patch) | |
| tree | 0127145a97aa318baccc4e5ff20dac276ac29cd4 /drivers/power/supply/Kconfig | |
| parent | 167f77f7d0b3891941866ae66f9cf4362ec33f93 (diff) | |
power: supply: Add AC 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, AC status is also handled via SSAM,
an ACPI shim was present to translate the standard ACPI AC 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 AC
status/information via the aforementioned interface on said Surface
models.
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 5b5054762194..e696364126f1 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -817,4 +817,20 @@ config BATTERY_SURFACE Microsoft Surface devices, i.e. Surface Pro 7, Surface Laptop 3, Surface Book 3, and Surface Laptop Go. +config CHARGER_SURFACE + tristate "AC driver for 7th-generation Microsoft Surface devices" + depends on SURFACE_AGGREGATOR_REGISTRY + help + Driver for AC devices connected via/managed by the Surface System + Aggregator Module (SSAM). + + This driver provides AC-information and -status support for Surface + devices where said data is not exposed via the standard ACPI devices. + On those models (7th-generation), AC-information is instead handled + directly via a SSAM client device and this driver. + + Say M or Y here to include AC 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 |