2 Commits

Author	SHA1	Message	Date
Qiheng Lin	a4d5ed3b54	power: supply: surface-charger: Make symbol 'surface_ac_pm_ops' static ... The sparse tool complains as follows: drivers/power/supply/surface_charger.c:229:1: warning: symbol 'surface_ac_pm_ops' was not declared. Should it be static? This symbol is not used outside of surface_charger.c, so this commit marks it static. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Qiheng Lin <linqiheng@huawei.com> Acked-by: Maximilian Luz <luzmaximilian@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>	2021-04-12 21:20:25 +02:00
Maximilian Luz	e61ffb3445	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>	2021-04-08 14:30:35 +02:00