diff options
Diffstat (limited to 'drivers/platform/surface/Kconfig')
| -rw-r--r-- | drivers/platform/surface/Kconfig | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/platform/surface/Kconfig b/drivers/platform/surface/Kconfig index 2c941cdac9ee..0847b2dc97bf 100644 --- a/drivers/platform/surface/Kconfig +++ b/drivers/platform/surface/Kconfig @@ -41,6 +41,42 @@ config SURFACE_3_POWER_OPREGION This driver provides support for ACPI operation region of the Surface 3 battery platform driver. +config SURFACE_ACPI_NOTIFY + tristate "Surface ACPI Notify Driver" + depends on SURFACE_AGGREGATOR + help + Surface ACPI Notify (SAN) driver for Microsoft Surface devices. + + This driver provides support for the ACPI interface (called SAN) of + the Surface System Aggregator Module (SSAM) EC. This interface is used + on 5th- and 6th-generation Microsoft Surface devices (including + Surface Pro 5 and 6, Surface Book 2, Surface Laptops 1 and 2, and in + reduced functionality on the Surface Laptop 3) to execute SSAM + requests directly from ACPI code, as well as receive SSAM events and + turn them into ACPI notifications. It essentially acts as a + translation layer between the SSAM controller and ACPI. + + Specifically, this driver may be needed for battery status reporting, + thermal sensor access, and real-time clock information, depending on + the Surface device in question. + +config SURFACE_AGGREGATOR_CDEV + tristate "Surface System Aggregator Module User-Space Interface" + depends on SURFACE_AGGREGATOR + help + Provides a misc-device interface to the Surface System Aggregator + Module (SSAM) controller. + + This option provides a module (called surface_aggregator_cdev), that, + when loaded, will add a client device (and its respective driver) to + the SSAM controller. Said client device manages a misc-device + interface (/dev/surface/aggregator), which can be used by user-space + tools to directly communicate with the SSAM EC by sending requests and + receiving the corresponding responses. + + The provided interface is intended for debugging and development only, + and should not be used otherwise. + config SURFACE_GPE tristate "Surface GPE/Lid Support Driver" depends on DMI @@ -50,10 +86,31 @@ config SURFACE_GPE accordingly. It is required on those devices to allow wake-ups from suspend by opening the lid. +config SURFACE_HOTPLUG + tristate "Surface Hot-Plug Driver" + depends on GPIOLIB + help + Driver for out-of-band hot-plug event signaling on Microsoft Surface + devices with hot-pluggable PCIe cards. + + This driver is used on Surface Book (2 and 3) devices with a + hot-pluggable discrete GPU (dGPU). When not in use, the dGPU on those + devices can enter D3cold, which prevents in-band (standard) PCIe + hot-plug signaling. Thus, without this driver, detaching the base + containing the dGPU will not correctly update the state of the + corresponding PCIe device if it is in D3cold. This driver adds support + for out-of-band hot-plug notifications, ensuring that the device state + is properly updated even when the device in question is in D3cold. + + Select M or Y here, if you want to (fully) support hot-plugging of + dGPU devices on the Surface Book 2 and/or 3 during D3cold. + config SURFACE_PRO3_BUTTON tristate "Power/home/volume buttons driver for Microsoft Surface Pro 3/4 tablet" depends on INPUT help This driver handles the power/home/volume buttons on the Microsoft Surface Pro 3/4 tablet. +source "drivers/platform/surface/aggregator/Kconfig" + endif # SURFACE_PLATFORMS |