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1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Microsoft Surface Platform-Specific Drivers
4#
5
6menuconfig SURFACE_PLATFORMS
7 bool "Microsoft Surface Platform-Specific Device Drivers"
8 depends on ACPI
9 default y
10 help
11 Say Y here to get to see options for platform-specific device drivers
12 for Microsoft Surface devices. This option alone does not add any
13 kernel code.
14
15 If you say N, all options in this submenu will be skipped and disabled.
16
17if SURFACE_PLATFORMS
18
19config SURFACE3_WMI
20 tristate "Surface 3 WMI Driver"
21 depends on ACPI_WMI
22 depends on DMI
23 depends on INPUT
24 depends on SPI
25 help
26 Say Y here if you have a Surface 3.
27
28 To compile this driver as a module, choose M here: the module will
29 be called surface3-wmi.
30
31config SURFACE_3_BUTTON
32 tristate "Power/home/volume buttons driver for Microsoft Surface 3 tablet"
33 depends on KEYBOARD_GPIO && I2C
34 help
35 This driver handles the power/home/volume buttons on the Microsoft Surface 3 tablet.
36
37config SURFACE_3_POWER_OPREGION
38 tristate "Surface 3 battery platform operation region support"
39 depends on I2C
40 help
41 This driver provides support for ACPI operation
42 region of the Surface 3 battery platform driver.
43
44config SURFACE_ACPI_NOTIFY
45 tristate "Surface ACPI Notify Driver"
46 depends on SURFACE_AGGREGATOR
47 help
48 Surface ACPI Notify (SAN) driver for Microsoft Surface devices.
49
50 This driver provides support for the ACPI interface (called SAN) of
51 the Surface System Aggregator Module (SSAM) EC. This interface is used
52 on 5th- and 6th-generation Microsoft Surface devices (including
53 Surface Pro 5 and 6, Surface Book 2, Surface Laptops 1 and 2, and in
54 reduced functionality on the Surface Laptop 3) to execute SSAM
55 requests directly from ACPI code, as well as receive SSAM events and
56 turn them into ACPI notifications. It essentially acts as a
57 translation layer between the SSAM controller and ACPI.
58
59 Specifically, this driver may be needed for battery status reporting,
60 thermal sensor access, and real-time clock information, depending on
61 the Surface device in question.
62
63config SURFACE_AGGREGATOR_CDEV
64 tristate "Surface System Aggregator Module User-Space Interface"
65 depends on SURFACE_AGGREGATOR
66 help
67 Provides a misc-device interface to the Surface System Aggregator
68 Module (SSAM) controller.
69
70 This option provides a module (called surface_aggregator_cdev), that,
71 when loaded, will add a client device (and its respective driver) to
72 the SSAM controller. Said client device manages a misc-device
73 interface (/dev/surface/aggregator), which can be used by user-space
74 tools to directly communicate with the SSAM EC by sending requests and
75 receiving the corresponding responses.
76
77 The provided interface is intended for debugging and development only,
78 and should not be used otherwise.
79
80config SURFACE_GPE
81 tristate "Surface GPE/Lid Support Driver"
82 depends on DMI
83 help
84 This driver marks the GPEs related to the ACPI lid device found on
85 Microsoft Surface devices as wakeup sources and prepares them
86 accordingly. It is required on those devices to allow wake-ups from
87 suspend by opening the lid.
88
89config SURFACE_HOTPLUG
90 tristate "Surface Hot-Plug Driver"
91 depends on GPIOLIB
92 help
93 Driver for out-of-band hot-plug event signaling on Microsoft Surface
94 devices with hot-pluggable PCIe cards.
95
96 This driver is used on Surface Book (2 and 3) devices with a
97 hot-pluggable discrete GPU (dGPU). When not in use, the dGPU on those
98 devices can enter D3cold, which prevents in-band (standard) PCIe
99 hot-plug signaling. Thus, without this driver, detaching the base
100 containing the dGPU will not correctly update the state of the
101 corresponding PCIe device if it is in D3cold. This driver adds support
102 for out-of-band hot-plug notifications, ensuring that the device state
103 is properly updated even when the device in question is in D3cold.
104
105 Select M or Y here, if you want to (fully) support hot-plugging of
106 dGPU devices on the Surface Book 2 and/or 3 during D3cold.
107
108config SURFACE_PRO3_BUTTON
109 tristate "Power/home/volume buttons driver for Microsoft Surface Pro 3/4 tablet"
110 depends on INPUT
111 help
112 This driver handles the power/home/volume buttons on the Microsoft Surface Pro 3/4 tablet.
113
114source "drivers/platform/surface/aggregator/Kconfig"
115
116endif # SURFACE_PLATFORMS