Kconfig (f8bade6c9a6213c2c5ba6e5bf32415ecab6e41e5) Kconfig (1d609992832e900378b305f9f8dcf0ce8473049e)
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

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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
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

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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_AGGREGATOR_REGISTRY
81 tristate "Surface System Aggregator Module Device Registry"
82 depends on SURFACE_AGGREGATOR
83 depends on SURFACE_AGGREGATOR_BUS
84 help
85 Device-registry and device-hubs for Surface System Aggregator Module
86 (SSAM) devices.
87
88 Provides a module and driver which act as a device-registry for SSAM
89 client devices that cannot be detected automatically, e.g. via ACPI.
90 Such devices are instead provided via this registry and attached via
91 device hubs, also provided in this module.
92
93 Devices provided via this registry are:
94 - Platform profile (performance-/cooling-mode) device (5th- and later
95 generations).
96 - Battery/AC devices (7th-generation).
97 - HID input devices (7th-generation).
98
99 Select M (recommended) or Y here if you want support for the above
100 mentioned devices on the corresponding Surface models. Without this
101 module, the respective devices will not be instantiated and thus any
102 functionality provided by them will be missing, even when drivers for
103 these devices are present. In other words, this module only provides
104 the respective client devices. Drivers for these devices still need to
105 be selected via the other options.
106
107config SURFACE_DTX
108 tristate "Surface DTX (Detachment System) Driver"
109 depends on SURFACE_AGGREGATOR
110 depends on INPUT
111 help
112 Driver for the Surface Book clipboard detachment system (DTX).
113
114 On the Surface Book series devices, the display part containing the
115 CPU (called the clipboard) can be detached from the base (containing a
116 battery, the keyboard, and, optionally, a discrete GPU) by (if
117 necessary) unlocking and opening the latch connecting both parts.
118
119 This driver provides a user-space interface that can influence the
120 behavior of this process, which includes the option to abort it in
121 case the base is still in use or speed it up in case it is not.
122
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.

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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
123config SURFACE_GPE
124 tristate "Surface GPE/Lid Support Driver"
125 depends on DMI
126 help
127 This driver marks the GPEs related to the ACPI lid device found on
128 Microsoft Surface devices as wakeup sources and prepares them
129 accordingly. It is required on those devices to allow wake-ups from
130 suspend by opening the lid.

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143 containing the dGPU will not correctly update the state of the
144 corresponding PCIe device if it is in D3cold. This driver adds support
145 for out-of-band hot-plug notifications, ensuring that the device state
146 is properly updated even when the device in question is in D3cold.
147
148 Select M or Y here, if you want to (fully) support hot-plugging of
149 dGPU devices on the Surface Book 2 and/or 3 during D3cold.
150
151config SURFACE_PLATFORM_PROFILE
152 tristate "Surface Platform Profile Driver"
153 depends on SURFACE_AGGREGATOR_REGISTRY
154 select ACPI_PLATFORM_PROFILE
155 help
156 Provides support for the ACPI platform profile on 5th- and later
157 generation Microsoft Surface devices.
158
159 More specifically, this driver provides ACPI platform profile support
160 on Microsoft Surface devices with a Surface System Aggregator Module
161 (SSAM) connected via the Surface Serial Hub (SSH / SAM-over-SSH). In
162 other words, this driver provides platform profile support on the
163 Surface Pro 5, Surface Book 2, Surface Laptop, Surface Laptop Go and
164 later. On those devices, the platform profile can significantly
165 influence cooling behavior, e.g. setting it to 'quiet' (default) or
166 'low-power' can significantly limit performance of the discrete GPU on
167 Surface Books, while in turn leading to lower power consumption and/or
168 less fan noise.
169
170 Select M or Y here, if you want to include ACPI platform profile
171 support on the above mentioned devices.
172
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
173config SURFACE_PRO3_BUTTON
174 tristate "Power/home/volume buttons driver for Microsoft Surface Pro 3/4 tablet"
175 depends on INPUT
176 help
177 This driver handles the power/home/volume buttons on the Microsoft Surface Pro 3/4 tablet.
178
179source "drivers/platform/surface/aggregator/Kconfig"
180
181endif # SURFACE_PLATFORMS