| commit | 1282b007be8c4ee2c6193a71f66b66ef989be4b3 | [log] [tgz] |
|---|---|---|
| author | Tony Huang <tony-huang@quanta.corp-partner.google.com> | Mon May 03 09:35:56 2021 +0800 |
| committer | Furquan Shaikh <furquan@google.com> | Wed May 05 01:16:29 2021 +0000 |
| tree | 92114cc9b2c97e32ba2d46ac808c9d09fa9fd713 | |
| parent | d6612a420cc351afc5cf8c28fcb435a27fbb7faf [diff] |
drivers/i2c/generic: Set S0W to D3hot for wake device If device is supported as a wake source, _S0W should be set to D3hot. This ensures that the device is put into D3hot by the OSPM. Power resource(PRIC) for the device is listed in both _PR0 and _PR3. Thus, it ensures that the OSPM does not turn off power resource when device is put into D0 and D3hot. Hence, it is capable of waking the system from D3hot state. However, if it is put into D3cold, then the power resource is turned off by the OSPM. The devices we are currently looking at for touchscreen/touchpad do not really support auxiliary power and so do not support wake from D3cold. BUG=b:186070097 TEST=build and check device wake state _S0W set to 3 in ssdt table. Change-Id: I34e4b2350875530d3337be700276bcc4fb1f810a Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/52847 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload.
With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required.
coreboot was formerly known as LinuxBIOS.
After the basic initialization of the hardware has been performed, any desired "payload" can be started by coreboot.
See https://www.coreboot.org/Payloads for a list of supported payloads.
coreboot supports a wide range of chipsets, devices, and mainboards.
For details please consult:
ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).Optional:
make menuconfig and make nconfig)Please consult https://www.coreboot.org/Build_HOWTO for details.
If you want to test coreboot without any risks before you really decide to use it on your hardware, you can use the QEMU system emulator to run coreboot virtually in QEMU.
Please see https://www.coreboot.org/QEMU for details.
Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website:
You can contact us directly on the coreboot mailing list:
https://www.coreboot.org/Mailinglist
The copyright on coreboot is owned by quite a large number of individual developers and companies. Please check the individual source files for details.
coreboot is licensed under the terms of the GNU General Public License (GPL). Some files are licensed under the "GPL (version 2, or any later version)", and some files are licensed under the "GPL, version 2". For some parts, which were derived from other projects, other (GPL-compatible) licenses may apply. Please check the individual source files for details.
This makes the resulting coreboot images licensed under the GPL, version 2.