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| author | Blaž Hrastnik <blaz@mxxn.io> | 2020-03-21 16:22:22 +0100 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-03-26 13:09:09 +0100 |
| commit | b1f81b496b0d14382a9cf160cc4dbdefb233f936 (patch) | |
| tree | e4995bbb9401bd2e8f38079124ffc6cdc13ef72a /drivers/platform/x86/Makefile | |
| parent | platform/x86: intel_pmc_core: Make pmc_core_substate_res_show() generic (diff) | |
| download | linux-b1f81b496b0d14382a9cf160cc4dbdefb233f936.tar.xz linux-b1f81b496b0d14382a9cf160cc4dbdefb233f936.zip | |
platform/x86: surface3_power: MSHW0011 rev-eng implementation
Patch was rebased on top of for-next. Thanks for your patience!
Blaž
I'm resubmitting this patch with review feedback addressed:
https://patchwork.kernel.org/patch/10584079/
The patch was previously not resubmitted because it required a change
that was reverted in the ACPICA. That has since been corrected:
https://github.com/acpica/acpica/commit/9159c09a2a5897a43f78c95cdffc160d399722c3
We've been using this patch for a while and user reports confirm that it
works:
https://github.com/linux-surface/linux-surface
Previous description follows.
>8------------------------------------------------------8<
The MSHW0011 device is a chip that replaces the battery firmware
by using ACPI operation regions on the Surface 3.
It is unclear whether or not the chip will be reused somewhere else
(under Windows, the chip is called "Surface Platform Power Driver"
and the driver is provided by Microsoft).
The values have been obtained by reverse engineering, and are subject to
errors. Looks like it works on overall pretty well.
I couldn't manage to get the IRQ correctly triggered, so I am using a
good old polling thread to check for changes. This is something
to be fixed in a later version.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=106231
Signed-off-by: Blaž Hrastnik <blaz@mxxn.io>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Stephen Just <stephenjust@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/Makefile')
| -rw-r--r-- | drivers/platform/x86/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index 2ecd08783a73..53408d965874 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -82,6 +82,7 @@ obj-$(CONFIG_INTEL_VBTN) += intel-vbtn.o # Microsoft obj-$(CONFIG_SURFACE3_WMI) += surface3-wmi.o obj-$(CONFIG_SURFACE_3_BUTTON) += surface3_button.o +obj-$(CONFIG_SURFACE_3_POWER_OPREGION) += surface3_power.o obj-$(CONFIG_SURFACE_PRO3_BUTTON) += surfacepro3_button.o # MSI |