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| author | Hans de Goede <hdegoede@redhat.com> | 2017-07-09 22:05:12 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-07-12 14:26:08 +0300 |
| commit | 3b6a70be5ac81673af1ca8b4dae84743cb9fcc87 (patch) | |
| tree | bf72bfd7f3793c116923bfd199723cfa5c300799 /block/blk-ioc.c | |
| parent | 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c (diff) | |
| download | linux-3b6a70be5ac81673af1ca8b4dae84743cb9fcc87.tar.xz | |
ACPI / x86: Allow matching always_present_id array entries by DMI
On some x86 systems the DSDT hides APCI devices to work around Windows
driver bugs. On one such system the device is even hidden until a certain
time after _SB.PCI0.GFX0.LCD.LCD1._ON gets called has passed *and*
_STA has been called at least 3 times since. TL;DR: it is a mess.
Until now the always_present_id matching was used to force status
for a whole class of devices, e.g. always enable PWM1 on CHerry Trail
devices.
This commit extends the always_present_id matching code to optionally
also check for a DMI match so that we can also add system specific
quirks to the always_present_id array.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'block/blk-ioc.c')
0 files changed, 0 insertions, 0 deletions