diff options
| author | Hans de Goede <[email protected]> | 2019-10-24 23:57:23 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2019-10-25 11:47:47 +0200 |
| commit | 6025e2fae3dde3c3d789d08f8ceacbdd9f90d471 (patch) | |
| tree | e2fbe31cc2f8ea86d3c634b35ace32259eb5ea4a /lib | |
| parent | b3b3519c04bdff91651d0a6deb79dbd4516b5d7b (diff) | |
ACPI: LPSS: Add dmi quirk for skipping _DEP check for some device-links
The iGPU / GFX0 device's _PS0 method on the ASUS T200TA depends on the
I2C1 controller (which is connected to the embedded controller). But unlike
in the T100TA/T100CHI this dependency is not listed in the _DEP of the GFX0
device.
This results in the dev_WARN_ONCE(..., "Transfer while suspended\n") call
in i2c-designware-master.c triggering and the AML code not working as it
should.
This commit fixes this by adding a dmi based quirk mechanism for devices
which miss a _DEP, and adding a quirk for the LNXVIDEO depending on the
I2C1 device on the Asus T200TA.
Fixes: 2d71ee0ce72f ("ACPI / LPSS: Add a device link from the GPU to the BYT I2C5 controller")
Tested-by: Pierre-Louis Bossart <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Cc: 4.20+ <[email protected]> # 4.20+
Signed-off-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions