2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 13:43:55 +08:00
linux-next/drivers/platform
Yurii Pavlovskyi 98e865a522 platform/x86: asus-wmi: Increase input buffer size of WMI methods
The asus-nb-wmi driver is matched by WMI alias but fails to load on TUF
Gaming series laptops producing multiple ACPI errors in the kernel log.

The input buffer for WMI method invocation size is 2 dwords, whereas
3 are expected by this model.

FX505GM:
..
Method (WMNB, 3, Serialized)
{
    P8XH (Zero, 0x11)
    CreateDWordField (Arg2, Zero, IIA0)
    CreateDWordField (Arg2, 0x04, IIA1)
    CreateDWordField (Arg2, 0x08, IIA2)
    Local0 = (Arg1 & 0xFFFFFFFF)
    ...

Compare with older K54C:
...
Method (WMNB, 3, NotSerialized)
{
    CreateDWordField (Arg2, 0x00, IIA0)
    CreateDWordField (Arg2, 0x04, IIA1)
    Local0 = (Arg1 & 0xFFFFFFFF)
    ...

Increase buffer size to 3 dwords. No negative consequences of this change
are expected, as the input buffer size is not verified. The original
function is replaced by a wrapper for a new method passing value 0 for the
last parameter. The new function will be used to control RGB keyboard
backlight.

Signed-off-by: Yurii Pavlovskyi <yurii.pavlovskyi@gmail.com>
Reviewed-by: Daniel Drake <drake@endlessm.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-06-17 15:22:47 +03:00
..
chrome - Core Frameworks 2019-05-14 10:39:08 -07:00
goldfish mm/gup: change GUP fast to use flags rather than a write 'bool' 2019-05-14 09:47:46 -07:00
mellanox platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow 2019-06-12 11:54:17 +03:00
mips MIPS: Loongson: Add Loongson-3A R2.1 basic support 2018-11-19 15:20:31 -08:00
olpc Platform: OLPC: Add a config menu category for XO 1.75 2019-06-12 11:53:20 +03:00
x86 platform/x86: asus-wmi: Increase input buffer size of WMI methods 2019-06-17 15:22:47 +03:00
Kconfig Platform: OLPC: Add XO-1.75 EC driver 2019-05-20 17:27:08 +03:00
Makefile Platform: OLPC: Add XO-1.75 EC driver 2019-05-20 17:27:08 +03:00