[RESEND PATCH 0/7] ACPI video: cleanups and fixes for the recent buggy _BQC/_BCL/_BCM BIOSes

[RESEND PATCH 0/7] ACPI video: cleanups and fixes for the recent buggy _BQC/_BCL/_BCM BIOSes

[Zhang Rui]

Hi, all,

here is the patch set I made recently, including some cleanups and fixes
for the Thinkpad/Asus laptops with buggy _BQC/_BCL/_BCM implementation.

The first two patches checks if ACPI video driver fails to set/get the
current brightness level, which is not done before.

patch 3/4/5/6 are used to fix four different problems.

1. the brightness levels when machine is on AC/Battery are not exported
   by _BCL.
2. The supported brightness levels are reversed in the _BCL method.
3. Index values are used in _BQC/_BCL/_BCM method.
4. _BCQ method is implemented instead of _BQC

patch 7 add a warning message when _BQC is not implemented.

Any comments are welcome.

thanks,
rui
   

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