2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-24 21:24:00 +08:00
linux-next/drivers/platform
Hans de Goede 358d6a2c3e toshiba_acpi: Do not register vendor backlight when acpi_video bl is available
commit a39f46df33 ("toshiba_acpi: Fix regression caused by backlight extra
check code") causes the backlight to no longer work on the Toshiba Z30,
reverting that commit fixes this but restores the original issue fixed
by that commit.

Looking at the toshiba_acpi backlight code for a fix for this I noticed that
the toshiba code is the only code under platform/x86 which unconditionally
registers a vendor acpi backlight interface, without checking for acpi_video
backlight support first.

This commit adds the necessary checks bringing toshiba_acpi in line with the
other drivers, and fixing the Z30 regression without needing to revert the
commit causing it.

Chances are that there will be some Toshiba models which have a non working
acpi-video implementation while the toshiba vendor backlight interface does
work, this commit adds an empty dmi_id table where such systems can be added,
this is identical to how other drivers handle such systems.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1206036
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=86521
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-and-tested-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-04-24 11:08:53 -07:00
..
chrome platform: chrome: drop owner assignment from platform_drivers 2014-10-20 16:21:26 +02:00
goldfish goldfish: pipe: fix warnings for 32bit builds 2014-05-16 11:32:51 -07:00
olpc drivers/platform/olpc/olpc-ec.c: initialise earlier 2013-08-23 09:51:22 -07:00
x86 toshiba_acpi: Do not register vendor backlight when acpi_video bl is available 2015-04-24 11:08:53 -07:00
Kconfig platform: add chrome platform directory 2013-11-20 18:51:03 -05:00
Makefile platform: add chrome platform directory 2013-11-20 18:51:03 -05:00