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authorHans de Goede <hdegoede@redhat.com>2015-04-21 12:01:32 +0200
committerDarren Hart <dvhart@linux.intel.com>2015-04-24 11:08:53 -0700
commit358d6a2c3ecae2b22c7d7e61f9d5672557446dfb (patch)
treef1b12dbaf7ce4b9fef4ed702650187a336b10b47 /MAINTAINERS
parentcdbff611940882b36d6964ced177bc167012f5c0 (diff)
toshiba_acpi: Do not register vendor backlight when acpi_video bl is available
commit a39f46df33c6 ("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>
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