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(parent: 7d64751) | patch
drm/radeon: Fix backlight control on iMac 12,1
authorNicholas Bishop <nicholasbishop@google.com>
Fri, 11 Feb 2022 19:57:39 +0000 (14:57 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 23 Feb 2022 10:58:38 +0000 (11:58 +0100)
commit09be4abbfaea64431e8d3b8bb73af73a9ea42a47
tree7b3c1d3abb88758c6c3ec1b5b923f741acda7e4ctree | snapshot
parent7d6475179b85a83186ccce59cdc359d4f07d0bcbcommit | diff
drm/radeon: Fix backlight control on iMac 12,1

commit 364438fd629f7611a84c8e6d7de91659300f1502 upstream.

The iMac 12,1 does not use the gmux driver for backlight, so the radeon
backlight device is needed to set the brightness.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1838
Signed-off-by: Nicholas Bishop <nicholasbishop@google.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/radeon/atombios_encoders.c diff | blob | history
wrapfs-5.3.y