✓ CI.checkpatch: success for drivers/i915/intel_bios: Fix parsing backlight BDB data
Patchwork
patchwork at emeril.freedesktop.org
Tue Feb 20 21:54:24 UTC 2024
== Series Details ==
Series: drivers/i915/intel_bios: Fix parsing backlight BDB data
URL : https://patchwork.freedesktop.org/series/130153/
State : success
== Summary ==
+ KERNEL=/kernel
+ git clone https://gitlab.freedesktop.org/drm/maintainer-tools mt
Cloning into 'mt'...
warning: redirecting to https://gitlab.freedesktop.org/drm/maintainer-tools.git/
+ git -C mt rev-list -n1 origin/master
35591fb8b4d5305b37ce31483f85ac0956eaa536
+ cd /kernel
+ git config --global --add safe.directory /kernel
+ git log -n1
commit 0e2d10f2e1f56f80dbe5c1245758d8e0629ed68d
Author: Karthikeyan Ramasubramanian <kramasub at chromium.org>
Date: Tue Feb 20 14:12:57 2024 -0700
drivers/i915/intel_bios: Fix parsing backlight BDB data
Starting BDB version 239, hdr_dpcd_refresh_timeout is introduced to
backlight BDB data. Commit 700034566d68 ("drm/i915/bios: Define more BDB
contents") updated the backlight BDB data accordingly. This broke the
parsing of backlight BDB data in VBT for versions 236 - 238 (both
inclusive) and hence the backlight controls are not responding on units
with the concerned BDB version.
backlight_control information has been present in backlight BDB data
from at least BDB version 191 onwards, if not before. Hence this patch
extracts the backlight_control information if the block size of
backlight BDB is >= version 191 backlight BDB block size.
Tested on Chromebooks using Jasperlake SoC (reports bdb->version = 236).
Tested on Chromebooks using Raptorlake SoC (reports bdb->version = 251).
Fixes: 700034566d68 ("drm/i915/bios: Define more BDB contents")
Cc: stable at vger.kernel.org
Cc: Jani Nikula <jani.nikula at intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Karthikeyan Ramasubramanian <kramasub at chromium.org>
+ /mt/dim checkpatch 52e6f4fe13d7b1f498009a367c6ce19466f167cc drm-intel
0e2d10f2e1f5 drivers/i915/intel_bios: Fix parsing backlight BDB data
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