Karthikeyan Ramasubramanian 43b26bdd2e drm/i915/bios: Fix parsing backlight BDB data ... Starting BDB version 239, hdr_dpcd_refresh_timeout is introduced to backlight BDB data. Commit 700034566d ("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 for BDB version 191 or newer. Tested on Chromebooks using Jasperlake SoC (reports bdb->version = 236). Tested on Chromebooks using Raptorlake SoC (reports bdb->version = 251). v2: removed checking the block size of the backlight BDB data [vsyrjala: this is completely safe thanks to commit e163cfb4c9 ("drm/i915/bios: Make copies of VBT data blocks")] Fixes: 700034566d ("drm/i915/bios: Define more BDB contents") Cc: stable@vger.kernel.org Cc: Jani Nikula <jani.nikula@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Karthikeyan Ramasubramanian <kramasub@chromium.org> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240221180622.v2.1.I0690aa3e96a83a43b3fc33f50395d334b2981826@changeid Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (cherry picked from commit c286f6a973) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>		2024-05-07 09:42:27 -04:00
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drm	drm/i915/bios: Fix parsing backlight BDB data	2024-05-07 09:42:27 -04:00
host1x	gpu: host1x: Do not setup DMA for virtual devices	2024-04-08 16:52:58 +02:00
ipu-v3	drm for 6.6-rc1	2023-08-30 13:34:34 -07:00
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