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| author | Jani Nikula <jani.nikula@intel.com> | 2017-09-12 11:19:26 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2017-09-19 17:49:25 +0300 |
| commit | 53fd40a90f3c0bdad86ec266ee5df833f54ace39 (patch) | |
| tree | cf35231684c4ffbb0f7c7b79f33d6d0d1a6842a6 /drivers/gpu/drm/Kconfig | |
| parent | c673fe7f0cd525629db9a87a77610fca137951e0 (diff) | |
| download | linux-53fd40a90f3c0bdad86ec266ee5df833f54ace39.tar.xz | |
drm: handle override and firmware EDID at drm_do_get_edid() level
Handle debugfs override edid and firmware edid at the low level to
transparently and completely replace the real edid. Previously, we
practically only used the modes from the override EDID, and none of the
other data, such as audio parameters.
This change also prevents actual EDID reads when the EDID is to be
overridden, but retains the DDC probe. This is useful if the reason for
preferring override EDID are problems with reading the data, or
corruption of the data.
Move firmware EDID loading from helper to core, as the functionality
moves to lower level as well. This will result in a change of module
parameter from drm_kms_helper.edid_firmware to drm.edid_firmware, which
arguably makes more sense anyway.
Some future work remains related to override and firmware EDID
validation. Like before, no validation is done for override EDID. The
firmware EDID is validated separately in the loader. Some unification
and deduplication would be in order, to validate all of them at the
drm_do_get_edid() level, like "real" EDIDs.
v2: move firmware loading to core
v3: rebase, commit message refresh
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1e8a710bcac46e5136c1a7b430074893c81f364a.1505203831.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index c5e1a8409285..c9f09fc298bb 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -110,7 +110,7 @@ config DRM_FBDEV_OVERALLOC config DRM_LOAD_EDID_FIRMWARE bool "Allow to specify an EDID data set instead of probing for it" - depends on DRM_KMS_HELPER + depends on DRM help Say Y here, if you want to use EDID data to be loaded from the /lib/firmware directory or one of the provided built-in |