The dcn30_get_gamcor_current() function is responsible for determining
the current gamma correction mode used by the display controller.
However, the 'mode' variable, which stores the gamma correction mode,
was not initialized before its first usage, leading to an uninitialized
symbol error.
Thus
Rather than inventing a wrapper to acpi_video_get_edid() use the
one provided by drm. This fixes two problems:
1. A memory leak that the memory provided by the ACPI call was
never freed.
2. Validation of the BIOS provided blob.
Convert the usage in nouveau_connector_detect_lvds() to use
struct
Some manufacturers have intentionally put an EDID that differs from
the EDID on the internal panel on laptops. Drivers that prefer to
fetch this EDID can set a bit on the drm_connector to indicate that
the DRM EDID helpers should try to fetch it and it is preferred if
it's present.
Signed-off-by:
This series adds the ability to fetch the EDID through ACPI for laptop
panels. Drivers need to opt into the behavior.
In this series it's enabled by default for all eDP or LVDS panels with
AMDGPU and certain panels for Nouveau.
Mario Limonciello (3):
drm: Add support to get EDID from ACPI
drm
Some manufacturers have intentionally put an EDID that differs from
the EDID on the internal panel on laptops.
Attempt to fetch this EDID if it exists and prefer it over the EDID
that is provided by the panel. If a user prefers to use the EDID from
the panel, offer a module parameter that would di
