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Author SHA1 Message Date
Gustavo A. R. Silva
ec4ac36939 drm/edid: Replace zero-length array with flexible-array 
There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
 2020-06-15 23:08:31 -05:00
Ville Syrjälä
bf5e4a863a drm/edid: Swap some operands in for_each_displayid_db() 
A+B on the previous line, B+A on the next line. Brain hurts.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200313162054.16009-3-ville.syrjala@linux.intel.com
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
 2020-03-18 17:52:36 +02:00
Andres Rodriguez
e28ad544f4 drm/edid: parse CEA blocks embedded in DisplayID 
DisplayID blocks allow embedding of CEA blocks. The payloads are
identical to traditional top level CEA extension blocks, but the header
is slightly different.

This change allows the CEA parser to find a CEA block inside a DisplayID
block. Additionally, it adds support for parsing the embedded CTA
header. No further changes are necessary due to payload parity.

This change fixes audio support for the Valve Index HMD.

Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.15
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190619180901.17901-1-andresx7@gmail.com
 2019-06-25 14:32:26 +10:00
Dave Airlie
a39ed680bd drm/edid: add displayid detailed 1 timings to the modelist. (v1.1) 
The tiled 5K Dell monitor appears to be hiding it's tiled mode
inside the displayid timings block, this patch parses this
blocks and adds the modes to the modelist.

v1.1: add missing __packed.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95207
Signed-off-by: Dave Airlie <airlied@redhat.com>
 2016-05-23 11:35:31 +10:00
Dave Airlie
b49b55bd4f drm/displayid: add displayid defines and edid extension (v2) 
These are just taken from the DisplayID v1.3 spec, and the
DDC spec.

v2: use __packed (Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>
 2014-12-09 09:56:46 +10:00