diff options
| author | ScottPeterson <speterson@nvidia.com> | 2011-07-20 13:29:10 -0700 |
|---|---|---|
| committer | Niket Sirsi <nsirsi@nvidia.com> | 2011-07-21 18:09:33 -0700 |
| commit | 13bbb59bfe687944923bceb1b2f60020546ce082 (patch) | |
| tree | 79988c581dbe2ce6dc05aaa4c0fd01e16d005412 | |
| parent | 0cc838ae44178627dfae295487c335055d8dd244 (diff) | |
video: tegra: dc: Add basic audio EDID
Add support so that when the EDID is read from
an HDMI display we set the spk_alloc flag to
Left+Right, even if the optional SPeaker Allocation
Block is not present. This provides a default audio
configuration.
Bug 849686
Change-Id: I549bfb356ba594f7b38baec0f4e5f18ac91602c0
Reviewed-on: http://git-master/r/42173
Reviewed-by: Niket Sirsi <nsirsi@nvidia.com>
Tested-by: Niket Sirsi <nsirsi@nvidia.com>
| -rw-r--r-- | drivers/video/tegra/dc/edid.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/edid.c b/drivers/video/tegra/dc/edid.c index d3e5d0898162..559d4a1d2b03 100644 --- a/drivers/video/tegra/dc/edid.c +++ b/drivers/video/tegra/dc/edid.c @@ -178,6 +178,14 @@ int tegra_edid_parse_ext_block(u8 *raw, int idx, struct tegra_edid *edid) if (*ptr <= 3) edid->eld.eld_ver = 0x02; edid->eld.cea_edid_ver = ptr[1]; + + /* check for basic audio support in CEA 861 block */ + if(raw[3] & (1<<6)) { + /* For basic audio, set spk_alloc to Left+Right. + * If there is a Speaker Alloc block this will + * get over written with that value */ + edid->eld.spk_alloc = 1; + } } ptr = &raw[4]; |