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drm/radeon: add a connector property for audio

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This provides a connector property to enable/disable hdmi
audio on the fly.  The default is disabled, but you can select
auto (let the driver detect an audio capable monitor and enable it)
or enabled (force audio enabled).  This also enables audio by
default so you no longer need a module parameter to enable audio.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2013-09-03 14:58:44 -04:00
parent 7cc0a3d85b
commit 8666c076df
5 changed files with 64 additions and 7 deletions
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12
drivers/gpu/drm/radeon/radeon_display.c
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@@ -1172,6 +1172,12 @@ static struct drm_prop_enum_list radeon_underscan_enum_list[] =
{ UNDERSCAN_AUTO, "auto" },
};
static struct drm_prop_enum_list radeon_audio_enum_list[] =
{ { RADEON_AUDIO_DISABLE, "off" },
{ RADEON_AUDIO_ENABLE, "on" },
{ RADEON_AUDIO_AUTO, "auto" },
};
static int radeon_modeset_create_props(struct radeon_device *rdev)
{
int sz;
@@ -1222,6 +1228,12 @@ static int radeon_modeset_create_props(struct radeon_device *rdev)
if (!rdev->mode_info.underscan_vborder_property)
return -ENOMEM;
sz = ARRAY_SIZE(radeon_audio_enum_list);
rdev->mode_info.audio_property =
drm_property_create_enum(rdev->ddev, 0,
"audio",
radeon_audio_enum_list, sz);
return 0;
}