diff options
| author | Adam Jackson <ajax@redhat.com> | 2012-05-14 16:05:48 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-05-22 10:19:03 +0100 |
| commit | 40c5d876478abb5aa8e5fb1741205dd35fcffe42 (patch) | |
| tree | 8b536e5ef1114aa20311111599d0f8a56b08c685 /drivers/gpu/drm/radeon/atombios_dp.c | |
| parent | 0d198328538276c4459ef5de081e68ae60e6c4c2 (diff) | |
drm/radeon/dp: Probe branch/sink OUIs
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_dp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_dp.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index cadbb107c80..5131b3b0f7d 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -530,6 +530,23 @@ u8 radeon_dp_getsinktype(struct radeon_connector *radeon_connector) dig_connector->dp_i2c_bus->rec.i2c_id, 0); } +static void radeon_dp_probe_oui(struct radeon_connector *radeon_connector) +{ + struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; + u8 buf[3]; + + if (!(dig_connector->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT)) + return; + + if (radeon_dp_aux_native_read(radeon_connector, DP_SINK_OUI, buf, 3, 0)) + DRM_DEBUG_KMS("Sink OUI: %02hx%02hx%02hx\n", + buf[0], buf[1], buf[2]); + + if (radeon_dp_aux_native_read(radeon_connector, DP_BRANCH_OUI, buf, 3, 0)) + DRM_DEBUG_KMS("Branch OUI: %02hx%02hx%02hx\n", + buf[0], buf[1], buf[2]); +} + bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector) { struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; @@ -543,6 +560,9 @@ bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector) for (i = 0; i < 8; i++) DRM_DEBUG_KMS("%02x ", msg[i]); DRM_DEBUG_KMS("\n"); + + radeon_dp_probe_oui(radeon_connector); + return true; } dig_connector->dpcd[0] = 0; |