| From | Greg Kroah-Hartman <> | Subject | [ 083/122] drm/radeon: fix dpms on/off on trinity/aruba v2 | Date | Tue, 7 Aug 2012 15:26:11 -0700 |
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From: Greg KH <gregkh@linuxfoundation.org>
3.5-stable review patch. If anyone has any objections, please let me know.
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From: Jerome Glisse <jglisse@redhat.com>
commit fcedac670c3da0d17aaa5db1708694971e8024a9 upstream.
The external encoder need to be setup again before enabling the transmiter. This seems to be only needed on some trinity/aruba to fix dpms on.
v2: Add comment, only setup again on dce6 ie aruba or newer.
Signed-off-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/radeon/atombios_encoders.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -1392,10 +1392,18 @@ radeon_atom_encoder_dpms_dig(struct drm_ case DRM_MODE_DPMS_ON: /* some early dce3.2 boards have a bug in their transmitter control table */ if ((rdev->family == CHIP_RV710) || (rdev->family == CHIP_RV730) || - ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) + ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) { + if (ASIC_IS_DCE6(rdev)) { + /* It seems we need to call ATOM_ENCODER_CMD_SETUP again + * before reenabling encoder on DPMS ON, otherwise we never + * get picture + */ + atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0); + } atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0); - else + } else { atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0); + } if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) { if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { atombios_set_edp_panel_power(connector,
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