diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-04-23 16:07:15 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-04-23 16:07:15 -0700 |
| commit | 57eb13a9e8f5d45a95d64da2174528666240031d (patch) | |
| tree | 71aa69d108c3050a132c1181cb9b4a9eb69ac04e /drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | |
| parent | 04bb1719c4de94700056241d4c0fe3c1413f5aff (diff) | |
| parent | 96a938aa214e965d5b4a2f10443b29cad14289b9 (diff) | |
Merge branch 'ib-chrome-platform-input-atmel-mx-ts-platform-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform into next
Sync up with chrome-platform to bring in changes to Atmel touch
controller.
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c index 74d2efaec52f..7a073ac5f9c6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c @@ -69,25 +69,18 @@ void amdgpu_connector_hotplug(struct drm_connector *connector) /* don't do anything if sink is not display port, i.e., * passive dp->(dvi|hdmi) adaptor */ - if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) { - int saved_dpms = connector->dpms; - /* Only turn off the display if it's physically disconnected */ - if (!amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd)) { - drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); - } else if (amdgpu_atombios_dp_needs_link_train(amdgpu_connector)) { - /* Don't try to start link training before we - * have the dpcd */ - if (amdgpu_atombios_dp_get_dpcd(amdgpu_connector)) - return; - - /* set it to OFF so that drm_helper_connector_dpms() - * won't return immediately since the current state - * is ON at this point. - */ - connector->dpms = DRM_MODE_DPMS_OFF; - drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); - } - connector->dpms = saved_dpms; + if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT && + amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd) && + amdgpu_atombios_dp_needs_link_train(amdgpu_connector)) { + /* Don't start link training before we have the DPCD */ + if (amdgpu_atombios_dp_get_dpcd(amdgpu_connector)) + return; + + /* Turn the connector off and back on immediately, which + * will trigger link training + */ + drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); + drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); } } } |