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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-04-23 16:07:15 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-04-23 16:07:15 -0700 |
commit | 57eb13a9e8f5d45a95d64da2174528666240031d (patch) | |
tree | 71aa69d108c3050a132c1181cb9b4a9eb69ac04e /drivers/gpu/drm/radeon/radeon_connectors.c | |
parent | Input: i8042 - enable MUX on Sony VAIO VGN-CS series to fix touchpad (diff) | |
parent | Input: atmel_mxt_ts - remove platform data support (diff) | |
download | linux-dev-57eb13a9e8f5d45a95d64da2174528666240031d.tar.xz linux-dev-57eb13a9e8f5d45a95d64da2174528666240031d.zip |
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/radeon/radeon_connectors.c')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_connectors.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 2e2ca3c6b47d..df9469a8fdb1 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -90,25 +90,18 @@ void radeon_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 (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) { - drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); - } else if (radeon_dp_needs_link_train(radeon_connector)) { - /* Don't try to start link training before we - * have the dpcd */ - if (!radeon_dp_getdpcd(radeon_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 && + radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) && + radeon_dp_needs_link_train(radeon_connector)) { + /* Don't start link training before we have the DPCD */ + if (!radeon_dp_getdpcd(radeon_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); } } } |