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drm/radeon/kms: Fix logic error in DP HPD handler
Only disable the pipe if the monitor is physically disconnected. The previous logic also disabled the pipe if the link was trained. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=41248 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
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1 changed files with 4 additions and 4 deletions
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@ -68,11 +68,11 @@ void radeon_connector_hotplug(struct drm_connector *connector)
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if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
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int saved_dpms = connector->dpms;
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if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) &&
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radeon_dp_needs_link_train(radeon_connector))
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drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
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else
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/* Only turn off the display it it's physically disconnected */
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if (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))
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drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
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else if (radeon_dp_needs_link_train(radeon_connector))
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drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
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connector->dpms = saved_dpms;
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}
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}
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