drm/radeon/kms: disable output polling when suspended (86698c20) · Commits · 戴 / test

Polling the outputs when the device is suspended can result in erroneous status updates. Disable output polling during suspend to prevent this from happening. Signed-off-by:

Seth Forshee <seth.forshee@canonical.com> Reviewed-by:

Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by:

Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/radeon_device.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -883,6 +883,8 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
		if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
		return 0;

		drm_kms_helper_poll_disable(dev);

		/* turn off display hw */
		list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
		@@ -972,6 +974,8 @@ int radeon_resume_kms(struct drm_device *dev)
		list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
		}

		drm_kms_helper_poll_enable(dev);
		return 0;
		}

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