Messages in this thread Patch in this message |  | | Date | Fri, 10 Feb 2012 14:33:26 -0800 | From | Greg KH <> | Subject | [patch 22/55] drm/radeon/kms: disable output polling when suspended |
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3.0-stable review patch. If anyone has any objections, please let me know.
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From: Seth Forshee <seth.forshee@canonical.com>
commit 86698c20f71d488b32c49ed4687fb3cf8a88a5ca upstream.
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> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/radeon/radeon_device.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -857,6 +857,8 @@ int radeon_suspend_kms(struct drm_device 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); @@ -943,6 +945,8 @@ int radeon_resume_kms(struct drm_device 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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