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authorAlex Deucher <alexdeucher@gmail.com>2014-05-30 12:40:15 -0400
committerDave Airlie <airlied@redhat.com>2014-06-02 13:33:03 +1000
commit3640da2faa952a2e9439a254c1ce76033ca0a6dc (patch)
tree971931907a986ca956c614b4bd3fe25d2cc1d2f5 /drivers/gpu/drm/radeon/radeon_device.c
parent18ee37a485653aa635cfab9a3710e9bcf5fbca01 (diff)
downloadlinux-stericsson-3640da2faa952a2e9439a254c1ce76033ca0a6dc.tar.gz
drm/radeon/dpm: resume fixes for some systems
Setting the power state prior to restoring the display hardware leads to blank screens on some systems. Drop the power state set from dpm resume. The power state will get set as part of the mode set sequence. Also add an explicit power state set after mode set resume to cover PX and headless systems. bug: https://bugzilla.kernel.org/show_bug.cgi?id=76761 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_device.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_device.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 14671406212f..2cd144c378d6 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1558,6 +1558,10 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
drm_kms_helper_poll_enable(dev);
+ /* set the power state here in case we are a PX system or headless */
+ if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
+ radeon_pm_compute_clocks(rdev);
+
if (fbcon) {
radeon_fbdev_set_suspend(rdev, 0);
console_unlock();