bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-05 06:52:34 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: disable runpm if we are the primary adapter

Browse Source 
If we are the primary adapter (i.e., the one used by the firwmare
framebuffer), disable runtime pm.  This fixes a regression caused
by commit 55285e21f0 which results in the displays waking up
shortly after they go to sleep due to the device coming out of
runtime suspend and sending a hotplug uevent.

v2: squash in reworked fix from Evan

Fixes: 55285e21f0 ("fbdev/efifb: Release PCI device's runtime PM ref during FB destroy")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=215203
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1840
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2021-12-22 22:57:16 -05:00
parent 9a45ac2320
commit b95dc06af3
3 changed files with 35 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View File

@@ -206,6 +206,12 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
adev->runpm = true;
break;
}
/* XXX: disable runtime pm if we are the primary adapter
* to avoid displays being re-enabled after DPMS.
* This needs to be sorted out and fixed properly.
*/
if (adev->is_fw_fb)
adev->runpm = false;
if (adev->runpm)
dev_info(adev->dev, "Using BACO for runtime pm\n");
}