hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

drm/radeon: fix runtime suspend breaking secondary GPUs 

Same fix as for nouveau, when we fail with EINVAL, subsequent
gets fail hard, causing the device not to open.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dave Airlie 2014-03-27 02:31:08 +00:00
parent adbbdbac04
commit c53c6beddc
1 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/radeon/radeon_drv.c
View File

@ -403,11 +403,15 @@ static int radeon_pmops_runtime_suspend(struct device *dev)
struct drm_device *drm_dev = pci_get_drvdata(pdev);
int ret;
if (radeon_runtime_pm == 0)
return -EINVAL;
if (radeon_runtime_pm == 0) {
pm_runtime_forbid(dev);
return -EBUSY;
}
if (radeon_runtime_pm == -1 && !radeon_is_px())
return -EINVAL;
if (radeon_runtime_pm == -1 && !radeon_is_px()) {
pm_runtime_forbid(dev);
return -EBUSY;
}
drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
drm_kms_helper_poll_disable(drm_dev);
@ -456,12 +460,15 @@ static int radeon_pmops_runtime_idle(struct device *dev)
struct drm_device *drm_dev = pci_get_drvdata(pdev);
struct drm_crtc *crtc;
if (radeon_runtime_pm == 0)
if (radeon_runtime_pm == 0) {
pm_runtime_forbid(dev);
return -EBUSY;
}
/* are we PX enabled? */
if (radeon_runtime_pm == -1 && !radeon_is_px()) {
DRM_DEBUG_DRIVER("failing to power off - not px\n");
pm_runtime_forbid(dev);
return -EBUSY;
}