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drm/radeon/runpm: don't runtime suspend non-PX cards 

Prevent runtime suspend of non-PX GPUs.  Runtime suspend is
not what we want in those cases.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2014-01-24 14:59:42 -05:00
parent 1d78416766
commit 9babd35ad7
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/radeon/radeon_drv.c
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@ -405,6 +405,9 @@ static int radeon_pmops_runtime_suspend(struct device *dev)
if (radeon_runtime_pm == 0)
return -EINVAL;
if (radeon_runtime_pm == -1 && !radeon_is_px())
return -EINVAL;
drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
drm_kms_helper_poll_disable(drm_dev);
vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
@ -427,6 +430,9 @@ static int radeon_pmops_runtime_resume(struct device *dev)
if (radeon_runtime_pm == 0)
return -EINVAL;
if (radeon_runtime_pm == -1 && !radeon_is_px())
return -EINVAL;
drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
pci_set_power_state(pdev, PCI_D0);