From 9babd35ad72af631547c7ca294bc2e931cc40e58 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 24 Jan 2014 14:59:42 -0500 Subject: [PATCH] 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 Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_drv.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 1235a78fbba1..ec8c388eec17 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -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);