From c53c6beddc0ebb6feb5d64488c2c0cd23dd7f43d Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 27 Mar 2014 02:31:08 +0000 Subject: [PATCH] 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 Reviewed-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_drv.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 84a1bbb75f9..f633c278217 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -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; } -- 2.43.2