From c940b4476f4fb649f6493b6a0ae837474ded8915 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 18 Aug 2014 11:57:28 -0400 Subject: [PATCH] drm/radeon: fix pm handling in radeon_gpu_reset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit pm_suspend is handled in the radeon_suspend callbacks. pm_resume has special handling depending on whether dpm or legacy pm is enabled. Change radeon_gpu_reset to mirror the behavior in the suspend and resume pathes. Signed-off-by: Alex Deucher Reviewed-by: Christian König Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_device.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index c8ea050c8fa4..8e6187055061 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1680,7 +1680,6 @@ int radeon_gpu_reset(struct radeon_device *rdev) radeon_save_bios_scratch_regs(rdev); /* block TTM */ resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev); - radeon_pm_suspend(rdev); radeon_suspend(rdev); for (i = 0; i < RADEON_NUM_RINGS; ++i) { @@ -1726,9 +1725,24 @@ int radeon_gpu_reset(struct radeon_device *rdev) } } - radeon_pm_resume(rdev); + if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) { + /* do dpm late init */ + r = radeon_pm_late_init(rdev); + if (r) { + rdev->pm.dpm_enabled = false; + DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n"); + } + } else { + /* resume old pm late */ + radeon_pm_resume(rdev); + } + drm_helper_resume_force_mode(rdev->ddev); + /* set the power state here in case we are a PX system or headless */ + if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) + radeon_pm_compute_clocks(rdev); + ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched); if (r) { /* bad news, how to tell it to userspace ? */ -- GitLab