diff options
| author | Jordan Crouse <jcrouse@codeaurora.org> | 2019-02-04 09:15:43 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2019-04-19 11:50:06 -0700 |
| commit | 41570b747cf3ae8fcd1cb0ac954cb1b3240af9bd (patch) | |
| tree | 930743b5365b224d1f3801a99491005283556a74 /drivers/gpu/drm/msm/adreno/a6xx_gpu.c | |
| parent | e31fdb74c183a8cfe32dc31974f3d626b3af4393 (diff) | |
| download | linux-41570b747cf3ae8fcd1cb0ac954cb1b3240af9bd.tar.bz2 | |
msm/drm/a6xx: Turn off the GMU if resume fails
Currently if the GMU resume function fails all we try to do is clear the
BOOT_SLUMBER oob which usually times out and ends up in a cycle of death.
If the resume function fails at any point remove any RPMh votes that might
have been added and try to shut down the GMU hardware cleanly.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index f76d8cd06f93..576559a3a523 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -678,13 +678,15 @@ static int a6xx_pm_resume(struct msm_gpu *gpu) struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); int ret; - ret = a6xx_gmu_resume(a6xx_gpu); - gpu->needs_hw_init = true; + ret = a6xx_gmu_resume(a6xx_gpu); + if (ret) + return ret; + msm_gpu_resume_devfreq(gpu); - return ret; + return 0; } static int a6xx_pm_suspend(struct msm_gpu *gpu) @@ -694,18 +696,6 @@ static int a6xx_pm_suspend(struct msm_gpu *gpu) devfreq_suspend_device(gpu->devfreq.devfreq); - /* - * Make sure the GMU is idle before continuing (because some transitions - * may use VBIF - */ - a6xx_gmu_wait_for_idle(&a6xx_gpu->gmu); - - /* Clear the VBIF pipe before shutting down */ - /* FIXME: This accesses the GPU - do we need to make sure it is on? */ - gpu_write(gpu, REG_A6XX_VBIF_XIN_HALT_CTRL0, 0xf); - spin_until((gpu_read(gpu, REG_A6XX_VBIF_XIN_HALT_CTRL1) & 0xf) == 0xf); - gpu_write(gpu, REG_A6XX_VBIF_XIN_HALT_CTRL0, 0); - return a6xx_gmu_stop(a6xx_gpu); } |