From 448406eaf6c2a1f9941af1027dc610fd7461f0dc Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Wed, 7 Jun 2023 15:02:20 +0200 Subject: drm/etnaviv: avoid runtime PM usage in etnaviv_gpu_bind Nothing in this callpath actually touches the GPU, so there is no reason to get it out of suspend state here. Only if runtime PM isn't enabled at all we must make sure to enable the clocks, so the GPU init routine can access the GPU later on. This also removes the need to guard against the state where the driver isn't fully initialized yet in the runtime PM resume handler. Signed-off-by: Lucas Stach Reviewed-by: Christian Gmeiner --- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) (limited to 'drivers/gpu/drm/etnaviv') diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 73ce95df4cc0..d3187ca9e1a3 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -1743,13 +1743,11 @@ static int etnaviv_gpu_bind(struct device *dev, struct device *master, if (ret) goto out_workqueue; - if (IS_ENABLED(CONFIG_PM)) - ret = pm_runtime_get_sync(gpu->dev); - else + if (!IS_ENABLED(CONFIG_PM)) { ret = etnaviv_gpu_clk_enable(gpu); - if (ret < 0) - goto out_sched; - + if (ret < 0) + goto out_sched; + } gpu->drm = drm; gpu->fence_context = dma_fence_context_alloc(1); @@ -1761,9 +1759,6 @@ static int etnaviv_gpu_bind(struct device *dev, struct device *master, priv->gpu[priv->num_gpus++] = gpu; - pm_runtime_mark_last_busy(gpu->dev); - pm_runtime_put_autosuspend(gpu->dev); - return 0; out_sched: @@ -1944,7 +1939,7 @@ static int etnaviv_gpu_rpm_resume(struct device *dev) return ret; /* Re-initialise the basic hardware state */ - if (gpu->drm && gpu->initialized) { + if (gpu->initialized) { ret = etnaviv_gpu_hw_resume(gpu); if (ret) { etnaviv_gpu_clk_disable(gpu); -- cgit v1.2.3