diff options
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 80 |
1 files changed, 37 insertions, 43 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index a31eeff2b297..d5a4cd85a0f6 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -722,7 +722,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) ret = pm_runtime_get_sync(gpu->dev); if (ret < 0) { dev_err(gpu->dev, "Failed to enable GPU power domain\n"); - return ret; + goto pm_put; } etnaviv_hw_identify(gpu); @@ -819,6 +819,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) fail: pm_runtime_mark_last_busy(gpu->dev); +pm_put: pm_runtime_put_autosuspend(gpu->dev); return ret; @@ -859,7 +860,7 @@ int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m) ret = pm_runtime_get_sync(gpu->dev); if (ret < 0) - return ret; + goto pm_put; dma_lo = gpu_read(gpu, VIVS_FE_DMA_LOW); dma_hi = gpu_read(gpu, VIVS_FE_DMA_HIGH); @@ -1003,6 +1004,7 @@ int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m) ret = 0; pm_runtime_mark_last_busy(gpu->dev); +pm_put: pm_runtime_put_autosuspend(gpu->dev); return ret; @@ -1016,7 +1018,7 @@ void etnaviv_gpu_recover_hang(struct etnaviv_gpu *gpu) dev_err(gpu->dev, "recover hung GPU!\n"); if (pm_runtime_get_sync(gpu->dev) < 0) - return; + goto pm_put; mutex_lock(&gpu->lock); @@ -1035,6 +1037,7 @@ void etnaviv_gpu_recover_hang(struct etnaviv_gpu *gpu) mutex_unlock(&gpu->lock); pm_runtime_mark_last_busy(gpu->dev); +pm_put: pm_runtime_put_autosuspend(gpu->dev); } @@ -1308,8 +1311,10 @@ struct dma_fence *etnaviv_gpu_submit(struct etnaviv_gem_submit *submit) if (!submit->runtime_resumed) { ret = pm_runtime_get_sync(gpu->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put_noidle(gpu->dev); return NULL; + } submit->runtime_resumed = true; } @@ -1326,6 +1331,7 @@ struct dma_fence *etnaviv_gpu_submit(struct etnaviv_gem_submit *submit) ret = event_alloc(gpu, nr_events, event); if (ret) { DRM_ERROR("no free events\n"); + pm_runtime_put_noidle(gpu->dev); return NULL; } @@ -1487,52 +1493,40 @@ static int etnaviv_gpu_clk_enable(struct etnaviv_gpu *gpu) { int ret; - if (gpu->clk_reg) { - ret = clk_prepare_enable(gpu->clk_reg); - if (ret) - return ret; - } + ret = clk_prepare_enable(gpu->clk_reg); + if (ret) + return ret; - if (gpu->clk_bus) { - ret = clk_prepare_enable(gpu->clk_bus); - if (ret) - return ret; - } + ret = clk_prepare_enable(gpu->clk_bus); + if (ret) + goto disable_clk_reg; - if (gpu->clk_core) { - ret = clk_prepare_enable(gpu->clk_core); - if (ret) - goto disable_clk_bus; - } + ret = clk_prepare_enable(gpu->clk_core); + if (ret) + goto disable_clk_bus; - if (gpu->clk_shader) { - ret = clk_prepare_enable(gpu->clk_shader); - if (ret) - goto disable_clk_core; - } + ret = clk_prepare_enable(gpu->clk_shader); + if (ret) + goto disable_clk_core; return 0; disable_clk_core: - if (gpu->clk_core) - clk_disable_unprepare(gpu->clk_core); + clk_disable_unprepare(gpu->clk_core); disable_clk_bus: - if (gpu->clk_bus) - clk_disable_unprepare(gpu->clk_bus); + clk_disable_unprepare(gpu->clk_bus); +disable_clk_reg: + clk_disable_unprepare(gpu->clk_reg); return ret; } static int etnaviv_gpu_clk_disable(struct etnaviv_gpu *gpu) { - if (gpu->clk_shader) - clk_disable_unprepare(gpu->clk_shader); - if (gpu->clk_core) - clk_disable_unprepare(gpu->clk_core); - if (gpu->clk_bus) - clk_disable_unprepare(gpu->clk_bus); - if (gpu->clk_reg) - clk_disable_unprepare(gpu->clk_reg); + clk_disable_unprepare(gpu->clk_shader); + clk_disable_unprepare(gpu->clk_core); + clk_disable_unprepare(gpu->clk_bus); + clk_disable_unprepare(gpu->clk_reg); return 0; } @@ -1783,26 +1777,26 @@ static int etnaviv_gpu_platform_probe(struct platform_device *pdev) } /* Get Clocks: */ - gpu->clk_reg = devm_clk_get(&pdev->dev, "reg"); + gpu->clk_reg = devm_clk_get_optional(&pdev->dev, "reg"); DBG("clk_reg: %p", gpu->clk_reg); if (IS_ERR(gpu->clk_reg)) - gpu->clk_reg = NULL; + return PTR_ERR(gpu->clk_reg); - gpu->clk_bus = devm_clk_get(&pdev->dev, "bus"); + gpu->clk_bus = devm_clk_get_optional(&pdev->dev, "bus"); DBG("clk_bus: %p", gpu->clk_bus); if (IS_ERR(gpu->clk_bus)) - gpu->clk_bus = NULL; + return PTR_ERR(gpu->clk_bus); gpu->clk_core = devm_clk_get(&pdev->dev, "core"); DBG("clk_core: %p", gpu->clk_core); if (IS_ERR(gpu->clk_core)) - gpu->clk_core = NULL; + return PTR_ERR(gpu->clk_core); gpu->base_rate_core = clk_get_rate(gpu->clk_core); - gpu->clk_shader = devm_clk_get(&pdev->dev, "shader"); + gpu->clk_shader = devm_clk_get_optional(&pdev->dev, "shader"); DBG("clk_shader: %p", gpu->clk_shader); if (IS_ERR(gpu->clk_shader)) - gpu->clk_shader = NULL; + return PTR_ERR(gpu->clk_shader); gpu->base_rate_shader = clk_get_rate(gpu->clk_shader); /* TODO: figure out max mapped size */ |