diff options
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_g2d.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index 4722662e22c7..f81cfd434bb9 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c | |||
@@ -806,9 +806,20 @@ static void g2d_dma_start(struct g2d_data *g2d, | |||
806 | struct g2d_cmdlist_node *node = | 806 | struct g2d_cmdlist_node *node = |
807 | list_first_entry(&runqueue_node->run_cmdlist, | 807 | list_first_entry(&runqueue_node->run_cmdlist, |
808 | struct g2d_cmdlist_node, list); | 808 | struct g2d_cmdlist_node, list); |
809 | int ret; | ||
810 | |||
811 | ret = pm_runtime_get_sync(g2d->dev); | ||
812 | if (ret < 0) { | ||
813 | dev_warn(g2d->dev, "failed pm power on.\n"); | ||
814 | return; | ||
815 | } | ||
809 | 816 | ||
810 | pm_runtime_get_sync(g2d->dev); | 817 | ret = clk_prepare_enable(g2d->gate_clk); |
811 | clk_enable(g2d->gate_clk); | 818 | if (ret < 0) { |
819 | dev_warn(g2d->dev, "failed to enable clock.\n"); | ||
820 | pm_runtime_put_sync(g2d->dev); | ||
821 | return; | ||
822 | } | ||
812 | 823 | ||
813 | writel_relaxed(node->dma_addr, g2d->regs + G2D_DMA_SFR_BASE_ADDR); | 824 | writel_relaxed(node->dma_addr, g2d->regs + G2D_DMA_SFR_BASE_ADDR); |
814 | writel_relaxed(G2D_DMA_START, g2d->regs + G2D_DMA_COMMAND); | 825 | writel_relaxed(G2D_DMA_START, g2d->regs + G2D_DMA_COMMAND); |
@@ -861,7 +872,7 @@ static void g2d_runqueue_worker(struct work_struct *work) | |||
861 | runqueue_work); | 872 | runqueue_work); |
862 | 873 | ||
863 | mutex_lock(&g2d->runqueue_mutex); | 874 | mutex_lock(&g2d->runqueue_mutex); |
864 | clk_disable(g2d->gate_clk); | 875 | clk_disable_unprepare(g2d->gate_clk); |
865 | pm_runtime_put_sync(g2d->dev); | 876 | pm_runtime_put_sync(g2d->dev); |
866 | 877 | ||
867 | complete(&g2d->runqueue_node->complete); | 878 | complete(&g2d->runqueue_node->complete); |