diff options
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_disp_rdma.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c index a3c487ea8344..95feacda49b1 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c @@ -63,6 +63,7 @@ struct mtk_disp_rdma_data { struct mtk_disp_rdma { struct mtk_ddp_comp ddp_comp; struct drm_crtc *crtc; + struct clk *clk; const struct mtk_disp_rdma_data *data; }; @@ -114,6 +115,20 @@ static void mtk_rdma_disable_vblank(struct mtk_ddp_comp *comp) rdma_update_bits(comp, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT, 0); } +static int mtk_rdma_clk_enable(struct device *dev) +{ + struct mtk_disp_rdma *rdma = dev_get_drvdata(dev); + + return clk_prepare_enable(rdma->clk); +} + +static void mtk_rdma_clk_disable(struct device *dev) +{ + struct mtk_disp_rdma *rdma = dev_get_drvdata(dev); + + clk_disable_unprepare(rdma->clk); +} + static void mtk_rdma_start(struct mtk_ddp_comp *comp) { rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN, @@ -229,6 +244,8 @@ static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx, } static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = { + .clk_enable = mtk_rdma_clk_enable, + .clk_disable = mtk_rdma_clk_disable, .config = mtk_rdma_config, .start = mtk_rdma_start, .stop = mtk_rdma_stop, @@ -286,6 +303,12 @@ static int mtk_disp_rdma_probe(struct platform_device *pdev) if (irq < 0) return irq; + priv->clk = devm_clk_get(dev, NULL); + if (IS_ERR(priv->clk)) { + dev_err(dev, "failed to get rdma clk\n"); + return PTR_ERR(priv->clk); + } + comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DISP_RDMA); if (comp_id < 0) { dev_err(dev, "Failed to identify by alias: %d\n", comp_id); |