drm/radeon: force MSIs on RS690 asics

[pandora-kernel.git] / drivers / dma / imx-dma.c

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index fcfeb3c..5084975 100644 (file)
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -172,7 +172,8 @@ struct imxdma_engine {
        struct device_dma_parameters    dma_parms;
        struct dma_device               dma_device;
        void __iomem                    *base;
-       struct clk                      *dma_clk;
+       struct clk                      *dma_ahb;
+       struct clk                      *dma_ipg;
        spinlock_t                      lock;
        struct imx_dma_2d_config        slots_2d[IMX_DMA_2D_SLOTS];
        struct imxdma_channel           channel[IMX_DMA_CHANNELS];
@@ -976,10 +977,20 @@ static int __init imxdma_probe(struct platform_device *pdev)
                return 0;
        }
 
-       imxdma->dma_clk = clk_get(NULL, "dma");
-       if (IS_ERR(imxdma->dma_clk))
-               return PTR_ERR(imxdma->dma_clk);
-       clk_enable(imxdma->dma_clk);
+       imxdma->dma_ipg = devm_clk_get(&pdev->dev, "ipg");
+       if (IS_ERR(imxdma->dma_ipg)) {
+               ret = PTR_ERR(imxdma->dma_ipg);
+               goto err_clk;
+       }
+
+       imxdma->dma_ahb = devm_clk_get(&pdev->dev, "ahb");
+       if (IS_ERR(imxdma->dma_ahb)) {
+               ret = PTR_ERR(imxdma->dma_ahb);
+               goto err_clk;
+       }
+
+       clk_prepare_enable(imxdma->dma_ipg);
+       clk_prepare_enable(imxdma->dma_ahb);
 
        /* reset DMA module */
        imx_dmav1_writel(imxdma, DCR_DRST, DMA_DCR);
@@ -988,16 +999,14 @@ static int __init imxdma_probe(struct platform_device *pdev)
                ret = request_irq(MX1_DMA_INT, dma_irq_handler, 0, "DMA", imxdma);
                if (ret) {
                        dev_warn(imxdma->dev, "Can't register IRQ for DMA\n");
-                       kfree(imxdma);
-                       return ret;
+                       goto err_enable;
                }
 
                ret = request_irq(MX1_DMA_ERR, imxdma_err_handler, 0, "DMA", imxdma);
                if (ret) {
                        dev_warn(imxdma->dev, "Can't register ERRIRQ for DMA\n");
                        free_irq(MX1_DMA_INT, NULL);
-                       kfree(imxdma);
-                       return ret;
+                       goto err_enable;
                }
        }
 
@@ -1094,7 +1103,10 @@ err_init:
                free_irq(MX1_DMA_INT, NULL);
                free_irq(MX1_DMA_ERR, NULL);
        }
-
+err_enable:
+       clk_disable_unprepare(imxdma->dma_ipg);
+       clk_disable_unprepare(imxdma->dma_ahb);
+err_clk:
        kfree(imxdma);
        return ret;
 }
@@ -1114,7 +1126,9 @@ static int __exit imxdma_remove(struct platform_device *pdev)
                free_irq(MX1_DMA_ERR, NULL);
        }
 
-        kfree(imxdma);
+       clk_disable_unprepare(imxdma->dma_ipg);
+       clk_disable_unprepare(imxdma->dma_ahb);
+       kfree(imxdma);
 
         return 0;
 }