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linux-sg2042
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Merge branch 'fixes_for-3.6' into fixes

This commit is contained in:
Vinod Koul 2012-08-06 10:46:37 +05:30
parent 0d7614f09c a2367db2ec
commit f986ffedd7
1 changed files with 25 additions and 11 deletions
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36
drivers/dma/imx-dma.c
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@ -172,7 +172,8 @@ struct imxdma_engine {
struct device_dma_parameters dma_parms; struct device_dma_parameters dma_parms;
struct dma_device dma_device; struct dma_device dma_device;
void __iomem *base; void __iomem *base;
struct clk *dma_clk; struct clk *dma_ahb;
struct clk *dma_ipg;
spinlock_t lock; spinlock_t lock;
struct imx_dma_2d_config slots_2d[IMX_DMA_2D_SLOTS]; struct imx_dma_2d_config slots_2d[IMX_DMA_2D_SLOTS];
struct imxdma_channel channel[IMX_DMA_CHANNELS]; struct imxdma_channel channel[IMX_DMA_CHANNELS];
@ -976,10 +977,20 @@ static int __init imxdma_probe(struct platform_device *pdev)
return 0; return 0;
} }
imxdma->dma_clk = clk_get(NULL, "dma"); imxdma->dma_ipg = devm_clk_get(&pdev->dev, "ipg");
if (IS_ERR(imxdma->dma_clk)) if (IS_ERR(imxdma->dma_ipg)) {
return PTR_ERR(imxdma->dma_clk); ret = PTR_ERR(imxdma->dma_ipg);
clk_enable(imxdma->dma_clk); 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 */ /* reset DMA module */
imx_dmav1_writel(imxdma, DCR_DRST, DMA_DCR); 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); ret = request_irq(MX1_DMA_INT, dma_irq_handler, 0, "DMA", imxdma);
if (ret) { if (ret) {
dev_warn(imxdma->dev, "Can't register IRQ for DMA\n"); dev_warn(imxdma->dev, "Can't register IRQ for DMA\n");
kfree(imxdma); goto err_enable;
return ret;
} }
ret = request_irq(MX1_DMA_ERR, imxdma_err_handler, 0, "DMA", imxdma); ret = request_irq(MX1_DMA_ERR, imxdma_err_handler, 0, "DMA", imxdma);
if (ret) { if (ret) {
dev_warn(imxdma->dev, "Can't register ERRIRQ for DMA\n"); dev_warn(imxdma->dev, "Can't register ERRIRQ for DMA\n");
free_irq(MX1_DMA_INT, NULL); free_irq(MX1_DMA_INT, NULL);
kfree(imxdma); goto err_enable;
return ret;
} }
} }
@ -1094,7 +1103,10 @@ err_init:
free_irq(MX1_DMA_INT, NULL); free_irq(MX1_DMA_INT, NULL);
free_irq(MX1_DMA_ERR, 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); kfree(imxdma);
return ret; return ret;
} }
@ -1114,7 +1126,9 @@ static int __exit imxdma_remove(struct platform_device *pdev)
free_irq(MX1_DMA_ERR, NULL); free_irq(MX1_DMA_ERR, NULL);
} }
kfree(imxdma); clk_disable_unprepare(imxdma->dma_ipg);
clk_disable_unprepare(imxdma->dma_ahb);
kfree(imxdma);
return 0; return 0;
} }