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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-12-15 14:52:16 -0300
commit8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch)
treee9891aa6c295060d065adffd610c4f49ecf884f3 /drivers/dma/imx-dma.c
parenta71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff)
Linux-libre 4.3.2-gnu
Diffstat (limited to 'drivers/dma/imx-dma.c')
-rw-r--r--drivers/dma/imx-dma.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 865501fcc..48d85f8b9 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -1083,8 +1083,12 @@ static int __init imxdma_probe(struct platform_device *pdev)
if (IS_ERR(imxdma->dma_ahb))
return PTR_ERR(imxdma->dma_ahb);
- clk_prepare_enable(imxdma->dma_ipg);
- clk_prepare_enable(imxdma->dma_ahb);
+ ret = clk_prepare_enable(imxdma->dma_ipg);
+ if (ret)
+ return ret;
+ ret = clk_prepare_enable(imxdma->dma_ahb);
+ if (ret)
+ goto disable_dma_ipg_clk;
/* reset DMA module */
imx_dmav1_writel(imxdma, DCR_DRST, DMA_DCR);
@@ -1094,20 +1098,20 @@ static int __init imxdma_probe(struct platform_device *pdev)
dma_irq_handler, 0, "DMA", imxdma);
if (ret) {
dev_warn(imxdma->dev, "Can't register IRQ for DMA\n");
- goto err;
+ goto disable_dma_ahb_clk;
}
irq_err = platform_get_irq(pdev, 1);
if (irq_err < 0) {
ret = irq_err;
- goto err;
+ goto disable_dma_ahb_clk;
}
ret = devm_request_irq(&pdev->dev, irq_err,
imxdma_err_handler, 0, "DMA", imxdma);
if (ret) {
dev_warn(imxdma->dev, "Can't register ERRIRQ for DMA\n");
- goto err;
+ goto disable_dma_ahb_clk;
}
}
@@ -1144,7 +1148,7 @@ static int __init imxdma_probe(struct platform_device *pdev)
dev_warn(imxdma->dev, "Can't register IRQ %d "
"for DMA channel %d\n",
irq + i, i);
- goto err;
+ goto disable_dma_ahb_clk;
}
init_timer(&imxdmac->watchdog);
imxdmac->watchdog.function = &imxdma_watchdog;
@@ -1183,14 +1187,14 @@ static int __init imxdma_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, imxdma);
- imxdma->dma_device.copy_align = 2; /* 2^2 = 4 bytes alignment */
+ imxdma->dma_device.copy_align = DMAENGINE_ALIGN_4_BYTES;
imxdma->dma_device.dev->dma_parms = &imxdma->dma_parms;
dma_set_max_seg_size(imxdma->dma_device.dev, 0xffffff);
ret = dma_async_device_register(&imxdma->dma_device);
if (ret) {
dev_err(&pdev->dev, "unable to register\n");
- goto err;
+ goto disable_dma_ahb_clk;
}
if (pdev->dev.of_node) {
@@ -1206,9 +1210,10 @@ static int __init imxdma_probe(struct platform_device *pdev)
err_of_dma_controller:
dma_async_device_unregister(&imxdma->dma_device);
-err:
- clk_disable_unprepare(imxdma->dma_ipg);
+disable_dma_ahb_clk:
clk_disable_unprepare(imxdma->dma_ahb);
+disable_dma_ipg_clk:
+ clk_disable_unprepare(imxdma->dma_ipg);
return ret;
}