diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2012-09-15 15:57:00 +0800 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2012-10-15 10:03:17 +0800 |
| commit | 73930eb31b2ecb0177c9bf81a35b4d2d73716951 (patch) | |
| tree | 0a341a992eb4f6b986a6fc665b4b48e049a3cbe3 /drivers/dma/imx-dma.c | |
| parent | 04bbd8ef533fed260ea8cc249b534c1cbbc7f9d0 (diff) | |
dma: imx-dma: retrieve MEM and IRQ from resources
Retrieve MEM and IRQ from resources rather than directly using the
value by including machine header.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma/imx-dma.c')
| -rw-r--r-- | drivers/dma/imx-dma.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index 1f2b79009d69..88e8a8d89b56 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -959,23 +959,22 @@ static void imxdma_issue_pending(struct dma_chan *chan) static int __init imxdma_probe(struct platform_device *pdev) { struct imxdma_engine *imxdma; + struct resource *res; int ret, i; - + int irq, irq_err; imxdma = devm_kzalloc(&pdev->dev, sizeof(*imxdma), GFP_KERNEL); if (!imxdma) return -ENOMEM; - if (cpu_is_mx1()) { - imxdma->base = MX1_IO_ADDRESS(MX1_DMA_BASE_ADDR); - } else if (cpu_is_mx21()) { - imxdma->base = MX21_IO_ADDRESS(MX21_DMA_BASE_ADDR); - } else if (cpu_is_mx27()) { - imxdma->base = MX27_IO_ADDRESS(MX27_DMA_BASE_ADDR); - } else { - kfree(imxdma); - return 0; - } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + imxdma->base = devm_request_and_ioremap(&pdev->dev, res); + if (!imxdma->base) + return -EADDRNOTAVAIL; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; imxdma->dma_ipg = devm_clk_get(&pdev->dev, "ipg"); if (IS_ERR(imxdma->dma_ipg)) @@ -992,14 +991,20 @@ static int __init imxdma_probe(struct platform_device *pdev) imx_dmav1_writel(imxdma, DCR_DRST, DMA_DCR); if (cpu_is_mx1()) { - ret = devm_request_irq(&pdev->dev, MX1_DMA_INT, + ret = devm_request_irq(&pdev->dev, irq, dma_irq_handler, 0, "DMA", imxdma); if (ret) { dev_warn(imxdma->dev, "Can't register IRQ for DMA\n"); goto err; } - ret = devm_request_irq(&pdev->dev, MX1_DMA_ERR, + irq_err = platform_get_irq(pdev, 1); + if (irq_err < 0) { + ret = irq_err; + goto err; + } + + 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"); @@ -1034,12 +1039,12 @@ static int __init imxdma_probe(struct platform_device *pdev) struct imxdma_channel *imxdmac = &imxdma->channel[i]; if (cpu_is_mx21() || cpu_is_mx27()) { - ret = devm_request_irq(&pdev->dev, MX2x_INT_DMACH0 + i, + ret = devm_request_irq(&pdev->dev, irq + i, dma_irq_handler, 0, "DMA", imxdma); if (ret) { dev_warn(imxdma->dev, "Can't register IRQ %d " "for DMA channel %d\n", - MX2x_INT_DMACH0 + i, i); + irq + i, i); goto err; } init_timer(&imxdmac->watchdog); |