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iio: adc: at91-sama5d2_adc: Use dma_request_chan() instead dma_request_slave_channel()
dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. The dma_request_chan() is the standard API to request slave channel, clients should be moved away from the legacy API to allow us to retire them. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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1 changed files with 3 additions and 3 deletions
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@ -1444,10 +1444,10 @@ static void at91_adc_dma_init(struct platform_device *pdev)
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if (st->dma_st.dma_chan)
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return;
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st->dma_st.dma_chan = dma_request_slave_channel(&pdev->dev, "rx");
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if (!st->dma_st.dma_chan) {
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st->dma_st.dma_chan = dma_request_chan(&pdev->dev, "rx");
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if (IS_ERR(st->dma_st.dma_chan)) {
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dev_info(&pdev->dev, "can't get DMA channel\n");
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st->dma_st.dma_chan = NULL;
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goto dma_exit;
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}
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