diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2020-01-07 14:37:29 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-01-12 14:34:11 +0300 |
| commit | 687d39d4512aa5f644450d0662f40aeeac1e84a7 (patch) | |
| tree | 3089bc72ce1f67c6622112ab97052a22e74554fc /drivers/iio/adc | |
| parent | 735404b846dffcb320264f62b76e6f70012214dd (diff) | |
| download | linux-687d39d4512aa5f644450d0662f40aeeac1e84a7.tar.xz | |
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>
Diffstat (limited to 'drivers/iio/adc')
| -rw-r--r-- | drivers/iio/adc/at91-sama5d2_adc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index e1850f3d5cf3..a5c7771227d5 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -1444,10 +1444,10 @@ static void at91_adc_dma_init(struct platform_device *pdev) if (st->dma_st.dma_chan) return; - st->dma_st.dma_chan = dma_request_slave_channel(&pdev->dev, "rx"); - - if (!st->dma_st.dma_chan) { + st->dma_st.dma_chan = dma_request_chan(&pdev->dev, "rx"); + if (IS_ERR(st->dma_st.dma_chan)) { dev_info(&pdev->dev, "can't get DMA channel\n"); + st->dma_st.dma_chan = NULL; goto dma_exit; } |