diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2019-12-17 14:30:31 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2019-12-19 10:19:42 +0300 |
| commit | b67b45179b34b76a3c90bcc8b05b7141e74df909 (patch) | |
| tree | 969decca517f694493c113e6fd4494a032289777 /drivers/mmc/host/sh_mmcif.c | |
| parent | e1ebb456ae4cd86553c4a28bcf2c3cc7593dc60f (diff) | |
| download | linux-b67b45179b34b76a3c90bcc8b05b7141e74df909.tar.xz | |
mmc: sh_mmcif: 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.
By using dma_request_chan() directly the driver can support deferred
probing against DMA if needed.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20191217113031.31847-1-peter.ujfalusi@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sh_mmcif.c')
| -rw-r--r-- | drivers/mmc/host/sh_mmcif.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 5069f1cbcef8..7e1fd557109c 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -432,8 +432,12 @@ static void sh_mmcif_request_dma(struct sh_mmcif_host *host) host->chan_rx = sh_mmcif_request_dma_pdata(host, pdata->slave_id_rx); } else { - host->chan_tx = dma_request_slave_channel(dev, "tx"); - host->chan_rx = dma_request_slave_channel(dev, "rx"); + host->chan_tx = dma_request_chan(dev, "tx"); + if (IS_ERR(host->chan_tx)) + host->chan_tx = NULL; + host->chan_rx = dma_request_chan(dev, "rx"); + if (IS_ERR(host->chan_rx)) + host->chan_rx = NULL; } dev_dbg(dev, "%s: got channel TX %p RX %p\n", __func__, host->chan_tx, host->chan_rx); |