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authorBaolin Wang <baolin.wang@linaro.org>2019-05-20 14:32:19 +0300
committerVinod Koul <vkoul@kernel.org>2019-05-27 08:53:52 +0300
commitcaf5e3e6e14d0b7df5c404683ff5d4fce4733a99 (patch)
tree6a25b4dcd8dc7fc5acdd1b22abf1ca5492f07368 /drivers/dma/mxs-dma.c
parent1d967195fd456ae0e5425ee39611455de32dc9de (diff)
downloadlinux-caf5e3e6e14d0b7df5c404683ff5d4fce4733a99.tar.xz
dmaengine: mxs-dma: Let the core do the device node validation
Let the DMA engine core do the device node validation instead of drivers. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/mxs-dma.c')
-rw-r--r--drivers/dma/mxs-dma.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index 22cc7f68ef6e..8ce5e790352f 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -716,7 +716,6 @@ err_out:
}
struct mxs_dma_filter_param {
- struct device_node *of_node;
unsigned int chan_id;
};
@@ -727,9 +726,6 @@ static bool mxs_dma_filter_fn(struct dma_chan *chan, void *fn_param)
struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma;
int chan_irq;
- if (mxs_dma->dma_device.dev->of_node != param->of_node)
- return false;
-
if (chan->chan_id != param->chan_id)
return false;
@@ -752,13 +748,13 @@ static struct dma_chan *mxs_dma_xlate(struct of_phandle_args *dma_spec,
if (dma_spec->args_count != 1)
return NULL;
- param.of_node = ofdma->of_node;
param.chan_id = dma_spec->args[0];
if (param.chan_id >= mxs_dma->nr_channels)
return NULL;
- return dma_request_channel(mask, mxs_dma_filter_fn, &param);
+ return __dma_request_channel(&mask, mxs_dma_filter_fn, &param,
+ ofdma->of_node);
}
static int __init mxs_dma_probe(struct platform_device *pdev)