diff options
| author | Baolin Wang <baolin.wang@linaro.org> | 2019-05-20 14:32:18 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-05-27 08:53:52 +0300 |
| commit | 1d967195fd456ae0e5425ee39611455de32dc9de (patch) | |
| tree | cfc2b6000a0818f4fc3ddf01ca043ee968aa8ce8 /drivers/dma/mmp_tdma.c | |
| parent | c88ba7b940f8ec9b50216a69db4ddfa1af58a98c (diff) | |
| download | linux-1d967195fd456ae0e5425ee39611455de32dc9de.tar.xz | |
dmaengine: mmp_tdma: 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/mmp_tdma.c')
| -rw-r--r-- | drivers/dma/mmp_tdma.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c index 0c56faa03e9a..e76858b6b334 100644 --- a/drivers/dma/mmp_tdma.c +++ b/drivers/dma/mmp_tdma.c @@ -586,18 +586,12 @@ static int mmp_tdma_chan_init(struct mmp_tdma_device *tdev, } struct mmp_tdma_filter_param { - struct device_node *of_node; unsigned int chan_id; }; static bool mmp_tdma_filter_fn(struct dma_chan *chan, void *fn_param) { struct mmp_tdma_filter_param *param = fn_param; - struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan); - struct dma_device *pdma_device = tdmac->chan.device; - - if (pdma_device->dev->of_node != param->of_node) - return false; if (chan->chan_id != param->chan_id) return false; @@ -615,13 +609,13 @@ static struct dma_chan *mmp_tdma_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 >= TDMA_CHANNEL_NUM) return NULL; - return dma_request_channel(mask, mmp_tdma_filter_fn, ¶m); + return __dma_request_channel(&mask, mmp_tdma_filter_fn, ¶m, + ofdma->of_node); } static const struct of_device_id mmp_tdma_dt_ids[] = { |