From caf5e3e6e14d0b7df5c404683ff5d4fce4733a99 Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Mon, 20 May 2019 19:32:19 +0800 Subject: 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 Signed-off-by: Vinod Koul --- drivers/dma/mxs-dma.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers/dma/mxs-dma.c') 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, ¶m); + return __dma_request_channel(&mask, mxs_dma_filter_fn, ¶m, + ofdma->of_node); } static int __init mxs_dma_probe(struct platform_device *pdev) -- cgit v1.2.3