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dmaengine: imx-sdma: Let the core do the device node validation

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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>
This commit is contained in:
Baolin Wang 2019-05-20 19:32:16 +08:00 committed by Vinod Koul
parent 37c0afeb41
commit 990c0b53bf
2 changed files with 2 additions and 8 deletions
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9
drivers/dma/imx-sdma.c
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@ -1934,16 +1934,11 @@ static int sdma_init(struct sdma_engine *sdma)
static bool sdma_filter_fn(struct dma_chan *chan, void *fn_param)
{
struct sdma_channel *sdmac = to_sdma_chan(chan);
struct sdma_engine *sdma = sdmac->sdma;
struct imx_dma_data *data = fn_param;
if (!imx_dma_is_general_purpose(chan))
return false;
/* return false if it's not the right device */
if (sdma->dev->of_node != data->of_node)
return false;
sdmac->data = *data;
chan->private = &sdmac->data;
@ -1971,9 +1966,9 @@ static struct dma_chan *sdma_xlate(struct of_phandle_args *dma_spec,
* be set to sdmac->event_id1.
*/
data.dma_request2 = 0;
data.of_node = ofdma->of_node;
return dma_request_channel(mask, sdma_filter_fn, &data);
return __dma_request_channel(&mask, sdma_filter_fn, &data,
ofdma->of_node);
}
static int sdma_probe(struct platform_device *pdev)

1
include/linux/platform_data/dma-imx.h
View File

@ -55,7 +55,6 @@ struct imx_dma_data {
int dma_request2; /* secondary DMA request line */
enum sdma_peripheral_type peripheral_type;
int priority;
struct device_node *of_node;
};
static inline int imx_dma_is_ipu(struct dma_chan *chan)