Let the DMA engine core do the device node validation instead of drivers.
Signed-off-by: Baolin Wang <baolin.w...@linaro.org>
---
drivers/dma/sh/rcar-dmac.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 2b4f256..9474d5b 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1632,8 +1632,7 @@ static bool rcar_dmac_chan_filter(struct dma_chan *chan,
void *arg)
* Forcing it to call dma_request_channel() and iterate through all
* channels from all controllers is just pointless.
*/
- if (chan->device->device_config != rcar_dmac_device_config ||
- dma_spec->np != chan->device->dev->of_node)
+ if (chan->device->device_config != rcar_dmac_device_config)
return false;
return !test_and_set_bit(dma_spec->args[0], dmac->modules);
@@ -1653,7 +1652,8 @@ static struct dma_chan *rcar_dmac_of_xlate(struct
of_phandle_args *dma_spec,
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
- chan = dma_request_channel(mask, rcar_dmac_chan_filter, dma_spec);
+ chan = __dma_request_channel(&mask, rcar_dmac_chan_filter, dma_spec,
+ ofdma->of_node);
if (!chan)
return NULL;
--
1.7.9.5
