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Subject[PATCH 01/22] ASoC: dmaengine: Improve of_node test in dmaengine_pcm_request_chan_of()
Date
Currently when of_node of the "PCM" device is null
dmaengine_pcm_request_chan_of() function will bail out, including cases
when custom DMA device is intended to be used. To have the channels
properly requested when custom DMA device is provided extend the of_node
test to also consider dma_dev->of_node.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
---
sound/soc/soc-generic-dmaengine-pcm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 30e791a53352..6d7638c1233d 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -415,7 +415,8 @@ static int dmaengine_pcm_request_chan_of(struct dmaengine_pcm *pcm,

if ((pcm->flags & (SND_DMAENGINE_PCM_FLAG_NO_DT |
SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME)) ||
- !dev->of_node)
+ (!dev->of_node && !(config && config->dma_dev &&
+ config->dma_dev->of_node)))
return 0;

if (config && config->dma_dev) {
--
2.20.1
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