[PATCH] ASoC: soc-pcm: fix hw->formats cleared by soc_pcm_hw_init() for dpcm

[Shengjiu Wang]

The hw->formats may be set by snd_dmaengine_pcm_refine_runtime_hwparams()
in component's startup()/open(), but soc_pcm_hw_init() will init
hw->formats in dpcm_runtime_setup_fe() after component's startup()/open(),
which causes the valuable hw->formats to be cleared.

So need to store the hw->formats before initialization, then restore
it after initialization.

Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
---
 sound/soc/soc-pcm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 5eb056b942ce..7958c9defd49 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1661,10 +1661,14 @@ static void dpcm_runtime_setup_fe(struct snd_pcm_substream *substream)
 	struct snd_pcm_hardware *hw = &runtime->hw;
 	struct snd_soc_dai *dai;
 	int stream = substream->stream;
+	u64 formats = hw->formats;
 	int i;
 
 	soc_pcm_hw_init(hw);
 
+	if (formats)
+		hw->formats &= formats;
+
 	for_each_rtd_cpu_dais(fe, i, dai) {
 		struct snd_soc_pcm_stream *cpu_stream;
 
-- 
2.34.1