[PATCH v2] ASoC: soc-pcm: fix hw param limits calculation for multi-DAI

[Kai Vehmanen]

In case DPCM runtime has multiple CPU DAIs, dpcm_init_runtime_hw() is
called multiple times, once for each CPU DAI. This will lead to
ignoring hw limits of all but the last DAI.

Fix this by moving soc_pcm_hw_init() up by one level to
dpcm_init_runtime_hw().

Fixes: 140f553d1298 ("ASoC: soc-pcm: fix hwparams min/max init for dpcm")
Suggested-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>
---
 sound/soc/soc-pcm.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

v2 changes:
 - fixed incorrect text in commit message, no functional change

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 37094aeff440..14d85ca1e435 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1531,10 +1531,12 @@ static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime,
 {
 	struct snd_pcm_hardware *hw = &runtime->hw;
 
-	soc_pcm_hw_init(hw);
 	soc_pcm_hw_update_rate(hw, stream);
 	soc_pcm_hw_update_chan(hw, stream);
-	soc_pcm_hw_update_format(hw, stream);
+	if (runtime->hw.formats)
+		runtime->hw.formats &= stream->formats;
+	else
+		runtime->hw.formats = stream->formats;
 }
 
 static void dpcm_runtime_merge_format(struct snd_pcm_substream *substream,
@@ -1662,10 +1664,13 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream,
 static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_pcm_hardware *hw = &runtime->hw;
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct snd_soc_dai *cpu_dai;
 	int i;
 
+	soc_pcm_hw_init(hw);
+
 	for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
 		/*
 		 * Skip CPUs which don't support the current stream

base-commit: 140f553d1298e0ddbe21983efe5789fe8b484273
-- 
2.29.2