Merge series "ASoC: soc-pcm: ignore dummy-DAI at soc_pcm_params_symmetry()" from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

Hi Mark

I noticed if we have...

	1) Sound Card used DPCM
	2) It exchanges rate to 48kHz by using .be_hw_params_fixup()
	3) Codec had symmetric_rate = 1

We will get below error.
I didn't confirm, but maybe same things happen
if it exchanged channels/sample_bits.

	# aplay 44100.wav
	# aplay 44100.wav
=>	[kernel] be.ak4613-hifi: ASoC: unmatched rate symmetry: snd-soc-dummy-dai:44100 - soc_pcm_params_symmetry:48000
	[kernel] be.ak4613-hifi: ASoC: hw_params BE failed -22
	[kernel] fe.rsnd-dai.0: ASoC: hw_params BE failed -22
	aplay: set_params:1407: Unable to install hw params:
	ACCESS:  RW_INTERLEAVED
	FORMAT:  S16_LE
	SUBFORMAT:  STD
	SAMPLE_BITS: 16
	FRAME_BITS: 32
	CHANNELS: 2
	RATE: 44100
	PERIOD_TIME: (23219 23220)
	PERIOD_SIZE: 1024
	PERIOD_BYTES: 4096
	PERIODS: 4
	BUFFER_TIME: (92879 92880)
	BUFFER_SIZE: 4096
	BUFFER_BYTES: 16384
	TICK_TIME: 0

This patch-set solves this issue.
patch 1) - 3) are just cleanup patches.
4) is fot this issue.

Link: https://lore.kernel.org/r/87a6q0z4xt.wl-kuninori.morimoto.gx@renesas.com

Kuninori Morimoto (4):
  ASoC: soc-pcm: don't use "name" on __soc_pcm_params_symmetry() macro
  ASoC: soc-pcm: indicate DAI name if soc_pcm_params_symmetry() failed
  ASoC: soc-utils: add snd_soc_component_is_dummy()
  ASoC: soc-pcm: ignore dummy-DAI at soc_pcm_params_symmetry()

 include/sound/soc-component.h |  1 +
 sound/soc/soc-core.c          |  2 +-
 sound/soc/soc-pcm.c           | 14 ++++++++------
 sound/soc/soc-utils.c         |  6 ++++++
 4 files changed, 16 insertions(+), 7 deletions(-)

--
2.25.1

3 files changed, 15 insertions, 7 deletions

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 56bda3b9f691..80374c82c501 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1169,7 +1169,7 @@ static int soc_probe_component(struct snd_soc_card *card,
 	int probed = 0;
 	int ret;
 
-	if (!strcmp(component->name, "snd-soc-dummy"))
+	if (snd_soc_component_is_dummy(component))
 		return 0;
 
 	if (component->card) {
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 02968a4e52b4..8659089a87a0 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -384,18 +384,20 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
 	struct snd_soc_dai *cpu_dai;
 	unsigned int symmetry, i;
 
+	d.name = __func__;
 	soc_pcm_set_dai_params(&d, params);
 
-#define __soc_pcm_params_symmetry(name)					\
-	symmetry = rtd->dai_link->symmetric_##name;			\
+#define __soc_pcm_params_symmetry(xxx)					\
+	symmetry = rtd->dai_link->symmetric_##xxx;			\
 	for_each_rtd_dais(rtd, i, dai)					\
-		symmetry |= dai->driver->symmetric_##name;		\
+		symmetry |= dai->driver->symmetric_##xxx;		\
 									\
 	if (symmetry)							\
 		for_each_rtd_cpu_dais(rtd, i, cpu_dai)			\
-			if (cpu_dai->name && cpu_dai->name != d.name) {	\
-				dev_err(rtd->dev, "ASoC: unmatched %s symmetry: %d - %d\n", \
-					#name, cpu_dai->name, d.name);	\
+			if (!snd_soc_dai_is_dummy(cpu_dai) &&		\
+			    cpu_dai->xxx && cpu_dai->xxx != d.xxx) {	\
+				dev_err(rtd->dev, "ASoC: unmatched %s symmetry: %s:%d - %s:%d\n", \
+					#xxx, cpu_dai->name, cpu_dai->xxx, d.name, d.xxx); \
 				return -EINVAL;				\
 			}
 
diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c
index f27f94ca064b..98383fd76224 100644
--- a/sound/soc/soc-utils.c
+++ b/sound/soc/soc-utils.c
@@ -131,6 +131,12 @@ int snd_soc_dai_is_dummy(struct snd_soc_dai *dai)
 	return 0;
 }
 
+int snd_soc_component_is_dummy(struct snd_soc_component *component)
+{
+	return ((component->driver == &dummy_platform) ||
+		(component->driver == &dummy_codec));
+}
+
 static int snd_soc_dummy_probe(struct platform_device *pdev)
 {
 	int ret;