The "convert-xxx" properties only have an effect for DPCM DAI links.
A DAI link is only created as DPCM if the device tree requires it;
part of this involves checking for the use of "convert-xxx" properties.
When the convert-sample-format property was added, the checks got out
of sync. A DAI link that specified only convert-sample-format but did
not pass any of the other DPCM checks would not go into DPCM mode and
the convert-sample-format property would be silently ignored.
Fix this by adding a function to do the "convert-xxx" property checks,
instead of open-coding it in simple-card and audio-graph-card. And add
"convert-sample-format" to the check function so that DAI links using
it will be initialized correctly.
Fixes: 047a05366f4b ("ASoC: simple-card-utils: Fixup DAI sample format")
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@xxxxxxxxx>
---
include/sound/simple_card_utils.h | 1 +
sound/soc/generic/audio-graph-card.c | 2 +-
sound/soc/generic/simple-card-utils.c | 15 +++++++++++++++
sound/soc/generic/simple-card.c | 3 +--
4 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h
index a0b827f0c2f6..cfed741e0181 100644
--- a/include/sound/simple_card_utils.h
+++ b/include/sound/simple_card_utils.h
@@ -177,6 +177,7 @@ void asoc_simple_convert_fixup(struct asoc_simple_data *data,
struct snd_pcm_hw_params *params);
void asoc_simple_parse_convert(struct device_node *np, char *prefix,
struct asoc_simple_data *data);
+bool asoc_simple_convert_is_required(const struct asoc_simple_data *data);
int asoc_simple_parse_routing(struct snd_soc_card *card,
char *prefix);
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index b327372f2e4a..7804625b131e 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -417,7 +417,7 @@ static inline bool parse_as_dpcm_link(struct asoc_simple_priv *priv,
* or has convert-xxx property
*/
if ((of_get_child_count(codec_port) > 1) ||
- (adata->convert_rate || adata->convert_channels))
+ asoc_simple_convert_is_required(adata))
return true;
return false;
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index bef16833c487..7a708be24656 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -85,6 +85,21 @@ void asoc_simple_parse_convert(struct device_node *np,
}
EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
+/**
+ * asoc_simple_convert_is_required() - Query if HW param conversion was requested
+ * @data: Link data.
+ *
+ * Returns true if any HW param conversion was requested for this DAI link with
+ * any "convert-xxx" properties.
+ */
+bool asoc_simple_convert_is_required(const struct asoc_simple_data *data)
+{
+ return data->convert_rate ||
+ data->convert_channels ||
+ data->convert_sample_format;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_convert_is_required);
+
int asoc_simple_parse_daifmt(struct device *dev,
struct device_node *node,
struct device_node *codec,
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 78419e18717d..675991cdee87 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -393,8 +393,7 @@ static int __simple_for_each_link(struct asoc_simple_priv *priv,
* or has convert-xxx property
*/
if (dpcm_selectable &&
- (num > 2 ||
- adata.convert_rate || adata.convert_channels)) {
+ (num > 2 || asoc_simple_convert_is_required(&adata))) {
/*
* np
* |1(CPU)|0(Codec) li->cpu
--
2.38.0
