[PATCH v2] ASoC: simple-card: Fix up checks for HW param fixups

[PATCH v2] ASoC: simple-card: Fix up checks for HW param fixups

[Aidan MacDonald]

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")
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
---
v2: Rename helper function to asoc_simple_is_convert_required() as
    suggested by Kuninori Morimoto.

 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..25e049f44178 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_is_convert_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..fe7cf972d44c 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_is_convert_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..be69bbc47f81 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_is_convert_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_is_convert_required(const struct asoc_simple_data *data)
+{
+	return data->convert_rate ||
+	       data->convert_channels ||
+	       data->convert_sample_format;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_is_convert_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..feb55b66239b 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_is_convert_required(&adata))) {
 				/*
 				 * np
 				 *	 |1(CPU)|0(Codec)  li->cpu
-- 
2.38.0

Re: [PATCH v2] ASoC: simple-card: Fix up checks for HW param fixups

[Sameer Pujar]

On 19-10-2022 06:53, Aidan MacDonald wrote:
> 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")
> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
> Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
> ---
> v2: Rename helper function to asoc_simple_is_convert_required() as
>      suggested by Kuninori Morimoto.
>
>   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(-)

Acked-by: Sameer Pujar <spujar@nvidia.com>

Re: [PATCH v2] ASoC: simple-card: Fix up checks for HW param fixups

[Mark Brown]

On Wed, 19 Oct 2022 02:23:02 +0100, Aidan MacDonald wrote:
> 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.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: simple-card: Fix up checks for HW param fixups
      commit: 32def55d237e8507d4eb8442628fc2e59a899ea0

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark