linux-kernel - [PATCH 1/2] ASoC: simple-card-utils: Split simple_fixup_sample

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Date: Mon, 20 May 2024 11:49:01 +0000
From: Sameer Pujar <spujar@...dia.com>
To: <broonie@...nel.org>, <linux-sound@...r.kernel.org>,
	<alsa-devel@...a-project.org>
CC: <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<lgirdwood@...il.com>, <thierry.reding@...il.com>, <jonathanh@...dia.com>,
	<mkumard@...dia.com>, <spujar@...dia.com>
Subject: [PATCH 1/2] ASoC: simple-card-utils: Split simple_fixup_sample_fmt func

From: Mohan Kumar <mkumard@...dia.com>

Split the simple_fixup_sample_fmt() into two functions by adding
one more function named simple_util_get_sample_fmt() to return
the sample format value.

This is useful for drivers that wish to simply get the sample format
without setting the mask.

Signed-off-by: Mohan Kumar <mkumard@...dia.com>
Signed-off-by: Sameer Pujar <spujar@...dia.com>
---
 include/sound/simple_card_utils.h     |  2 ++
 sound/soc/generic/simple-card-utils.c | 26 ++++++++++++++++++++------
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h
index ad67957b7b48..2c2279d082ec 100644
--- a/include/sound/simple_card_utils.h
+++ b/include/sound/simple_card_utils.h
@@ -174,6 +174,8 @@ void simple_util_parse_convert(struct device_node *np, char *prefix,
 			       struct simple_util_data *data);
 bool simple_util_is_convert_required(const struct simple_util_data *data);
 
+int simple_util_get_sample_fmt(struct simple_util_data *data);
+
 int simple_util_parse_routing(struct snd_soc_card *card,
 				      char *prefix);
 int simple_util_parse_widgets(struct snd_soc_card *card,
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index 81077d16d22f..f1f5a1c025fc 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -13,12 +13,11 @@
 #include <sound/pcm_params.h>
 #include <sound/simple_card_utils.h>
 
-static void simple_fixup_sample_fmt(struct simple_util_data *data,
-					 struct snd_pcm_hw_params *params)
+int simple_util_get_sample_fmt(struct simple_util_data *data)
 {
 	int i;
-	struct snd_mask *mask = hw_param_mask(params,
-					      SNDRV_PCM_HW_PARAM_FORMAT);
+	int val = -EINVAL;
+
 	struct {
 		char *fmt;
 		u32 val;
@@ -33,11 +32,26 @@ static void simple_fixup_sample_fmt(struct simple_util_data *data,
 	for (i = 0; i < ARRAY_SIZE(of_sample_fmt_table); i++) {
 		if (!strcmp(data->convert_sample_format,
 			    of_sample_fmt_table[i].fmt)) {
-			snd_mask_none(mask);
-			snd_mask_set(mask, of_sample_fmt_table[i].val);
+			val = of_sample_fmt_table[i].val;
 			break;
 		}
 	}
+	return val;
+}
+EXPORT_SYMBOL_GPL(simple_util_get_sample_fmt);
+
+static void simple_fixup_sample_fmt(struct simple_util_data *data,
+				    struct snd_pcm_hw_params *params)
+{
+	int val;
+	struct snd_mask *mask = hw_param_mask(params,
+					      SNDRV_PCM_HW_PARAM_FORMAT);
+
+	val = simple_util_get_sample_fmt(data);
+	if (val >= 0) {
+		snd_mask_none(mask);
+		snd_mask_set(mask, val);
+	}
 }
 
 void simple_util_parse_convert(struct device_node *np,
-- 
2.45.1