[PATCH 1/7] ASoC: add soc-link.c

[Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>]

From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>

Current ALSA SoC has many dai_link->xxx() functions.
But, it is implemented randomly at random place.

This patch creates new soc-link.c to collect dai_link related
operation into it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
 include/sound/soc-link.h | 13 +++++++++++++
 include/sound/soc.h      |  1 +
 sound/soc/Makefile       |  2 +-
 sound/soc/soc-core.c     | 11 +++--------
 sound/soc/soc-link.c     | 36 ++++++++++++++++++++++++++++++++++++
 5 files changed, 54 insertions(+), 9 deletions(-)
 create mode 100644 include/sound/soc-link.h
 create mode 100644 sound/soc/soc-link.c

diff --git a/include/sound/soc-link.h b/include/sound/soc-link.h
new file mode 100644
index 000000000000..7fc5cead5942
--- /dev/null
+++ b/include/sound/soc-link.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * soc-link.h
+ *
+ * Copyright (C) 2019 Renesas Electronics Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
+ */
+#ifndef __SOC_LINK_H
+#define __SOC_LINK_H
+
+int snd_soc_link_init(struct snd_soc_pcm_runtime *rtd);
+
+#endif /* __SOC_LINK_H */
diff --git a/include/sound/soc.h b/include/sound/soc.h
index a7fa64260108..81d5337963ce 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1449,5 +1449,6 @@ static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm)
 }
 
 #include <sound/soc-component.h>
+#include <sound/soc-link.h>
 
 #endif
diff --git a/sound/soc/Makefile b/sound/soc/Makefile
index 861a21b79484..70a5f19ea3a1 100644
--- a/sound/soc/Makefile
+++ b/sound/soc/Makefile
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 snd-soc-core-objs := soc-core.o soc-dapm.o soc-jack.o soc-utils.o soc-dai.o soc-component.o
-snd-soc-core-objs += soc-pcm.o soc-io.o soc-devres.o soc-ops.o
+snd-soc-core-objs += soc-pcm.o soc-io.o soc-devres.o soc-ops.o soc-link.o
 snd-soc-core-$(CONFIG_SND_SOC_COMPRESS) += soc-compress.o
 
 ifneq ($(CONFIG_SND_SOC_TOPOLOGY),)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index e697258d2ffc..d5450e61626a 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1049,14 +1049,9 @@ static int soc_init_pcm_runtime(struct snd_soc_card *card,
 	rtd->pmdown_time = pmdown_time;
 
 	/* do machine specific initialization */
-	if (dai_link->init) {
-		ret = dai_link->init(rtd);
-		if (ret < 0) {
-			dev_err(card->dev, "ASoC: failed to init %s: %d\n",
-				dai_link->name, ret);
-			return ret;
-		}
-	}
+	ret = snd_soc_link_init(rtd);
+	if (ret < 0)
+		return ret;
 
 	if (dai_link->dai_fmt) {
 		ret = snd_soc_runtime_set_dai_fmt(rtd, dai_link->dai_fmt);
diff --git a/sound/soc/soc-link.c b/sound/soc/soc-link.c
new file mode 100644
index 000000000000..4bdd8d0dd93a
--- /dev/null
+++ b/sound/soc/soc-link.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// soc-link.c
+//
+// Copyright (C) 2019 Renesas Electronics Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
+//
+#include <sound/soc.h>
+
+#define soc_link_ret(rtd, ret) _soc_link_ret(rtd, __func__, ret)
+static inline int _soc_link_ret(struct snd_soc_pcm_runtime *rtd,
+				const char *func, int ret)
+{
+	switch (ret) {
+	case -EPROBE_DEFER:
+	case -ENOTSUPP:
+	case 0:
+		break;
+	default:
+		dev_err(rtd->dev,
+			"ASoC: error at %s on %s: %d\n",
+			func, rtd->dai_link->name, ret);
+	}
+
+	return ret;
+}
+
+int snd_soc_link_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret = 0;
+
+	if (rtd->dai_link->init)
+		ret = rtd->dai_link->init(rtd);
+
+	return soc_link_ret(rtd, ret);
+}
-- 
2.17.1