Merge series "ASoC: add soc-link" from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

Hi Mark

Current ALSA SoC is handling dai_link related operation,
but it is implmemented directly without using function/macro,
and at random place.

This v4 patch-set creates new snd_soc_link_xxx() functions
which handles dai_link related operation,
and implmement these at new soc-link.c.

v3 -> v4

	- add Reviewed-by from Ranjani and Pierre-Louis
	- fix bisection error at [2/7]

v2 -> v3

	- add missing #include <sound/soc-link.h> in soc-link.c

v1 -> v2
	- #include <sound/soc-link.h> is added on each c source file
	  instead of soc.h
	- not have extra error message after snd_soc_link_xxx(),
	  because it already indicate it via snc_link_ret()
	- snd_soc_link_compr_xxx() doesn't have rtd parameter,
	  because it can be created from cstream

Link: https://lore.kernel.org/r/87lflk4yk3.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/874ksa59wc.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/877dx868op.wl-kuninori.morimoto.gx@renesas.com

Kuninori Morimoto (7):
  ASoC: add soc-link.c
  ASoC: soc-link: move soc_rtd_xxx()
  ASoC: soc-link: remove unneeded parameter from snd_soc_link_xxx()
  ASoC: soc-link: add snd_soc_link_be_hw_params_fixup()
  ASoC: soc-link: add snd_soc_link_compr_startup()
  ASoC: soc-link: add snd_soc_link_compr_shutdown()
  ASoC: soc-link: add snd_soc_link_compr_set_params()

 include/sound/soc-link.h |  27 +++++++
 sound/soc/Makefile       |   2 +-
 sound/soc/soc-compress.c |  46 ++++--------
 sound/soc/soc-core.c     |  18 ++---
 sound/soc/soc-dai.c      |   9 ++-
 sound/soc/soc-link.c     | 150 +++++++++++++++++++++++++++++++++++++++
 sound/soc/soc-pcm.c      |  86 ++++------------------
 7 files changed, 219 insertions(+), 119 deletions(-)
 create mode 100644 include/sound/soc-link.h
 create mode 100644 sound/soc/soc-link.c

--
2.17.1

Thank you for your help !!

Best regards
---
Kuninori Morimoto

include/sound/soc-link.h

+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * soc-link.h
+ *
+ * Copyright (C) 2019 Renesas Electronics Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ */
+#ifndef __SOC_LINK_H
+#define __SOC_LINK_H
+
+int snd_soc_link_init(struct snd_soc_pcm_runtime *rtd);
+int snd_soc_link_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+				    struct snd_pcm_hw_params *params);
+
+int snd_soc_link_startup(struct snd_pcm_substream *substream);
+void snd_soc_link_shutdown(struct snd_pcm_substream *substream);
+int snd_soc_link_prepare(struct snd_pcm_substream *substream);
+int snd_soc_link_hw_params(struct snd_pcm_substream *substream,
+			   struct snd_pcm_hw_params *params);
+void snd_soc_link_hw_free(struct snd_pcm_substream *substream);
+int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd);
+
+int snd_soc_link_compr_startup(struct snd_compr_stream *cstream);
+void snd_soc_link_compr_shutdown(struct snd_compr_stream *cstream);
+int snd_soc_link_compr_set_params(struct snd_compr_stream *cstream);
+
+#endif /* __SOC_LINK_H */

sound/soc/Makefile

 # 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),)

sound/soc/soc-compress.c

@@ -19,6 +19,7 @@
 #include <sound/soc.h>
 #include <sound/initval.h>
 #include <sound/soc-dpcm.h>
+#include <sound/soc-link.h>
 #include <linux/pm_runtime.h>
 
 static int soc_compr_components_open(struct snd_compr_stream *cstream,
@@ -95,15 +96,9 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 	if (ret < 0)
 		goto machine_err;
 
-	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) {
-		ret = rtd->dai_link->compr_ops->startup(cstream);
-		if (ret < 0) {
-			dev_err(rtd->dev,
-				"Compress ASoC: %s startup failed: %d\n",
-				rtd->dai_link->name, ret);
+	ret = snd_soc_link_compr_startup(cstream);
+	if (ret < 0)
 		goto machine_err;
-		}
-	}
 
 	snd_soc_runtime_activate(rtd, cstream->direction);
 
@@ -179,14 +174,9 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	if (ret < 0)
 		goto open_err;
 
-	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) {
-		ret = fe->dai_link->compr_ops->startup(cstream);
-		if (ret < 0) {
-			pr_err("Compress ASoC: %s startup failed: %d\n",
-			       fe->dai_link->name, ret);
+	ret = snd_soc_link_compr_startup(cstream);
+	if (ret < 0)
 		goto machine_err;
-		}
-	}
 
 	dpcm_clear_pending_state(fe, stream);
 	dpcm_path_put(&list);
@@ -237,8 +227,7 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 	if (!snd_soc_dai_active(codec_dai))
 		codec_dai->rate = 0;
 
-	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown)
-		rtd->dai_link->compr_ops->shutdown(cstream);
+	snd_soc_link_compr_shutdown(cstream);
 
 	soc_compr_components_free(cstream, NULL);
 
@@ -293,8 +282,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)
 
 	fe->dpcm[stream].runtime = NULL;
 
-	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
-		fe->dai_link->compr_ops->shutdown(cstream);
+	snd_soc_link_compr_shutdown(cstream);
 
 	soc_compr_components_free(cstream, NULL);
 
@@ -451,11 +439,9 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 	if (ret < 0)
 		goto err;
 
-	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) {
-		ret = rtd->dai_link->compr_ops->set_params(cstream);
+	ret = snd_soc_link_compr_set_params(cstream);
 	if (ret < 0)
 		goto err;
-	}
 
 	if (cstream->direction == SND_COMPRESS_PLAYBACK)
 		snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
@@ -519,11 +505,9 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
 	if (ret < 0)
 		goto out;
 
-	if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) {
-		ret = fe->dai_link->compr_ops->set_params(cstream);
+	ret = snd_soc_link_compr_set_params(cstream);
 	if (ret < 0)
 		goto out;
-	}
 
 	dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START);
 	fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;

sound/soc/soc-core.c

@@ -38,6 +38,7 @@
 #include <sound/soc.h>
 #include <sound/soc-dpcm.h>
 #include <sound/soc-topology.h>
+#include <sound/soc-link.h>
 #include <sound/initval.h>
 
 #define CREATE_TRACE_POINTS
@@ -1049,14 +1050,9 @@ 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);
+	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);
@@ -1660,7 +1656,11 @@ static void soc_check_tplg_fes(struct snd_soc_card *card)
 			dai_link->dpcm_playback = 1;
 			dai_link->dpcm_capture = 1;
 
-			/* override any BE fixups */
+			/*
+			 * override any BE fixups
+			 * see
+			 *	snd_soc_link_be_hw_params_fixup()
+			 */
 			dai_link->be_hw_params_fixup =
 				component->driver->be_hw_params_fixup;
 

sound/soc/soc-dai.c

@@ -8,6 +8,7 @@
 
 #include <sound/soc.h>
 #include <sound/soc-dai.h>
+#include <sound/soc-link.h>
 
 #define soc_dai_ret(dai, ret) _soc_dai_ret(dai, __func__, ret)
 static inline int _soc_dai_ret(struct snd_soc_dai *dai,
@@ -313,11 +314,9 @@ int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
 	int ret = 0;
 
 	/* perform any topology hw_params fixups before DAI  */
-	if (rtd->dai_link->be_hw_params_fixup) {
-		ret = rtd->dai_link->be_hw_params_fixup(rtd, params);
+	ret = snd_soc_link_be_hw_params_fixup(rtd, params);
 	if (ret < 0)
 		goto end;
-	}
 
 	if (dai->driver->ops &&
 	    dai->driver->ops->hw_params)

sound/soc/soc-link.c

+// SPDX-License-Identifier: GPL-2.0
+//
+// soc-link.c
+//
+// Copyright (C) 2019 Renesas Electronics Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+#include <sound/soc.h>
+#include <sound/soc-link.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);
+}
+
+int snd_soc_link_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+				    struct snd_pcm_hw_params *params)
+{
+	int ret = 0;
+
+	if (rtd->dai_link->be_hw_params_fixup)
+		ret = rtd->dai_link->be_hw_params_fixup(rtd, params);
+
+	return soc_link_ret(rtd, ret);
+}
+
+int snd_soc_link_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->startup)
+		ret = rtd->dai_link->ops->startup(substream);
+
+	return soc_link_ret(rtd, ret);
+}
+
+void snd_soc_link_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->shutdown)
+		rtd->dai_link->ops->shutdown(substream);
+}
+
+int snd_soc_link_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->prepare)
+		ret = rtd->dai_link->ops->prepare(substream);
+
+	return soc_link_ret(rtd, ret);
+}
+
+int snd_soc_link_hw_params(struct snd_pcm_substream *substream,
+			   struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->hw_params)
+		ret = rtd->dai_link->ops->hw_params(substream, params);
+
+	return soc_link_ret(rtd, ret);
+}
+
+void snd_soc_link_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->hw_free)
+		rtd->dai_link->ops->hw_free(substream);
+}
+
+int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->ops &&
+	    rtd->dai_link->ops->trigger)
+		ret = rtd->dai_link->ops->trigger(substream, cmd);
+
+	return soc_link_ret(rtd, ret);
+}
+
+int snd_soc_link_compr_startup(struct snd_compr_stream *cstream)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->compr_ops &&
+	    rtd->dai_link->compr_ops->startup)
+		ret = rtd->dai_link->compr_ops->startup(cstream);
+
+	return soc_link_ret(rtd, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_link_compr_startup);
+
+void snd_soc_link_compr_shutdown(struct snd_compr_stream *cstream)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+
+	if (rtd->dai_link->compr_ops &&
+	    rtd->dai_link->compr_ops->shutdown)
+		rtd->dai_link->compr_ops->shutdown(cstream);
+}
+EXPORT_SYMBOL_GPL(snd_soc_link_compr_shutdown);
+
+int snd_soc_link_compr_set_params(struct snd_compr_stream *cstream)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	int ret = 0;
+
+	if (rtd->dai_link->compr_ops &&
+	    rtd->dai_link->compr_ops->set_params)
+		ret = rtd->dai_link->compr_ops->set_params(cstream);
+
+	return soc_link_ret(rtd, ret);
+}
+EXPORT_SYMBOL_GPL(snd_soc_link_compr_set_params);

sound/soc/soc-pcm.c

@@ -24,6 +24,7 @@
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #include <sound/soc-dpcm.h>
+#include <sound/soc-link.h>
 #include <sound/initval.h>
 
 #define DPCM_MAX_BE_USERS	8
@@ -202,60 +203,6 @@ static inline void dpcm_remove_debugfs_state(struct snd_soc_dpcm *dpcm)
 }
 #endif
 
-static int soc_rtd_startup(struct snd_soc_pcm_runtime *rtd,
-			   struct snd_pcm_substream *substream)
-{
-	if (rtd->dai_link->ops &&
-	    rtd->dai_link->ops->startup)
-		return rtd->dai_link->ops->startup(substream);
-	return 0;
-}
-
-static void soc_rtd_shutdown(struct snd_soc_pcm_runtime *rtd,
-			     struct snd_pcm_substream *substream)
-{
-	if (rtd->dai_link->ops &&
-	    rtd->dai_link->ops->shutdown)
-		rtd->dai_link->ops->shutdown(substream);
-}
-
-static int soc_rtd_prepare(struct snd_soc_pcm_runtime *rtd,
-			   struct snd_pcm_substream *substream)
-{
-	if (rtd->dai_link->ops &&
-	    rtd->dai_link->ops->prepare)
-		return rtd->dai_link->ops->prepare(substream);
-	return 0;
-}
-
-static int soc_rtd_hw_params(struct snd_soc_pcm_runtime *rtd,
-			     struct snd_pcm_substream *substream,
-			     struct snd_pcm_hw_params *params)
-{
-	if (rtd->dai_link->ops &&
-	    rtd->dai_link->ops->hw_params)
-		return rtd->dai_link->ops->hw_params(substream, params);
-	return 0;
-}
-
-static void soc_rtd_hw_free(struct snd_soc_pcm_runtime *rtd,
-			    struct snd_pcm_substream *substream)
-{
-	if (rtd->dai_link->ops &&
-	    rtd->dai_link->ops->hw_free)
-		rtd->dai_link->ops->hw_free(substream);
-}
-
-static int soc_rtd_trigger(struct snd_soc_pcm_runtime *rtd,
-			   struct snd_pcm_substream *substream,
-			   int cmd)
-{
-	if (rtd->dai_link->ops &&
-	    rtd->dai_link->ops->trigger)
-		return rtd->dai_link->ops->trigger(substream, cmd);
-	return 0;
-}
-
 /**
  * snd_soc_runtime_action() - Increment/Decrement active count for
  * PCM runtime components
@@ -736,7 +683,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 	for_each_rtd_dais(rtd, i, dai)
 		snd_soc_dai_shutdown(dai, substream);
 
-	soc_rtd_shutdown(rtd, substream);
+	snd_soc_link_shutdown(substream);
 
 	soc_pcm_components_close(substream);
 
@@ -783,12 +730,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 	if (ret < 0)
 		goto component_err;
 
-	ret = soc_rtd_startup(rtd, substream);
-	if (ret < 0) {
-		pr_err("ASoC: %s startup failed: %d\n",
-		       rtd->dai_link->name, ret);
+	ret = snd_soc_link_startup(substream);
+	if (ret < 0)
 		goto rtd_startup_err;
-	}
 
 	/* startup the audio subsystem */
 	for_each_rtd_dais(rtd, i, dai) {
@@ -870,7 +814,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 	for_each_rtd_dais(rtd, i, dai)
 		snd_soc_dai_shutdown(dai, substream);
 
-	soc_rtd_shutdown(rtd, substream);
+	snd_soc_link_shutdown(substream);
 rtd_startup_err:
 	soc_pcm_components_close(substream);
 component_err:
@@ -912,12 +856,9 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 
 	mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
 
-	ret = soc_rtd_prepare(rtd, substream);
-	if (ret < 0) {
-		dev_err(rtd->card->dev,
-			"ASoC: machine prepare error: %d\n", ret);
+	ret = snd_soc_link_prepare(substream);
+	if (ret < 0)
 		goto out;
-	}
 
 	for_each_rtd_components(rtd, i, component) {
 		ret = snd_soc_component_prepare(component, substream);
@@ -1002,12 +943,9 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 	if (ret)
 		goto out;
 
-	ret = soc_rtd_hw_params(rtd, substream, params);
-	if (ret < 0) {
-		dev_err(rtd->card->dev,
-			"ASoC: machine hw_params failed: %d\n", ret);
+	ret = snd_soc_link_hw_params(substream, params);
+	if (ret < 0)
 		goto out;
-	}
 
 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
 		struct snd_pcm_hw_params codec_params;
@@ -1117,7 +1055,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 		codec_dai->rate = 0;
 	}
 
-	soc_rtd_hw_free(rtd, substream);
+	snd_soc_link_hw_free(substream);
 
 	mutex_unlock(&rtd->card->pcm_mutex);
 	return ret;
@@ -1149,7 +1087,7 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 	}
 
 	/* free any machine hw params */
-	soc_rtd_hw_free(rtd, substream);
+	snd_soc_link_hw_free(substream);
 
 	/* free any component resources */
 	soc_pcm_components_hw_free(substream, NULL);
@@ -1172,7 +1110,7 @@ static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd)
 	struct snd_soc_component *component;
 	int i, ret;
 
-	ret = soc_rtd_trigger(rtd, substream, cmd);
+	ret = snd_soc_link_trigger(substream, cmd);
 	if (ret < 0)
 		return ret;
 
@@ -1201,7 +1139,7 @@ static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd)
 			return ret;
 	}
 
-	ret = soc_rtd_trigger(rtd, substream, cmd);
+	ret = snd_soc_link_trigger(substream, cmd);
 	if (ret < 0)
 		return ret;
 
@@ -2141,16 +2079,9 @@ int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream)
 				sizeof(struct snd_pcm_hw_params));
 
 		/* perform any hw_params fixups */
-		if (be->dai_link->be_hw_params_fixup) {
-			ret = be->dai_link->be_hw_params_fixup(be,
-					&dpcm->hw_params);
-			if (ret < 0) {
-				dev_err(be->dev,
-					"ASoC: hw_params BE fixup failed %d\n",
-					ret);
+		ret = snd_soc_link_be_hw_params_fixup(be, &dpcm->hw_params);
+		if (ret < 0)
 			goto unwind;
-			}
-		}
 
 		/* copy the fixed-up hw params for BE dai */
 		memcpy(&be->dpcm[stream].hw_params, &dpcm->hw_params,