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[4.19.y-cip,1/5] ASoC: rsnd: merge .nolock_start and .prepare

Message ID 1574264071-16816-2-git-send-email-biju.das@bp.renesas.com (mailing list archive)
State Accepted
Delegated to: Nobuhiro Iwamatsu
Headers show
Series Audio SSIU BUSIF support | expand

Commit Message

Biju Das Nov. 20, 2019, 3:34 p.m. UTC 
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

commit 6ab6a2474e0dce02f71e92adb9778a168a8931f4 upstream.

Main purpose of .nolock_start is we need to call
some function without spinlock.
OTOH we have .prepare which main purpose is
called under atomic context.
Then, it is called without spinlock.

In summary, our main callback init/quit, and start/stop
are called under "atomic context and with spinlock".
And some function need to be called under
"non-atomic context or without spinlock".
Let's merge .nolock_start and prepare to be more clear code.
Then, let's rename nolock_stop to cleanup

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
---
 sound/soc/sh/rcar/core.c | 13 ++-----------
 sound/soc/sh/rcar/dma.c  | 20 ++++++++++----------
 sound/soc/sh/rcar/rsnd.h | 26 ++++++++++----------------
 3 files changed, 22 insertions(+), 37 deletions(-)
diff mbox series

Patch

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index f44ba16..def9e8b 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -876,12 +876,10 @@  static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
 				struct snd_soc_dai *dai)
 {
 	struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
-	struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
 	struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 	struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint;
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	unsigned int max_channels = rsnd_rdai_channels_get(rdai);
-	int ret;
 	int i;
 
 	rsnd_dai_stream_init(io, substream);
@@ -925,14 +923,7 @@  static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
 				    SNDRV_PCM_HW_PARAM_RATE, -1);
 	}
 
-	/*
-	 * call rsnd_dai_call without spinlock
-	 */
-	ret = rsnd_dai_call(nolock_start, io, priv);
-	if (ret < 0)
-		rsnd_dai_call(nolock_stop, io, priv);
-
-	return ret;
+	return 0;
 }
 
 static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
@@ -945,7 +936,7 @@  static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
 	/*
 	 * call rsnd_dai_call without spinlock
 	 */
-	rsnd_dai_call(nolock_stop, io, priv);
+	rsnd_dai_call(cleanup, io, priv);
 
 	rsnd_dai_stream_quit(io);
 }
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index f8b2f8e..b5f3bf8 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -106,9 +106,9 @@  static int rsnd_dmaen_stop(struct rsnd_mod *mod,
 	return 0;
 }
 
-static int rsnd_dmaen_nolock_stop(struct rsnd_mod *mod,
-				   struct rsnd_dai_stream *io,
-				   struct rsnd_priv *priv)
+static int rsnd_dmaen_cleanup(struct rsnd_mod *mod,
+			      struct rsnd_dai_stream *io,
+			      struct rsnd_priv *priv)
 {
 	struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
 	struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
@@ -116,7 +116,7 @@  static int rsnd_dmaen_nolock_stop(struct rsnd_mod *mod,
 	/*
 	 * DMAEngine release uses mutex lock.
 	 * Thus, it shouldn't be called under spinlock.
-	 * Let's call it under nolock_start
+	 * Let's call it under prepare
 	 */
 	if (dmaen->chan)
 		dma_release_channel(dmaen->chan);
@@ -126,9 +126,9 @@  static int rsnd_dmaen_nolock_stop(struct rsnd_mod *mod,
 	return 0;
 }
 
-static int rsnd_dmaen_nolock_start(struct rsnd_mod *mod,
-			    struct rsnd_dai_stream *io,
-			    struct rsnd_priv *priv)
+static int rsnd_dmaen_prepare(struct rsnd_mod *mod,
+			      struct rsnd_dai_stream *io,
+			      struct rsnd_priv *priv)
 {
 	struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
 	struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
@@ -142,7 +142,7 @@  static int rsnd_dmaen_nolock_start(struct rsnd_mod *mod,
 	/*
 	 * DMAEngine request uses mutex lock.
 	 * Thus, it shouldn't be called under spinlock.
-	 * Let's call it under nolock_start
+	 * Let's call it under prepare
 	 */
 	dmaen->chan = rsnd_dmaen_request_channel(io,
 						 dma->mod_from,
@@ -291,8 +291,8 @@  static int rsnd_dmaen_pointer(struct rsnd_mod *mod,
 
 static struct rsnd_mod_ops rsnd_dmaen_ops = {
 	.name	= "audmac",
-	.nolock_start = rsnd_dmaen_nolock_start,
-	.nolock_stop  = rsnd_dmaen_nolock_stop,
+	.prepare = rsnd_dmaen_prepare,
+	.cleanup = rsnd_dmaen_cleanup,
 	.start	= rsnd_dmaen_start,
 	.stop	= rsnd_dmaen_stop,
 	.pointer= rsnd_dmaen_pointer,
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 7a04b19..e857311 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -295,15 +295,12 @@  struct rsnd_mod_ops {
 	int (*fallback)(struct rsnd_mod *mod,
 			struct rsnd_dai_stream *io,
 			struct rsnd_priv *priv);
-	int (*nolock_start)(struct rsnd_mod *mod,
-		    struct rsnd_dai_stream *io,
-		    struct rsnd_priv *priv);
-	int (*nolock_stop)(struct rsnd_mod *mod,
-		    struct rsnd_dai_stream *io,
-		    struct rsnd_priv *priv);
 	int (*prepare)(struct rsnd_mod *mod,
 		       struct rsnd_dai_stream *io,
 		       struct rsnd_priv *priv);
+	int (*cleanup)(struct rsnd_mod *mod,
+		       struct rsnd_dai_stream *io,
+		       struct rsnd_priv *priv);
 };
 
 struct rsnd_dai_stream;
@@ -323,7 +320,7 @@  struct rsnd_mod {
  *
  * 0xH0000CBA
  *
- * A	0: nolock_start	1: nolock_stop
+ * A	0: prepare	1: cleanup
  * B	0: init		1: quit
  * C	0: start	1: stop
  *
@@ -335,8 +332,8 @@  struct rsnd_mod {
  * H	0: pointer
  * H	0: prepare
  */
-#define __rsnd_mod_shift_nolock_start	0
-#define __rsnd_mod_shift_nolock_stop	0
+#define __rsnd_mod_shift_prepare	0
+#define __rsnd_mod_shift_cleanup	0
 #define __rsnd_mod_shift_init		4
 #define __rsnd_mod_shift_quit		4
 #define __rsnd_mod_shift_start		8
@@ -348,12 +345,11 @@  struct rsnd_mod {
 #define __rsnd_mod_shift_fallback	28 /* always called */
 #define __rsnd_mod_shift_hw_params	28 /* always called */
 #define __rsnd_mod_shift_pointer	28 /* always called */
-#define __rsnd_mod_shift_prepare	28 /* always called */
 
 #define __rsnd_mod_add_probe		0
 #define __rsnd_mod_add_remove		0
-#define __rsnd_mod_add_nolock_start	 1
-#define __rsnd_mod_add_nolock_stop	-1
+#define __rsnd_mod_add_prepare		 1
+#define __rsnd_mod_add_cleanup		-1
 #define __rsnd_mod_add_init		 1
 #define __rsnd_mod_add_quit		-1
 #define __rsnd_mod_add_start		 1
@@ -363,10 +359,11 @@  struct rsnd_mod {
 #define __rsnd_mod_add_fallback		0
 #define __rsnd_mod_add_hw_params	0
 #define __rsnd_mod_add_pointer		0
-#define __rsnd_mod_add_prepare		0
 
 #define __rsnd_mod_call_probe		0
 #define __rsnd_mod_call_remove		0
+#define __rsnd_mod_call_prepare		0
+#define __rsnd_mod_call_cleanup		1
 #define __rsnd_mod_call_init		0
 #define __rsnd_mod_call_quit		1
 #define __rsnd_mod_call_start		0
@@ -376,9 +373,6 @@  struct rsnd_mod {
 #define __rsnd_mod_call_fallback	0
 #define __rsnd_mod_call_hw_params	0
 #define __rsnd_mod_call_pointer		0
-#define __rsnd_mod_call_nolock_start	0
-#define __rsnd_mod_call_nolock_stop	1
-#define __rsnd_mod_call_prepare		0
 
 #define rsnd_mod_to_priv(mod)	((mod)->priv)
 #define rsnd_mod_name(mod)	((mod)->ops->name)