From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 26 Oct 2015 08:40:02 +0000 (+0000)
Subject: ASoC: rsnd: remove all modules when PIO fallback
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=48d582819fdc38cda1aeb17f26cfe586d3900f2f;p=linux-beck.git

ASoC: rsnd: remove all modules when PIO fallback

Current Renesas sound is supporting PIO fallback if it can't use DMA.
In such case, it should remove all attached modules, but current driver
is missing about CTU/MIX. Because current implement requests
specific mod for remove.
To avoid same things in future, this patch removes all mods,
and re-connects SSI when PIO fallback case.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index d7d2a59d0553..b6fc0d86c03d 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -590,20 +590,6 @@ static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
 	ret;							\
 })
 
-#define rsnd_path_remove(priv, io, _type)			\
-{								\
-	struct rsnd_mod *mod;					\
-	int id = -1;						\
-								\
-	if (rsnd_is_enable_path(io, _type)) {			\
-		id = rsnd_info_id(priv, io, _type);		\
-		if (id >= 0) {					\
-			mod = rsnd_##_type##_mod_get(priv, id);	\
-			rsnd_dai_disconnect(mod, io, mod->type);\
-		}						\
-	}							\
-}
-
 void rsnd_path_parse(struct rsnd_priv *priv,
 		     struct rsnd_dai_stream *io)
 {
@@ -1163,6 +1149,9 @@ static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
 
 	ret = rsnd_dai_call(probe, io, priv);
 	if (ret == -EAGAIN) {
+		struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
+		int i;
+
 		/*
 		 * Fallback to PIO mode
 		 */
@@ -1177,10 +1166,12 @@ static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
 		rsnd_dai_call(remove, io, priv);
 
 		/*
-		 * remove SRC/DVC from DAI,
+		 * remove all mod from io
+		 * and, re connect ssi
 		 */
-		rsnd_path_remove(priv, io, src);
-		rsnd_path_remove(priv, io, dvc);
+		for (i = 0; i < RSND_MOD_MAX; i++)
+			rsnd_dai_disconnect((io)->mod[i], io, i);
+		rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
 
 		/*
 		 * fallback