Merge tag 'asoc-v4.15' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v4.15

The biggest thing this release has been the conversion of the AC98 bus
to the driver model, that's been a long time coming so thanks to Robert
Jarzmik for his dedication there.  Due to there being some AC97 MFD
there's a few fairly large changes in input and the MFD layer, mainly to
the wm97xx driver.

There's also some drivers/drm changes to support the new AMD Stoney
platform, these are shared with the DRM subsystem and should be being
merged via both.

Within the subsystem the overwhelming bulk of the changes is in the
Intel drivers which continue to need lots of cleanups and fixes, this
release they've also gained support for their open source firmware.
There's also some large changs in the core as Morimoto-san continues to
mirror operations into the component level in preparation for conversion
of drivers to that.

 - The AC97 bus has finally caught up with the driver model thanks to
   some dedicated and persistent work from Robert Jarzmik.
 - Continued work from Morimoto-san on moving us towards being able to
   use components for everything.
 - Lots of cleanups for the Intel platform code, including support for
   their open source audio firmware.
 - Support for scaling MCLK with sample rate in simple-card.
 - Support for AMD Stoney platform.

1 files changed, 50 insertions, 34 deletions

diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index 041ec1080d52..fd557abfe390 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -60,6 +60,14 @@ struct rsnd_dma_ctrl {
 #define rsnd_dma_to_dmaen(dma)	(&(dma)->dma.en)
 #define rsnd_dma_to_dmapp(dma)	(&(dma)->dma.pp)
 
+/* for DEBUG */
+static struct rsnd_mod_ops mem_ops = {
+	.name = "mem",
+};
+
+static struct rsnd_mod mem = {
+};
+
 /*
  *		Audio DMAC
  */
@@ -211,11 +219,9 @@ static int rsnd_dmaen_nolock_start(struct rsnd_mod *mod,
 						 dma->mod_from,
 						 dma->mod_to);
 	if (IS_ERR_OR_NULL(dmaen->chan)) {
-		int ret = PTR_ERR(dmaen->chan);
-
 		dmaen->chan = NULL;
 		dev_err(dev, "can't get dma channel\n");
-		return ret;
+		return -EIO;
 	}
 
 	return 0;
@@ -747,20 +753,22 @@ static void rsnd_dma_of_path(struct rsnd_mod *this,
 		rsnd_mod_name(this), rsnd_mod_id(this));
 	for (i = 0; i <= idx; i++) {
 		dev_dbg(dev, "  %s[%d]%s\n",
-		       rsnd_mod_name(mod[i]), rsnd_mod_id(mod[i]),
-		       (mod[i] == *mod_from) ? " from" :
-		       (mod[i] == *mod_to)   ? " to" : "");
+			rsnd_mod_name(mod[i] ? mod[i] : &mem),
+			rsnd_mod_id  (mod[i] ? mod[i] : &mem),
+			(mod[i] == *mod_from) ? " from" :
+			(mod[i] == *mod_to)   ? " to" : "");
 	}
 }
 
-int rsnd_dma_attach(struct rsnd_dai_stream *io, struct rsnd_mod *mod,
-		    struct rsnd_mod **dma_mod)
+static int rsnd_dma_alloc(struct rsnd_dai_stream *io, struct rsnd_mod *mod,
+			  struct rsnd_mod **dma_mod)
 {
 	struct rsnd_mod *mod_from = NULL;
 	struct rsnd_mod *mod_to = NULL;
 	struct rsnd_priv *priv = rsnd_io_to_priv(io);
 	struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
 	struct device *dev = rsnd_priv_to_dev(priv);
+	struct rsnd_dma *dma;
 	struct rsnd_mod_ops *ops;
 	enum rsnd_mod_type type;
 	int (*attach)(struct rsnd_dai_stream *io, struct rsnd_dma *dma,
@@ -800,40 +808,47 @@ int rsnd_dma_attach(struct rsnd_dai_stream *io, struct rsnd_mod *mod,
 		type	= RSND_MOD_AUDMA;
 	}
 
-	if (!(*dma_mod)) {
-		struct rsnd_dma *dma;
+	dma = devm_kzalloc(dev, sizeof(*dma), GFP_KERNEL);
+	if (!dma)
+		return -ENOMEM;
 
-		dma = devm_kzalloc(dev, sizeof(*dma), GFP_KERNEL);
-		if (!dma)
-			return -ENOMEM;
+	*dma_mod = rsnd_mod_get(dma);
 
-		*dma_mod = rsnd_mod_get(dma);
+	ret = rsnd_mod_init(priv, *dma_mod, ops, NULL,
+			    rsnd_mod_get_status, type, dma_id);
+	if (ret < 0)
+		return ret;
 
-		ret = rsnd_mod_init(priv, *dma_mod, ops, NULL,
-				    rsnd_mod_get_status, type, dma_id);
-		if (ret < 0)
-			return ret;
+	dev_dbg(dev, "%s[%d] %s[%d] -> %s[%d]\n",
+		rsnd_mod_name(*dma_mod), rsnd_mod_id(*dma_mod),
+		rsnd_mod_name(mod_from ? mod_from : &mem),
+		rsnd_mod_id  (mod_from ? mod_from : &mem),
+		rsnd_mod_name(mod_to   ? mod_to   : &mem),
+		rsnd_mod_id  (mod_to   ? mod_to   : &mem));
 
-		dev_dbg(dev, "%s[%d] %s[%d] -> %s[%d]\n",
-			rsnd_mod_name(*dma_mod), rsnd_mod_id(*dma_mod),
-			rsnd_mod_name(mod_from), rsnd_mod_id(mod_from),
-			rsnd_mod_name(mod_to),   rsnd_mod_id(mod_to));
+	ret = attach(io, dma, mod_from, mod_to);
+	if (ret < 0)
+		return ret;
+
+	dma->src_addr = rsnd_dma_addr(io, mod_from, is_play, 1);
+	dma->dst_addr = rsnd_dma_addr(io, mod_to,   is_play, 0);
+	dma->mod_from = mod_from;
+	dma->mod_to   = mod_to;
+
+	return 0;
+}
+
+int rsnd_dma_attach(struct rsnd_dai_stream *io, struct rsnd_mod *mod,
+		    struct rsnd_mod **dma_mod)
+{
+	if (!(*dma_mod)) {
+		int ret = rsnd_dma_alloc(io, mod, dma_mod);
 
-		ret = attach(io, dma, mod_from, mod_to);
 		if (ret < 0)
 			return ret;
-
-		dma->src_addr = rsnd_dma_addr(io, mod_from, is_play, 1);
-		dma->dst_addr = rsnd_dma_addr(io, mod_to,   is_play, 0);
-		dma->mod_from = mod_from;
-		dma->mod_to   = mod_to;
 	}
 
-	ret = rsnd_dai_connect(*dma_mod, io, type);
-	if (ret < 0)
-		return ret;
-
-	return 0;
+	return rsnd_dai_connect(*dma_mod, io, (*dma_mod)->type);
 }
 
 int rsnd_dma_probe(struct rsnd_priv *priv)
@@ -866,5 +881,6 @@ int rsnd_dma_probe(struct rsnd_priv *priv)
 
 	priv->dma = dmac;
 
-	return 0;
+	/* dummy mem mod for debug */
+	return rsnd_mod_init(NULL, &mem, &mem_ops, NULL, NULL, 0, 0);
 }