ASoC: rsnd: rename rsnd_dma_init() to rsnd_dma_attach()

Renesas sound needs many devices
(SSI/SSIU/SRC/CTU/MIX/DVC/CMD/AudioDMAC/AudioDMACpp).
SSI/SRC/CTU/MIX/DVC are implemented as module.
SSI parent, SSIU are implemented as part of SSI
CMD is implemented as part of CTU/MIX/DVC
AudioDMAC/AudioDMACpp are implemented as part of SSI/SRC
It is nice sense that these all devices are implemented as mod.

DMA will be implemented as module. Then each rsnd_dma_ops will be
rsnd_mod_ops. But current rsnd_dma_ops::init means "DMA attach".
This patch removes .init from rsnd_dma_ops, and renames
rsnd_dma_init() to rsnd_dma_attach()

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

sound/soc/sh/rcar/dma.c

@@ -52,8 +52,6 @@ struct rsnd_dma_ops {
 	char *name;
 	void (*start)(struct rsnd_dai_stream *io, struct rsnd_dma *dma);
 	void (*stop)(struct rsnd_dai_stream *io, struct rsnd_dma *dma);
-	int (*init)(struct rsnd_dai_stream *io, struct rsnd_dma *dma, int id,
-		    struct rsnd_mod *mod_from, struct rsnd_mod *mod_to);
 	void (*quit)(struct rsnd_dai_stream *io, struct rsnd_dma *dma);
 };
 
@@ -176,7 +174,7 @@ static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_dai_stream *io,
 		return rsnd_mod_dma_req(io, mod_to);
 }
 
-static int rsnd_dmaen_init(struct rsnd_dai_stream *io,
+static int rsnd_dmaen_attach(struct rsnd_dai_stream *io,
 			   struct rsnd_dma *dma, int id,
 			   struct rsnd_mod *mod_from, struct rsnd_mod *mod_to)
 {
@@ -221,11 +219,11 @@ static int rsnd_dmaen_init(struct rsnd_dai_stream *io,
 
 	ret = dmaengine_slave_config(dmaen->chan, &cfg);
 	if (ret < 0)
-		goto rsnd_dma_init_err;
+		goto rsnd_dma_attach_err;
 
 	return 0;
 
-rsnd_dma_init_err:
+rsnd_dma_attach_err:
 	rsnd_dma_quit(io, dma);
 rsnd_dma_channel_err:
 
@@ -252,7 +250,6 @@ static struct rsnd_dma_ops rsnd_dmaen_ops = {
 	.name	= "audmac",
 	.start	= rsnd_dmaen_start,
 	.stop	= rsnd_dmaen_stop,
-	.init	= rsnd_dmaen_init,
 	.quit	= rsnd_dmaen_quit,
 };
 
@@ -372,7 +369,7 @@ static void rsnd_dmapp_start(struct rsnd_dai_stream *io, struct rsnd_dma *dma)
 	rsnd_dmapp_write(dma, dmapp->chcr,	PDMACHCR);
 }
 
-static int rsnd_dmapp_init(struct rsnd_dai_stream *io,
+static int rsnd_dmapp_attach(struct rsnd_dai_stream *io,
 			     struct rsnd_dma *dma, int id,
 			     struct rsnd_mod *mod_from, struct rsnd_mod *mod_to)
 {
@@ -398,7 +395,6 @@ static struct rsnd_dma_ops rsnd_dmapp_ops = {
 	.name	= "audmac-pp",
 	.start	= rsnd_dmapp_start,
 	.stop	= rsnd_dmapp_stop,
-	.init	= rsnd_dmapp_init,
 	.quit	= rsnd_dmapp_stop,
 };
 
@@ -630,7 +626,7 @@ void rsnd_dma_quit(struct rsnd_dai_stream *io, struct rsnd_dma *dma)
 	dma->ops->quit(io, dma);
 }
 
-struct rsnd_dma *rsnd_dma_init(struct rsnd_dai_stream *io,
+struct rsnd_dma *rsnd_dma_attach(struct rsnd_dai_stream *io,
 				 struct rsnd_mod *mod, int id)
 {
 	struct rsnd_mod *mod_from = NULL;
@@ -639,6 +635,8 @@ struct rsnd_dma *rsnd_dma_init(struct rsnd_dai_stream *io,
 	struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
 	struct rsnd_dma *dma;
 	struct device *dev = rsnd_priv_to_dev(priv);
+	int (*attach)(struct rsnd_dai_stream *io, struct rsnd_dma *dma, int id,
+		      struct rsnd_mod *mod_from, struct rsnd_mod *mod_to);
 	int is_play = rsnd_io_is_play(io);
 	int ret;
 
@@ -663,21 +661,26 @@ struct rsnd_dma *rsnd_dma_init(struct rsnd_dai_stream *io,
 	dma->dst_addr = rsnd_dma_addr(io, mod_to,   is_play, 0);
 
 	/* for Gen2 */
-	if (mod_from && mod_to)
+	if (mod_from && mod_to) {
 		dma->ops = &rsnd_dmapp_ops;
-	else
+		attach	= rsnd_dmapp_attach;
+	} else {
 		dma->ops = &rsnd_dmaen_ops;
+		attach	= rsnd_dmaen_attach;
+	}
 
 	/* for Gen1, overwrite */
-	if (rsnd_is_gen1(priv))
+	if (rsnd_is_gen1(priv)) {
 		dma->ops = &rsnd_dmaen_ops;
+		attach	= rsnd_dmaen_attach;
+	}
 
 	dev_dbg(dev, "%s %s[%d] -> %s[%d]\n",
 		dma->ops->name,
 		rsnd_mod_name(mod_from), rsnd_mod_id(mod_from),
 		rsnd_mod_name(mod_to),   rsnd_mod_id(mod_to));
 
-	ret = dma->ops->init(io, dma, id, mod_from, mod_to);
+	ret = attach(io, dma, id, mod_from, mod_to);
 	if (ret < 0)
 		return ERR_PTR(ret);
 

sound/soc/sh/rcar/rsnd.h

@@ -197,7 +197,7 @@ struct rsnd_dma;
 
 void rsnd_dma_start(struct rsnd_dai_stream *io, struct rsnd_dma *dma);
 void rsnd_dma_stop(struct rsnd_dai_stream *io, struct rsnd_dma *dma);
-struct rsnd_dma *rsnd_dma_init(struct rsnd_dai_stream *io,
+struct rsnd_dma *rsnd_dma_attach(struct rsnd_dai_stream *io,
 			       struct rsnd_mod *mod, int id);
 void rsnd_dma_quit(struct rsnd_dai_stream *io, struct rsnd_dma *dma);
 int rsnd_dma_probe(struct platform_device *pdev,

sound/soc/sh/rcar/src.c

@@ -841,7 +841,7 @@ static int rsnd_src_probe_gen2(struct rsnd_mod *mod,
 			return ret;
 	}
 
-	src->dma = rsnd_dma_init(io, mod, src->info->dma_id);
+	src->dma = rsnd_dma_attach(io, mod, src->info->dma_id);
 	if (IS_ERR(src->dma))
 		return PTR_ERR(src->dma);
 

sound/soc/sh/rcar/ssi.c

@@ -539,7 +539,7 @@ static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
 	if (ret)
 		return ret;
 
-	ssi->dma = rsnd_dma_init(io, mod, dma_id);
+	ssi->dma = rsnd_dma_attach(io, mod, dma_id);
 	if (IS_ERR(ssi->dma))
 		return PTR_ERR(ssi->dma);