ASoC: rsnd: tidyup rsnd_get_slot_xxx() naming

rsnd_get_slot_rdai() returns total slots (it returns 6 if total 6
channels) , and rsnd_get_slot_extend() returns extended SSI width
(it returns 8 if total 6 channels). This will be used on SSI multi
channel support too (It will return 2 if total 6 channels with 3 SSI).
But, it is using confusable naming.
This patch changes rsnd_get_slot_rdai() -> rsnd_get_slot(),
rsnd_get_slot_extend() -> rsnd_get_slot_width()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sh/rcar/core.c

@@ -191,12 +191,14 @@ int rsnd_io_is_working(struct rsnd_dai_stream *io)
 	return !!io->substream;
 }
 
-int rsnd_get_slot_rdai(struct rsnd_dai *rdai)
+int rsnd_get_slot(struct rsnd_dai_stream *io)
 {
+	struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+
 	return rdai->slots;
 }
 
-int rsnd_get_slot_extend(struct rsnd_dai_stream *io)
+int rsnd_get_slot_width(struct rsnd_dai_stream *io)
 {
 	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 	int chan = runtime->channels;

sound/soc/sh/rcar/dvc.c

@@ -242,10 +242,9 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
 			    struct rsnd_dai_stream *io,
 			    struct snd_soc_pcm_runtime *rtd)
 {
-	struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
 	struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
 	int is_play = rsnd_io_is_play(io);
-	int slots = rsnd_get_slot_rdai(rdai);
+	int slots = rsnd_get_slot(io);
 	int ret;
 
 	/* Volume */

sound/soc/sh/rcar/rsnd.h

@@ -293,8 +293,8 @@ void rsnd_mod_interrupt(struct rsnd_mod *mod,
 			void (*callback)(struct rsnd_mod *mod,
 					 struct rsnd_dai_stream *io));
 
-int rsnd_get_slot_rdai(struct rsnd_dai *rdai);
-int rsnd_get_slot_extend(struct rsnd_dai_stream *io);
+int rsnd_get_slot(struct rsnd_dai_stream *io);
+int rsnd_get_slot_width(struct rsnd_dai_stream *io);
 
 /*
  *	R-Car sound DAI

sound/soc/sh/rcar/ssi.c

@@ -180,7 +180,7 @@ static int rsnd_ssi_master_clk_start(struct rsnd_ssi *ssi,
 	struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
 	struct rsnd_mod *mod = rsnd_mod_get(ssi);
 	struct rsnd_mod *ssi_parent_mod = rsnd_io_to_mod_ssip(io);
-	int slots = rsnd_get_slot_extend(io);
+	int slots = rsnd_get_slot_width(io);
 	int j, ret;
 	int ssi_clk_mul_table[] = {
 		1, 2, 4, 8, 16, 6, 12,
@@ -267,7 +267,7 @@ static int rsnd_ssi_config_init(struct rsnd_ssi *ssi,
 	u32 wsr;
 	int is_tdm;
 
-	is_tdm = (rsnd_get_slot_extend(io) >= 6) ? 1 : 0;
+	is_tdm = (rsnd_get_slot_width(io) >= 6) ? 1 : 0;
 
 	/*
 	 * always use 32bit system word.

sound/soc/sh/rcar/ssiu.c

@@ -78,7 +78,7 @@ static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod,
 	if (ret < 0)
 		return ret;
 
-	if (rsnd_get_slot_extend(io) >= 6) {
+	if (rsnd_get_slot_width(io) >= 6) {
 		/*
 		 * TDM Extend Mode
 		 * see