ASoC: rsnd: dvc enables non-stereo sound

Current DVC is assuming that the sound is always stereo.
This patch makes it more flexible

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

sound/soc/sh/rcar/core.c

@@ -871,10 +871,14 @@ int rsnd_kctrl_new_m(struct rsnd_mod *mod,
 		     void (*update)(struct rsnd_dai_stream *io,
 				    struct rsnd_mod *mod),
 		     struct rsnd_kctrl_cfg_m *_cfg,
+		     int ch_size,
 		     u32 max)
 {
+	if (ch_size > RSND_DVC_CHANNELS)
+		return -EINVAL;
+
 	_cfg->cfg.max	= max;
-	_cfg->cfg.size	= RSND_DVC_CHANNELS;
+	_cfg->cfg.size	= ch_size;
 	_cfg->cfg.val	= _cfg->val;
 	return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
 }

sound/soc/sh/rcar/dvc.c

@@ -97,6 +97,12 @@ static void rsnd_dvc_volume_parameter(struct rsnd_dai_stream *io,
 	/* Enable Digital Volume */
 	rsnd_mod_write(mod, DVC_VOL0R, val[0]);
 	rsnd_mod_write(mod, DVC_VOL1R, val[1]);
+	rsnd_mod_write(mod, DVC_VOL2R, val[2]);
+	rsnd_mod_write(mod, DVC_VOL3R, val[3]);
+	rsnd_mod_write(mod, DVC_VOL4R, val[4]);
+	rsnd_mod_write(mod, DVC_VOL5R, val[5]);
+	rsnd_mod_write(mod, DVC_VOL6R, val[6]);
+	rsnd_mod_write(mod, DVC_VOL7R, val[7]);
 }
 
 static void rsnd_dvc_volume_init(struct rsnd_dai_stream *io,
@@ -236,8 +242,10 @@ 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 ret;
 
 	/* Volume */
@@ -245,7 +253,8 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
 			is_play ?
 			"DVC Out Playback Volume" : "DVC In Capture Volume",
 			rsnd_dvc_volume_update,
-			&dvc->volume, 0x00800000 - 1);
+			&dvc->volume, slots,
+			0x00800000 - 1);
 	if (ret < 0)
 		return ret;
 
@@ -254,7 +263,8 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
 			is_play ?
 			"DVC Out Mute Switch" : "DVC In Mute Switch",
 			rsnd_dvc_volume_update,
-			&dvc->mute, 1);
+			&dvc->mute,  slots,
+			1);
 	if (ret < 0)
 		return ret;
 

sound/soc/sh/rcar/gen.c

@@ -277,6 +277,12 @@ static int rsnd_gen2_probe(struct rsnd_priv *priv)
 		RSND_GEN_M_REG(DVC_VRDBR,	0xe20,	0x100),
 		RSND_GEN_M_REG(DVC_VOL0R,	0xe28,	0x100),
 		RSND_GEN_M_REG(DVC_VOL1R,	0xe2c,	0x100),
+		RSND_GEN_M_REG(DVC_VOL2R,	0xe30,	0x100),
+		RSND_GEN_M_REG(DVC_VOL3R,	0xe34,	0x100),
+		RSND_GEN_M_REG(DVC_VOL4R,	0xe38,	0x100),
+		RSND_GEN_M_REG(DVC_VOL5R,	0xe3c,	0x100),
+		RSND_GEN_M_REG(DVC_VOL6R,	0xe40,	0x100),
+		RSND_GEN_M_REG(DVC_VOL7R,	0xe44,	0x100),
 		RSND_GEN_M_REG(DVC_DVUER,	0xe48,	0x100),
 	};
 	const static struct rsnd_regmap_field_conf conf_adg[] = {

sound/soc/sh/rcar/rsnd.h

@@ -101,6 +101,12 @@ enum rsnd_reg {
 	RSND_REG_DVC_ZCMCR,
 	RSND_REG_DVC_VOL0R,
 	RSND_REG_DVC_VOL1R,
+	RSND_REG_DVC_VOL2R,
+	RSND_REG_DVC_VOL3R,
+	RSND_REG_DVC_VOL4R,
+	RSND_REG_DVC_VOL5R,
+	RSND_REG_DVC_VOL6R,
+	RSND_REG_DVC_VOL7R,
 	RSND_REG_DVC_DVUER,
 	RSND_REG_DVC_VRCTR,		/* Gen2 only */
 	RSND_REG_DVC_VRPDR,		/* Gen2 only */
@@ -476,7 +482,7 @@ struct rsnd_kctrl_cfg {
 	struct snd_kcontrol *kctrl;
 };
 
-#define RSND_DVC_CHANNELS	2
+#define RSND_DVC_CHANNELS	8
 struct rsnd_kctrl_cfg_m {
 	struct rsnd_kctrl_cfg cfg;
 	u32 val[RSND_DVC_CHANNELS];
@@ -497,6 +503,7 @@ int rsnd_kctrl_new_m(struct rsnd_mod *mod,
 		     void (*update)(struct rsnd_dai_stream *io,
 				    struct rsnd_mod *mod),
 		     struct rsnd_kctrl_cfg_m *_cfg,
+		     int ch_size,
 		     u32 max);
 int rsnd_kctrl_new_s(struct rsnd_mod *mod,
 		     struct rsnd_dai_stream *io,