ASoC: rsnd: ctu: add rsnd_mix_activation()

Based on datasheet

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

sound/soc/sh/rcar/ctu.c

@@ -24,6 +24,13 @@ struct rsnd_ctu {
 	     i++)
 
 #define rsnd_ctu_get(priv, id) ((struct rsnd_ctu *)(priv->ctu) + id)
+
+static void rsnd_ctu_activation(struct rsnd_mod *mod)
+{
+	rsnd_mod_write(mod, CTU_SWRSR, 0);
+	rsnd_mod_write(mod, CTU_SWRSR, 1);
+}
+
 #define rsnd_ctu_initialize_lock(mod)	__rsnd_ctu_initialize_lock(mod, 1)
 #define rsnd_ctu_initialize_unlock(mod)	__rsnd_ctu_initialize_lock(mod, 0)
 static void __rsnd_ctu_initialize_lock(struct rsnd_mod *mod, u32 enable)
@@ -44,6 +51,8 @@ static int rsnd_ctu_init(struct rsnd_mod *mod,
 {
 	rsnd_mod_power_on(mod);
 
+	rsnd_ctu_activation(mod);
+
 	rsnd_ctu_initialize_lock(mod);
 
 	rsnd_mod_write(mod, CTU_ADINR, rsnd_get_adinr_chan(mod, io));

sound/soc/sh/rcar/gen.c

@@ -260,6 +260,7 @@ static int rsnd_gen2_probe(struct rsnd_priv *priv)
 		RSND_GEN_M_REG(SRC_SRCCR,	0x224,	0x40),
 		RSND_GEN_M_REG(SRC_BSDSR,	0x22c,	0x40),
 		RSND_GEN_M_REG(SRC_BSISR,	0x238,	0x40),
+		RSND_GEN_M_REG(CTU_SWRSR,	0x500,	0x100),
 		RSND_GEN_M_REG(CTU_CTUIR,	0x504,	0x100),
 		RSND_GEN_M_REG(CTU_ADINR,	0x508,	0x100),
 		RSND_GEN_M_REG(MIX_SWRSR,	0xd00,	0x40),

sound/soc/sh/rcar/rsnd.h

@@ -86,6 +86,7 @@ enum rsnd_reg {
 	RSND_REG_CMD_BUSIF_DALIGN,	/* Gen2 only */
 	RSND_REG_CMD_ROUTE_SLCT,
 	RSND_REG_CMDOUT_TIMSEL,		/* Gen2 only */
+	RSND_REG_CTU_SWRSR,
 	RSND_REG_CTU_CTUIR,
 	RSND_REG_CTU_ADINR,
 	RSND_REG_MIX_SWRSR,