ASoC: rsnd: add rsnd_scu_enable_ssi_irq()

Current R-Car sound driver is assuming that
SCU mod is used even though it is not needed.
Because scu.c is controlling SSIU too.
(it is Gen1 compatibility)
But, SCU mod will be really not used if new platform dai
feature was used.
Thus, SSIU irq setting is called from SSI
directory by this patch.

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

sound/soc/sh/rcar/rsnd.h

@@ -353,6 +353,9 @@ struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id);
 unsigned int rsnd_scu_get_ssi_rate(struct rsnd_priv *priv,
 				   struct rsnd_dai_stream *io,
 				   struct snd_pcm_runtime *runtime);
+int rsnd_scu_enable_ssi_irq(struct rsnd_mod *ssi_mod,
+			    struct rsnd_dai *rdai,
+			    struct rsnd_dai_stream *io);
 
 #define rsnd_scu_nr(priv) ((priv)->scu_nr)
 

sound/soc/sh/rcar/scu.c

@@ -165,6 +165,19 @@ static int rsnd_scu_ssi_mode_init(struct rsnd_mod *mod,
 	return 0;
 }
 
+int rsnd_scu_enable_ssi_irq(struct rsnd_mod *ssi_mod,
+			    struct rsnd_dai *rdai,
+			    struct rsnd_dai_stream *io)
+{
+	struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
+
+	/* enable PIO interrupt if Gen2 */
+	if (rsnd_is_gen2(priv))
+		rsnd_mod_write(ssi_mod, INT_ENABLE, 0x0f000000);
+
+	return 0;
+}
+
 unsigned int rsnd_scu_get_ssi_rate(struct rsnd_priv *priv,
 				   struct rsnd_dai_stream *io,
 				   struct snd_pcm_runtime *runtime)
@@ -579,22 +592,9 @@ static struct rsnd_mod_ops rsnd_scu_gen2_ops = {
 	.stop	= rsnd_scu_stop_gen2,
 };
 
-static int rsnd_scu_start_non_gen2(struct rsnd_mod *mod,
-				   struct rsnd_dai *rdai,
-				   struct rsnd_dai_stream *io)
-{
-	struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
-
-	/* enable PIO interrupt */
-	rsnd_mod_write(ssi_mod, INT_ENABLE, 0x0f000000);
-
-	return 0;
-}
-
 static struct rsnd_mod_ops rsnd_scu_non_gen2_ops = {
 	.name	= "non-scu (gen2)",
 	.init	= rsnd_scu_ssi_mode_init,
-	.start	= rsnd_scu_start_non_gen2,
 };
 
 struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id)

sound/soc/sh/rcar/ssi.c

@@ -365,6 +365,8 @@ static int rsnd_ssi_pio_start(struct rsnd_mod *mod,
 	/* enable PIO IRQ */
 	ssi->cr_etc = UIEN | OIEN | DIEN;
 
+	rsnd_scu_enable_ssi_irq(mod, rdai, io);
+
 	rsnd_ssi_hw_start(ssi, rdai, io);
 
 	return 0;