[alsa-devel] [PATCH 04/11] ASoC: rsnd: call rsnd_scu_ssi_mode_init() from SSI

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

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 added.
Thus, rsnd_scu_ssi_mode_init() is called from SSI
directory by this patch.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 sound/soc/sh/rcar/rsnd.h |    3 +++
 sound/soc/sh/rcar/scu.c  |   54 +++++++++++++++-------------------------------
 sound/soc/sh/rcar/ssi.c  |    2 ++
 3 files changed, 22 insertions(+), 37 deletions(-)

diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 3b71b77..9205f96 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/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_ssi_mode_init(struct rsnd_mod *ssi_mod,
+			   struct rsnd_dai *rdai,
+			   struct rsnd_dai_stream *io);
 int rsnd_scu_enable_ssi_irq(struct rsnd_mod *ssi_mod,
 			    struct rsnd_dai *rdai,
 			    struct rsnd_dai_stream *io);
diff --git a/sound/soc/sh/rcar/scu.c b/sound/soc/sh/rcar/scu.c
index 8ce79e8..63e6aeb 100644
--- a/sound/soc/sh/rcar/scu.c
+++ b/sound/soc/sh/rcar/scu.c
@@ -115,28 +115,28 @@ struct rsnd_scu {
 /*
  *		Gen1/Gen2 common functions
  */
-static int rsnd_scu_ssi_mode_init(struct rsnd_mod *mod,
-				  struct rsnd_dai *rdai,
-				  struct rsnd_dai_stream *io)
+int rsnd_scu_ssi_mode_init(struct rsnd_mod *ssi_mod,
+			   struct rsnd_dai *rdai,
+			   struct rsnd_dai_stream *io)
 {
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
-	struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
+	struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
+	struct rsnd_mod *scu_mod = rsnd_io_to_mod_scu(io);
+	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
 	int ssi_id = rsnd_mod_id(ssi_mod);
-	u32 convert_rate = rsnd_scu_convert_rate(scu);
-
-	if (convert_rate && !rsnd_dai_is_clk_master(rdai)) {
-		struct device *dev = rsnd_priv_to_dev(priv);
-
-		dev_err(dev, "rsnd should be clk master when you rate convert\n");
-		return -EINVAL;
-	}
+	int has_scu = 0;
 
 	/*
 	 * SSI_MODE0
 	 */
-	rsnd_mod_bset(mod, SSI_MODE0, (1 << ssi_id),
-		      rsnd_scu_hpbif_is_enable(scu) ? 0 : (1 << ssi_id));
+	if (info->dai_info) {
+		has_scu = !!scu_mod;
+	} else {
+		struct rsnd_scu *scu = rsnd_mod_to_scu(scu_mod);
+		has_scu = rsnd_scu_hpbif_is_enable(scu);
+	}
+
+	rsnd_mod_bset(ssi_mod, SSI_MODE0, (1 << ssi_id),
+		      has_scu ? 0 : (1 << ssi_id));
 
 	/*
 	 * SSI_MODE1
@@ -156,7 +156,7 @@ static int rsnd_scu_ssi_mode_init(struct rsnd_mod *mod,
 		}
 
 		if (shift >= 0)
-			rsnd_mod_bset(mod, SSI_MODE1,
+			rsnd_mod_bset(ssi_mod, SSI_MODE1,
 				      0x3 << shift,
 				      rsnd_dai_is_clk_master(rdai) ?
 				      0x2 << shift : 0x1 << shift);
@@ -253,14 +253,9 @@ static int rsnd_scu_init(struct rsnd_mod *mod,
 			 struct rsnd_dai_stream *io)
 {
 	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
-	int ret;
 
 	clk_enable(scu->clk);
 
-	ret = rsnd_scu_ssi_mode_init(mod, rdai, io);
-	if (ret < 0)
-		return ret;
-
 	return 0;
 }
 
@@ -487,11 +482,6 @@ static struct rsnd_mod_ops rsnd_scu_gen1_ops = {
 	.stop	= rsnd_scu_stop_gen1,
 };
 
-static struct rsnd_mod_ops rsnd_scu_non_gen1_ops = {
-	.name	= "non-sru (gen1)",
-	.init	= rsnd_scu_ssi_mode_init,
-};
-
 /*
  *		Gen2 functions
  */
@@ -592,11 +582,6 @@ static struct rsnd_mod_ops rsnd_scu_gen2_ops = {
 	.stop	= rsnd_scu_stop_gen2,
 };
 
-static struct rsnd_mod_ops rsnd_scu_non_gen2_ops = {
-	.name	= "non-scu (gen2)",
-	.init	= rsnd_scu_ssi_mode_init,
-};
-
 struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id)
 {
 	if (WARN_ON(id < 0 || id >= rsnd_scu_nr(priv)))
@@ -665,11 +650,6 @@ int rsnd_scu_probe(struct platform_device *pdev,
 
 				ops = &rsnd_scu_gen2_ops;
 			}
-		} else {
-			if (rsnd_is_gen1(priv))
-				ops = &rsnd_scu_non_gen1_ops;
-			if (rsnd_is_gen2(priv))
-				ops = &rsnd_scu_non_gen2_ops;
 		}
 
 		rsnd_mod_init(priv, &scu->mod, ops, RSND_MOD_SCU, i);
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index a74c7a7..a7df216 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -287,6 +287,8 @@ static int rsnd_ssi_init(struct rsnd_mod *mod,
 	ssi->cr_own	= cr;
 	ssi->err	= -1; /* ignore 1st error */
 
+	rsnd_scu_ssi_mode_init(mod, rdai, io);
+
 	return 0;
 }
 
-- 
1.7.9.5