ASoC: rsnd: remove platform boot support from ssi.c

No board is using Renesas sound driver via platform boot now.
This means all user is using DT boot. Platform boot support is
no longer needed. But, it strongly depends on platform boot style.
This patch removes platform boot support from ssi.c

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

sound/soc/sh/rcar/rcar_snd.h

@@ -32,8 +32,6 @@
  * A : clock sharing settings
  * B : SSI direction
  */
-#define RSND_SSI_CLK_PIN_SHARE		(1 << 31)
-#define RSND_SSI_NO_BUSIF		(1 << 30) /* SSI+DMA without BUSIF */
 
 #define RSND_SSI(_dma_id, _irq, _flags)		\
 { .dma_id = _dma_id, .irq = _irq, .flags = _flags }

sound/soc/sh/rcar/ssi.c

@@ -61,32 +61,36 @@
 #define SSI_NAME "ssi"
 
 struct rsnd_ssi {
-	struct rsnd_ssi_platform_info *info; /* rcar_snd.h */
 	struct rsnd_ssi *parent;
 	struct rsnd_mod mod;
 	struct rsnd_mod *dma;
 
+	u32 flags;
 	u32 cr_own;
 	u32 cr_clk;
 	u32 cr_mode;
 	int chan;
 	int rate;
 	int err;
+	int irq;
 	unsigned int usrcnt;
 };
 
+/* flags */
+#define RSND_SSI_CLK_PIN_SHARE		(1 << 0)
+#define RSND_SSI_NO_BUSIF		(1 << 1) /* SSI+DMA without BUSIF */
+
 #define for_each_rsnd_ssi(pos, priv, i)					\
 	for (i = 0;							\
 	     (i < rsnd_ssi_nr(priv)) &&					\
 		((pos) = ((struct rsnd_ssi *)(priv)->ssi + i));		\
 	     i++)
 
+#define rsnd_ssi_get(priv, id) ((struct rsnd_ssi *)(priv->ssi) + id)
 #define rsnd_ssi_to_dma(mod) ((ssi)->dma)
 #define rsnd_ssi_nr(priv) ((priv)->ssi_nr)
 #define rsnd_mod_to_ssi(_mod) container_of((_mod), struct rsnd_ssi, mod)
-#define rsnd_ssi_pio_available(ssi) ((ssi)->info->irq > 0)
-#define rsnd_ssi_mode_flags(p) ((p)->info->flags)
-#define rsnd_ssi_dai_id(ssi) ((ssi)->info->dai_id)
+#define rsnd_ssi_mode_flags(p) ((p)->flags)
 #define rsnd_ssi_is_parent(ssi, io) ((ssi) == rsnd_io_to_mod_ssip(io))
 
 int rsnd_ssi_use_busif(struct rsnd_dai_stream *io)
@@ -587,7 +591,7 @@ static int rsnd_ssi_common_probe(struct rsnd_mod *mod,
 	if (ret < 0)
 		return ret;
 
-	ret = devm_request_irq(dev, ssi->info->irq,
+	ret = devm_request_irq(dev, ssi->irq,
 			       rsnd_ssi_interrupt,
 			       IRQF_SHARED,
 			       dev_name(dev), mod);
@@ -610,7 +614,7 @@ static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
 			      struct rsnd_priv *priv)
 {
 	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
-	int dma_id = ssi->info->dma_id;
+	int dma_id = 0; /* not needed */
 	int ret;
 
 	ret = rsnd_ssi_common_probe(mod, io, priv);
@@ -630,7 +634,7 @@ static int rsnd_ssi_dma_remove(struct rsnd_mod *mod,
 {
 	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
-	int irq = ssi->info->irq;
+	int irq = ssi->irq;
 
 	/* PIO will request IRQ again */
 	devm_free_irq(dev, irq, mod);
@@ -709,7 +713,7 @@ struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id)
 	if (WARN_ON(id < 0 || id >= rsnd_ssi_nr(priv)))
 		id = 0;
 
-	return rsnd_mod_get((struct rsnd_ssi *)(priv->ssi) + id);
+	return rsnd_mod_get(rsnd_ssi_get(priv, id));
 }
 
 int __rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod)
@@ -719,73 +723,12 @@ int __rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod)
 	return !!(rsnd_ssi_mode_flags(ssi) & RSND_SSI_CLK_PIN_SHARE);
 }
 
-static void rsnd_of_parse_ssi(struct platform_device *pdev,
-			      const struct rsnd_of_data *of_data,
-			      struct rsnd_priv *priv)
-{
-	struct device_node *node;
-	struct device_node *np;
-	struct rsnd_ssi_platform_info *ssi_info;
-	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
-	struct device *dev = &pdev->dev;
-	int nr, i;
-
-	node = rsnd_ssi_of_node(priv);
-	if (!node)
-		return;
-
-	nr = of_get_child_count(node);
-	if (!nr)
-		goto rsnd_of_parse_ssi_end;
-
-	ssi_info = devm_kzalloc(dev,
-				sizeof(struct rsnd_ssi_platform_info) * nr,
-				GFP_KERNEL);
-	if (!ssi_info) {
-		dev_err(dev, "ssi info allocation error\n");
-		goto rsnd_of_parse_ssi_end;
-	}
-
-	info->ssi_info		= ssi_info;
-	info->ssi_info_nr	= nr;
-
-	i = -1;
-	for_each_child_of_node(node, np) {
-		i++;
-
-		ssi_info = info->ssi_info + i;
-
-		/*
-		 * pin settings
-		 */
-		if (of_get_property(np, "shared-pin", NULL))
-			ssi_info->flags |= RSND_SSI_CLK_PIN_SHARE;
-
-		/*
-		 * irq
-		 */
-		ssi_info->irq = irq_of_parse_and_map(np, 0);
-
-		/*
-		 * DMA
-		 */
-		ssi_info->dma_id = of_get_property(np, "pio-transfer", NULL) ?
-			0 : 1;
-
-		if (of_get_property(np, "no-busif", NULL))
-			ssi_info->flags |= RSND_SSI_NO_BUSIF;
-	}
-
-rsnd_of_parse_ssi_end:
-	of_node_put(node);
-}
-
 int rsnd_ssi_probe(struct platform_device *pdev,
 		   const struct rsnd_of_data *of_data,
 		   struct rsnd_priv *priv)
 {
-	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
-	struct rsnd_ssi_platform_info *pinfo;
+	struct device_node *node;
+	struct device_node *np;
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_mod_ops *ops;
 	struct clk *clk;
@@ -793,44 +736,70 @@ int rsnd_ssi_probe(struct platform_device *pdev,
 	char name[RSND_SSI_NAME_SIZE];
 	int i, nr, ret;
 
-	rsnd_of_parse_ssi(pdev, of_data, priv);
+	node = rsnd_ssi_of_node(priv);
+	if (!node)
+		return -EINVAL;
+
+	nr = of_get_child_count(node);
+	if (!nr) {
+		ret = -EINVAL;
+		goto rsnd_ssi_probe_done;
+	}
 
-	/*
-	 *	init SSI
-	 */
-	nr	= info->ssi_info_nr;
 	ssi	= devm_kzalloc(dev, sizeof(*ssi) * nr, GFP_KERNEL);
-	if (!ssi)
-		return -ENOMEM;
+	if (!ssi) {
+		ret = -ENOMEM;
+		goto rsnd_ssi_probe_done;
+	}
 
 	priv->ssi	= ssi;
 	priv->ssi_nr	= nr;
 
-	for_each_rsnd_ssi(ssi, priv, i) {
-		pinfo = &info->ssi_info[i];
+	i = 0;
+	for_each_child_of_node(node, np) {
+		ssi = rsnd_ssi_get(priv, i);
 
 		snprintf(name, RSND_SSI_NAME_SIZE, "%s.%d",
 			 SSI_NAME, i);
 
 		clk = devm_clk_get(dev, name);
-		if (IS_ERR(clk))
-			return PTR_ERR(clk);
+		if (IS_ERR(clk)) {
+			ret = PTR_ERR(clk);
+			goto rsnd_ssi_probe_done;
+		}
 
-		ssi->info	= pinfo;
+		if (of_get_property(np, "shared-pin", NULL))
+			ssi->flags |= RSND_SSI_CLK_PIN_SHARE;
+
+		if (of_get_property(np, "no-busif", NULL))
+			ssi->flags |= RSND_SSI_NO_BUSIF;
+
+		ssi->irq = irq_of_parse_and_map(np, 0);
+		if (!ssi->irq) {
+			ret = -EINVAL;
+			goto rsnd_ssi_probe_done;
+		}
 
 		ops = &rsnd_ssi_non_ops;
-		if (pinfo->dma_id > 0)
-			ops = &rsnd_ssi_dma_ops;
-		else if (rsnd_ssi_pio_available(ssi))
+		if (of_get_property(np, "pio-transfer", NULL))
 			ops = &rsnd_ssi_pio_ops;
+		else
+			ops = &rsnd_ssi_dma_ops;
 
 		ret = rsnd_mod_init(priv, rsnd_mod_get(ssi), ops, clk,
 				    RSND_MOD_SSI, i);
 		if (ret)
-			return ret;
+			goto rsnd_ssi_probe_done;
+
+		i++;
 	}
 
-	return 0;
+	ret = 0;
+
+rsnd_ssi_probe_done:
+	of_node_put(node);
+
+	return ret;
 }
 
 void rsnd_ssi_remove(struct platform_device *pdev,