1 files changed, 198 insertions, 71 deletions

diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
index eede3ac6eed..81c182b4bad 100644
--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -12,10 +12,17 @@
 
 #define SRC_NAME "src"
 
+/* SRCx_STATUS */
+#define OUF_SRCO	((1 << 12) | (1 << 13))
+#define OUF_SRCI	((1 <<  9) | (1 <<  8))
+
+/* SCU_SYSTEM_STATUS0/1 */
+#define OUF_SRC(id)	((1 << (id + 16)) | (1 << id))
+
 struct rsnd_src {
 	struct rsnd_src_platform_info *info; /* rcar_snd.h */
 	struct rsnd_mod mod;
-	struct clk *clk;
+	int err;
 };
 
 #define RSND_SRC_NAME_SIZE 16
@@ -107,10 +114,10 @@ struct rsnd_src {
  *		Gen1/Gen2 common functions
  */
 int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
-			struct rsnd_dai *rdai,
 			int use_busif)
 {
 	struct rsnd_dai_stream *io = rsnd_mod_to_io(ssi_mod);
+	struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
 	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 	int ssi_id = rsnd_mod_id(ssi_mod);
 
@@ -140,7 +147,7 @@ int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
 		if (shift >= 0)
 			rsnd_mod_bset(ssi_mod, SSI_MODE1,
 				      0x3 << shift,
-				      rsnd_dai_is_clk_master(rdai) ?
+				      rsnd_rdai_is_clk_master(rdai) ?
 				      0x2 << shift : 0x1 << shift);
 	}
 
@@ -174,8 +181,7 @@ int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
 	return 0;
 }
 
-int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod,
-		       struct rsnd_dai *rdai)
+int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod)
 {
 	/*
 	 * DMA settings for SSIU
@@ -185,8 +191,7 @@ int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod,
 	return 0;
 }
 
-int rsnd_src_ssi_irq_enable(struct rsnd_mod *ssi_mod,
-			    struct rsnd_dai *rdai)
+int rsnd_src_ssi_irq_enable(struct rsnd_mod *ssi_mod)
 {
 	struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
 
@@ -202,8 +207,7 @@ int rsnd_src_ssi_irq_enable(struct rsnd_mod *ssi_mod,
 	return 0;
 }
 
-int rsnd_src_ssi_irq_disable(struct rsnd_mod *ssi_mod,
-			    struct rsnd_dai *rdai)
+int rsnd_src_ssi_irq_disable(struct rsnd_mod *ssi_mod)
 {
 	struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
 
@@ -240,8 +244,7 @@ unsigned int rsnd_src_get_ssi_rate(struct rsnd_priv *priv,
 	return rate;
 }
 
-static int rsnd_src_set_convert_rate(struct rsnd_mod *mod,
-				     struct rsnd_dai *rdai)
+static int rsnd_src_set_convert_rate(struct rsnd_mod *mod)
 {
 	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
 	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
@@ -273,12 +276,13 @@ static int rsnd_src_set_convert_rate(struct rsnd_mod *mod,
 	return 0;
 }
 
-static int rsnd_src_init(struct rsnd_mod *mod,
-			 struct rsnd_dai *rdai)
+static int rsnd_src_init(struct rsnd_mod *mod)
 {
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
 
-	clk_prepare_enable(src->clk);
+	rsnd_mod_hw_start(mod);
+
+	src->err = 0;
 
 	/*
 	 * Initialize the operation of the SRC internal circuits
@@ -290,11 +294,16 @@ static int rsnd_src_init(struct rsnd_mod *mod,
 }
 
 static int rsnd_src_quit(struct rsnd_mod *mod,
-			 struct rsnd_dai *rdai)
+			 struct rsnd_priv *priv)
 {
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	struct device *dev = rsnd_priv_to_dev(priv);
+
+	rsnd_mod_hw_stop(mod);
 
-	clk_disable_unprepare(src->clk);
+	if (src->err)
+		dev_warn(dev, "%s[%d] under/over flow err = %d\n",
+			 rsnd_mod_name(mod), rsnd_mod_id(mod), src->err);
 
 	return 0;
 }
@@ -319,8 +328,7 @@ static int rsnd_src_stop(struct rsnd_mod *mod)
 /*
  *		Gen1 functions
  */
-static int rsnd_src_set_route_gen1(struct rsnd_mod *mod,
-				   struct rsnd_dai *rdai)
+static int rsnd_src_set_route_gen1(struct rsnd_mod *mod)
 {
 	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
 	struct src_route_config {
@@ -348,7 +356,7 @@ static int rsnd_src_set_route_gen1(struct rsnd_mod *mod,
 	/*
 	 * SRC_ROUTE_SELECT
 	 */
-	val = rsnd_dai_is_play(rdai, io) ? 0x1 : 0x2;
+	val = rsnd_io_is_play(io) ? 0x1 : 0x2;
 	val = val		<< routes[id].shift;
 	mask = routes[id].mask	<< routes[id].shift;
 
@@ -357,8 +365,7 @@ static int rsnd_src_set_route_gen1(struct rsnd_mod *mod,
 	return 0;
 }
 
-static int rsnd_src_set_convert_timing_gen1(struct rsnd_mod *mod,
-					    struct rsnd_dai *rdai)
+static int rsnd_src_set_convert_timing_gen1(struct rsnd_mod *mod)
 {
 	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
@@ -416,13 +423,12 @@ static int rsnd_src_set_convert_timing_gen1(struct rsnd_mod *mod,
 	return 0;
 }
 
-static int rsnd_src_set_convert_rate_gen1(struct rsnd_mod *mod,
-					  struct rsnd_dai *rdai)
+static int rsnd_src_set_convert_rate_gen1(struct rsnd_mod *mod)
 {
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
 	int ret;
 
-	ret = rsnd_src_set_convert_rate(mod, rdai);
+	ret = rsnd_src_set_convert_rate(mod);
 	if (ret < 0)
 		return ret;
 
@@ -443,9 +449,8 @@ static int rsnd_src_set_convert_rate_gen1(struct rsnd_mod *mod,
 }
 
 static int rsnd_src_probe_gen1(struct rsnd_mod *mod,
-			      struct rsnd_dai *rdai)
+			       struct rsnd_priv *priv)
 {
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
 
 	dev_dbg(dev, "%s[%d] (Gen1) is probed\n",
@@ -455,23 +460,23 @@ static int rsnd_src_probe_gen1(struct rsnd_mod *mod,
 }
 
 static int rsnd_src_init_gen1(struct rsnd_mod *mod,
-			      struct rsnd_dai *rdai)
+			      struct rsnd_priv *priv)
 {
 	int ret;
 
-	ret = rsnd_src_init(mod, rdai);
+	ret = rsnd_src_init(mod);
 	if (ret < 0)
 		return ret;
 
-	ret = rsnd_src_set_route_gen1(mod, rdai);
+	ret = rsnd_src_set_route_gen1(mod);
 	if (ret < 0)
 		return ret;
 
-	ret = rsnd_src_set_convert_rate_gen1(mod, rdai);
+	ret = rsnd_src_set_convert_rate_gen1(mod);
 	if (ret < 0)
 		return ret;
 
-	ret = rsnd_src_set_convert_timing_gen1(mod, rdai);
+	ret = rsnd_src_set_convert_timing_gen1(mod);
 	if (ret < 0)
 		return ret;
 
@@ -479,7 +484,7 @@ static int rsnd_src_init_gen1(struct rsnd_mod *mod,
 }
 
 static int rsnd_src_start_gen1(struct rsnd_mod *mod,
-			       struct rsnd_dai *rdai)
+			       struct rsnd_priv *priv)
 {
 	int id = rsnd_mod_id(mod);
 
@@ -489,7 +494,7 @@ static int rsnd_src_start_gen1(struct rsnd_mod *mod,
 }
 
 static int rsnd_src_stop_gen1(struct rsnd_mod *mod,
-			      struct rsnd_dai *rdai)
+			      struct rsnd_priv *priv)
 {
 	int id = rsnd_mod_id(mod);
 
@@ -510,8 +515,111 @@ static struct rsnd_mod_ops rsnd_src_gen1_ops = {
 /*
  *		Gen2 functions
  */
-static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod *mod,
-					  struct rsnd_dai *rdai)
+#define rsnd_src_irq_enable_gen2(mod)  rsnd_src_irq_ctrol_gen2(mod, 1)
+#define rsnd_src_irq_disable_gen2(mod) rsnd_src_irq_ctrol_gen2(mod, 0)
+static void rsnd_src_irq_ctrol_gen2(struct rsnd_mod *mod, int enable)
+{
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	u32 sys_int_val, int_val, sys_int_mask;
+	int irq = src->info->irq;
+	int id = rsnd_mod_id(mod);
+
+	sys_int_val =
+	sys_int_mask = OUF_SRC(id);
+	int_val = 0x3300;
+
+	/*
+	 * IRQ is not supported on non-DT
+	 * see
+	 *	rsnd_src_probe_gen2()
+	 */
+	if ((irq <= 0) || !enable) {
+		sys_int_val = 0;
+		int_val = 0;
+	}
+
+	rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val);
+	rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val);
+	rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val);
+}
+
+static void rsnd_src_error_clear_gen2(struct rsnd_mod *mod)
+{
+	u32 val = OUF_SRC(rsnd_mod_id(mod));
+
+	rsnd_mod_bset(mod, SCU_SYS_STATUS0, val, val);
+	rsnd_mod_bset(mod, SCU_SYS_STATUS1, val, val);
+}
+
+static bool rsnd_src_error_record_gen2(struct rsnd_mod *mod)
+{
+	u32 val = OUF_SRC(rsnd_mod_id(mod));
+	bool ret = false;
+
+	if ((rsnd_mod_read(mod, SCU_SYS_STATUS0) & val) ||
+	    (rsnd_mod_read(mod, SCU_SYS_STATUS1) & val)) {
+		struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+		src->err++;
+		ret = true;
+	}
+
+	/* clear error static */
+	rsnd_src_error_clear_gen2(mod);
+
+	return ret;
+}
+
+static int _rsnd_src_start_gen2(struct rsnd_mod *mod)
+{
+	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+	u32 val = rsnd_io_to_mod_dvc(io) ? 0x01 : 0x11;
+
+	rsnd_mod_write(mod, SRC_CTRL, val);
+
+	rsnd_src_error_clear_gen2(mod);
+
+	rsnd_src_start(mod);
+
+	rsnd_src_irq_enable_gen2(mod);
+
+	return 0;
+}
+
+static int _rsnd_src_stop_gen2(struct rsnd_mod *mod)
+{
+	rsnd_src_irq_disable_gen2(mod);
+
+	rsnd_mod_write(mod, SRC_CTRL, 0);
+
+	rsnd_src_error_record_gen2(mod);
+
+	return rsnd_src_stop(mod);
+}
+
+static irqreturn_t rsnd_src_interrupt_gen2(int irq, void *data)
+{
+	struct rsnd_mod *mod = data;
+	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+
+	if (!io)
+		return IRQ_NONE;
+
+	if (rsnd_src_error_record_gen2(mod)) {
+		struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+		struct device *dev = rsnd_priv_to_dev(priv);
+
+		_rsnd_src_stop_gen2(mod);
+		_rsnd_src_start_gen2(mod);
+
+		dev_dbg(dev, "%s[%d] restart\n",
+			rsnd_mod_name(mod), rsnd_mod_id(mod));
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod *mod)
 {
 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
@@ -535,7 +643,7 @@ static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod *mod,
 		return -EINVAL;
 	}
 
-	ret = rsnd_src_set_convert_rate(mod, rdai);
+	ret = rsnd_src_set_convert_rate(mod);
 	if (ret < 0)
 		return ret;
 
@@ -563,8 +671,7 @@ static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod *mod,
 	return 0;
 }
 
-static int rsnd_src_set_convert_timing_gen2(struct rsnd_mod *mod,
-					    struct rsnd_dai *rdai)
+static int rsnd_src_set_convert_timing_gen2(struct rsnd_mod *mod)
 {
 	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
 	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
@@ -573,59 +680,78 @@ static int rsnd_src_set_convert_timing_gen2(struct rsnd_mod *mod,
 	int ret;
 
 	if (convert_rate)
-		ret = rsnd_adg_set_convert_clk_gen2(mod, rdai, io,
+		ret = rsnd_adg_set_convert_clk_gen2(mod, io,
 						    runtime->rate,
 						    convert_rate);
 	else
-		ret = rsnd_adg_set_convert_timing_gen2(mod, rdai, io);
+		ret = rsnd_adg_set_convert_timing_gen2(mod, io);
 
 	return ret;
 }
 
 static int rsnd_src_probe_gen2(struct rsnd_mod *mod,
-			       struct rsnd_dai *rdai)
+			       struct rsnd_priv *priv)
 {
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
+	int irq = src->info->irq;
 	int ret;
 
+	if (irq > 0) {
+		/*
+		 * IRQ is not supported on non-DT
+		 * see
+		 *	rsnd_src_irq_enable_gen2()
+		 */
+		ret = devm_request_irq(dev, irq,
+				       rsnd_src_interrupt_gen2,
+				       IRQF_SHARED,
+				       dev_name(dev), mod);
+		if (ret)
+			goto rsnd_src_probe_gen2_fail;
+	}
+
 	ret = rsnd_dma_init(priv,
 			    rsnd_mod_to_dma(mod),
 			    rsnd_info_is_playback(priv, src),
 			    src->info->dma_id);
-	if (ret < 0)
-		dev_err(dev, "%s[%d] (Gen2) failed\n",
-			rsnd_mod_name(mod), rsnd_mod_id(mod));
-	else
-		dev_dbg(dev, "%s[%d] (Gen2) is probed\n",
-			rsnd_mod_name(mod), rsnd_mod_id(mod));
+	if (ret)
+		goto rsnd_src_probe_gen2_fail;
+
+	dev_dbg(dev, "%s[%d] (Gen2) is probed\n",
+		rsnd_mod_name(mod), rsnd_mod_id(mod));
+
+	return ret;
+
+rsnd_src_probe_gen2_fail:
+	dev_err(dev, "%s[%d] (Gen2) failed\n",
+		rsnd_mod_name(mod), rsnd_mod_id(mod));
 
 	return ret;
 }
 
 static int rsnd_src_remove_gen2(struct rsnd_mod *mod,
-				struct rsnd_dai *rdai)
+				struct rsnd_priv *priv)
 {
-	rsnd_dma_quit(rsnd_mod_to_priv(mod), rsnd_mod_to_dma(mod));
+	rsnd_dma_quit(priv, rsnd_mod_to_dma(mod));
 
 	return 0;
 }
 
 static int rsnd_src_init_gen2(struct rsnd_mod *mod,
-			      struct rsnd_dai *rdai)
+			      struct rsnd_priv *priv)
 {
 	int ret;
 
-	ret = rsnd_src_init(mod, rdai);
+	ret = rsnd_src_init(mod);
 	if (ret < 0)
 		return ret;
 
-	ret = rsnd_src_set_convert_rate_gen2(mod, rdai);
+	ret = rsnd_src_set_convert_rate_gen2(mod);
 	if (ret < 0)
 		return ret;
 
-	ret = rsnd_src_set_convert_timing_gen2(mod, rdai);
+	ret = rsnd_src_set_convert_timing_gen2(mod);
 	if (ret < 0)
 		return ret;
 
@@ -633,29 +759,23 @@ static int rsnd_src_init_gen2(struct rsnd_mod *mod,
 }
 
 static int rsnd_src_start_gen2(struct rsnd_mod *mod,
-			       struct rsnd_dai *rdai)
+			       struct rsnd_priv *priv)
 {
-	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
-	struct rsnd_src *src = rsnd_mod_to_src(mod);
-	u32 val = rsnd_io_to_mod_dvc(io) ? 0x01 : 0x11;
-
-	rsnd_dma_start(rsnd_mod_to_dma(&src->mod));
+	rsnd_dma_start(rsnd_mod_to_dma(mod));
 
-	rsnd_mod_write(mod, SRC_CTRL, val);
-
-	return rsnd_src_start(mod);
+	return _rsnd_src_start_gen2(mod);
 }
 
 static int rsnd_src_stop_gen2(struct rsnd_mod *mod,
-			      struct rsnd_dai *rdai)
+			      struct rsnd_priv *priv)
 {
-	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	int ret;
 
-	rsnd_mod_write(mod, SRC_CTRL, 0);
+	ret = _rsnd_src_stop_gen2(mod);
 
-	rsnd_dma_stop(rsnd_mod_to_dma(&src->mod));
+	rsnd_dma_stop(rsnd_mod_to_dma(mod));
 
-	return rsnd_src_stop(mod);
+	return ret;
 }
 
 static struct rsnd_mod_ops rsnd_src_gen2_ops = {
@@ -681,10 +801,11 @@ static void rsnd_of_parse_src(struct platform_device *pdev,
 			      struct rsnd_priv *priv)
 {
 	struct device_node *src_node;
+	struct device_node *np;
 	struct rcar_snd_info *info = rsnd_priv_to_info(priv);
 	struct rsnd_src_platform_info *src_info;
 	struct device *dev = &pdev->dev;
-	int nr;
+	int nr, i;
 
 	if (!of_data)
 		return;
@@ -708,6 +829,13 @@ static void rsnd_of_parse_src(struct platform_device *pdev,
 	info->src_info		= src_info;
 	info->src_info_nr	= nr;
 
+	i = 0;
+	for_each_child_of_node(src_node, np) {
+		src_info[i].irq = irq_of_parse_and_map(np, 0);
+
+		i++;
+	}
+
 rsnd_of_parse_src_end:
 	of_node_put(src_node);
 }
@@ -761,9 +889,8 @@ int rsnd_src_probe(struct platform_device *pdev,
 			return PTR_ERR(clk);
 
 		src->info = &info->src_info[i];
-		src->clk = clk;
 
-		rsnd_mod_init(priv, &src->mod, ops, RSND_MOD_SRC, i);
+		rsnd_mod_init(&src->mod, ops, clk, RSND_MOD_SRC, i);
 
 		dev_dbg(dev, "SRC%d probed\n", i);
 	}