Linux-libre 4.5-gnu

1 files changed, 223 insertions, 675 deletions

diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
index 68b439ed2..5eda056d9 100644
--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -20,20 +20,21 @@
 #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 rsnd_mod *dma;
 	struct rsnd_kctrl_cfg_s sen;  /* sync convert enable */
 	struct rsnd_kctrl_cfg_s sync; /* sync convert */
 	u32 convert_rate; /* sampling rate convert */
 	int err;
+	int irq;
 };
 
 #define RSND_SRC_NAME_SIZE 16
 
+#define rsnd_src_get(priv, id) ((struct rsnd_src *)(priv->src) + id)
+#define rsnd_src_to_dma(src) ((src)->dma)
 #define rsnd_src_nr(priv) ((priv)->src_nr)
 #define rsnd_enable_sync_convert(src) ((src)->sen.val)
-#define rsnd_src_of_node(priv) \
-	of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,src")
 
 #define rsnd_mod_to_src(_mod)				\
 	container_of((_mod), struct rsnd_src, mod)
@@ -69,67 +70,16 @@ struct rsnd_src {
  *        |-----------------|
  */
 
-/*
- *	How to use SRC bypass mode for debugging
- *
- * SRC has bypass mode, and it is useful for debugging.
- * In Gen2 case,
- * SRCm_MODE controls whether SRC is used or not
- * SSI_MODE0 controls whether SSIU which receives SRC data
- * is used or not.
- * Both SRCm_MODE/SSI_MODE0 settings are needed if you use SRC,
- * but SRC bypass mode needs SSI_MODE0 only.
- *
- * This driver request
- * struct rsnd_src_platform_info {
- *	u32 convert_rate;
- *	int dma_id;
- * }
- *
- * rsnd_src_convert_rate() indicates
- * above convert_rate, and it controls
- * whether SRC is used or not.
- *
- * ex) doesn't use SRC
- * static struct rsnd_dai_platform_info rsnd_dai = {
- *	.playback = { .ssi = &rsnd_ssi[0], },
- * };
- *
- * ex) uses SRC
- * static struct rsnd_src_platform_info rsnd_src[] = {
- *	RSND_SCU(48000, 0),
- *	...
- * };
- * static struct rsnd_dai_platform_info rsnd_dai = {
- *	.playback = { .ssi = &rsnd_ssi[0], .src = &rsnd_src[0] },
- * };
- *
- * ex) uses SRC bypass mode
- * static struct rsnd_src_platform_info rsnd_src[] = {
- *	RSND_SCU(0, 0),
- *	...
- * };
- * static struct rsnd_dai_platform_info rsnd_dai = {
- *	.playback = { .ssi = &rsnd_ssi[0], .src = &rsnd_src[0] },
- * };
- *
- */
-
-/*
- *		Gen1/Gen2 common functions
- */
-static void rsnd_src_soft_reset(struct rsnd_mod *mod)
+static void rsnd_src_activation(struct rsnd_mod *mod)
 {
 	rsnd_mod_write(mod, SRC_SWRSR, 0);
 	rsnd_mod_write(mod, SRC_SWRSR, 1);
 }
 
-
-#define rsnd_src_initialize_lock(mod)	__rsnd_src_initialize_lock(mod, 1)
-#define rsnd_src_initialize_unlock(mod)	__rsnd_src_initialize_lock(mod, 0)
-static void __rsnd_src_initialize_lock(struct rsnd_mod *mod, u32 enable)
+static void rsnd_src_halt(struct rsnd_mod *mod)
 {
-	rsnd_mod_write(mod, SRC_SRCIR, enable);
+	rsnd_mod_write(mod, SRC_SRCIR, 1);
+	rsnd_mod_write(mod, SRC_SWRSR, 0);
 }
 
 static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
@@ -143,99 +93,6 @@ static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
 					is_play ? "rx" : "tx");
 }
 
-int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
-			struct rsnd_dai_stream *io,
-			int use_busif)
-{
-	struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
-	int ssi_id = rsnd_mod_id(ssi_mod);
-
-	/*
-	 * SSI_MODE0
-	 */
-	rsnd_mod_bset(ssi_mod, SSI_MODE0, (1 << ssi_id),
-		      !use_busif << ssi_id);
-
-	/*
-	 * SSI_MODE1
-	 */
-	if (rsnd_ssi_is_pin_sharing(io)) {
-		int shift = -1;
-		switch (ssi_id) {
-		case 1:
-			shift = 0;
-			break;
-		case 2:
-			shift = 2;
-			break;
-		case 4:
-			shift = 16;
-			break;
-		}
-
-		if (shift >= 0)
-			rsnd_mod_bset(ssi_mod, SSI_MODE1,
-				      0x3 << shift,
-				      rsnd_rdai_is_clk_master(rdai) ?
-				      0x2 << shift : 0x1 << shift);
-	}
-
-	/*
-	 * DMA settings for SSIU
-	 */
-	if (use_busif) {
-		u32 val = rsnd_get_dalign(ssi_mod, io);
-
-		rsnd_mod_write(ssi_mod, SSI_BUSIF_ADINR,
-			       rsnd_get_adinr_bit(ssi_mod, io));
-		rsnd_mod_write(ssi_mod, SSI_BUSIF_MODE,  1);
-		rsnd_mod_write(ssi_mod, SSI_CTRL, 0x1);
-
-		rsnd_mod_write(ssi_mod, SSI_BUSIF_DALIGN, val);
-	}
-
-	return 0;
-}
-
-int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod,
-		       struct rsnd_dai_stream *io)
-{
-	/*
-	 * DMA settings for SSIU
-	 */
-	rsnd_mod_write(ssi_mod, SSI_CTRL, 0);
-
-	return 0;
-}
-
-int rsnd_src_ssi_irq_enable(struct rsnd_mod *ssi_mod)
-{
-	struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
-
-	if (rsnd_is_gen1(priv))
-		return 0;
-
-	/* enable SSI interrupt if Gen2 */
-	rsnd_mod_write(ssi_mod, SSI_INT_ENABLE,
-		       rsnd_ssi_is_dma_mode(ssi_mod) ?
-		       0x0e000000 : 0x0f000000);
-
-	return 0;
-}
-
-int rsnd_src_ssi_irq_disable(struct rsnd_mod *ssi_mod)
-{
-	struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
-
-	if (rsnd_is_gen1(priv))
-		return 0;
-
-	/* disable SSI interrupt if Gen2 */
-	rsnd_mod_write(ssi_mod, SSI_INT_ENABLE, 0x00000000);
-
-	return 0;
-}
-
 static u32 rsnd_src_convert_rate(struct rsnd_dai_stream *io,
 				 struct rsnd_src *src)
 {
@@ -283,34 +140,6 @@ 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_stream *io)
-{
-	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
-	struct rsnd_src *src = rsnd_mod_to_src(mod);
-	u32 convert_rate = rsnd_src_convert_rate(io, src);
-	u32 fsrate = 0;
-
-	if (convert_rate)
-		fsrate = 0x0400000 / convert_rate * runtime->rate;
-
-	/* Set channel number and output bit length */
-	rsnd_mod_write(mod, SRC_ADINR, rsnd_get_adinr_bit(mod, io));
-
-	/* Enable the initial value of IFS */
-	if (fsrate) {
-		rsnd_mod_write(mod, SRC_IFSCR, 1);
-
-		/* Set initial value of IFS */
-		rsnd_mod_write(mod, SRC_IFSVR, fsrate);
-	}
-
-	/* use DMA transfer */
-	rsnd_mod_write(mod, SRC_BUSIF_MODE, 1);
-
-	return 0;
-}
-
 static int rsnd_src_hw_params(struct rsnd_mod *mod,
 			      struct rsnd_dai_stream *io,
 			      struct snd_pcm_substream *substream,
@@ -319,9 +148,6 @@ static int rsnd_src_hw_params(struct rsnd_mod *mod,
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
 	struct snd_soc_pcm_runtime *fe = substream->private_data;
 
-	/* default value (mainly for non-DT) */
-	src->convert_rate = src->info->convert_rate;
-
 	/*
 	 * SRC assumes that it is used under DPCM if user want to use
 	 * sampling rate convert. Then, SRC should be FE.
@@ -347,250 +173,112 @@ static int rsnd_src_hw_params(struct rsnd_mod *mod,
 	return 0;
 }
 
-static int rsnd_src_init(struct rsnd_mod *mod,
-			 struct rsnd_priv *priv)
-{
-	struct rsnd_src *src = rsnd_mod_to_src(mod);
-
-	rsnd_mod_power_on(mod);
-
-	rsnd_src_soft_reset(mod);
-
-	rsnd_src_initialize_lock(mod);
-
-	src->err = 0;
-
-	/* reset sync convert_rate */
-	src->sync.val = 0;
-
-	return 0;
-}
-
-static int rsnd_src_quit(struct rsnd_mod *mod,
-			 struct rsnd_dai_stream *io,
-			 struct rsnd_priv *priv)
+static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
+				      struct rsnd_mod *mod)
 {
-	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
+	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	u32 convert_rate = rsnd_src_convert_rate(io, src);
+	u32 ifscr, fsrate, adinr;
+	u32 cr, route;
+	u32 bsdsr, bsisr;
+	uint ratio;
 
-	rsnd_mod_power_off(mod);
-
-	if (src->err)
-		dev_warn(dev, "%s[%d] under/over flow err = %d\n",
-			 rsnd_mod_name(mod), rsnd_mod_id(mod), src->err);
-
-	src->convert_rate = 0;
-
-	/* reset sync convert_rate */
-	src->sync.val = 0;
-
-	return 0;
-}
-
-static int rsnd_src_start(struct rsnd_mod *mod)
-{
-	rsnd_src_initialize_unlock(mod);
-
-	return 0;
-}
-
-static int rsnd_src_stop(struct rsnd_mod *mod)
-{
-	/* nothing to do */
-	return 0;
-}
+	if (!runtime)
+		return;
 
-/*
- *		Gen1 functions
- */
-static int rsnd_src_set_route_gen1(struct rsnd_dai_stream *io,
-				   struct rsnd_mod *mod)
-{
-	struct src_route_config {
-		u32 mask;
-		int shift;
-	} routes[] = {
-		{ 0xF,  0, }, /* 0 */
-		{ 0xF,  4, }, /* 1 */
-		{ 0xF,  8, }, /* 2 */
-		{ 0x7, 12, }, /* 3 */
-		{ 0x7, 16, }, /* 4 */
-		{ 0x7, 20, }, /* 5 */
-		{ 0x7, 24, }, /* 6 */
-		{ 0x3, 28, }, /* 7 */
-		{ 0x3, 30, }, /* 8 */
-	};
-	u32 mask;
-	u32 val;
-	int id;
+	/* 6 - 1/6 are very enough ratio for SRC_BSDSR */
+	if (!convert_rate)
+		ratio = 0;
+	else if (convert_rate > runtime->rate)
+		ratio = 100 * convert_rate / runtime->rate;
+	else
+		ratio = 100 * runtime->rate / convert_rate;
 
-	id = rsnd_mod_id(mod);
-	if (id < 0 || id >= ARRAY_SIZE(routes))
-		return -EIO;
+	if (ratio > 600) {
+		dev_err(dev, "FSO/FSI ratio error\n");
+		return;
+	}
 
 	/*
-	 * SRC_ROUTE_SELECT
+	 *	SRC_ADINR
 	 */
-	val = rsnd_io_is_play(io) ? 0x1 : 0x2;
-	val = val		<< routes[id].shift;
-	mask = routes[id].mask	<< routes[id].shift;
-
-	rsnd_mod_bset(mod, SRC_ROUTE_SEL, mask, val);
-
-	return 0;
-}
-
-static int rsnd_src_set_convert_timing_gen1(struct rsnd_dai_stream *io,
-					    struct rsnd_mod *mod)
-{
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct rsnd_src *src = rsnd_mod_to_src(mod);
-	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
-	u32 convert_rate = rsnd_src_convert_rate(io, src);
-	u32 mask;
-	u32 val;
-	int shift;
-	int id = rsnd_mod_id(mod);
-	int ret;
+	adinr = rsnd_get_adinr_bit(mod, io) |
+		rsnd_get_adinr_chan(mod, io);
 
 	/*
-	 * SRC_TIMING_SELECT
+	 *	SRC_IFSCR / SRC_IFSVR
 	 */
-	shift	= (id % 4) * 8;
-	mask	= 0x1F << shift;
+	ifscr = 0;
+	fsrate = 0;
+	if (convert_rate) {
+		ifscr = 1;
+		fsrate = 0x0400000 / convert_rate * runtime->rate;
+	}
 
 	/*
-	 * ADG is used as source clock if SRC was used,
-	 * then, SSI WS is used as destination clock.
-	 * SSI WS is used as source clock if SRC is not used
-	 * (when playback, source/destination become reverse when capture)
+	 *	SRC_SRCCR / SRC_ROUTE_MODE0
 	 */
-	ret = 0;
+	cr	= 0x00011110;
+	route	= 0x0;
 	if (convert_rate) {
-		/* use ADG */
-		val = 0;
-		ret = rsnd_adg_set_convert_clk_gen1(priv, mod,
-						    runtime->rate,
-						    convert_rate);
-	} else if (8 == id) {
-		/* use SSI WS, but SRU8 is special */
-		val = id << shift;
-	} else {
-		/* use SSI WS */
-		val = (id + 1) << shift;
-	}
+		route	= 0x1;
 
-	if (ret < 0)
-		return ret;
+		if (rsnd_enable_sync_convert(src)) {
+			cr |= 0x1;
+			route |= rsnd_io_is_play(io) ?
+				(0x1 << 24) : (0x1 << 25);
+		}
+	}
 
-	switch (id / 4) {
-	case 0:
-		rsnd_mod_bset(mod, SRC_TMG_SEL0, mask, val);
-		break;
-	case 1:
-		rsnd_mod_bset(mod, SRC_TMG_SEL1, mask, val);
+	/*
+	 * SRC_BSDSR / SRC_BSISR
+	 */
+	switch (rsnd_mod_id(mod)) {
+	case 5:
+	case 6:
+	case 7:
+	case 8:
+		bsdsr = 0x02400000; /* 6 - 1/6 */
+		bsisr = 0x00100060; /* 6 - 1/6 */
 		break;
-	case 2:
-		rsnd_mod_bset(mod, SRC_TMG_SEL2, mask, val);
+	default:
+		bsdsr = 0x01800000; /* 6 - 1/6 */
+		bsisr = 0x00100060 ;/* 6 - 1/6 */
 		break;
 	}
 
-	return 0;
-}
-
-static int rsnd_src_set_convert_rate_gen1(struct rsnd_mod *mod,
-					  struct rsnd_dai_stream *io)
-{
-	struct rsnd_src *src = rsnd_mod_to_src(mod);
-	int ret;
-
-	ret = rsnd_src_set_convert_rate(mod, io);
-	if (ret < 0)
-		return ret;
-
-	/* Select SRC mode (fixed value) */
-	rsnd_mod_write(mod, SRC_SRCCR, 0x00010110);
-
-	/* Set the restriction value of the FS ratio (98%) */
-	rsnd_mod_write(mod, SRC_MNFSR,
-		       rsnd_mod_read(mod, SRC_IFSVR) / 100 * 98);
-
-	/* Gen1/Gen2 are not compatible */
-	if (rsnd_src_convert_rate(io, src))
-		rsnd_mod_write(mod, SRC_ROUTE_MODE0, 1);
-
-	/* no SRC_BFSSR settings, since SRC_SRCCR::BUFMD is 0 */
-
-	return 0;
-}
-
-static int rsnd_src_init_gen1(struct rsnd_mod *mod,
-			      struct rsnd_dai_stream *io,
-			      struct rsnd_priv *priv)
-{
-	int ret;
-
-	ret = rsnd_src_init(mod, priv);
-	if (ret < 0)
-		return ret;
-
-	ret = rsnd_src_set_route_gen1(io, mod);
-	if (ret < 0)
-		return ret;
-
-	ret = rsnd_src_set_convert_rate_gen1(mod, io);
-	if (ret < 0)
-		return ret;
-
-	ret = rsnd_src_set_convert_timing_gen1(io, mod);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int rsnd_src_start_gen1(struct rsnd_mod *mod,
-			       struct rsnd_dai_stream *io,
-			       struct rsnd_priv *priv)
-{
-	int id = rsnd_mod_id(mod);
-
-	rsnd_mod_bset(mod, SRC_ROUTE_CTRL, (1 << id), (1 << id));
-
-	return rsnd_src_start(mod);
-}
-
-static int rsnd_src_stop_gen1(struct rsnd_mod *mod,
-			      struct rsnd_dai_stream *io,
-			      struct rsnd_priv *priv)
-{
-	int id = rsnd_mod_id(mod);
+	rsnd_mod_write(mod, SRC_SRCIR, 1);	/* initialize */
+	rsnd_mod_write(mod, SRC_ADINR, adinr);
+	rsnd_mod_write(mod, SRC_IFSCR, ifscr);
+	rsnd_mod_write(mod, SRC_IFSVR, fsrate);
+	rsnd_mod_write(mod, SRC_SRCCR, cr);
+	rsnd_mod_write(mod, SRC_BSDSR, bsdsr);
+	rsnd_mod_write(mod, SRC_BSISR, bsisr);
+	rsnd_mod_write(mod, SRC_SRCIR, 0);	/* cancel initialize */
 
-	rsnd_mod_bset(mod, SRC_ROUTE_CTRL, (1 << id), 0);
+	rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
+	rsnd_mod_write(mod, SRC_I_BUSIF_MODE, 1);
+	rsnd_mod_write(mod, SRC_O_BUSIF_MODE, 1);
+	rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
 
-	return rsnd_src_stop(mod);
+	if (convert_rate)
+		rsnd_adg_set_convert_clk_gen2(mod, io,
+					      runtime->rate,
+					      convert_rate);
+	else
+		rsnd_adg_set_convert_timing_gen2(mod, io);
 }
 
-static struct rsnd_mod_ops rsnd_src_gen1_ops = {
-	.name	= SRC_NAME,
-	.dma_req = rsnd_src_dma_req,
-	.init	= rsnd_src_init_gen1,
-	.quit	= rsnd_src_quit,
-	.start	= rsnd_src_start_gen1,
-	.stop	= rsnd_src_stop_gen1,
-	.hw_params = rsnd_src_hw_params,
-};
-
-/*
- *		Gen2 functions
- */
-#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)
+#define rsnd_src_irq_enable(mod)  rsnd_src_irq_ctrol(mod, 1)
+#define rsnd_src_irq_disable(mod) rsnd_src_irq_ctrol(mod, 0)
+static void rsnd_src_irq_ctrol(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 irq = src->irq;
 	int id = rsnd_mod_id(mod);
 
 	sys_int_val =
@@ -600,7 +288,7 @@ static void rsnd_src_irq_ctrol_gen2(struct rsnd_mod *mod, int enable)
 	/*
 	 * IRQ is not supported on non-DT
 	 * see
-	 *	rsnd_src_probe_gen2()
+	 *	rsnd_src_probe_()
 	 */
 	if ((irq <= 0) || !enable) {
 		sys_int_val = 0;
@@ -620,7 +308,7 @@ static void rsnd_src_irq_ctrol_gen2(struct rsnd_mod *mod, int enable)
 	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)
+static void rsnd_src_status_clear(struct rsnd_mod *mod)
 {
 	u32 val = OUF_SRC(rsnd_mod_id(mod));
 
@@ -628,7 +316,7 @@ static void rsnd_src_error_clear_gen2(struct rsnd_mod *mod)
 	rsnd_mod_bset(mod, SCU_SYS_STATUS1, val, val);
 }
 
-static bool rsnd_src_error_record_gen2(struct rsnd_mod *mod)
+static bool rsnd_src_record_error(struct rsnd_mod *mod)
 {
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
 	u32 val0, val1;
@@ -652,22 +340,16 @@ static bool rsnd_src_error_record_gen2(struct rsnd_mod *mod)
 		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)
+static int rsnd_src_start(struct rsnd_mod *mod,
+			  struct rsnd_dai_stream *io,
+			  struct rsnd_priv *priv)
 {
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
 	u32 val;
 
-	val = rsnd_get_dalign(mod, io);
-
-	rsnd_mod_write(mod, SRC_BUSIF_DALIGN, val);
-
 	/*
 	 * WORKAROUND
 	 *
@@ -678,247 +360,149 @@ static int _rsnd_src_start_gen2(struct rsnd_mod *mod,
 
 	rsnd_mod_write(mod, SRC_CTRL, val);
 
-	rsnd_src_error_clear_gen2(mod);
-
-	rsnd_src_start(mod);
+	return 0;
+}
 
-	rsnd_src_irq_enable_gen2(mod);
+static int rsnd_src_stop(struct rsnd_mod *mod,
+			 struct rsnd_dai_stream *io,
+			 struct rsnd_priv *priv)
+{
+	/*
+	 * stop SRC output only
+	 * see rsnd_src_quit
+	 */
+	rsnd_mod_write(mod, SRC_CTRL, 0x01);
 
 	return 0;
 }
 
-static int _rsnd_src_stop_gen2(struct rsnd_mod *mod)
+static int rsnd_src_init(struct rsnd_mod *mod,
+			 struct rsnd_dai_stream *io,
+			 struct rsnd_priv *priv)
 {
-	rsnd_src_irq_disable_gen2(mod);
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
 
-	rsnd_mod_write(mod, SRC_CTRL, 0);
+	rsnd_mod_power_on(mod);
+
+	rsnd_src_activation(mod);
+
+	rsnd_src_set_convert_rate(io, mod);
 
-	rsnd_src_error_record_gen2(mod);
+	rsnd_src_status_clear(mod);
+
+	rsnd_src_irq_enable(mod);
+
+	src->err = 0;
 
-	return rsnd_src_stop(mod);
+	/* reset sync convert_rate */
+	src->sync.val = 0;
+
+	return 0;
 }
 
-static void __rsnd_src_interrupt_gen2(struct rsnd_mod *mod,
-				      struct rsnd_dai_stream *io)
+static int rsnd_src_quit(struct rsnd_mod *mod,
+			 struct rsnd_dai_stream *io,
+			 struct rsnd_priv *priv)
 {
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-
-	spin_lock(&priv->lock);
+	struct rsnd_src *src = rsnd_mod_to_src(mod);
+	struct device *dev = rsnd_priv_to_dev(priv);
 
-	/* ignore all cases if not working */
-	if (!rsnd_io_is_working(io))
-		goto rsnd_src_interrupt_gen2_out;
+	rsnd_src_irq_disable(mod);
 
-	if (rsnd_src_error_record_gen2(mod)) {
-		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);
+	/* stop both out/in */
+	rsnd_mod_write(mod, SRC_CTRL, 0);
 
-		dev_dbg(dev, "%s[%d] restart\n",
-			rsnd_mod_name(mod), rsnd_mod_id(mod));
+	rsnd_src_halt(mod);
 
-		_rsnd_src_stop_gen2(mod);
-		if (src->err < 1024)
-			_rsnd_src_start_gen2(mod, io);
-		else
-			dev_warn(dev, "no more SRC restart\n");
-	}
+	rsnd_mod_power_off(mod);
 
-rsnd_src_interrupt_gen2_out:
-	spin_unlock(&priv->lock);
-}
+	if (src->err)
+		dev_warn(dev, "%s[%d] under/over flow err = %d\n",
+			 rsnd_mod_name(mod), rsnd_mod_id(mod), src->err);
 
-static irqreturn_t rsnd_src_interrupt_gen2(int irq, void *data)
-{
-	struct rsnd_mod *mod = data;
+	src->convert_rate = 0;
 
-	rsnd_mod_interrupt(mod, __rsnd_src_interrupt_gen2);
+	/* reset sync convert_rate */
+	src->sync.val = 0;
 
-	return IRQ_HANDLED;
+	return 0;
 }
 
-static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod *mod,
-					  struct rsnd_dai_stream *io)
+static void __rsnd_src_interrupt(struct rsnd_mod *mod,
+				 struct rsnd_dai_stream *io)
 {
 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct device *dev = rsnd_priv_to_dev(priv);
-	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
-	u32 convert_rate = rsnd_src_convert_rate(io, src);
-	u32 cr, route;
-	uint ratio;
-	int ret;
+	struct device *dev = rsnd_priv_to_dev(priv);
 
-	/* 6 - 1/6 are very enough ratio for SRC_BSDSR */
-	if (!convert_rate)
-		ratio = 0;
-	else if (convert_rate > runtime->rate)
-		ratio = 100 * convert_rate / runtime->rate;
-	else
-		ratio = 100 * runtime->rate / convert_rate;
+	spin_lock(&priv->lock);
 
-	if (ratio > 600) {
-		dev_err(dev, "FSO/FSI ratio error\n");
-		return -EINVAL;
-	}
+	/* ignore all cases if not working */
+	if (!rsnd_io_is_working(io))
+		goto rsnd_src_interrupt_out;
 
-	ret = rsnd_src_set_convert_rate(mod, io);
-	if (ret < 0)
-		return ret;
+	if (rsnd_src_record_error(mod)) {
 
-	cr	= 0x00011110;
-	route	= 0x0;
-	if (convert_rate) {
-		route	= 0x1;
+		dev_dbg(dev, "%s[%d] restart\n",
+			rsnd_mod_name(mod), rsnd_mod_id(mod));
 
-		if (rsnd_enable_sync_convert(src)) {
-			cr |= 0x1;
-			route |= rsnd_io_is_play(io) ?
-				(0x1 << 24) : (0x1 << 25);
-		}
+		rsnd_src_stop(mod, io, priv);
+		rsnd_src_start(mod, io, priv);
 	}
 
-	rsnd_mod_write(mod, SRC_SRCCR, cr);
-	rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
+	if (src->err > 1024) {
+		rsnd_src_irq_disable(mod);
 
-	switch (rsnd_mod_id(mod)) {
-	case 5:
-	case 6:
-	case 7:
-	case 8:
-		rsnd_mod_write(mod, SRC_BSDSR, 0x02400000);
-		break;
-	default:
-		rsnd_mod_write(mod, SRC_BSDSR, 0x01800000);
-		break;
+		dev_warn(dev, "no more %s[%d] restart\n",
+			 rsnd_mod_name(mod), rsnd_mod_id(mod));
 	}
 
-	rsnd_mod_write(mod, SRC_BSISR, 0x00100060);
+	rsnd_src_status_clear(mod);
+rsnd_src_interrupt_out:
 
-	return 0;
+	spin_unlock(&priv->lock);
 }
 
-static int rsnd_src_set_convert_timing_gen2(struct rsnd_dai_stream *io,
-					    struct rsnd_mod *mod)
+static irqreturn_t rsnd_src_interrupt(int irq, void *data)
 {
-	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
-	struct rsnd_src *src = rsnd_mod_to_src(mod);
-	u32 convert_rate = rsnd_src_convert_rate(io, src);
-	int ret;
+	struct rsnd_mod *mod = data;
 
-	if (convert_rate)
-		ret = rsnd_adg_set_convert_clk_gen2(mod, io,
-						    runtime->rate,
-						    convert_rate);
-	else
-		ret = rsnd_adg_set_convert_timing_gen2(mod, io);
+	rsnd_mod_interrupt(mod, __rsnd_src_interrupt);
 
-	return ret;
+	return IRQ_HANDLED;
 }
 
-static int rsnd_src_probe_gen2(struct rsnd_mod *mod,
-			       struct rsnd_dai_stream *io,
-			       struct rsnd_priv *priv)
+static int rsnd_src_probe_(struct rsnd_mod *mod,
+			   struct rsnd_dai_stream *io,
+			   struct rsnd_priv *priv)
 {
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
-	int irq = src->info->irq;
+	int irq = src->irq;
 	int ret;
 
 	if (irq > 0) {
 		/*
 		 * IRQ is not supported on non-DT
 		 * see
-		 *	rsnd_src_irq_enable_gen2()
+		 *	rsnd_src_irq_enable()
 		 */
 		ret = devm_request_irq(dev, irq,
-				       rsnd_src_interrupt_gen2,
+				       rsnd_src_interrupt,
 				       IRQF_SHARED,
 				       dev_name(dev), mod);
 		if (ret)
 			return ret;
 	}
 
-	ret = rsnd_dma_init(io,
-			    rsnd_mod_to_dma(mod),
-			    src->info->dma_id);
+	src->dma = rsnd_dma_attach(io, mod, 0);
+	if (IS_ERR(src->dma))
+		return PTR_ERR(src->dma);
 
 	return ret;
 }
 
-static int rsnd_src_remove_gen2(struct rsnd_mod *mod,
-				struct rsnd_dai_stream *io,
-				struct rsnd_priv *priv)
-{
-	rsnd_dma_quit(io, rsnd_mod_to_dma(mod));
-
-	return 0;
-}
-
-static int rsnd_src_init_gen2(struct rsnd_mod *mod,
-			      struct rsnd_dai_stream *io,
-			      struct rsnd_priv *priv)
-{
-	int ret;
-
-	ret = rsnd_src_init(mod, priv);
-	if (ret < 0)
-		return ret;
-
-	ret = rsnd_src_set_convert_rate_gen2(mod, io);
-	if (ret < 0)
-		return ret;
-
-	ret = rsnd_src_set_convert_timing_gen2(io, mod);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int rsnd_src_start_gen2(struct rsnd_mod *mod,
-			       struct rsnd_dai_stream *io,
-			       struct rsnd_priv *priv)
-{
-	rsnd_dma_start(io, rsnd_mod_to_dma(mod));
-
-	return _rsnd_src_start_gen2(mod, io);
-}
-
-static int rsnd_src_stop_gen2(struct rsnd_mod *mod,
-			      struct rsnd_dai_stream *io,
-			      struct rsnd_priv *priv)
-{
-	int ret;
-
-	ret = _rsnd_src_stop_gen2(mod);
-
-	rsnd_dma_stop(io, rsnd_mod_to_dma(mod));
-
-	return ret;
-}
-
-static void rsnd_src_reconvert_update(struct rsnd_dai_stream *io,
-				      struct rsnd_mod *mod)
-{
-	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
-	struct rsnd_src *src = rsnd_mod_to_src(mod);
-	u32 convert_rate = rsnd_src_convert_rate(io, src);
-	u32 fsrate;
-
-	if (!runtime)
-		return;
-
-	if (!convert_rate)
-		convert_rate = runtime->rate;
-
-	fsrate = 0x0400000 / convert_rate * runtime->rate;
-
-	/* update IFS */
-	rsnd_mod_write(mod, SRC_IFSVR, fsrate);
-}
-
-static int rsnd_src_pcm_new_gen2(struct rsnd_mod *mod,
+static int rsnd_src_pcm_new(struct rsnd_mod *mod,
 			    struct rsnd_dai_stream *io,
 			    struct snd_soc_pcm_runtime *rtd)
 {
@@ -950,7 +534,7 @@ static int rsnd_src_pcm_new_gen2(struct rsnd_mod *mod,
 			       rsnd_io_is_play(io) ?
 			       "SRC Out Rate Switch" :
 			       "SRC In Rate Switch",
-			       rsnd_src_reconvert_update,
+			       rsnd_src_set_convert_rate,
 			       &src->sen, 1);
 	if (ret < 0)
 		return ret;
@@ -959,23 +543,22 @@ static int rsnd_src_pcm_new_gen2(struct rsnd_mod *mod,
 			       rsnd_io_is_play(io) ?
 			       "SRC Out Rate" :
 			       "SRC In Rate",
-			       rsnd_src_reconvert_update,
+			       rsnd_src_set_convert_rate,
 			       &src->sync, 192000);
 
 	return ret;
 }
 
-static struct rsnd_mod_ops rsnd_src_gen2_ops = {
+static struct rsnd_mod_ops rsnd_src_ops = {
 	.name	= SRC_NAME,
 	.dma_req = rsnd_src_dma_req,
-	.probe	= rsnd_src_probe_gen2,
-	.remove	= rsnd_src_remove_gen2,
-	.init	= rsnd_src_init_gen2,
+	.probe	= rsnd_src_probe_,
+	.init	= rsnd_src_init,
 	.quit	= rsnd_src_quit,
-	.start	= rsnd_src_start_gen2,
-	.stop	= rsnd_src_stop_gen2,
+	.start	= rsnd_src_start,
+	.stop	= rsnd_src_stop,
 	.hw_params = rsnd_src_hw_params,
-	.pcm_new = rsnd_src_pcm_new_gen2,
+	.pcm_new = rsnd_src_pcm_new,
 };
 
 struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
@@ -983,113 +566,78 @@ struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
 	if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv)))
 		id = 0;
 
-	return rsnd_mod_get((struct rsnd_src *)(priv->src) + id);
+	return rsnd_mod_get(rsnd_src_get(priv, id));
 }
 
-static void rsnd_of_parse_src(struct platform_device *pdev,
-			      const struct rsnd_of_data *of_data,
-			      struct rsnd_priv *priv)
+int rsnd_src_probe(struct rsnd_priv *priv)
 {
-	struct device_node *src_node;
+	struct device_node *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, i;
-
-	if (!of_data)
-		return;
-
-	src_node = rsnd_src_of_node(priv);
-	if (!src_node)
-		return;
-
-	nr = of_get_child_count(src_node);
-	if (!nr)
-		goto rsnd_of_parse_src_end;
-
-	src_info = devm_kzalloc(dev,
-				sizeof(struct rsnd_src_platform_info) * nr,
-				GFP_KERNEL);
-	if (!src_info) {
-		dev_err(dev, "src info allocation error\n");
-		goto rsnd_of_parse_src_end;
-	}
-
-	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);
-}
-
-int rsnd_src_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 device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_src *src;
-	struct rsnd_mod_ops *ops;
 	struct clk *clk;
 	char name[RSND_SRC_NAME_SIZE];
 	int i, nr, ret;
 
-	ops = NULL;
-	if (rsnd_is_gen1(priv)) {
-		ops = &rsnd_src_gen1_ops;
-		dev_warn(dev, "Gen1 support will be removed soon\n");
-	}
-	if (rsnd_is_gen2(priv))
-		ops = &rsnd_src_gen2_ops;
-	if (!ops) {
-		dev_err(dev, "unknown Generation\n");
-		return -EIO;
-	}
+	/* This driver doesn't support Gen1 at this point */
+	if (rsnd_is_gen1(priv))
+		return 0;
 
-	rsnd_of_parse_src(pdev, of_data, priv);
+	node = rsnd_src_of_node(priv);
+	if (!node)
+		return 0; /* not used is not error */
 
-	/*
-	 * init SRC
-	 */
-	nr	= info->src_info_nr;
-	if (!nr)
-		return 0;
+	nr = of_get_child_count(node);
+	if (!nr) {
+		ret = -EINVAL;
+		goto rsnd_src_probe_done;
+	}
 
 	src	= devm_kzalloc(dev, sizeof(*src) * nr, GFP_KERNEL);
-	if (!src)
-		return -ENOMEM;
+	if (!src) {
+		ret = -ENOMEM;
+		goto rsnd_src_probe_done;
+	}
 
 	priv->src_nr	= nr;
 	priv->src	= src;
 
-	for_each_rsnd_src(src, priv, i) {
+	i = 0;
+	for_each_child_of_node(node, np) {
+		src = rsnd_src_get(priv, i);
+
 		snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d",
 			 SRC_NAME, i);
 
-		clk = devm_clk_get(dev, name);
-		if (IS_ERR(clk))
-			return PTR_ERR(clk);
+		src->irq = irq_of_parse_and_map(np, 0);
+		if (!src->irq) {
+			ret = -EINVAL;
+			goto rsnd_src_probe_done;
+		}
 
-		src->info = &info->src_info[i];
+		clk = devm_clk_get(dev, name);
+		if (IS_ERR(clk)) {
+			ret = PTR_ERR(clk);
+			goto rsnd_src_probe_done;
+		}
 
-		ret = rsnd_mod_init(priv, rsnd_mod_get(src), ops, clk, RSND_MOD_SRC, i);
+		ret = rsnd_mod_init(priv, rsnd_mod_get(src),
+				    &rsnd_src_ops, clk, RSND_MOD_SRC, i);
 		if (ret)
-			return ret;
+			goto rsnd_src_probe_done;
+
+		i++;
 	}
 
-	return 0;
+	ret = 0;
+
+rsnd_src_probe_done:
+	of_node_put(node);
+
+	return ret;
 }
 
-void rsnd_src_remove(struct platform_device *pdev,
-		     struct rsnd_priv *priv)
+void rsnd_src_remove(struct rsnd_priv *priv)
 {
 	struct rsnd_src *src;
 	int i;