Merge remote-tracking branches 'asoc/topic/omap' and 'asoc/topic/rcar…

…' into asoc-next

Documentation/devicetree/bindings/sound/renesas,rsnd.txt

@@ -20,6 +20,7 @@ Required properties:
 SSI subnode properties:
 - interrupts			: Should contain SSI interrupt for PIO transfer
 - shared-pin			: if shared clock pin
+- pio-transfer			: use PIO transfer mode
 
 SRC subnode properties:
 no properties at this point

sound/soc/davinci/davinci-mcasp.c

@@ -33,10 +33,10 @@
 #include <sound/initval.h>
 #include <sound/soc.h>
 #include <sound/dmaengine_pcm.h>
+#include <sound/omap-pcm.h>
 
 #include "davinci-pcm.h"
 #include "davinci-mcasp.h"
-#include "../omap/omap-pcm.h"
 
 #define MCASP_MAX_AFIFO_DEPTH	64
 

sound/soc/omap/omap-dmic.c

@@ -40,9 +40,9 @@
 #include <sound/initval.h>
 #include <sound/soc.h>
 #include <sound/dmaengine_pcm.h>
+#include <sound/omap-pcm.h>
 
 #include "omap-dmic.h"
-#include "omap-pcm.h"
 
 struct omap_dmic {
 	struct device *dev;

sound/soc/omap/omap-hdmi.c

@@ -34,9 +34,9 @@
 #include <sound/asoundef.h>
 #include <sound/dmaengine_pcm.h>
 #include <video/omapdss.h>
+#include <sound/omap-pcm.h>
 
 #include "omap-hdmi.h"
-#include "omap-pcm.h"
 
 #define DRV_NAME "omap-hdmi-audio-dai"
 

sound/soc/omap/omap-mcbsp.c

@@ -34,11 +34,11 @@
 #include <sound/initval.h>
 #include <sound/soc.h>
 #include <sound/dmaengine_pcm.h>
+#include <sound/omap-pcm.h>
 
 #include <linux/platform_data/asoc-ti-mcbsp.h>
 #include "mcbsp.h"
 #include "omap-mcbsp.h"
-#include "omap-pcm.h"
 
 #define OMAP_MCBSP_RATES	(SNDRV_PCM_RATE_8000_96000)
 

sound/soc/omap/omap-mcpdm.c

@@ -40,9 +40,9 @@
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #include <sound/dmaengine_pcm.h>
+#include <sound/omap-pcm.h>
 
 #include "omap-mcpdm.h"
-#include "omap-pcm.h"
 
 struct mcpdm_link_config {
 	u32 link_mask; /* channel mask for the direction */

sound/soc/sh/rcar/core.c

@@ -255,11 +255,81 @@ int rsnd_dma_available(struct rsnd_dma *dma)
 	return !!dma->chan;
 }
 
+#define DMA_NAME_SIZE 16
+#define MOD_MAX 4 /* MEM/SSI/SRC/DVC */
+static int _rsnd_dma_of_name(char *dma_name, struct rsnd_mod *mod)
+{
+	if (mod)
+		return snprintf(dma_name, DMA_NAME_SIZE / 2, "%s%d",
+			 rsnd_mod_name(mod), rsnd_mod_id(mod));
+	else
+		return snprintf(dma_name, DMA_NAME_SIZE / 2, "mem");
+
+}
+
+static void rsnd_dma_of_name(struct rsnd_dma *dma,
+			     int is_play, char *dma_name)
+{
+	struct rsnd_mod *this = rsnd_dma_to_mod(dma);
+	struct rsnd_dai_stream *io = rsnd_mod_to_io(this);
+	struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
+	struct rsnd_mod *src = rsnd_io_to_mod_src(io);
+	struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
+	struct rsnd_mod *mod[MOD_MAX];
+	struct rsnd_mod *src_mod, *dst_mod;
+	int i, index;
+
+
+	for (i = 0; i < MOD_MAX; i++)
+		mod[i] = NULL;
+
+	/*
+	 * in play case...
+	 *
+	 * src -> dst
+	 *
+	 * mem -> SSI
+	 * mem -> SRC -> SSI
+	 * mem -> SRC -> DVC -> SSI
+	 */
+	mod[0] = NULL; /* for "mem" */
+	index = 1;
+	for (i = 1; i < MOD_MAX; i++) {
+		if (!src) {
+			mod[i] = ssi;
+			break;
+		} else if (!dvc) {
+			mod[i] = src;
+			src = NULL;
+		} else {
+			mod[i] = dvc;
+			dvc = NULL;
+		}
+
+		if (mod[i] == this)
+			index = i;
+	}
+
+	if (is_play) {
+		src_mod = mod[index - 1];
+		dst_mod = mod[index];
+	} else {
+		src_mod = mod[index];
+		dst_mod = mod[index + 1];
+	}
+
+	index = 0;
+	index = _rsnd_dma_of_name(dma_name + index, src_mod);
+	*(dma_name + index++) = '_';
+	index = _rsnd_dma_of_name(dma_name + index, dst_mod);
+}
+
 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
 		  int is_play, int id)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct dma_slave_config cfg;
+	char dma_name[DMA_NAME_SIZE];
 	dma_cap_mask_t mask;
 	int ret;
 
@@ -271,18 +341,23 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
 
+	if (dev->of_node)
+		rsnd_dma_of_name(dma, is_play, dma_name);
+	else
+		snprintf(dma_name, DMA_NAME_SIZE,
+			 is_play ? "tx" : "rx");
+
+	dev_dbg(dev, "dma name : %s\n", dma_name);
+
 	dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
 						     (void *)id, dev,
-						     is_play ? "tx" : "rx");
+						     dma_name);
 	if (!dma->chan) {
 		dev_err(dev, "can't get dma channel\n");
 		return -EIO;
 	}
 
-	cfg.slave_id	= id;
-	cfg.dst_addr	= 0; /* use default addr when playback */
-	cfg.src_addr	= 0; /* use default addr when capture */
-	cfg.direction	= is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
+	rsnd_gen_dma_addr(priv, dma, &cfg, is_play, id);
 
 	ret = dmaengine_slave_config(dma->chan, &cfg);
 	if (ret < 0)
@@ -956,7 +1031,7 @@ static int rsnd_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	priv->dev	= dev;
+	priv->pdev	= pdev;
 	priv->info	= info;
 	spin_lock_init(&priv->lock);
 

sound/soc/sh/rcar/dvc.c

@@ -13,6 +13,9 @@
 #define RSND_DVC_NAME_SIZE	16
 #define RSND_DVC_VOLUME_MAX	100
 #define RSND_DVC_VOLUME_NUM	2
+
+#define DVC_NAME "dvc"
+
 struct rsnd_dvc {
 	struct rsnd_dvc_platform_info *info; /* rcar_snd.h */
 	struct rsnd_mod mod;
@@ -43,6 +46,17 @@ static void rsnd_dvc_volume_update(struct rsnd_mod *mod)
 	rsnd_mod_write(mod, DVC_VOL1R, vol[1]);
 }
 
+static int rsnd_dvc_probe_gen2(struct rsnd_mod *mod,
+			       struct rsnd_dai *rdai)
+{
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+	struct device *dev = rsnd_priv_to_dev(priv);
+
+	dev_dbg(dev, "%s (Gen2) is probed\n", rsnd_mod_name(mod));
+
+	return 0;
+}
+
 static int rsnd_dvc_init(struct rsnd_mod *dvc_mod,
 			 struct rsnd_dai *rdai)
 {
@@ -208,7 +222,8 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
 }
 
 static struct rsnd_mod_ops rsnd_dvc_ops = {
-	.name		= "dvc (gen2)",
+	.name		= DVC_NAME,
+	.probe		= rsnd_dvc_probe_gen2,
 	.init		= rsnd_dvc_init,
 	.quit		= rsnd_dvc_quit,
 	.start		= rsnd_dvc_start,
@@ -255,7 +270,8 @@ int rsnd_dvc_probe(struct platform_device *pdev,
 	priv->dvc	= dvc;
 
 	for_each_rsnd_dvc(dvc, priv, i) {
-		snprintf(name, RSND_DVC_NAME_SIZE, "dvc.%d", i);
+		snprintf(name, RSND_DVC_NAME_SIZE, "%s.%d",
+			 DVC_NAME, i);
 
 		clk = devm_clk_get(dev, name);
 		if (IS_ERR(clk))

sound/soc/sh/rcar/gen.c

@@ -155,6 +155,101 @@ static int rsnd_gen_regmap_init(struct rsnd_priv *priv,
 	return 0;
 }
 
+/*
+ *	DMA read/write register offset
+ *
+ *	RSND_xxx_I_N	for Audio DMAC input
+ *	RSND_xxx_O_N	for Audio DMAC output
+ *	RSND_xxx_I_P	for Audio DMAC peri peri input
+ *	RSND_xxx_O_P	for Audio DMAC peri peri output
+ *
+ *	ex) R-Car H2 case
+ *	      mod        / DMAC in    / DMAC out   / DMAC PP in / DMAC pp out
+ *	SSI : 0xec541000 / 0xec241008 / 0xec24100c / 0xec400000 / 0xec400000
+ *	SCU : 0xec500000 / 0xec000000 / 0xec004000 / 0xec300000 / 0xec304000
+ *	CMD : 0xec500000 / 0xec008000                             0xec308000
+ */
+#define RDMA_SSI_I_N(addr, i)	(addr ##_reg - 0x00300000 + (0x40 * i) + 0x8)
+#define RDMA_SSI_O_N(addr, i)	(addr ##_reg - 0x00300000 + (0x40 * i) + 0xc)
+
+#define RDMA_SSI_I_P(addr, i)	(addr ##_reg - 0x00141000 + (0x1000 * i))
+#define RDMA_SSI_O_P(addr, i)	(addr ##_reg - 0x00141000 + (0x1000 * i))
+
+#define RDMA_SRC_I_N(addr, i)	(addr ##_reg - 0x00500000 + (0x400 * i))
+#define RDMA_SRC_O_N(addr, i)	(addr ##_reg - 0x004fc000 + (0x400 * i))
+
+#define RDMA_SRC_I_P(addr, i)	(addr ##_reg - 0x00200000 + (0x400 * i))
+#define RDMA_SRC_O_P(addr, i)	(addr ##_reg - 0x001fc000 + (0x400 * i))
+
+#define RDMA_CMD_O_N(addr, i)	(addr ##_reg - 0x004f8000 + (0x400 * i))
+#define RDMA_CMD_O_P(addr, i)	(addr ##_reg - 0x001f8000 + (0x400 * i))
+
+void rsnd_gen_dma_addr(struct rsnd_priv *priv,
+		       struct rsnd_dma *dma,
+		       struct dma_slave_config *cfg,
+		       int is_play, int slave_id)
+{
+	struct platform_device *pdev = rsnd_priv_to_pdev(priv);
+	struct device *dev = rsnd_priv_to_dev(priv);
+	struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
+	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+	dma_addr_t ssi_reg = platform_get_resource(pdev,
+				IORESOURCE_MEM, RSND_GEN2_SSI)->start;
+	dma_addr_t src_reg = platform_get_resource(pdev,
+				IORESOURCE_MEM, RSND_GEN2_SCU)->start;
+	int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod);
+	int use_src = !!rsnd_io_to_mod_src(io);
+	int use_dvc = !!rsnd_io_to_mod_dvc(io);
+	int id = rsnd_mod_id(mod);
+	struct dma_addr {
+		dma_addr_t src_addr;
+		dma_addr_t dst_addr;
+	} dma_addrs[2][2][3] = {
+		{ /* SRC */
+			/* Capture */
+			{{ 0,				0 },
+			 { RDMA_SRC_O_N(src, id),	0 },
+			 { RDMA_CMD_O_N(src, id),	0 }},
+			/* Playback */
+			{{ 0,				0, },
+			 { 0,				RDMA_SRC_I_N(src, id) },
+			 { 0,				RDMA_SRC_I_N(src, id) }}
+		}, { /* SSI */
+			/* Capture */
+			{{ RDMA_SSI_O_N(ssi, id),	0 },
+			 { RDMA_SSI_O_P(ssi, id),	RDMA_SRC_I_P(src, id) },
+			 { RDMA_SSI_O_P(ssi, id),	RDMA_SRC_I_P(src, id) }},
+			/* Playback */
+			{{ 0,				RDMA_SSI_I_N(ssi, id) },
+			 { RDMA_SRC_O_P(src, id),	RDMA_SSI_I_P(ssi, id) },
+			 { RDMA_CMD_O_P(src, id),	RDMA_SSI_I_P(ssi, id) }}
+		}
+	};
+
+	cfg->slave_id	= slave_id;
+	cfg->src_addr	= 0;
+	cfg->dst_addr	= 0;
+	cfg->direction	= is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
+
+	/*
+	 * gen1 uses default DMA addr
+	 */
+	if (rsnd_is_gen1(priv))
+		return;
+
+	/* it shouldn't happen */
+	if (use_dvc & !use_src) {
+		dev_err(dev, "DVC is selected without SRC\n");
+		return;
+	}
+
+	cfg->src_addr = dma_addrs[is_ssi][is_play][use_src + use_dvc].src_addr;
+	cfg->dst_addr = dma_addrs[is_ssi][is_play][use_src + use_dvc].dst_addr;
+
+	dev_dbg(dev, "dma%d addr - src : %x / dst : %x\n",
+		id, cfg->src_addr, cfg->dst_addr);
+}
+
 /*
  *		Gen2
  */

sound/soc/sh/rcar/rsnd.h

@@ -281,6 +281,11 @@ int rsnd_gen_probe(struct platform_device *pdev,
 void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
 			       struct rsnd_mod *mod,
 			       enum rsnd_reg reg);
+void rsnd_gen_dma_addr(struct rsnd_priv *priv,
+		       struct rsnd_dma *dma,
+		       struct dma_slave_config *cfg,
+		       int is_play,  int slave_id);
+
 #define rsnd_is_gen1(s)		(((s)->info->flags & RSND_GEN_MASK) == RSND_GEN1)
 #define rsnd_is_gen2(s)		(((s)->info->flags & RSND_GEN_MASK) == RSND_GEN2)
 
@@ -317,7 +322,7 @@ struct rsnd_of_data {
 
 struct rsnd_priv {
 
-	struct device *dev;
+	struct platform_device *pdev;
 	struct rcar_snd_info *info;
 	spinlock_t lock;
 
@@ -357,7 +362,8 @@ struct rsnd_priv {
 	int rdai_nr;
 };
 
-#define rsnd_priv_to_dev(priv)	((priv)->dev)
+#define rsnd_priv_to_pdev(priv)	((priv)->pdev)
+#define rsnd_priv_to_dev(priv)	(&(rsnd_priv_to_pdev(priv)->dev))
 #define rsnd_priv_to_info(priv)	((priv)->info)
 #define rsnd_lock(priv, flags) spin_lock_irqsave(&priv->lock, flags)
 #define rsnd_unlock(priv, flags) spin_unlock_irqrestore(&priv->lock, flags)