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-rw-r--r--sound/soc/sh/rcar/core.c11
-rw-r--r--sound/soc/sh/rcar/dma.c88
-rw-r--r--sound/soc/sh/rcar/dvc.c9
-rw-r--r--sound/soc/sh/rcar/rsnd.h6
-rw-r--r--sound/soc/sh/rcar/src.c13
-rw-r--r--sound/soc/sh/rcar/ssi.c17
6 files changed, 95 insertions, 49 deletions
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 3b6e21948c71..7b995f025e22 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -137,15 +137,12 @@ char *rsnd_mod_name(struct rsnd_mod *mod)
return mod->ops->name;
}
-char *rsnd_mod_dma_name(struct rsnd_mod *mod)
+struct dma_chan *rsnd_mod_dma_req(struct rsnd_mod *mod)
{
- if (!mod || !mod->ops)
- return "unknown";
-
- if (!mod->ops->dma_name)
- return mod->ops->name;
+ if (!mod || !mod->ops || !mod->ops->dma_req)
+ return NULL;
- return mod->ops->dma_name(mod);
+ return mod->ops->dma_req(mod);
}
void rsnd_mod_init(struct rsnd_mod *mod,
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index 3f34461da1e0..92fd55044ee6 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -9,6 +9,7 @@
* published by the Free Software Foundation.
*/
#include <linux/delay.h>
+#include <linux/of_dma.h>
#include "rsnd.h"
/*
@@ -52,28 +53,6 @@ static void rsnd_dmaen_complete(void *data)
rsnd_dai_pointer_update(io, io->byte_per_period);
}
-#define DMA_NAME_SIZE 16
-static int _rsnd_dmaen_of_name(char *dma_name, struct rsnd_mod *mod)
-{
- if (mod)
- return snprintf(dma_name, DMA_NAME_SIZE / 2, "%s%d",
- rsnd_mod_dma_name(mod), rsnd_mod_id(mod));
- else
- return snprintf(dma_name, DMA_NAME_SIZE / 2, "mem");
-
-}
-
-static void rsnd_dmaen_of_name(struct rsnd_mod *mod_from,
- struct rsnd_mod *mod_to,
- char *dma_name)
-{
- int index = 0;
-
- index = _rsnd_dmaen_of_name(dma_name + index, mod_from);
- *(dma_name + index++) = '_';
- index = _rsnd_dmaen_of_name(dma_name + index, mod_to);
-}
-
static void rsnd_dmaen_stop(struct rsnd_dma *dma)
{
struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
@@ -115,6 +94,40 @@ static void rsnd_dmaen_start(struct rsnd_dma *dma)
dma_async_issue_pending(dmaen->chan);
}
+struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node,
+ struct rsnd_mod *mod, char *name)
+{
+ struct dma_chan *chan;
+ struct device_node *np;
+ int i = 0;
+
+ for_each_child_of_node(of_node, np) {
+ if (i == rsnd_mod_id(mod))
+ break;
+ i++;
+ }
+
+ chan = of_dma_request_slave_channel(np, name);
+
+ of_node_put(np);
+ of_node_put(of_node);
+
+ return chan;
+}
+
+static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_mod *mod_from,
+ struct rsnd_mod *mod_to)
+{
+ if ((!mod_from && !mod_to) ||
+ (mod_from && mod_to))
+ return NULL;
+
+ if (mod_from)
+ return rsnd_mod_dma_req(mod_from);
+ else
+ return rsnd_mod_dma_req(mod_to);
+}
+
static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
struct rsnd_mod *mod_from, struct rsnd_mod *mod_to)
{
@@ -124,8 +137,6 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
int is_play = rsnd_io_is_play(io);
- char dma_name[DMA_NAME_SIZE];
- dma_cap_mask_t mask;
int ret;
if (dmaen->chan) {
@@ -135,10 +146,21 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
dev_dbg(dev, "Audio DMAC init\n");
- dma_cap_zero(mask);
- dma_cap_set(DMA_SLAVE, mask);
+ if (dev->of_node) {
+ dmaen->chan = rsnd_dmaen_request_channel(mod_from, mod_to);
+ } else {
+ dma_cap_mask_t mask;
+
+ dma_cap_zero(mask);
+ dma_cap_set(DMA_SLAVE, mask);
- rsnd_dmaen_of_name(mod_from, mod_to, dma_name);
+ dmaen->chan = dma_request_channel(mask, shdma_chan_filter,
+ (void *)id);
+ }
+ if (IS_ERR_OR_NULL(dmaen->chan)) {
+ dev_err(dev, "can't get dma channel\n");
+ goto rsnd_dma_channel_err;
+ }
cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
cfg.src_addr = dma->src_addr;
@@ -146,16 +168,8 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
- dev_dbg(dev, "dma : %s %pad -> %pad\n",
- dma_name, &cfg.src_addr, &cfg.dst_addr);
-
- dmaen->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
- (void *)id, dev,
- dma_name);
- if (!dmaen->chan) {
- dev_err(dev, "can't get dma channel\n");
- goto rsnd_dma_channel_err;
- }
+ dev_dbg(dev, "dma : %pad -> %pad\n",
+ &cfg.src_addr, &cfg.dst_addr);
ret = dmaengine_slave_config(dmaen->chan, &cfg);
if (ret < 0)
diff --git a/sound/soc/sh/rcar/dvc.c b/sound/soc/sh/rcar/dvc.c
index e0990180e1ea..aeeef1352eee 100644
--- a/sound/soc/sh/rcar/dvc.c
+++ b/sound/soc/sh/rcar/dvc.c
@@ -272,8 +272,17 @@ static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
return 0;
}
+static struct dma_chan *rsnd_dvc_dma_req(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+
+ return rsnd_dma_request_channel(rsnd_dvc_of_node(priv),
+ mod, "tx");
+}
+
static struct rsnd_mod_ops rsnd_dvc_ops = {
.name = DVC_NAME,
+ .dma_req = rsnd_dvc_dma_req,
.probe = rsnd_dvc_probe_gen2,
.remove = rsnd_dvc_remove_gen2,
.init = rsnd_dvc_init,
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 68bc3f46d70b..52c401c9eeef 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -207,6 +207,8 @@ void rsnd_dma_quit(struct rsnd_dma *dma);
int rsnd_dma_probe(struct platform_device *pdev,
const struct rsnd_of_data *of_data,
struct rsnd_priv *priv);
+struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node,
+ struct rsnd_mod *mod, char *name);
#define rsnd_dma_to_mod(_dma) container_of((_dma), struct rsnd_mod, dma)
@@ -222,7 +224,7 @@ enum rsnd_mod_type {
struct rsnd_mod_ops {
char *name;
- char* (*dma_name)(struct rsnd_mod *mod);
+ struct dma_chan* (*dma_req)(struct rsnd_mod *mod);
int (*probe)(struct rsnd_mod *mod,
struct rsnd_priv *priv);
int (*remove)(struct rsnd_mod *mod,
@@ -292,7 +294,7 @@ void rsnd_mod_init(struct rsnd_mod *mod,
enum rsnd_mod_type type,
int id);
char *rsnd_mod_name(struct rsnd_mod *mod);
-char *rsnd_mod_dma_name(struct rsnd_mod *mod);
+struct dma_chan *rsnd_mod_dma_req(struct rsnd_mod *mod);
/*
* R-Car sound DAI
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
index 5a601bed4154..6ce8985757c1 100644
--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -114,6 +114,17 @@ struct rsnd_src {
/*
* Gen1/Gen2 common functions
*/
+static struct dma_chan *rsnd_src_dma_req(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int is_play = rsnd_io_is_play(io);
+
+ return rsnd_dma_request_channel(rsnd_src_of_node(priv),
+ mod,
+ is_play ? "rx" : "tx");
+}
+
int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
int use_busif)
{
@@ -506,6 +517,7 @@ static int rsnd_src_stop_gen1(struct rsnd_mod *mod,
static struct rsnd_mod_ops rsnd_src_gen1_ops = {
.name = SRC_NAME,
+ .dma_req = rsnd_src_dma_req,
.probe = rsnd_src_probe_gen1,
.init = rsnd_src_init_gen1,
.quit = rsnd_src_quit,
@@ -780,6 +792,7 @@ static int rsnd_src_stop_gen2(struct rsnd_mod *mod,
static struct rsnd_mod_ops rsnd_src_gen2_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,
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 2133eb34ed06..fea4aa53918a 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -553,14 +553,25 @@ static int rsnd_ssi_dma_stop(struct rsnd_mod *mod,
return 0;
}
-static char *rsnd_ssi_dma_name(struct rsnd_mod *mod)
+static struct dma_chan *rsnd_ssi_dma_req(struct rsnd_mod *mod)
{
- return rsnd_ssi_use_busif(mod) ? "ssiu" : SSI_NAME;
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
+ int is_play = rsnd_io_is_play(io);
+ char *name;
+
+ if (rsnd_ssi_use_busif(mod))
+ name = is_play ? "rxu" : "txu";
+ else
+ name = is_play ? "rx" : "tx";
+
+ return rsnd_dma_request_channel(rsnd_ssi_of_node(priv),
+ mod, name);
}
static struct rsnd_mod_ops rsnd_ssi_dma_ops = {
.name = SSI_NAME,
- .dma_name = rsnd_ssi_dma_name,
+ .dma_req = rsnd_ssi_dma_req,
.probe = rsnd_ssi_dma_probe,
.remove = rsnd_ssi_dma_remove,
.init = rsnd_ssi_init,
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-21 18:55:51 +0000