summaryrefslogtreecommitdiff
path: root/sound/soc/sh/rcar/ssi.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/sh/rcar/ssi.c')
-rw-r--r--sound/soc/sh/rcar/ssi.c73
1 files changed, 41 insertions, 32 deletions
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 9e7b627c08e2..7bb9c087f3dc 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -80,13 +80,13 @@ struct rsnd_ssi {
#define rsnd_mod_to_ssi(_mod) container_of((_mod), struct rsnd_ssi, mod)
#define rsnd_dma_to_ssi(dma) rsnd_mod_to_ssi(rsnd_dma_to_mod(dma))
#define rsnd_ssi_pio_available(ssi) ((ssi)->info->irq > 0)
-#define rsnd_ssi_dma_available(ssi) \
- rsnd_dma_available(rsnd_mod_to_dma(&(ssi)->mod))
#define rsnd_ssi_clk_from_parent(ssi) ((ssi)->parent)
#define rsnd_ssi_mode_flags(p) ((p)->info->flags)
#define rsnd_ssi_dai_id(ssi) ((ssi)->info->dai_id)
+#define rsnd_ssi_of_node(priv) \
+ of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,ssi")
-static int rsnd_ssi_use_busif(struct rsnd_mod *mod)
+int rsnd_ssi_use_busif(struct rsnd_mod *mod)
{
struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
@@ -416,11 +416,14 @@ static irqreturn_t rsnd_ssi_interrupt(int irq, void *data)
/*
* restart SSI
*/
- rsnd_ssi_stop(mod, priv);
- rsnd_ssi_start(mod, priv);
-
dev_dbg(dev, "%s[%d] restart\n",
rsnd_mod_name(mod), rsnd_mod_id(mod));
+
+ rsnd_ssi_stop(mod, priv);
+ if (ssi->err < 1024)
+ rsnd_ssi_start(mod, priv);
+ else
+ dev_warn(dev, "no more SSI restart\n");
}
rsnd_ssi_record_error(ssi, status);
@@ -442,12 +445,6 @@ static int rsnd_ssi_pio_probe(struct rsnd_mod *mod,
rsnd_ssi_interrupt,
IRQF_SHARED,
dev_name(dev), ssi);
- if (ret)
- dev_err(dev, "%s[%d] (PIO) request interrupt failed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
- else
- dev_dbg(dev, "%s[%d] (PIO) is probed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
return ret;
}
@@ -474,23 +471,11 @@ static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
IRQF_SHARED,
dev_name(dev), ssi);
if (ret)
- goto rsnd_ssi_dma_probe_fail;
+ return ret;
ret = rsnd_dma_init(
priv, rsnd_mod_to_dma(mod),
- rsnd_info_is_playback(priv, ssi),
dma_id);
- if (ret)
- goto rsnd_ssi_dma_probe_fail;
-
- dev_dbg(dev, "%s[%d] (DMA) is probed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
-
- return ret;
-
-rsnd_ssi_dma_probe_fail:
- dev_err(dev, "%s[%d] (DMA) is failed\n",
- rsnd_mod_name(mod), rsnd_mod_id(mod));
return ret;
}
@@ -502,7 +487,7 @@ static int rsnd_ssi_dma_remove(struct rsnd_mod *mod,
struct device *dev = rsnd_priv_to_dev(priv);
int irq = ssi->info->irq;
- rsnd_dma_quit(priv, rsnd_mod_to_dma(mod));
+ rsnd_dma_quit(rsnd_mod_to_dma(mod));
/* PIO will request IRQ again */
devm_free_irq(dev, irq, ssi);
@@ -554,14 +539,25 @@ 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,
@@ -636,7 +632,7 @@ static void rsnd_of_parse_ssi(struct platform_device *pdev,
if (!of_data)
return;
- node = of_get_child_by_name(dev->of_node, "rcar_sound,ssi");
+ node = rsnd_ssi_of_node(priv);
if (!node)
return;
@@ -697,7 +693,7 @@ int rsnd_ssi_probe(struct platform_device *pdev,
struct clk *clk;
struct rsnd_ssi *ssi;
char name[RSND_SSI_NAME_SIZE];
- int i, nr;
+ int i, nr, ret;
rsnd_of_parse_ssi(pdev, of_data, priv);
@@ -732,10 +728,23 @@ int rsnd_ssi_probe(struct platform_device *pdev,
else if (rsnd_ssi_pio_available(ssi))
ops = &rsnd_ssi_pio_ops;
- rsnd_mod_init(&ssi->mod, ops, clk, RSND_MOD_SSI, i);
+ ret = rsnd_mod_init(&ssi->mod, ops, clk, RSND_MOD_SSI, i);
+ if (ret)
+ return ret;
rsnd_ssi_parent_clk_setup(priv, ssi);
}
return 0;
}
+
+void rsnd_ssi_remove(struct platform_device *pdev,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi;
+ int i;
+
+ for_each_rsnd_ssi(ssi, priv, i) {
+ rsnd_mod_quit(&ssi->mod);
+ }
+}