From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
In general Renesas SoC's SSI/SRC are all enabled, but some SoC is not.
H2 E2
SRC0 <=
SRC1 SRC1
SRC2 SRC2
... ...
Renesas Sound driver is assuming that *all* modules are
enabled, and thus it is using *data array* to access each modules.
Because of it, we have been using "status = disabled" at DT,
and using *full size* array but avoiding disabled module.
ex)
rcar_sound,src {
src-0 {
=> status = "disabled";
};
src1: src-1 {
...
};
...
But R-Car D3 have many disabled modules (It has SSI3/SSI4, SRC5/SRC6),
and Renesas SoC maintainer don't want above style on DT.
ex)
rcar_sound,src {
=> src0: src-0 { status = "disabled"; };
=> src1: src-1 { status = "disabled"; };
=> src2: src-2 { status = "disabled"; };
=> src3: src-3 { status = "disabled"; };
=> src4: src-4 { status = "disabled"; };
src5: src-5 {
...
};
src6: src-6 {
...
};
};
rcar_sound,ssi {
=> ssi0: ssi-0 { status = "disabled"; };
=> ssi1: ssi-1 { status = "disabled"; };
=> ssi2: ssi-2 { status = "disabled"; };
ssi3: ssi-3 {
...
};
ssi4: ssi-4 {
...
};
};
To adjust it, it needs to care about related for_each_child_of_node()
loop on rsnd driver, and it is used from...
> grep -l for_each_child_of_node sound/soc/sh/rcar/*
sound/soc/sh/rcar/core.c
sound/soc/sh/rcar/ctu.c
sound/soc/sh/rcar/dma.c
sound/soc/sh/rcar/dvc.c
sound/soc/sh/rcar/mix.c
sound/soc/sh/rcar/src.c
sound/soc/sh/rcar/ssi.c
sound/soc/sh/rcar/ssiu.c
This patch adjust to this situation.
By this patch, we can avoid disabled modules on DT
rcar_sound,src {
src5: src-5 {
...
};
src6: src-6 {
...
};
};
rcar_sound,ssi {
ssi3: ssi-3 {
...
};
ssi4: ssi-4 {
...
};
};
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
sound/soc/sh/rcar/core.c | 52 ++++++++++++++++++++++++++++++++++++++++
sound/soc/sh/rcar/dma.c | 2 ++
sound/soc/sh/rcar/rsnd.h | 2 ++
sound/soc/sh/rcar/src.c | 4 +++-
sound/soc/sh/rcar/ssi.c | 6 ++++-
sound/soc/sh/rcar/ssiu.c | 4 +++-
6 files changed, 67 insertions(+), 3 deletions(-)
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index b50812c188ed..a4ed9d8f022a 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -1142,6 +1142,8 @@ void rsnd_parse_connect_common(struct rsnd_dai *rdai, char *name,
for_each_child_of_node(node, np) {
struct rsnd_mod *mod;
+ i = rsnd_node_fixed_index(np, name, i);
+
mod = mod_get(priv, i);
if (np == playback)
@@ -1154,6 +1156,56 @@ void rsnd_parse_connect_common(struct rsnd_dai *rdai, char *name,
of_node_put(node);
}
+int rsnd_node_fixed_index(struct device_node *node, char *name, int idx)
+{
+ char node_name[16];
+
+ /*
+ * rsnd is assuming each device nodes are sequential numbering,
+ * but some of them are not.
+ * This function adjusts index for it.
+ *
+ * ex)
+ * Normal case, special case
+ * ssi-0
+ * ssi-1
+ * ssi-2
+ * ssi-3 ssi-3
+ * ssi-4 ssi-4
+ * ...
+ *
+ * assume Max 64 node
+ */
+ for (; idx < 64; idx++) {
+ snprintf(node_name, sizeof(node_name), "%s-%d", name, idx);
+
+ if (strncmp(node_name, of_node_full_name(node), sizeof(node_name)) == 0)
+ return idx;
+ }
+
+ return -EINVAL;
+}
+
+int rsnd_node_count(struct rsnd_priv *priv, struct device_node *node, char *name)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *np;
+ int i;
+
+ i = 0;
+ for_each_child_of_node(node, np) {
+ i = rsnd_node_fixed_index(np, name, i);
+ if (i < 0) {
+ dev_err(dev, "strange node numbering (%s)",
+ of_node_full_name(node));
+ return 0;
+ }
+ i++;
+ }
+
+ return i;
+}
+
static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv,
int *is_graph)
{
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index d581f1424185..82d16e037d9a 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -245,6 +245,8 @@ struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node, char *nam
int i = 0;
for_each_child_of_node(of_node, np) {
+ i = rsnd_node_fixed_index(np, name, i);
+
if (i == rsnd_mod_id_raw(mod) && (!chan))
chan = of_dma_request_slave_channel(np, x);
i++;
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 256a11b67eed..b2fbe3bbaabd 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -465,6 +465,8 @@ void rsnd_parse_connect_common(struct rsnd_dai *rdai, char *name,
struct device_node *node,
struct device_node *playback,
struct device_node *capture);
+int rsnd_node_count(struct rsnd_priv *priv, struct device_node *node, char *name);
+int rsnd_node_fixed_index(struct device_node *node, char *name, int idx);
int rsnd_channel_normalization(int chan);
#define rsnd_runtime_channel_original(io) \
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
index 9ccc959c9150..42a100c6303d 100644
--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -656,7 +656,7 @@ int rsnd_src_probe(struct rsnd_priv *priv)
if (!node)
return 0; /* not used is not error */
- nr = of_get_child_count(node);
+ nr = rsnd_node_count(priv, node, SRC_NAME);
if (!nr) {
ret = -EINVAL;
goto rsnd_src_probe_done;
@@ -676,6 +676,8 @@ int rsnd_src_probe(struct rsnd_priv *priv)
if (!of_device_is_available(np))
goto skip;
+ i = rsnd_node_fixed_index(np, SRC_NAME, i);
+
src = rsnd_src_get(priv, i);
snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d",
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 4c91091518e3..27f34ca6059d 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -1117,6 +1117,8 @@ void rsnd_parse_connect_ssi(struct rsnd_dai *rdai,
for_each_child_of_node(node, np) {
struct rsnd_mod *mod;
+ i = rsnd_node_fixed_index(np, SSI_NAME, i);
+
mod = rsnd_ssi_mod_get(priv, i);
if (np == playback)
@@ -1160,7 +1162,7 @@ int rsnd_ssi_probe(struct rsnd_priv *priv)
if (!node)
return -EINVAL;
- nr = of_get_child_count(node);
+ nr = rsnd_node_count(priv, node, SSI_NAME);
if (!nr) {
ret = -EINVAL;
goto rsnd_ssi_probe_done;
@@ -1180,6 +1182,8 @@ int rsnd_ssi_probe(struct rsnd_priv *priv)
if (!of_device_is_available(np))
goto skip;
+ i = rsnd_node_fixed_index(np, SSI_NAME, i);
+
ssi = rsnd_ssi_get(priv, i);
snprintf(name, RSND_SSI_NAME_SIZE, "%s.%d",
diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c
index 819739e18465..5682c74bb7ff 100644
--- a/sound/soc/sh/rcar/ssiu.c
+++ b/sound/soc/sh/rcar/ssiu.c
@@ -472,6 +472,8 @@ void rsnd_parse_connect_ssiu(struct rsnd_dai *rdai,
for_each_child_of_node(node, np) {
struct rsnd_mod *mod;
+ i = rsnd_node_fixed_index(np, SSIU_NAME, i);
+
mod = rsnd_ssiu_mod_get(priv, i);
if (np == playback)
@@ -509,7 +511,7 @@ int rsnd_ssiu_probe(struct rsnd_priv *priv)
*/
node = rsnd_ssiu_of_node(priv);
if (node)
- nr = of_get_child_count(node);
+ nr = rsnd_node_count(priv, node, SSIU_NAME);
else
nr = priv->ssi_nr;
--
2.25.1
