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Subject[PATCH 03/10] ASoC: audio-graph: Support Codec with multiple endpoints
Date
If a Codec port has multiple endpoints, only first endpoint gets parsed
and remaining are ignored. This can be fixed by removing 'dup_codec' flag
passed to graph_dai_link_of_dpcm() and thus it loops over all endpoints
of Codec. Similarly graph_count_dpcm() is updated as well.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
---
sound/soc/generic/audio-graph-card.c | 28 +++++++++-------------------
1 file changed, 9 insertions(+), 19 deletions(-)

diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 1e20562..b1903f9 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -201,8 +201,7 @@ static void graph_parse_mclk_fs(struct device_node *top,
static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
struct device_node *cpu_ep,
struct device_node *codec_ep,
- struct link_info *li,
- int dup_codec)
+ struct link_info *li)
{
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
@@ -217,10 +216,6 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
struct snd_soc_dai_link_component *codecs = dai_link->codecs;
int ret;

- /* Do it all CPU endpoint, and 1st Codec endpoint */
- if (!li->cpu && dup_codec)
- return 0;
-
port = of_get_parent(ep);
ports = of_get_parent(port);
node = of_graph_get_port_parent(ep);
@@ -415,7 +410,7 @@ static int graph_for_each_link(struct asoc_simple_priv *priv,
int (*func_dpcm)(struct asoc_simple_priv *priv,
struct device_node *cpu_ep,
struct device_node *codec_ep,
- struct link_info *li, int dup_codec))
+ struct link_info *li))
{
struct of_phandle_iterator it;
struct device *dev = simple_priv_to_dev(priv);
@@ -424,7 +419,6 @@ static int graph_for_each_link(struct asoc_simple_priv *priv,
struct device_node *cpu_ep;
struct device_node *codec_ep;
struct device_node *codec_port;
- struct device_node *codec_port_old = NULL;
struct asoc_simple_data adata;
uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
int rc, ret;
@@ -457,8 +451,7 @@ static int graph_for_each_link(struct asoc_simple_priv *priv,
if (dpcm_selectable &&
((of_get_child_count(codec_port) > 1) ||
adata.convert_rate || adata.convert_channels))
- ret = func_dpcm(priv, cpu_ep, codec_ep, li,
- (codec_port_old == codec_port));
+ ret = func_dpcm(priv, cpu_ep, codec_ep, li);
/* else normal sound */
else
ret = func_noml(priv, cpu_ep, codec_ep, li);
@@ -468,8 +461,6 @@ static int graph_for_each_link(struct asoc_simple_priv *priv,

if (ret < 0)
return ret;
-
- codec_port_old = codec_port;
}
}

@@ -532,19 +523,18 @@ static int graph_count_noml(struct asoc_simple_priv *priv,
static int graph_count_dpcm(struct asoc_simple_priv *priv,
struct device_node *cpu_ep,
struct device_node *codec_ep,
- struct link_info *li,
- int dup_codec)
+ struct link_info *li)
{
struct device *dev = simple_priv_to_dev(priv);

+ /* CPU */
li->link++; /* 1xCPU-dummy */
li->dais++; /* 1xCPU */

- if (!dup_codec) {
- li->link++; /* 1xdummy-Codec */
- li->conf++; /* 1xdummy-Codec */
- li->dais++; /* 1xCodec */
- }
+ /* Codec */
+ li->link++; /* 1xdummy-Codec */
+ li->conf++; /* 1xdummy-Codec */
+ li->dais++; /* 1xCodec */

dev_dbg(dev, "Count As DPCM\n");

--
2.7.4
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