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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2017-05-18 01:27:48 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-05-19 18:36:25 +0100 |
| commit | 11d0f8ed6dc3e553b20329bc85f2a1aefb5f180f (patch) | |
| tree | 1777c1a84a99b4ae681cf69f6cc8744e4e9e78e7 /sound/soc/sh | |
| parent | c73df77d72de28ad72973d3c3103a5361e1440fb (diff) | |
| download | linux-11d0f8ed6dc3e553b20329bc85f2a1aefb5f180f.tar.gz linux-11d0f8ed6dc3e553b20329bc85f2a1aefb5f180f.tar.bz2 linux-11d0f8ed6dc3e553b20329bc85f2a1aefb5f180f.zip | |
ASoC: rsnd: add support graph base DT phase 1
To enable OF-graph base DT on rsnd driver, and to keep compatible
previous normal sound card style, it need to support both
"rcar_sound,dai" and "ports" (or "port") on DT.
This patch modify rsnd_dai_of_node() to parse
"rcar_sound,dai" and "ports" (or "port") as phase 1. It can detect
graph base style, but do nothing at this point.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sh')
| -rw-r--r-- | sound/soc/sh/rcar/core.c | 39 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/rsnd.h | 2 |
2 files changed, 39 insertions, 2 deletions
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index 3c47af1990cb..72a3139b70c3 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -774,6 +774,42 @@ void rsnd_parse_connect_common(struct rsnd_dai *rdai, of_node_put(node); } +static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv, + int *is_graph) +{ + struct device *dev = rsnd_priv_to_dev(priv); + struct device_node *np = dev->of_node; + struct device_node *dai_node; + struct device_node *ret; + + *is_graph = 0; + + /* + * parse both previous dai (= rcar_sound,dai), and + * graph dai (= ports/port) + */ + dai_node = of_get_child_by_name(np, RSND_NODE_DAI); + if (dai_node) { + ret = dai_node; + goto of_node_compatible; + } + + ret = np; + + dai_node = of_graph_get_next_endpoint(np, NULL); + if (dai_node) + goto of_node_graph; + + return NULL; + +of_node_graph: + *is_graph = 1; +of_node_compatible: + of_node_put(dai_node); + + return ret; +} + static int rsnd_dai_probe(struct rsnd_priv *priv) { struct device_node *dai_node; @@ -785,9 +821,10 @@ static int rsnd_dai_probe(struct rsnd_priv *priv) struct rsnd_dai *rdai; struct device *dev = rsnd_priv_to_dev(priv); int nr, dai_i, io_i; + int is_graph; int ret; - dai_node = rsnd_dai_of_node(priv); + dai_node = rsnd_dai_of_node(priv, &is_graph); nr = of_get_child_count(dai_node); if (!nr) { ret = -EINVAL; diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index dbf4163427e8..4d8e0584b644 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -18,6 +18,7 @@ #include <linux/list.h> #include <linux/module.h> #include <linux/of_device.h> +#include <linux/of_graph.h> #include <linux/of_irq.h> #include <linux/sh_dma.h> #include <linux/workqueue.h> @@ -475,7 +476,6 @@ int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional); int rsnd_dai_connect(struct rsnd_mod *mod, struct rsnd_dai_stream *io, enum rsnd_mod_type type); -#define rsnd_dai_of_node(priv) rsnd_parse_of_node(priv, RSND_NODE_DAI) /* * R-Car Gen1/Gen2 |