+-- Basic Board ---------+ |+--------+ +------+| || CPU ch0| <--> |CodecA|| || ch1| <-+ +------+| |+--------+ | | +-------------|----------+ +-- expansion board -----+ | | +------+| | +->|CodecB|| | +------+| +------------------------+
In above HW connection case, we intuitively think we want to handle these as "2 Sound Cards".
card0,0: CPU-ch0 - CodecA card1,0: CPU-ch1 - CodecB
But, we needed to handle it as "1 big Sound Card", because of Component vs Card limitation.
card0,0: CPU-ch0 - CodecA card0,1: CPU-ch1 - CodecB
This patch enables multi Component to handle multi Cards. To support it, it needs
- Fill dai_args for each DAI on snd_soc_dai_driver - Parse DT for each Component (Simple Card/Audio Graph Card)
Ex) Simple Card
rcar_sound { ...
/* Component0 */ rcar_sound,dai@0 { ... };
/* Component1 */ rcar_sound,dai@1 { ... }; };
Ex) Audio Graph Card/Card2
rcar_sound { /* Component0 */ ports@0 { ... };
/* Component1 */ ports@1 { ... }; };
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/sh/rcar/core.c | 134 ++++++++++++++++++++++++++------------- sound/soc/sh/rcar/rsnd.h | 4 ++ 2 files changed, 95 insertions(+), 43 deletions(-)
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c index a87d7fa55f7b..9f3d97bc177a 100644 --- a/sound/soc/sh/rcar/core.c +++ b/sound/soc/sh/rcar/core.c @@ -1260,13 +1260,13 @@ int rsnd_node_count(struct rsnd_priv *priv, struct device_node *node, char *name return i; }
-static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv, - int *nr, int *is_graph) +static int 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; + struct device_node *ports, *node; + int nr = 0; + int i = 0;
*is_graph = 0;
@@ -1278,30 +1278,47 @@ static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv, /* * Simple-Card */ - dai_node = of_get_child_by_name(np, RSND_NODE_DAI); - if (dai_node) { - *nr = of_get_child_count(dai_node); - ret = dai_node; - goto of_node_compatible; + node = of_get_child_by_name(np, RSND_NODE_DAI); + if (!node) + goto audio_graph; + + of_node_put(node); + + for_each_child_of_node(np, node) { + if (!of_node_name_eq(node, RSND_NODE_DAI)) + continue; + + priv->component_dais[i] = of_get_child_count(node); + nr += priv->component_dais[i]; + i++; + if (i >= RSND_MAX_COMPONENT) { + dev_info(dev, "reach to max component\n"); + break; + } }
+ return nr; + +audio_graph: /* * Audio-Graph-Card */ - dai_node = of_graph_get_next_endpoint(np, NULL); - if (dai_node) { - *nr = of_graph_get_endpoint_count(np); - *is_graph = 1; - ret = np; - goto of_node_compatible; + for_each_child_of_node(np, ports) { + if (!of_node_name_eq(ports, "ports") && + !of_node_name_eq(ports, "port")) + continue; + priv->component_dais[i] = of_graph_get_endpoint_count(ports); + nr += priv->component_dais[i]; + i++; + if (i >= RSND_MAX_COMPONENT) { + dev_info(dev, "reach to max component\n"); + break; + } }
- return NULL; - -of_node_compatible: - of_node_put(dai_node); + *is_graph = 1;
- return ret; + return nr; }
@@ -1365,6 +1382,8 @@ static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd,
static void __rsnd_dai_probe(struct rsnd_priv *priv, struct device_node *dai_np, + struct device_node *node_np, + uint32_t node_arg, int dai_i) { struct rsnd_dai_stream *io_playback; @@ -1382,11 +1401,17 @@ static void __rsnd_dai_probe(struct rsnd_priv *priv,
snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
+ /* for multi Component */ + rdai->dai_args.np = node_np; + rdai->dai_args.args_count = 1; + rdai->dai_args.args[0] = node_arg; + rdai->priv = priv; drv->name = rdai->name; drv->ops = &rsnd_soc_dai_ops; drv->pcm_new = rsnd_pcm_new; drv->id = dai_i; + drv->dai_args = &rdai->dai_args;
io_playback->rdai = rdai; io_capture->rdai = rdai; @@ -1450,16 +1475,15 @@ static void __rsnd_dai_probe(struct rsnd_priv *priv,
static int rsnd_dai_probe(struct rsnd_priv *priv) { - struct device_node *dai_node; - struct device_node *dai_np; struct snd_soc_dai_driver *rdrv; struct device *dev = rsnd_priv_to_dev(priv); + struct device_node *np = dev->of_node; struct rsnd_dai *rdai; int nr = 0; int is_graph; int dai_i;
- dai_node = rsnd_dai_of_node(priv, &nr, &is_graph); + nr = rsnd_dai_of_node(priv, &is_graph); if (!nr) return -EINVAL;
@@ -1477,26 +1501,42 @@ static int rsnd_dai_probe(struct rsnd_priv *priv) */ dai_i = 0; if (is_graph) { - for_each_endpoint_of_node(dai_node, dai_np) { - __rsnd_dai_probe(priv, dai_np, dai_i); - if (rsnd_is_gen3(priv) || rsnd_is_gen4(priv)) { - rdai = rsnd_rdai_get(priv, dai_i); - - rsnd_parse_connect_graph(priv, &rdai->playback, dai_np); - rsnd_parse_connect_graph(priv, &rdai->capture, dai_np); + struct device_node *ports; + struct device_node *dai_np; + + for_each_child_of_node(np, ports) { + if (!of_node_name_eq(ports, "ports") && + !of_node_name_eq(ports, "port")) + continue; + for_each_endpoint_of_node(ports, dai_np) { + __rsnd_dai_probe(priv, dai_np, dai_np, 0, dai_i); + if (rsnd_is_gen3(priv) || rsnd_is_gen4(priv)) { + rdai = rsnd_rdai_get(priv, dai_i); + + rsnd_parse_connect_graph(priv, &rdai->playback, dai_np); + rsnd_parse_connect_graph(priv, &rdai->capture, dai_np); + } + dai_i++; } - dai_i++; } } else { - for_each_child_of_node(dai_node, dai_np) { - __rsnd_dai_probe(priv, dai_np, dai_i); - if (rsnd_is_gen3(priv) || rsnd_is_gen4(priv)) { - rdai = rsnd_rdai_get(priv, dai_i); + struct device_node *node; + struct device_node *dai_np; + + for_each_child_of_node(np, node) { + if (!of_node_name_eq(node, RSND_NODE_DAI)) + continue;
- rsnd_parse_connect_simple(priv, &rdai->playback, dai_np); - rsnd_parse_connect_simple(priv, &rdai->capture, dai_np); + for_each_child_of_node(node, dai_np) { + __rsnd_dai_probe(priv, dai_np, np, dai_i, dai_i); + if (rsnd_is_gen3(priv) || rsnd_is_gen4(priv)) { + rdai = rsnd_rdai_get(priv, dai_i); + + rsnd_parse_connect_simple(priv, &rdai->playback, dai_np); + rsnd_parse_connect_simple(priv, &rdai->capture, dai_np); + } + dai_i++; } - dai_i++; } }
@@ -1926,6 +1966,7 @@ static int rsnd_probe(struct platform_device *pdev) rsnd_dai_probe, }; int ret, i; + int ci;
/* * init priv data @@ -1962,11 +2003,18 @@ static int rsnd_probe(struct platform_device *pdev) /* * asoc register */ - ret = devm_snd_soc_register_component(dev, &rsnd_soc_component, - priv->daidrv, rsnd_rdai_nr(priv)); - if (ret < 0) { - dev_err(dev, "cannot snd dai register\n"); - goto exit_snd_probe; + ci = 0; + for (i = 0; priv->component_dais[i] > 0; i++) { + int nr = priv->component_dais[i]; + + ret = devm_snd_soc_register_component(dev, &rsnd_soc_component, + priv->daidrv + ci, nr); + if (ret < 0) { + dev_err(dev, "cannot snd component register\n"); + goto exit_snd_probe; + } + + ci += nr; }
pm_runtime_enable(dev); diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h index 239705d52517..43c0d675cc34 100644 --- a/sound/soc/sh/rcar/rsnd.h +++ b/sound/soc/sh/rcar/rsnd.h @@ -545,6 +545,7 @@ struct rsnd_dai { struct rsnd_dai_stream capture; struct rsnd_priv *priv; struct snd_pcm_hw_constraint_list constraint; + struct of_phandle_args dai_args;
int max_channels; /* 2ch - 16ch */ int ssi_lane; /* 1lane - 4lane */ @@ -702,6 +703,9 @@ struct rsnd_priv { struct snd_soc_dai_driver *daidrv; struct rsnd_dai *rdai; int rdai_nr; + +#define RSND_MAX_COMPONENT 3 + int component_dais[RSND_MAX_COMPONENT]; };
#define rsnd_priv_to_pdev(priv) ((priv)->pdev)