diff options
Diffstat (limited to 'sound/soc/generic')
-rw-r--r-- | sound/soc/generic/audio-graph-card.c | 107 | ||||
-rw-r--r-- | sound/soc/generic/audio-graph-card2-custom-sample.dtsi | 165 | ||||
-rw-r--r-- | sound/soc/generic/audio-graph-card2.c | 107 | ||||
-rw-r--r-- | sound/soc/generic/simple-card-utils.c | 118 | ||||
-rw-r--r-- | sound/soc/generic/simple-card.c | 4 |
5 files changed, 229 insertions, 272 deletions
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c index 4e85536a1b26..c6e0f9132193 100644 --- a/sound/soc/generic/audio-graph-card.c +++ b/sound/soc/generic/audio-graph-card.c @@ -55,60 +55,6 @@ static const struct snd_soc_ops graph_ops = { .hw_params = asoc_simple_hw_params, }; -static int graph_get_dai_id(struct device_node *ep) -{ - struct device_node *node; - struct device_node *endpoint; - struct of_endpoint info; - int i, id; - const u32 *reg; - int ret; - - /* use driver specified DAI ID if exist */ - ret = snd_soc_get_dai_id(ep); - if (ret != -ENOTSUPP) - return ret; - - /* use endpoint/port reg if exist */ - ret = of_graph_parse_endpoint(ep, &info); - if (ret == 0) { - /* - * Because it will count port/endpoint if it doesn't have "reg". - * But, we can't judge whether it has "no reg", or "reg = <0>" - * only of_graph_parse_endpoint(). - * We need to check "reg" property - */ - if (of_property_present(ep, "reg")) - return info.id; - - node = of_get_parent(ep); - reg = of_get_property(node, "reg", NULL); - of_node_put(node); - if (reg) - return info.port; - } - node = of_graph_get_port_parent(ep); - - /* - * Non HDMI sound case, counting port/endpoint on its DT - * is enough. Let's count it. - */ - i = 0; - id = -1; - for_each_endpoint_of_node(node, endpoint) { - if (endpoint == ep) - id = i; - i++; - } - - of_node_put(node); - - if (id < 0) - return -ENODEV; - - return id; -} - static bool soc_component_is_pcm(struct snd_soc_dai_link_component *dlc) { struct snd_soc_dai *dai = snd_soc_find_dai_with_mutex(dlc); @@ -120,57 +66,6 @@ static bool soc_component_is_pcm(struct snd_soc_dai_link_component *dlc) return false; } -static int asoc_simple_parse_dai(struct device_node *ep, - struct snd_soc_dai_link_component *dlc, - int *is_single_link) -{ - struct device_node *node; - struct of_phandle_args args; - int ret; - - if (!ep) - return 0; - - node = of_graph_get_port_parent(ep); - - /* Get dai->name */ - args.np = node; - args.args[0] = graph_get_dai_id(ep); - args.args_count = (of_graph_get_endpoint_count(node) > 1); - - /* - * FIXME - * - * Here, dlc->dai_name is pointer to CPU/Codec DAI name. - * If user unbinded CPU or Codec driver, but not for Sound Card, - * dlc->dai_name is keeping unbinded CPU or Codec - * driver's pointer. - * - * If user re-bind CPU or Codec driver again, ALSA SoC will try - * to rebind Card via snd_soc_try_rebind_card(), but because of - * above reason, it might can't bind Sound Card. - * Because Sound Card is pointing to released dai_name pointer. - * - * To avoid this rebind Card issue, - * 1) It needs to alloc memory to keep dai_name eventhough - * CPU or Codec driver was unbinded, or - * 2) user need to rebind Sound Card everytime - * if he unbinded CPU or Codec. - */ - ret = snd_soc_get_dai_name(&args, &dlc->dai_name); - if (ret < 0) { - of_node_put(node); - return ret; - } - - dlc->of_node = node; - - if (is_single_link) - *is_single_link = of_graph_get_endpoint_count(node) == 1; - - return 0; -} - static void graph_parse_convert(struct device *dev, struct device_node *ep, struct asoc_simple_data *adata) @@ -231,7 +126,7 @@ static int graph_parse_node(struct asoc_simple_priv *priv, graph_parse_mclk_fs(top, ep, dai_props); - ret = asoc_simple_parse_dai(ep, dlc, cpu); + ret = asoc_graph_parse_dai(ep, dlc, cpu); if (ret < 0) return ret; diff --git a/sound/soc/generic/audio-graph-card2-custom-sample.dtsi b/sound/soc/generic/audio-graph-card2-custom-sample.dtsi index 994db61a26b3..2ac0de3c21da 100644 --- a/sound/soc/generic/audio-graph-card2-custom-sample.dtsi +++ b/sound/soc/generic/audio-graph-card2-custom-sample.dtsi @@ -42,6 +42,15 @@ * [Normal] * cpu0 <-@-----------------> codec0 * + * [Semi-Multi] + * + * CPU:Codec = 1:N + * + * +-+ + * cpu7 <-@------->| |-> codec12 + * | |-> codec13 + * +-+ + * * [Multi-CPU/Codec] * +-+ +-+ * cpu1 <--| |<-@--------->| |-> codec1 @@ -128,6 +137,9 @@ */ &cpu0 + /* [Semi-Multi] */ + &sm0 + /* * [Multi-CPU/Codec]: cpu side only * cpu1/cpu2/codec1/codec2 @@ -160,76 +172,127 @@ >; multi { + #address-cells = <1>; + #size-cells = <0>; + ports@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; /* [Multi-CPU] */ - mcpu0: port@0 { mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; }; - port@1 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; }; - port@2 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; }; + mcpu0: port@0 { reg = <0>; mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; }; + port@1 { reg = <1>; mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; }; + port@2 { reg = <2>; mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; }; }; /* [Multi-Codec] */ ports@1 { - port@0 { mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; }; - port@1 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; }; - port@2 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; }; + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + port@0 { reg = <0>; mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; }; + port@1 { reg = <1>; mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; }; + port@2 { reg = <2>; mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; }; }; /* [DPCM-Multi]::BE */ ports@2 { - port@0 { mbe_ep: endpoint { remote-endpoint = <&be10_ep>; }; }; - port@1 { mbe1_ep: endpoint { remote-endpoint = <&codec4_ep>; }; }; - port@2 { mbe2_ep: endpoint { remote-endpoint = <&codec5_ep>; }; }; + reg = <2>; + #address-cells = <1>; + #size-cells = <0>; + port@0 { reg = <0>; mbe_ep: endpoint { remote-endpoint = <&be10_ep>; }; }; + port@1 { reg = <1>; mbe1_ep: endpoint { remote-endpoint = <&codec4_ep>; }; }; + port@2 { reg = <2>; mbe2_ep: endpoint { remote-endpoint = <&codec5_ep>; }; }; }; /* [Codec2Codec-Multi]::CPU */ ports@3 { - port@0 { mc2c0_ep: endpoint { remote-endpoint = <&c2cmf_ep>; }; }; - port@1 { mc2c00_ep: endpoint { remote-endpoint = <&codec8_ep>; }; }; - port@2 { mc2c01_ep: endpoint { remote-endpoint = <&codec9_ep>; }; }; + reg = <3>; + #address-cells = <1>; + #size-cells = <0>; + port@0 { reg = <0>; mc2c0_ep: endpoint { remote-endpoint = <&c2cmf_ep>; }; }; + port@1 { reg = <1>; mc2c00_ep: endpoint { remote-endpoint = <&codec8_ep>; }; }; + port@2 { reg = <2>; mc2c01_ep: endpoint { remote-endpoint = <&codec9_ep>; }; }; }; /* [Codec2Codec-Multi]::Codec */ ports@4 { - port@0 { mc2c1_ep: endpoint { remote-endpoint = <&c2cmb_ep>; }; }; - port@1 { mc2c10_ep: endpoint { remote-endpoint = <&codec10_ep>; }; }; - port@2 { mc2c11_ep: endpoint { remote-endpoint = <&codec11_ep>; }; }; + reg = <4>; + #address-cells = <1>; + #size-cells = <0>; + port@0 { reg = <0>; mc2c1_ep: endpoint { remote-endpoint = <&c2cmb_ep>; }; }; + port@1 { reg = <1>; mc2c10_ep: endpoint { remote-endpoint = <&codec10_ep>; }; }; + port@2 { reg = <2>; mc2c11_ep: endpoint { remote-endpoint = <&codec11_ep>; }; }; + }; + + /* [Semi-Multi] */ + ports@5 { + reg = <5>; + #address-cells = <1>; + #size-cells = <0>; + port@0 { reg = <0>; smcodec0_ep: endpoint { remote-endpoint = <&cpu7_ep>; }; }; + port@1 { reg = <1>; smcodec1_ep: endpoint { remote-endpoint = <&codec12_ep>; }; }; + port@2 { reg = <2>; smcodec2_ep: endpoint { remote-endpoint = <&codec13_ep>; }; }; }; }; dpcm { + #address-cells = <1>; + #size-cells = <0>; + ports@0 { + reg = <0>; + + #address-cells = <1>; + #size-cells = <0>; /* [DPCM]::FE */ - fe00: port@0 { fe00_ep: endpoint { remote-endpoint = <&cpu3_ep>; }; }; - fe01: port@1 { fe01_ep: endpoint { remote-endpoint = <&cpu4_ep>; }; }; + fe00: port@0 { reg = <0>; fe00_ep: endpoint { remote-endpoint = <&cpu3_ep>; }; }; + fe01: port@1 { reg = <1>; fe01_ep: endpoint { remote-endpoint = <&cpu4_ep>; }; }; /* [DPCM-Multi]::FE */ - fe10: port@2 { fe10_ep: endpoint { remote-endpoint = <&cpu5_ep>; }; }; - fe11: port@3 { fe11_ep: endpoint { remote-endpoint = <&cpu6_ep>; }; }; + fe10: port@2 { reg = <2>; fe10_ep: endpoint { remote-endpoint = <&cpu5_ep>; }; }; + fe11: port@3 { reg = <3>; fe11_ep: endpoint { remote-endpoint = <&cpu6_ep>; }; }; }; ports@1 { + reg = <1>; + + #address-cells = <1>; + #size-cells = <0>; /* [DPCM]::BE */ - be0: port@0 { be00_ep: endpoint { remote-endpoint = <&codec3_ep>; }; }; + be0: port@0 { reg = <0>; be00_ep: endpoint { remote-endpoint = <&codec3_ep>; }; }; /* [DPCM-Multi]::BE */ - be1: port@1 { be10_ep: endpoint { remote-endpoint = <&mbe_ep>; }; }; + be1: port@1 { reg = <1>; be10_ep: endpoint { remote-endpoint = <&mbe_ep>; }; }; }; }; codec2codec { + #address-cells = <1>; + #size-cells = <0>; /* [Codec2Codec] */ ports@0 { + reg = <0>; + + #address-cells = <1>; + #size-cells = <0>; + /* use default settings */ - c2c: port@0 { c2cf_ep: endpoint { remote-endpoint = <&codec6_ep>; }; }; - port@1 { c2cb_ep: endpoint { remote-endpoint = <&codec7_ep>; }; }; + c2c: port@0 { reg = <0>; c2cf_ep: endpoint { remote-endpoint = <&codec6_ep>; }; }; + port@1 { reg = <1>; c2cb_ep: endpoint { remote-endpoint = <&codec7_ep>; }; }; }; /* [Codec2Codec-Multi] */ ports@1 { + reg = <1>; + + #address-cells = <1>; + #size-cells = <0>; + /* use original settings */ rate = <48000>; - c2c_m: port@0 { c2cmf_ep: endpoint { remote-endpoint = <&mc2c0_ep>; }; }; - port@1 { c2cmb_ep: endpoint { remote-endpoint = <&mc2c1_ep>; }; }; + c2c_m: port@0 { reg = <0>; c2cmf_ep: endpoint { remote-endpoint = <&mc2c0_ep>; }; }; + port@1 { reg = <1>; c2cmb_ep: endpoint { remote-endpoint = <&mc2c1_ep>; }; }; }; }; }; @@ -245,22 +308,28 @@ */ compatible = "test-cpu"; ports { + #address-cells = <1>; + #size-cells = <0>; + bitclock-master; frame-master; /* [Normal] */ - cpu0: port@0 { cpu0_ep: endpoint { remote-endpoint = <&codec0_ep>; }; }; + cpu0: port@0 { reg = <0>; cpu0_ep: endpoint { remote-endpoint = <&codec0_ep>; }; }; /* [Multi-CPU] */ - port@1 { cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; }; - port@2 { cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; }; + port@1 { reg = <1>; cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; }; + port@2 { reg = <2>; cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; }; /* [DPCM]::FE */ - port@3 { cpu3_ep: endpoint { remote-endpoint = <&fe00_ep>; }; }; - port@4 { cpu4_ep: endpoint { remote-endpoint = <&fe01_ep>; }; }; + port@3 { reg = <3>; cpu3_ep: endpoint { remote-endpoint = <&fe00_ep>; }; }; + port@4 { reg = <4>; cpu4_ep: endpoint { remote-endpoint = <&fe01_ep>; }; }; /* [DPCM-Multi]::FE */ - port@5 { cpu5_ep: endpoint { remote-endpoint = <&fe10_ep>; }; }; - port@6 { cpu6_ep: endpoint { remote-endpoint = <&fe11_ep>; }; }; + port@5 { reg = <5>; cpu5_ep: endpoint { remote-endpoint = <&fe10_ep>; }; }; + port@6 { reg = <6>; cpu6_ep: endpoint { remote-endpoint = <&fe11_ep>; }; }; + + /* [Semi-Multi] */ + sm0: port@7 { reg = <7>; cpu7_ep: endpoint { remote-endpoint = <&smcodec0_ep>; }; }; }; }; @@ -275,6 +344,9 @@ */ compatible = "test-codec"; ports { + #address-cells = <1>; + #size-cells = <0>; + /* * prefix can be added to *component*, * see audio-graph-card2::routing @@ -282,35 +354,40 @@ prefix = "TC"; /* [Normal] */ - port@0 { codec0_ep: endpoint { remote-endpoint = <&cpu0_ep>; }; }; + port@0 { reg = <0>; codec0_ep: endpoint { remote-endpoint = <&cpu0_ep>; }; }; /* [Multi-Codec] */ - port@1 { codec1_ep: endpoint { remote-endpoint = <&mcodec1_ep>; }; }; - port@2 { codec2_ep: endpoint { remote-endpoint = <&mcodec2_ep>; }; }; + port@1 { reg = <1>; codec1_ep: endpoint { remote-endpoint = <&mcodec1_ep>; }; }; + port@2 { reg = <2>; codec2_ep: endpoint { remote-endpoint = <&mcodec2_ep>; }; }; /* [DPCM]::BE */ port@3 { convert-rate = <44100>; - codec3_ep: endpoint { remote-endpoint = <&be00_ep>; }; + reg = <3>; codec3_ep: endpoint { remote-endpoint = <&be00_ep>; }; }; /* [DPCM-Multi]::BE */ - port@4 { codec4_ep: endpoint { remote-endpoint = <&mbe1_ep>; }; }; - port@5 { codec5_ep: endpoint { remote-endpoint = <&mbe2_ep>; }; }; + port@4 { reg = <4>; codec4_ep: endpoint { remote-endpoint = <&mbe1_ep>; }; }; + port@5 { reg = <5>; codec5_ep: endpoint { remote-endpoint = <&mbe2_ep>; }; }; /* [Codec2Codec] */ port@6 { bitclock-master; frame-master; - codec6_ep: endpoint { remote-endpoint = <&c2cf_ep>; }; }; - port@7 { codec7_ep: endpoint { remote-endpoint = <&c2cb_ep>; }; }; + reg = <6>; codec6_ep: endpoint { remote-endpoint = <&c2cf_ep>; }; }; + port@7 { reg = <7>; codec7_ep: endpoint { remote-endpoint = <&c2cb_ep>; }; }; /* [Codec2Codec-Multi] */ port@8 { bitclock-master; frame-master; - codec8_ep: endpoint { remote-endpoint = <&mc2c00_ep>; }; }; - port@9 { codec9_ep: endpoint { remote-endpoint = <&mc2c01_ep>; }; }; - port@10 { codec10_ep: endpoint { remote-endpoint = <&mc2c10_ep>; }; }; - port@11 { codec11_ep: endpoint { remote-endpoint = <&mc2c11_ep>; }; }; + reg = <8>; codec8_ep: endpoint { remote-endpoint = <&mc2c00_ep>; }; }; + port@9 { reg = <9>; codec9_ep: endpoint { remote-endpoint = <&mc2c01_ep>; }; }; + port@a { reg = <10>; codec10_ep: endpoint { remote-endpoint = <&mc2c10_ep>; }; }; + port@b { reg = <11>; codec11_ep: endpoint { remote-endpoint = <&mc2c11_ep>; }; }; + + /* [Semi-Multi] */ + port@c { reg = <12>; codec12_ep: endpoint { remote-endpoint = <&smcodec1_ep>; }; }; + port@d { reg = <13>; codec13_ep: endpoint { remote-endpoint = <&smcodec2_ep>; }; }; + }; }; }; diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c index 25aa79dd55b3..542c4a114940 100644 --- a/sound/soc/generic/audio-graph-card2.c +++ b/sound/soc/generic/audio-graph-card2.c @@ -353,111 +353,6 @@ static const struct snd_soc_ops graph_ops = { .hw_params = asoc_simple_hw_params, }; -static int graph_get_dai_id(struct device_node *ep) -{ - struct device_node *node; - struct device_node *endpoint; - struct of_endpoint info; - int i, id; - const u32 *reg; - int ret; - - /* use driver specified DAI ID if exist */ - ret = snd_soc_get_dai_id(ep); - if (ret != -ENOTSUPP) - return ret; - - /* use endpoint/port reg if exist */ - ret = of_graph_parse_endpoint(ep, &info); - if (ret == 0) { - /* - * Because it will count port/endpoint if it doesn't have "reg". - * But, we can't judge whether it has "no reg", or "reg = <0>" - * only of_graph_parse_endpoint(). - * We need to check "reg" property - */ - if (of_property_present(ep, "reg")) - return info.id; - - node = of_get_parent(ep); - reg = of_get_property(node, "reg", NULL); - of_node_put(node); - if (reg) - return info.port; - } - node = of_graph_get_port_parent(ep); - - /* - * Non HDMI sound case, counting port/endpoint on its DT - * is enough. Let's count it. - */ - i = 0; - id = -1; - for_each_endpoint_of_node(node, endpoint) { - if (endpoint == ep) - id = i; - i++; - } - - of_node_put(node); - - if (id < 0) - return -ENODEV; - - return id; -} - -static int asoc_simple_parse_dai(struct device_node *ep, - struct snd_soc_dai_link_component *dlc, - int *is_single_link) -{ - struct device_node *node; - struct of_phandle_args args; - int ret; - - if (!ep) - return 0; - - node = of_graph_get_port_parent(ep); - - /* Get dai->name */ - args.np = node; - args.args[0] = graph_get_dai_id(ep); - args.args_count = (of_graph_get_endpoint_count(node) > 1); - - /* - * FIXME - * - * Here, dlc->dai_name is pointer to CPU/Codec DAI name. - * If user unbinded CPU or Codec driver, but not for Sound Card, - * dlc->dai_name is keeping unbinded CPU or Codec - * driver's pointer. - * - * If user re-bind CPU or Codec driver again, ALSA SoC will try - * to rebind Card via snd_soc_try_rebind_card(), but because of - * above reason, it might can't bind Sound Card. - * Because Sound Card is pointing to released dai_name pointer. - * - * To avoid this rebind Card issue, - * 1) It needs to alloc memory to keep dai_name eventhough - * CPU or Codec driver was unbinded, or - * 2) user need to rebind Sound Card everytime - * if he unbinded CPU or Codec. - */ - ret = snd_soc_get_dai_name(&args, &dlc->dai_name); - if (ret < 0) { - of_node_put(node); - return ret; - } - - dlc->of_node = node; - - if (is_single_link) - *is_single_link = of_graph_get_endpoint_count(node) == 1; - - return 0; -} - static void graph_parse_convert(struct device_node *ep, struct simple_dai_props *props) { @@ -512,7 +407,7 @@ static int __graph_parse_node(struct asoc_simple_priv *priv, graph_parse_mclk_fs(ep, dai_props); - ret = asoc_simple_parse_dai(ep, dlc, &is_single_links); + ret = asoc_graph_parse_dai(ep, dlc, &is_single_links); if (ret < 0) return ret; diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index e5ff61c1e9d1..3019626b0592 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -889,11 +889,6 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, dev_dbg(dev, "link %d, dais %d, ccnf %d\n", li->link, dai_num, cnf_num); - /* dummy CPU/Codec */ - priv->dummy.of_node = NULL; - priv->dummy.dai_name = "snd-soc-dummy-dai"; - priv->dummy.name = "snd-soc-dummy"; - priv->dai_props = dai_props; priv->dai_link = dai_link; priv->dais = dais; @@ -908,7 +903,6 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, for (i = 0; i < li->link; i++) { if (li->num[i].cpus) { /* Normal CPU */ - dai_props[i].cpus = dai_link[i].cpus = dlcs; dai_props[i].num.cpus = dai_link[i].num_cpus = li->num[i].cpus; @@ -918,15 +912,13 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, dais += li->num[i].cpus; } else { /* DPCM Be's CPU = dummy */ - dai_props[i].cpus = - dai_link[i].cpus = &priv->dummy; + dai_link[i].cpus = &asoc_dummy_dlc; dai_props[i].num.cpus = dai_link[i].num_cpus = 1; } if (li->num[i].codecs) { /* Normal Codec */ - dai_props[i].codecs = dai_link[i].codecs = dlcs; dai_props[i].num.codecs = dai_link[i].num_codecs = li->num[i].codecs; @@ -942,15 +934,13 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, } } else { /* DPCM Fe's Codec = dummy */ - dai_props[i].codecs = - dai_link[i].codecs = &priv->dummy; + dai_link[i].codecs = &asoc_dummy_dlc; dai_props[i].num.codecs = dai_link[i].num_codecs = 1; } if (li->num[i].platforms) { /* Have Platform */ - dai_props[i].platforms = dai_link[i].platforms = dlcs; dai_props[i].num.platforms = dai_link[i].num_platforms = li->num[i].platforms; @@ -958,7 +948,6 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, dlcs += li->num[i].platforms; } else { /* Doesn't have Platform */ - dai_props[i].platforms = dai_link[i].platforms = NULL; dai_props[i].num.platforms = dai_link[i].num_platforms = 0; @@ -1024,6 +1013,109 @@ int asoc_graph_is_ports0(struct device_node *np) } EXPORT_SYMBOL_GPL(asoc_graph_is_ports0); +static int graph_get_dai_id(struct device_node *ep) +{ + struct device_node *node; + struct device_node *endpoint; + struct of_endpoint info; + int i, id; + int ret; + + /* use driver specified DAI ID if exist */ + ret = snd_soc_get_dai_id(ep); + if (ret != -ENOTSUPP) + return ret; + + /* use endpoint/port reg if exist */ + ret = of_graph_parse_endpoint(ep, &info); + if (ret == 0) { + /* + * Because it will count port/endpoint if it doesn't have "reg". + * But, we can't judge whether it has "no reg", or "reg = <0>" + * only of_graph_parse_endpoint(). + * We need to check "reg" property + */ + if (of_property_present(ep, "reg")) + return info.id; + + node = of_get_parent(ep); + ret = of_property_present(node, "reg"); + of_node_put(node); + if (ret) + return info.port; + } + node = of_graph_get_port_parent(ep); + + /* + * Non HDMI sound case, counting port/endpoint on its DT + * is enough. Let's count it. + */ + i = 0; + id = -1; + for_each_endpoint_of_node(node, endpoint) { + if (endpoint == ep) + id = i; + i++; + } + + of_node_put(node); + + if (id < 0) + return -ENODEV; + + return id; +} + +int asoc_graph_parse_dai(struct device_node *ep, + struct snd_soc_dai_link_component *dlc, + int *is_single_link) +{ + struct device_node *node; + struct of_phandle_args args = {}; + int ret; + + if (!ep) + return 0; + + node = of_graph_get_port_parent(ep); + + /* Get dai->name */ + args.np = node; + args.args[0] = graph_get_dai_id(ep); + args.args_count = (of_graph_get_endpoint_count(node) > 1); + + /* + * FIXME + * + * Here, dlc->dai_name is pointer to CPU/Codec DAI name. + * If user unbinded CPU or Codec driver, but not for Sound Card, + * dlc->dai_name is keeping unbinded CPU or Codec + * driver's pointer. + * + * If user re-bind CPU or Codec driver again, ALSA SoC will try + * to rebind Card via snd_soc_try_rebind_card(), but because of + * above reason, it might can't bind Sound Card. + * Because Sound Card is pointing to released dai_name pointer. + * + * To avoid this rebind Card issue, + * 1) It needs to alloc memory to keep dai_name eventhough + * CPU or Codec driver was unbinded, or + * 2) user need to rebind Sound Card everytime + * if he unbinded CPU or Codec. + */ + ret = snd_soc_get_dlc(&args, dlc); + if (ret < 0) { + of_node_put(node); + return ret; + } + + if (is_single_link) + *is_single_link = of_graph_get_endpoint_count(node) == 1; + + return 0; +} +EXPORT_SYMBOL_GPL(asoc_graph_parse_dai); + /* Module information */ MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); MODULE_DESCRIPTION("ALSA SoC Simple Card Utils"); diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 5a5e4ecd0f61..0745bf6a09aa 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -89,12 +89,10 @@ static int asoc_simple_parse_dai(struct device_node *node, * 2) user need to rebind Sound Card everytime * if he unbinded CPU or Codec. */ - ret = snd_soc_of_get_dai_name(node, &dlc->dai_name); + ret = snd_soc_get_dlc(&args, dlc); if (ret < 0) return ret; - dlc->of_node = args.np; - if (is_single_link) *is_single_link = !args.args_count; |