static int simple_parse_aux_devs(struct device_node *node,
struct simple_priv *priv)
{
struct device *dev = simple_priv_to_dev(priv);
struct device_node *aux_node;
struct snd_soc_card *card = simple_priv_to_card(priv);
int i, n, len;
if (!of_find_property(node, PREFIX "aux-devs", &len))
return 0; /* Ok to have no aux-devs */
n = len / sizeof(__be32);
if (n <= 0)
return -EINVAL;
card->aux_dev = devm_kcalloc(dev,
n, sizeof(*card->aux_dev), GFP_KERNEL);
if (!card->aux_dev)
return -ENOMEM;
for (i = 0; i < n; i++) {
aux_node = of_parse_phandle(node, PREFIX "aux-devs", i);
if (!aux_node)
return -EINVAL;
card->aux_dev[i].codec_of_node = aux_node;
}
card->num_aux_devs = n;
return 0;
}
static int asoc_simple_card_parse_of(struct device_node *node,
struct simple_card_data *priv)
{
struct device *dev = simple_priv_to_dev(priv);
enum of_gpio_flags flags;
u32 val;
int ret;
if (!node)
return -EINVAL;
/* Parse the card name from DT */
snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name");
/* The off-codec widgets */
if (of_property_read_bool(node, "simple-audio-card,widgets")) {
ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card,
"simple-audio-card,widgets");
if (ret)
return ret;
}
/* DAPM routes */
if (of_property_read_bool(node, "simple-audio-card,routing")) {
ret = snd_soc_of_parse_audio_routing(&priv->snd_card,
"simple-audio-card,routing");
if (ret)
return ret;
}
/* Factor to mclk, used in hw_params() */
ret = of_property_read_u32(node, "simple-audio-card,mclk-fs", &val);
if (ret == 0)
priv->mclk_fs = val;
dev_dbg(dev, "New simple-card: %s\n", priv->snd_card.name ?
priv->snd_card.name : "");
/* Single/Muti DAI link(s) & New style of DT node */
if (of_get_child_by_name(node, "simple-audio-card,dai-link")) {
struct device_node *np = NULL;
int i = 0;
for_each_child_of_node(node, np) {
dev_dbg(dev, "\tlink %d:\n", i);
ret = asoc_simple_card_dai_link_of(np, priv,
i, false);
if (ret < 0) {
of_node_put(np);
return ret;
}
i++;
}
} else {
static int simple_parse_of(struct simple_priv *priv)
{
struct device *dev = simple_priv_to_dev(priv);
struct device_node *top = dev->of_node;
struct snd_soc_card *card = simple_priv_to_card(priv);
struct link_info li;
int ret;
if (!top)
return -EINVAL;
ret = asoc_simple_card_of_parse_widgets(card, PREFIX);
if (ret < 0)
return ret;
ret = asoc_simple_card_of_parse_routing(card, PREFIX);
if (ret < 0)
return ret;
/* Single/Muti DAI link(s) & New style of DT node */
memset(&li, 0, sizeof(li));
for (li.cpu = 1; li.cpu >= 0; li.cpu--) {
/*
* Detect all CPU first, and Detect all Codec 2nd.
*
* In Normal sound case, all DAIs are detected
* as "CPU-Codec".
*
* In DPCM sound case,
* all CPUs are detected as "CPU-dummy", and
* all Codecs are detected as "dummy-Codec".
* To avoid random sub-device numbering,
* detect "dummy-Codec" in last;
*/
ret = simple_for_each_link(priv, &li,
simple_dai_link_of,
simple_dai_link_of_dpcm);
if (ret < 0)
return ret;
}
ret = asoc_simple_card_parse_card_name(card, PREFIX);
if (ret < 0)
return ret;
ret = simple_parse_aux_devs(top, priv);
return ret;
}
static int asoc_simple_card_parse_of(struct device_node *node,
struct simple_card_data *priv)
{
struct device *dev = simple_priv_to_dev(priv);
struct device_node *dai_link;
int ret;
if (!node)
return -EINVAL;
dai_link = of_get_child_by_name(node, PREFIX "dai-link");
/* The off-codec widgets */
if (of_property_read_bool(node, PREFIX "widgets")) {
ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card,
PREFIX "widgets");
if (ret)
goto card_parse_end;
}
/* DAPM routes */
if (of_property_read_bool(node, PREFIX "routing")) {
ret = snd_soc_of_parse_audio_routing(&priv->snd_card,
PREFIX "routing");
if (ret)
goto card_parse_end;
}
/* Factor to mclk, used in hw_params() */
of_property_read_u32(node, PREFIX "mclk-fs", &priv->mclk_fs);
/* Single/Muti DAI link(s) & New style of DT node */
if (dai_link) {
struct device_node *np = NULL;
int i = 0;
for_each_child_of_node(node, np) {
dev_dbg(dev, "\tlink %d:\n", i);
ret = asoc_simple_card_dai_link_of(np, priv,
i, false);
if (ret < 0) {
of_node_put(np);
goto card_parse_end;
}
i++;
}
} else {
static int asoc_simple_card_parse_of(struct simple_card_data *priv)
{
struct device *dev = simple_priv_to_dev(priv);
struct device_node *np;
struct snd_soc_card *card = simple_priv_to_card(priv);
struct device_node *node = dev->of_node;
unsigned int daifmt = 0;
bool is_fe;
int ret, i;
if (!node)
return -EINVAL;
ret = asoc_simple_card_of_parse_widgets(card, PREFIX);
if (ret < 0)
return ret;
ret = asoc_simple_card_of_parse_routing(card, PREFIX, 0);
if (ret < 0)
return ret;
asoc_simple_card_parse_convert(dev, PREFIX, &priv->adata);
/* find 1st codec */
np = of_get_child_by_name(node, PREFIX "codec");
if (!np)
return -ENODEV;
ret = asoc_simple_card_parse_daifmt(dev, node, np, PREFIX, &daifmt);
if (ret < 0)
return ret;
i = 0;
for_each_child_of_node(node, np) {
is_fe = false;
if (strcmp(np->name, PREFIX "cpu") == 0)
is_fe = true;
ret = asoc_simple_card_dai_link_of(np, priv, daifmt, i, is_fe);
if (ret < 0)
return ret;
i++;
}
static int asoc_simple_card_parse_daifmt(struct device_node *node,
struct simple_card_data *priv,
struct device_node *codec,
char *prefix, int idx)
{
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
struct device *dev = simple_priv_to_dev(priv);
struct device_node *bitclkmaster = NULL;
struct device_node *framemaster = NULL;
unsigned int daifmt;
daifmt = snd_soc_of_parse_daifmt(node, prefix,
&bitclkmaster, &framemaster);
daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
if (strlen(prefix) && !bitclkmaster && !framemaster) {
/*
* No dai-link level and master setting was not found from
* sound node level, revert back to legacy DT parsing and
* take the settings from codec node.
*/
dev_dbg(dev, "Revert to legacy daifmt parsing\n");
daifmt = snd_soc_of_parse_daifmt(codec, NULL, NULL, NULL) |
(daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK);
} else {
if (codec == bitclkmaster)
daifmt |= (codec == framemaster) ?
SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS;
else
daifmt |= (codec == framemaster) ?
SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
}
dai_link->dai_fmt = daifmt;
of_node_put(bitclkmaster);
of_node_put(framemaster);
return 0;
}
dai->sysclk = clk_get_rate(clk);
dai->clk = clk;
} else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
dai->sysclk = val;
} else {
clk = of_clk_get(args.np, 0);
if (!IS_ERR(clk))
dai->sysclk = clk_get_rate(clk);
}
return 0;
}
static int asoc_s;
struct device *dev = simple_priv_to_dev(priv);
struct device_node *bitclkmaster = NULL;
struct device_node *framemaster = NULL;
unsigned int daifmt;
daifmt = snd_soc_of_parse_daifmt(node, prefix,
&bitclkmaster, &framemaster);
daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
if (strlen(prefix) && !bitclkmaster && !framemaster) {
/*
* No dai-link level and master setting was not found from
* sound node level, revert back to legacy DT parsing and
* take the settings from codec node.
*/
dev_dbg(dev, "Revert to legacy daifmt parsing\n");
static int asoc_simple_card_dai_link_of(struct device_node *np,
struct simple_card_data *priv,
unsigned int daifmt,
int idx, bool is_fe)
{
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
struct asoc_simple_dai *dai_props = simple_priv_to_props(priv, idx);
struct snd_soc_card *card = simple_priv_to_card(priv);
int ret;
if (is_fe) {
int is_single_links = 0;
/* BE is dummy */
dai_link->codec_of_node = NULL;
dai_link->codec_dai_name = "snd-soc-dummy-dai";
dai_link->codec_name = "snd-soc-dummy";
/* FE settings */
dai_link->dynamic = 1;
dai_link->dpcm_merged_format = 1;
ret = asoc_simple_card_parse_cpu(np, dai_link, DAI, CELL,
&is_single_links);
if (ret)
return ret;
ret = asoc_simple_card_parse_clk_cpu(dev, np, dai_link, dai_props);
if (ret < 0)
return ret;
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"fe.%s",
dai_link->cpu_dai_name);
if (ret < 0)
return ret;
asoc_simple_card_canonicalize_cpu(dai_link, is_single_links);
} else {
/* FE is dummy */
dai_link->cpu_of_node = NULL;
dai_link->cpu_dai_name = "snd-soc-dummy-dai";
dai_link->cpu_name = "snd-soc-dummy";
/* BE settings */
dai_link->no_pcm = 1;
dai_link->be_hw_params_fixup = asoc_simple_card_be_hw_params_fixup;
ret = asoc_simple_card_parse_codec(np, dai_link, DAI, CELL);
if (ret < 0)
return ret;
ret = asoc_simple_card_parse_clk_codec(dev, np, dai_link, dai_props);
if (ret < 0)
return ret;
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"be.%s",
dai_link->codec_dai_name);
if (ret < 0)
return ret;
snd_soc_of_parse_audio_prefix(card,
&priv->codec_conf,
dai_link->codec_of_node,
PREFIX "prefix");
}
ret = asoc_simple_card_of_parse_tdm(np, dai_props);
if (ret)
return ret;
ret = asoc_simple_card_canonicalize_dailink(dai_link);
if (ret < 0)
return ret;
dai_link->dai_fmt = daifmt;
dai_link->dpcm_playback = 1;
dai_link->dpcm_capture = 1;
dai_link->ops = &asoc_simple_card_ops;
dai_link->init = asoc_simple_card_dai_init;
return 0;
}
static int asoc_simple_card_dai_link_of(struct device_node *node,
struct simple_card_data *priv,
int idx,
bool is_top_level_node)
{
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx);
struct device_node *np = NULL;
struct device_node *bitclkmaster = NULL;
struct device_node *framemaster = NULL;
unsigned int daifmt;
char *name;
char prop[128];
char *prefix = "";
int ret, cpu_args;
/* For single DAI link & old style of DT node */
if (is_top_level_node)
prefix = "simple-audio-card,";
daifmt = snd_soc_of_parse_daifmt(node, prefix,
&bitclkmaster, &framemaster);
daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
snprintf(prop, sizeof(prop), "%scpu", prefix);
np = of_get_child_by_name(node, prop);
if (!np) {
ret = -EINVAL;
dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
goto dai_link_of_err;
}
ret = asoc_simple_card_sub_parse_of(np, &dai_props->cpu_dai,
&dai_link->cpu_of_node,
&dai_link->cpu_dai_name,
&cpu_args);
if (ret < 0)
goto dai_link_of_err;
dai_props->cpu_dai.fmt = daifmt;
switch (((np == bitclkmaster) << 4) | (np == framemaster)) {
case 0x11:
dai_props->cpu_dai.fmt |= SND_SOC_DAIFMT_CBS_CFS;
break;
case 0x10:
dai_props->cpu_dai.fmt |= SND_SOC_DAIFMT_CBS_CFM;
break;
case 0x01:
dai_props->cpu_dai.fmt |= SND_SOC_DAIFMT_CBM_CFS;
break;
default:
dai_props->cpu_dai.fmt |= SND_SOC_DAIFMT_CBM_CFM;
break;
}
of_node_put(np);
snprintf(prop, sizeof(prop), "%scodec", prefix);
np = of_get_child_by_name(node, prop);
if (!np) {
ret = -EINVAL;
dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
goto dai_link_of_err;
}
ret = asoc_simple_card_sub_parse_of(np, &dai_props->codec_dai,
&dai_link->codec_of_node,
&dai_link->codec_dai_name, NULL);
if (ret < 0)
goto dai_link_of_err;
if (strlen(prefix) && !bitclkmaster && !framemaster) {
/*
* No DAI link level and master setting was found
* from sound node level, revert back to legacy DT
* parsing and take the settings from codec node.
*/
dev_dbg(dev, "%s: Revert to legacy daifmt parsing\n",
__func__);
dai_props->cpu_dai.fmt = dai_props->codec_dai.fmt =
snd_soc_of_parse_daifmt(np, NULL, NULL, NULL) |
(daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK);
} else {
dai_props->codec_dai.fmt = daifmt;
switch (((np == bitclkmaster) << 4) | (np == framemaster)) {
case 0x11:
dai_props->codec_dai.fmt |= SND_SOC_DAIFMT_CBM_CFM;
break;
case 0x10:
dai_props->codec_dai.fmt |= SND_SOC_DAIFMT_CBM_CFS;
break;
case 0x01:
dai_props->codec_dai.fmt |= SND_SOC_DAIFMT_CBS_CFM;
break;
default:
dai_props->codec_dai.fmt |= SND_SOC_DAIFMT_CBS_CFS;
break;
}
}
if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) {
ret = -EINVAL;
goto dai_link_of_err;
}
/* Simple Card assumes platform == cpu */
dai_link->platform_of_node = dai_link->cpu_of_node;
/* DAI link name is created from CPU/CODEC dai name */
name = devm_kzalloc(dev,
strlen(dai_link->cpu_dai_name) +
strlen(dai_link->codec_dai_name) + 2,
GFP_KERNEL);
sprintf(name, "%s-%s", dai_link->cpu_dai_name,
dai_link->codec_dai_name);
dai_link->name = dai_link->stream_name = name;
dai_link->ops = &asoc_simple_card_ops;
dai_link->init = asoc_simple_card_dai_init;
dev_dbg(dev, "\tname : %s\n", dai_link->stream_name);
dev_dbg(dev, "\tcpu : %s / %04x / %d\n",
dai_link->cpu_dai_name,
dai_props->cpu_dai.fmt,
dai_props->cpu_dai.sysclk);
dev_dbg(dev, "\tcodec : %s / %04x / %d\n",
dai_link->codec_dai_name,
dai_props->codec_dai.fmt,
dai_props->codec_dai.sysclk);
/*
* In soc_bind_dai_link() will check cpu name after
* of_node matching if dai_link has cpu_dai_name.
* but, it will never match if name was created by
* fmt_single_name() remove cpu_dai_name if cpu_args
* was 0. See:
* fmt_single_name()
* fmt_multiple_name()
*/
if (!cpu_args)
dai_link->cpu_dai_name = NULL;
dai_link_of_err:
if (np)
of_node_put(np);
if (bitclkmaster)
of_node_put(bitclkmaster);
if (framemaster)
of_node_put(framemaster);
return ret;
}
static void simple_get_dais_count(struct simple_priv *priv,
struct link_info *li)
{
struct device *dev = simple_priv_to_dev(priv);
struct device_node *top = dev->of_node;
/*
* link_num : number of links.
* CPU-Codec / CPU-dummy / dummy-Codec
* dais_num : number of DAIs
* ccnf_num : number of codec_conf
* same number for "dummy-Codec"
*
* ex1)
* CPU0 --- Codec0 link : 5
* CPU1 --- Codec1 dais : 7
* CPU2 -/ ccnf : 1
* CPU3 --- Codec2
*
* => 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec
* => 7 DAIs = 4xCPU + 3xCodec
* => 1 ccnf = 1xdummy-Codec
*
* ex2)
* CPU0 --- Codec0 link : 5
* CPU1 --- Codec1 dais : 6
* CPU2 -/ ccnf : 1
* CPU3 -/
*
* => 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec
* => 6 DAIs = 4xCPU + 2xCodec
* => 1 ccnf = 1xdummy-Codec
*
* ex3)
* CPU0 --- Codec0 link : 6
* CPU1 -/ dais : 6
* CPU2 --- Codec1 ccnf : 2
* CPU3 -/
*
* => 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec
* => 6 DAIs = 4xCPU + 2xCodec
* => 2 ccnf = 2xdummy-Codec
*
* ex4)
* CPU0 --- Codec0 (convert-rate) link : 3
* CPU1 --- Codec1 dais : 4
* ccnf : 1
*
* => 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec
* => 4 DAIs = 2xCPU + 2xCodec
* => 1 ccnf = 1xdummy-Codec
*/
if (!top) {
li->link = 1;
li->dais = 2;
li->conf = 0;
return;
}
simple_for_each_link(priv, li,
simple_count_noml,
simple_count_dpcm);
dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
li->link, li->dais, li->conf);
}
static int simple_for_each_link(struct simple_priv *priv,
struct link_info *li,
int (*func_noml)(struct simple_priv *priv,
struct device_node *np,
struct device_node *codec,
struct link_info *li, bool is_top),
int (*func_dpcm)(struct simple_priv *priv,
struct device_node *np,
struct device_node *codec,
struct link_info *li, bool is_top))
{
struct device *dev = simple_priv_to_dev(priv);
struct device_node *top = dev->of_node;
struct device_node *node;
uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
bool is_top = 0;
int ret = 0;
/* Check if it has dai-link */
node = of_get_child_by_name(top, PREFIX "dai-link");
if (!node) {
node = of_node_get(top);
is_top = 1;
}
/* loop for all dai-link */
do {
struct asoc_simple_card_data adata;
struct device_node *codec;
struct device_node *np;
int num = of_get_child_count(node);
/* get codec */
codec = of_get_child_by_name(node, is_top ?
PREFIX "codec" : "codec");
if (!codec) {
ret = -ENODEV;
goto error;
}
of_node_put(codec);
/* get convert-xxx property */
memset(&adata, 0, sizeof(adata));
for_each_child_of_node(node, np)
simple_get_conversion(dev, np, &adata);
/* loop for all CPU/Codec node */
for_each_child_of_node(node, np) {
/*
* It is DPCM
* if it has many CPUs,
* or has convert-xxx property
*/
if (dpcm_selectable &&
(num > 2 ||
adata.convert_rate || adata.convert_channels))
ret = func_dpcm(priv, np, codec, li, is_top);
/* else normal sound */
else
ret = func_noml(priv, np, codec, li, is_top);
if (ret < 0) {
of_node_put(np);
goto error;
}
}
node = of_get_next_child(top, node);
} while (!is_top && node);
error:
of_node_put(node);
return ret;
}
static int simple_dai_link_of(struct simple_priv *priv,
struct device_node *np,
struct device_node *codec,
struct link_info *li,
bool is_top)
{
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
struct asoc_simple_dai *cpu_dai;
struct asoc_simple_dai *codec_dai;
struct device_node *top = dev->of_node;
struct device_node *cpu = NULL;
struct device_node *node = NULL;
struct device_node *plat = NULL;
char prop[128];
char *prefix = "";
int ret, single_cpu;
/*
* |CPU |Codec : turn
* CPU |Pass |return
* Codec |return|return
* np
*/
if (!li->cpu || np == codec)
return 0;
cpu = np;
node = of_get_parent(np);
li->link++;
dev_dbg(dev, "link_of (%pOF)\n", node);
/* For single DAI link & old style of DT node */
if (is_top)
prefix = PREFIX;
snprintf(prop, sizeof(prop), "%splat", prefix);
plat = of_get_child_by_name(node, prop);
cpu_dai =
dai_props->cpu_dai = &priv->dais[li->dais++];
codec_dai =
dai_props->codec_dai = &priv->dais[li->dais++];
ret = asoc_simple_card_parse_daifmt(dev, node, codec,
prefix, &dai_link->dai_fmt);
if (ret < 0)
goto dai_link_of_err;
snprintf(prop, sizeof(prop), "%smclk-fs", prefix);
of_property_read_u32(top, PREFIX "mclk-fs", &dai_props->mclk_fs);
of_property_read_u32(node, prop, &dai_props->mclk_fs);
of_property_read_u32(cpu, prop, &dai_props->mclk_fs);
of_property_read_u32(codec, prop, &dai_props->mclk_fs);
ret = asoc_simple_card_parse_cpu(cpu, dai_link,
DAI, CELL, &single_cpu);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_codec(codec, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_platform(plat, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_of_parse_tdm(cpu, cpu_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_of_parse_tdm(codec, codec_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_clk_cpu(dev, cpu, dai_link, cpu_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_clk_codec(dev, codec, dai_link, codec_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"%s-%s",
dai_link->cpu_dai_name,
dai_link->codecs->dai_name);
if (ret < 0)
goto dai_link_of_err;
dai_link->ops = &simple_ops;
dai_link->init = simple_dai_init;
asoc_simple_card_canonicalize_cpu(dai_link, single_cpu);
asoc_simple_card_canonicalize_platform(dai_link);
dai_link_of_err:
of_node_put(plat);
of_node_put(node);
return ret;
}
static int simple_dai_link_of_dpcm(struct simple_priv *priv,
struct device_node *np,
struct device_node *codec,
struct link_info *li,
bool is_top)
{
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
struct asoc_simple_dai *dai;
struct snd_soc_dai_link_component *codecs = dai_link->codecs;
struct device_node *top = dev->of_node;
struct device_node *node = of_get_parent(np);
char prop[128];
char *prefix = "";
int ret;
/*
* |CPU |Codec : turn
* CPU |Pass |return
* Codec |return|Pass
* np
*/
if (li->cpu == (np == codec))
return 0;
dev_dbg(dev, "link_of DPCM (%pOF)\n", np);
li->link++;
of_node_put(node);
/* For single DAI link & old style of DT node */
if (is_top)
prefix = PREFIX;
if (li->cpu) {
int is_single_links = 0;
/* BE is dummy */
codecs->of_node = NULL;
codecs->dai_name = "snd-soc-dummy-dai";
codecs->name = "snd-soc-dummy";
/* FE settings */
dai_link->dynamic = 1;
dai_link->dpcm_merged_format = 1;
dai =
dai_props->cpu_dai = &priv->dais[li->dais++];
ret = asoc_simple_card_parse_cpu(np, dai_link, DAI, CELL,
&is_single_links);
if (ret)
return ret;
ret = asoc_simple_card_parse_clk_cpu(dev, np, dai_link, dai);
if (ret < 0)
return ret;
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"fe.%s",
dai_link->cpu_dai_name);
if (ret < 0)
return ret;
asoc_simple_card_canonicalize_cpu(dai_link, is_single_links);
} else {
struct snd_soc_codec_conf *cconf;
/* FE is dummy */
dai_link->cpu_of_node = NULL;
dai_link->cpu_dai_name = "snd-soc-dummy-dai";
dai_link->cpu_name = "snd-soc-dummy";
/* BE settings */
dai_link->no_pcm = 1;
dai_link->be_hw_params_fixup = simple_be_hw_params_fixup;
dai =
dai_props->codec_dai = &priv->dais[li->dais++];
cconf =
dai_props->codec_conf = &priv->codec_conf[li->conf++];
ret = asoc_simple_card_parse_codec(np, dai_link, DAI, CELL);
if (ret < 0)
return ret;
ret = asoc_simple_card_parse_clk_codec(dev, np, dai_link, dai);
if (ret < 0)
return ret;
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"be.%s",
codecs->dai_name);
if (ret < 0)
return ret;
/* check "prefix" from top node */
snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
PREFIX "prefix");
snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,
"prefix");
snd_soc_of_parse_node_prefix(np, cconf, codecs->of_node,
"prefix");
}
simple_get_conversion(dev, np, &dai_props->adata);
asoc_simple_card_canonicalize_platform(dai_link);
ret = asoc_simple_card_of_parse_tdm(np, dai);
if (ret)
return ret;
snprintf(prop, sizeof(prop), "%smclk-fs", prefix);
of_property_read_u32(top, PREFIX "mclk-fs", &dai_props->mclk_fs);
of_property_read_u32(node, prop, &dai_props->mclk_fs);
of_property_read_u32(np, prop, &dai_props->mclk_fs);
ret = asoc_simple_card_parse_daifmt(dev, node, codec,
prefix, &dai_link->dai_fmt);
if (ret < 0)
return ret;
dai_link->dpcm_playback = 1;
dai_link->dpcm_capture = 1;
dai_link->ops = &simple_ops;
dai_link->init = simple_dai_init;
return 0;
}
static int asoc_simple_card_dai_link_of(struct device_node *node,
struct simple_card_data *priv,
int idx,
bool is_top_level_node)
{
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx);
struct device_node *cpu = NULL;
struct device_node *plat = NULL;
struct device_node *codec = NULL;
char *name;
char prop[128];
char *prefix = "";
int ret, cpu_args;
u32 val;
/* For single DAI link & old style of DT node */
if (is_top_level_node)
prefix = "simple-audio-card,";
snprintf(prop, sizeof(prop), "%scpu", prefix);
cpu = of_get_child_by_name(node, prop);
snprintf(prop, sizeof(prop), "%splat", prefix);
plat = of_get_child_by_name(node, prop);
snprintf(prop, sizeof(prop), "%scodec", prefix);
codec = of_get_child_by_name(node, prop);
if (!cpu || !codec) {
ret = -EINVAL;
dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
goto dai_link_of_err;
}
ret = asoc_simple_card_parse_daifmt(node, priv,
codec, prefix, idx);
if (ret < 0)
goto dai_link_of_err;
if (!of_property_read_u32(node, "mclk-fs", &val))
dai_props->mclk_fs = val;
ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai,
&dai_link->cpu_of_node,
&dai_link->cpu_dai_name,
&cpu_args);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai,
&dai_link->codec_of_node,
&dai_link->codec_dai_name, NULL);
if (ret < 0)
goto dai_link_of_err;
if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) {
ret = -EINVAL;
goto dai_link_of_err;
}
if (plat) {
struct of_phandle_args args;
ret = of_parse_phandle_with_args(plat, "sound-dai",
"#sound-dai-cells", 0, &args);
dai_link->platform_of_node = args.np;
} else {
/* Assumes platform == cpu */
dai_link->platform_of_node = dai_link->cpu_of_node;
}
/* DAI link name is created from CPU/CODEC dai name */
name = devm_kzalloc(dev,
strlen(dai_link->cpu_dai_name) +
strlen(dai_link->codec_dai_name) + 2,
GFP_KERNEL);
if (!name) {
ret = -ENOMEM;
goto dai_link_of_err;
}
sprintf(name, "%s-%s", dai_link->cpu_dai_name,
dai_link->codec_dai_name);
dai_link->name = dai_link->stream_name = name;
dai_link->ops = &asoc_simple_card_ops;
dai_link->init = asoc_simple_card_dai_init;
dev_dbg(dev, "\tname : %s\n", dai_link->stream_name);
dev_dbg(dev, "\tformat : %04x\n", dai_link->dai_fmt);
dev_dbg(dev, "\tcpu : %s / %d\n",
dai_link->cpu_dai_name,
dai_props->cpu_dai.sysclk);
dev_dbg(dev, "\tcodec : %s / %d\n",
dai_link->codec_dai_name,
dai_props->codec_dai.sysclk);
/*
* In soc_bind_dai_link() will check cpu name after
* of_node matching if dai_link has cpu_dai_name.
* but, it will never match if name was created by
* fmt_single_name() remove cpu_dai_name if cpu_args
* was 0. See:
* fmt_single_name()
* fmt_multiple_name()
*/
if (!cpu_args)
dai_link->cpu_dai_name = NULL;
dai_link_of_err:
of_node_put(cpu);
of_node_put(codec);
return ret;
}
static int asoc_simple_card_dai_link_of(struct device_node *node,
struct simple_card_data *priv,
int idx,
bool is_top_level_node)
{
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx);
struct asoc_simple_dai *cpu_dai = &dai_props->cpu_dai;
struct asoc_simple_dai *codec_dai = &dai_props->codec_dai;
struct device_node *cpu = NULL;
struct device_node *plat = NULL;
struct device_node *codec = NULL;
char prop[128];
char *prefix = "";
int ret, single_cpu;
/* For single DAI link & old style of DT node */
if (is_top_level_node)
prefix = PREFIX;
snprintf(prop, sizeof(prop), "%scpu", prefix);
cpu = of_get_child_by_name(node, prop);
if (!cpu) {
ret = -EINVAL;
dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
goto dai_link_of_err;
}
snprintf(prop, sizeof(prop), "%splat", prefix);
plat = of_get_child_by_name(node, prop);
snprintf(prop, sizeof(prop), "%scodec", prefix);
codec = of_get_child_by_name(node, prop);
if (!codec) {
ret = -EINVAL;
dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
goto dai_link_of_err;
}
ret = asoc_simple_card_parse_daifmt(dev, node, codec,
prefix, &dai_link->dai_fmt);
if (ret < 0)
goto dai_link_of_err;
of_property_read_u32(node, "mclk-fs", &dai_props->mclk_fs);
ret = asoc_simple_card_parse_cpu(cpu, dai_link,
DAI, CELL, &single_cpu);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_codec(codec, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_platform(plat, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_of_parse_tdm(cpu, cpu_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_of_parse_tdm(codec, codec_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_clk_cpu(dev, cpu, dai_link, cpu_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_clk_codec(dev, codec, dai_link, codec_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_canonicalize_dailink(dai_link);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"%s-%s",
dai_link->cpu_dai_name,
dai_link->codec_dai_name);
if (ret < 0)
goto dai_link_of_err;
dai_link->ops = &asoc_simple_card_ops;
dai_link->init = asoc_simple_card_dai_init;
asoc_simple_card_canonicalize_cpu(dai_link, single_cpu);
dai_link_of_err:
of_node_put(cpu);
of_node_put(codec);
return ret;
}