#include <linux/string.h>
#include <sound/simple_card.h>
+struct simple_card_data {
+ struct snd_soc_card snd_card;
+ unsigned int daifmt;
+ struct asoc_simple_dai cpu_dai;
+ struct asoc_simple_dai codec_dai;
+ struct snd_soc_dai_link snd_link;
+};
+
static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
- struct asoc_simple_dai *set,
- unsigned int daifmt)
+ struct asoc_simple_dai *set)
{
- int ret = 0;
-
- daifmt |= set->fmt;
-
- if (daifmt)
- ret = snd_soc_dai_set_fmt(dai, daifmt);
+ int ret;
- if (ret == -ENOTSUPP) {
- dev_dbg(dai->dev, "ASoC: set_fmt is not supported\n");
- ret = 0;
+ if (set->fmt) {
+ ret = snd_soc_dai_set_fmt(dai, set->fmt);
+ if (ret && ret != -ENOTSUPP) {
+ dev_err(dai->dev, "simple-card: set_fmt error\n");
+ goto err;
+ }
}
- if (!ret && set->sysclk)
+ if (set->sysclk) {
ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
+ if (ret && ret != -ENOTSUPP) {
+ dev_err(dai->dev, "simple-card: set_sysclk error\n");
+ goto err;
+ }
+ }
+
+ ret = 0;
+err:
return ret;
}
static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
{
- struct asoc_simple_card_info *info =
+ struct simple_card_data *priv =
snd_soc_card_get_drvdata(rtd->card);
struct snd_soc_dai *codec = rtd->codec_dai;
struct snd_soc_dai *cpu = rtd->cpu_dai;
- unsigned int daifmt = info->daifmt;
int ret;
- ret = __asoc_simple_card_dai_init(codec, &info->codec_dai, daifmt);
+ ret = __asoc_simple_card_dai_init(codec, &priv->codec_dai);
if (ret < 0)
return ret;
- ret = __asoc_simple_card_dai_init(cpu, &info->cpu_dai, daifmt);
+ ret = __asoc_simple_card_dai_init(cpu, &priv->cpu_dai);
if (ret < 0)
return ret;
static int
asoc_simple_card_sub_parse_of(struct device_node *np,
+ unsigned int daifmt,
struct asoc_simple_dai *dai,
- struct device_node **node)
+ const struct device_node **p_node,
+ const char **name)
{
+ struct device_node *node;
struct clk *clk;
int ret;
* get node via "sound-dai = <&phandle port>"
* it will be used as xxx_of_node on soc_bind_dai_link()
*/
- *node = of_parse_phandle(np, "sound-dai", 0);
- if (!*node)
+ node = of_parse_phandle(np, "sound-dai", 0);
+ if (!node)
return -ENODEV;
+ *p_node = node;
/* get dai->name */
- ret = snd_soc_of_get_dai_name(np, &dai->name);
+ ret = snd_soc_of_get_dai_name(np, name);
if (ret < 0)
goto parse_error;
* and specific "format" if it has
*/
dai->fmt = snd_soc_of_parse_daifmt(np, NULL);
+ dai->fmt |= daifmt;
/*
* dai->sysclk come from
"system-clock-frequency",
&dai->sysclk);
} else {
- clk = of_clk_get(*node, 0);
+ clk = of_clk_get(node, 0);
if (!IS_ERR(clk))
dai->sysclk = clk_get_rate(clk);
}
ret = 0;
parse_error:
- of_node_put(*node);
+ of_node_put(node);
return ret;
}
static int asoc_simple_card_parse_of(struct device_node *node,
- struct asoc_simple_card_info *info,
- struct device *dev,
- struct device_node **of_cpu,
- struct device_node **of_codec,
- struct device_node **of_platform)
+ struct simple_card_data *priv,
+ struct device *dev)
{
+ struct snd_soc_dai_link *dai_link = priv->snd_card.dai_link;
struct device_node *np;
char *name;
int ret;
+ /* parsing the card name from DT */
+ snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name");
+
/* get CPU/CODEC common format via simple-audio-card,format */
- info->daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,") &
+ priv->daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,") &
(SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK);
/* DAPM routes */
if (of_property_read_bool(node, "simple-audio-card,routing")) {
- ret = snd_soc_of_parse_audio_routing(&info->snd_card,
+ ret = snd_soc_of_parse_audio_routing(&priv->snd_card,
"simple-audio-card,routing");
if (ret)
return ret;
ret = -EINVAL;
np = of_get_child_by_name(node, "simple-audio-card,cpu");
if (np)
- ret = asoc_simple_card_sub_parse_of(np,
- &info->cpu_dai,
- of_cpu);
+ ret = asoc_simple_card_sub_parse_of(np, priv->daifmt,
+ &priv->cpu_dai,
+ &dai_link->cpu_of_node,
+ &dai_link->cpu_dai_name);
if (ret < 0)
return ret;
ret = -EINVAL;
np = of_get_child_by_name(node, "simple-audio-card,codec");
if (np)
- ret = asoc_simple_card_sub_parse_of(np,
- &info->codec_dai,
- of_codec);
+ ret = asoc_simple_card_sub_parse_of(np, priv->daifmt,
+ &priv->codec_dai,
+ &dai_link->codec_of_node,
+ &dai_link->codec_dai_name);
if (ret < 0)
return ret;
- if (!info->cpu_dai.name || !info->codec_dai.name)
+ if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name)
return -EINVAL;
/* card name is created from CPU/CODEC dai name */
name = devm_kzalloc(dev,
- strlen(info->cpu_dai.name) +
- strlen(info->codec_dai.name) + 2,
+ strlen(dai_link->cpu_dai_name) +
+ strlen(dai_link->codec_dai_name) + 2,
GFP_KERNEL);
- sprintf(name, "%s-%s", info->cpu_dai.name, info->codec_dai.name);
- info->name = info->card = name;
+ sprintf(name, "%s-%s", dai_link->cpu_dai_name,
+ dai_link->codec_dai_name);
+ if (!priv->snd_card.name)
+ priv->snd_card.name = name;
+ dai_link->name = dai_link->stream_name = name;
/* simple-card assumes platform == cpu */
- *of_platform = *of_cpu;
+ dai_link->platform_of_node = dai_link->cpu_of_node;
- dev_dbg(dev, "card-name : %s\n", info->card);
- dev_dbg(dev, "platform : %04x\n", info->daifmt);
+ dev_dbg(dev, "card-name : %s\n", name);
+ dev_dbg(dev, "platform : %04x\n", priv->daifmt);
dev_dbg(dev, "cpu : %s / %04x / %d\n",
- info->cpu_dai.name,
- info->cpu_dai.fmt,
- info->cpu_dai.sysclk);
+ dai_link->cpu_dai_name,
+ priv->cpu_dai.fmt,
+ priv->cpu_dai.sysclk);
dev_dbg(dev, "codec : %s / %04x / %d\n",
- info->codec_dai.name,
- info->codec_dai.fmt,
- info->codec_dai.sysclk);
+ dai_link->codec_dai_name,
+ priv->codec_dai.fmt,
+ priv->codec_dai.sysclk);
return 0;
}
static int asoc_simple_card_probe(struct platform_device *pdev)
{
- struct asoc_simple_card_info *cinfo;
+ struct simple_card_data *priv;
+ struct snd_soc_dai_link *dai_link;
struct device_node *np = pdev->dev.of_node;
- struct device_node *of_cpu, *of_codec, *of_platform;
struct device *dev = &pdev->dev;
int ret;
- cinfo = NULL;
- of_cpu = NULL;
- of_codec = NULL;
- of_platform = NULL;
-
- cinfo = devm_kzalloc(dev, sizeof(*cinfo), GFP_KERNEL);
- if (!cinfo)
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
return -ENOMEM;
+ /*
+ * init snd_soc_card
+ */
+ priv->snd_card.owner = THIS_MODULE;
+ priv->snd_card.dev = dev;
+ dai_link = &priv->snd_link;
+ priv->snd_card.dai_link = dai_link;
+ priv->snd_card.num_links = 1;
+
if (np && of_device_is_available(np)) {
- cinfo->snd_card.dev = dev;
- ret = asoc_simple_card_parse_of(np, cinfo, dev,
- &of_cpu,
- &of_codec,
- &of_platform);
+ ret = asoc_simple_card_parse_of(np, priv, dev);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(dev, "parse error %d\n", ret);
return ret;
}
} else {
- if (!dev->platform_data) {
+ struct asoc_simple_card_info *cinfo;
+
+ cinfo = dev->platform_data;
+ if (!cinfo) {
dev_err(dev, "no info for asoc-simple-card\n");
return -EINVAL;
}
- memcpy(cinfo, dev->platform_data, sizeof(*cinfo));
- cinfo->snd_card.dev = dev;
- }
+ if (!cinfo->name ||
+ !cinfo->card ||
+ !cinfo->codec_dai.name ||
+ !cinfo->codec ||
+ !cinfo->platform ||
+ !cinfo->cpu_dai.name) {
+ dev_err(dev, "insufficient asoc_simple_card_info settings\n");
+ return -EINVAL;
+ }
- if (!cinfo->name ||
- !cinfo->card ||
- !cinfo->codec_dai.name ||
- !(cinfo->codec || of_codec) ||
- !(cinfo->platform || of_platform) ||
- !(cinfo->cpu_dai.name || of_cpu)) {
- dev_err(dev, "insufficient asoc_simple_card_info settings\n");
- return -EINVAL;
+ priv->snd_card.name = cinfo->card;
+ dai_link->name = cinfo->name;
+ dai_link->stream_name = cinfo->name;
+ dai_link->platform_name = cinfo->platform;
+ dai_link->codec_name = cinfo->codec;
+ dai_link->cpu_dai_name = cinfo->cpu_dai.name;
+ dai_link->codec_dai_name = cinfo->codec_dai.name;
+ memcpy(&priv->cpu_dai, &cinfo->cpu_dai,
+ sizeof(priv->cpu_dai));
+ memcpy(&priv->codec_dai, &cinfo->codec_dai,
+ sizeof(priv->codec_dai));
}
/*
* init snd_soc_dai_link
*/
- cinfo->snd_link.name = cinfo->name;
- cinfo->snd_link.stream_name = cinfo->name;
- cinfo->snd_link.cpu_dai_name = cinfo->cpu_dai.name;
- cinfo->snd_link.platform_name = cinfo->platform;
- cinfo->snd_link.codec_name = cinfo->codec;
- cinfo->snd_link.codec_dai_name = cinfo->codec_dai.name;
- cinfo->snd_link.cpu_of_node = of_cpu;
- cinfo->snd_link.codec_of_node = of_codec;
- cinfo->snd_link.platform_of_node = of_platform;
- cinfo->snd_link.init = asoc_simple_card_dai_init;
-
- /*
- * init snd_soc_card
- */
- cinfo->snd_card.name = cinfo->card;
- cinfo->snd_card.owner = THIS_MODULE;
- cinfo->snd_card.dai_link = &cinfo->snd_link;
- cinfo->snd_card.num_links = 1;
+ dai_link->init = asoc_simple_card_dai_init;
- snd_soc_card_set_drvdata(&cinfo->snd_card, cinfo);
+ snd_soc_card_set_drvdata(&priv->snd_card, priv);
- return devm_snd_soc_register_card(&pdev->dev, &cinfo->snd_card);
+ return devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
}
static const struct of_device_id asoc_simple_of_match[] = {
projects / firefly-linux-kernel-4.4.55.git / commitdiff