};
MODULE_DEVICE_TABLE(of, rsrc_card_of_match);
+#define DAI_NAME_NUM 32
struct rsrc_card_dai {
unsigned int fmt;
unsigned int sysclk;
struct clk *clk;
+ char dai_name[DAI_NAME_NUM];
};
#define IDX_CPU 0
#define IDX_CODEC 1
-#define DAI_NAME_NUM 32
struct rsrc_card_priv {
struct snd_soc_card snd_card;
- struct rsrc_card_dai_props {
- struct rsrc_card_dai cpu_dai;
- struct rsrc_card_dai codec_dai;
- char dai_name[DAI_NAME_NUM];
- } *dai_props;
struct snd_soc_codec_conf codec_conf;
+ struct rsrc_card_dai *dai_props;
struct snd_soc_dai_link *dai_link;
int dai_num;
u32 convert_rate;
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
- struct rsrc_card_dai_props *dai_props =
+ struct rsrc_card_dai *dai_props =
rsrc_priv_to_props(priv, rtd - rtd->card->rtd);
int ret;
- ret = clk_prepare_enable(dai_props->cpu_dai.clk);
- if (ret)
- return ret;
-
- ret = clk_prepare_enable(dai_props->codec_dai.clk);
- if (ret)
- clk_disable_unprepare(dai_props->cpu_dai.clk);
- return ret;
+ return clk_prepare_enable(dai_props->clk);
}
static void rsrc_card_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
- struct rsrc_card_dai_props *dai_props =
+ struct rsrc_card_dai *dai_props =
rsrc_priv_to_props(priv, rtd - rtd->card->rtd);
- clk_disable_unprepare(dai_props->cpu_dai.clk);
-
- clk_disable_unprepare(dai_props->codec_dai.clk);
+ clk_disable_unprepare(dai_props->clk);
}
static struct snd_soc_ops rsrc_card_ops = {
.shutdown = rsrc_card_shutdown,
};
-static int __rsrc_card_dai_init(struct snd_soc_dai *dai,
- struct rsrc_card_dai *set)
+static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd)
{
+ struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_dai *dai;
+ struct snd_soc_dai_link *dai_link;
+ struct rsrc_card_dai *dai_props;
+ int num = rtd - rtd->card->rtd;
int ret;
- if (set->fmt) {
- ret = snd_soc_dai_set_fmt(dai, set->fmt);
+ dai_link = rsrc_priv_to_link(priv, num);
+ dai_props = rsrc_priv_to_props(priv, num);
+ dai = dai_link->dynamic ?
+ rtd->cpu_dai :
+ rtd->codec_dai;
+
+ if (dai_props->fmt) {
+ ret = snd_soc_dai_set_fmt(dai, dai_props->fmt);
if (ret && ret != -ENOTSUPP) {
dev_err(dai->dev, "set_fmt error\n");
goto err;
}
}
- if (set->sysclk) {
- ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
+ if (dai_props->sysclk) {
+ ret = snd_soc_dai_set_sysclk(dai, 0, dai_props->sysclk, 0);
if (ret && ret != -ENOTSUPP) {
dev_err(dai->dev, "set_sysclk error\n");
goto err;
return ret;
}
-static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
- struct snd_soc_dai *codec = rtd->codec_dai;
- struct snd_soc_dai *cpu = rtd->cpu_dai;
- struct rsrc_card_dai_props *dai_props;
- int num, ret;
-
- num = rtd - rtd->card->rtd;
- dai_props = &priv->dai_props[num];
- ret = __rsrc_card_dai_init(codec, &dai_props->codec_dai);
- if (ret < 0)
- return ret;
-
- ret = __rsrc_card_dai_init(cpu, &dai_props->cpu_dai);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
static int rsrc_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
}
static int rsrc_card_parse_daifmt(struct device_node *node,
+ struct device_node *np,
struct rsrc_card_priv *priv,
- struct device_node *codec,
- int idx)
+ int idx, bool is_fe)
{
+ struct rsrc_card_dai *dai_props = rsrc_priv_to_props(priv, idx);
struct device_node *bitclkmaster = NULL;
struct device_node *framemaster = NULL;
- struct rsrc_card_dai_props *dai_props = rsrc_priv_to_props(priv, idx);
- struct rsrc_card_dai *cpu_dai = &dai_props->cpu_dai;
- struct rsrc_card_dai *codec_dai = &dai_props->codec_dai;
+ struct device_node *codec = is_fe ? NULL : np;
unsigned int daifmt;
daifmt = snd_soc_of_parse_daifmt(node, NULL,
daifmt |= (codec == framemaster) ?
SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
- cpu_dai->fmt = daifmt;
- codec_dai->fmt = daifmt;
+ dai_props->fmt = daifmt;
of_node_put(bitclkmaster);
of_node_put(framemaster);
return 0;
}
-static int
-rsrc_card_sub_parse_of(struct rsrc_card_priv *priv,
- struct device_node *np,
- struct rsrc_card_dai *dai,
- struct snd_soc_dai_link *dai_link,
- int *args_count)
+static int rsrc_card_parse_links(struct device_node *np,
+ struct rsrc_card_priv *priv,
+ int idx, bool is_fe)
{
- struct device *dev = rsrc_priv_to_dev(priv);
- const struct rsrc_card_of_data *of_data = rsrc_dev_to_of_data(dev);
+ struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
+ struct rsrc_card_dai *dai_props = rsrc_priv_to_props(priv, idx);
struct of_phandle_args args;
- struct device_node **p_node;
- struct clk *clk;
- const char **dai_name;
- const char **name;
- u32 val;
int ret;
- if (args_count) {
- p_node = &dai_link->cpu_of_node;
- dai_name = &dai_link->cpu_dai_name;
- name = &dai_link->cpu_name;
- } else {
- p_node = &dai_link->codec_of_node;
- dai_name = &dai_link->codec_dai_name;
- name = &dai_link->codec_name;
- }
-
- if (!np) {
- /* use snd-soc-dummy */
- *p_node = NULL;
- *dai_name = "snd-soc-dummy-dai";
- *name = "snd-soc-dummy";
- return 0;
- }
-
/*
* Get node via "sound-dai = <&phandle port>"
* it will be used as xxx_of_node on soc_bind_dai_link()
if (ret)
return ret;
- *p_node = args.np;
+ if (is_fe) {
+ /* 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;
+ dai_link->cpu_of_node = args.np;
+ snd_soc_of_get_dai_name(np, &dai_link->cpu_dai_name);
+
+ /* set dai_name */
+ snprintf(dai_props->dai_name, DAI_NAME_NUM, "fe.%s",
+ dai_link->cpu_dai_name);
+
+ /*
+ * 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 (!args.args_count)
+ dai_link->cpu_dai_name = NULL;
+ } else {
+ struct device *dev = rsrc_priv_to_dev(priv);
+ const struct rsrc_card_of_data *of_data;
- /* Get dai->name */
- ret = snd_soc_of_get_dai_name(np, dai_name);
- if (ret < 0)
- return ret;
+ of_data = rsrc_dev_to_of_data(dev);
- /*
- * FIXME
- *
- * rsrc assumes DPCM playback/capture
- */
- dai_link->dpcm_playback = 1;
- dai_link->dpcm_capture = 1;
+ /* 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";
- if (args_count) {
- *args_count = args.args_count;
- dai_link->dynamic = 1;
- dai_link->dpcm_merged_format = 1;
- } else {
- dai_link->no_pcm = 1;
- priv->codec_conf.of_node = (*p_node);
- priv->codec_conf.name_prefix = of_data->prefix;
+ /* BE settings */
+ dai_link->no_pcm = 1;
+ dai_link->be_hw_params_fixup = rsrc_card_be_hw_params_fixup;
+ dai_link->codec_of_node = args.np;
+ snd_soc_of_get_dai_name(np, &dai_link->codec_dai_name);
+
+ /* additional name prefix */
+ priv->codec_conf.of_node = dai_link->codec_of_node;
+ priv->codec_conf.name_prefix = of_data->prefix;
+
+ /* set dai_name */
+ snprintf(dai_props->dai_name, DAI_NAME_NUM, "be.%s",
+ dai_link->codec_dai_name);
}
+ /* Simple Card assumes platform == cpu */
+ dai_link->platform_of_node = dai_link->cpu_of_node;
+ dai_link->dpcm_playback = 1;
+ dai_link->dpcm_capture = 1;
+ dai_link->name = dai_props->dai_name;
+ dai_link->stream_name = dai_props->dai_name;
+ dai_link->ops = &rsrc_card_ops;
+ dai_link->init = rsrc_card_dai_init;
+
+ return 0;
+}
+
+static int rsrc_card_parse_clk(struct device_node *np,
+ struct rsrc_card_priv *priv,
+ int idx, bool is_fe)
+{
+ struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
+ struct rsrc_card_dai *dai_props = rsrc_priv_to_props(priv, idx);
+ struct clk *clk;
+ struct device_node *of_np = is_fe ? dai_link->cpu_of_node :
+ dai_link->codec_of_node;
+ u32 val;
+
/*
* Parse dai->sysclk come from "clocks = <&xxx>"
* (if system has common clock)
if (IS_ERR(clk))
return PTR_ERR(clk);
- dai->sysclk = clk_get_rate(clk);
- dai->clk = clk;
+ dai_props->sysclk = clk_get_rate(clk);
+ dai_props->clk = clk;
} else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
- dai->sysclk = val;
+ dai_props->sysclk = val;
} else {
- clk = of_clk_get(args.np, 0);
+ clk = of_clk_get(of_np, 0);
if (!IS_ERR(clk))
- dai->sysclk = clk_get_rate(clk);
+ dai_props->sysclk = clk_get_rate(clk);
}
return 0;
}
static int rsrc_card_dai_link_of(struct device_node *node,
+ struct device_node *np,
struct rsrc_card_priv *priv,
int idx)
{
struct device *dev = rsrc_priv_to_dev(priv);
- struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
- struct rsrc_card_dai_props *dai_props = rsrc_priv_to_props(priv, idx);
- struct device_node *cpu = NULL;
- struct device_node *codec = NULL;
- char *name = dai_props->dai_name;
- char prop[128];
- int ret, cpu_args;
-
- cpu = of_get_child_by_name(node, "cpu");
- codec = of_get_child_by_name(node, "codec");
-
- if (!cpu || !codec) {
- ret = -EINVAL;
- dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
- goto dai_link_of_err;
- }
+ struct rsrc_card_dai *dai_props = rsrc_priv_to_props(priv, idx);
+ bool is_fe = false;
+ int ret;
- ret = rsrc_card_parse_daifmt(node, priv, codec, idx);
- if (ret < 0)
- goto dai_link_of_err;
+ if (0 == strcmp(np->name, "cpu"))
+ is_fe = true;
- ret = rsrc_card_sub_parse_of(priv, (idx == IDX_CPU) ? cpu : NULL,
- &dai_props->cpu_dai,
- dai_link,
- &cpu_args);
+ ret = rsrc_card_parse_daifmt(node, np, priv, idx, is_fe);
if (ret < 0)
- goto dai_link_of_err;
+ return ret;
- ret = rsrc_card_sub_parse_of(priv, (idx == IDX_CODEC) ? codec : NULL,
- &dai_props->codec_dai,
- dai_link,
- NULL);
+ ret = rsrc_card_parse_links(np, priv, idx, is_fe);
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;
- }
-
- /* Simple Card assumes platform == cpu */
- dai_link->platform_of_node = dai_link->cpu_of_node;
-
- snprintf(name, DAI_NAME_NUM, "%s.%s",
- dai_link->dynamic ? "fe" : "be",
- dai_link->dynamic ? dai_link->cpu_dai_name :
- dai_link->codec_dai_name);
- dai_link->name = dai_link->stream_name = name;
- dai_link->ops = &rsrc_card_ops;
- dai_link->init = rsrc_card_dai_init;
-
- if (idx == IDX_CODEC)
- dai_link->be_hw_params_fixup = rsrc_card_be_hw_params_fixup;
-
- 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);
+ return ret;
- /*
- * 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;
+ ret = rsrc_card_parse_clk(np, priv, idx, is_fe);
+ if (ret < 0)
+ return ret;
-dai_link_of_err:
- of_node_put(cpu);
- of_node_put(codec);
+ dev_dbg(dev, "\t%s / %04x / %d\n",
+ dai_props->dai_name,
+ dai_props->fmt,
+ dai_props->sysclk);
return ret;
}
struct device *dev)
{
const struct rsrc_card_of_data *of_data = rsrc_dev_to_of_data(dev);
- struct rsrc_card_dai_props *props;
+ struct rsrc_card_dai *props;
struct snd_soc_dai_link *links;
-
+ struct device_node *np;
int ret;
int i, num;
priv->dai_link = links;
priv->dai_num = num;
- /* Parse the card name from DT */
- snd_soc_of_parse_card_name(&priv->snd_card, "card-name");
-
/* Init snd_soc_card */
priv->snd_card.owner = THIS_MODULE;
priv->snd_card.dev = dev;
priv->snd_card.of_dapm_routes = of_data->routes;
priv->snd_card.num_of_dapm_routes = of_data->num_routes;
+ /* Parse the card name from DT */
+ snd_soc_of_parse_card_name(&priv->snd_card, "card-name");
+
/* sampling rate convert */
of_property_read_u32(node, "convert-rate", &priv->convert_rate);
priv->snd_card.name ? priv->snd_card.name : "",
priv->convert_rate);
- /* FE/BE */
- for (i = 0; i < num; i++) {
- ret = rsrc_card_dai_link_of(node, priv, i);
+ i = 0;
+ for_each_child_of_node(node, np) {
+ ret = rsrc_card_dai_link_of(node, np, priv, i);
if (ret < 0)
return ret;
+ i++;
}
if (!priv->snd_card.name)
projects / linux-drm-fsl-dcu.git / commitdiff