Merge tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-block.git] / sound / soc / soc-core.c
index 11cfe42fe594b77fb83a63cafe448ccdf039a20e..88efc84f3e7b4aa0d3a68e5d2d409aaca6358c45 100644 (file)
@@ -213,7 +213,7 @@ static umode_t soc_dev_attr_is_visible(struct kobject *kobj,
 
        if (attr == &dev_attr_pmdown_time.attr)
                return attr->mode; /* always visible */
-       return rtd->codec ? attr->mode : 0; /* enabled only with codec */
+       return rtd->num_codecs ? attr->mode : 0; /* enabled only with codec */
 }
 
 static const struct attribute_group soc_dapm_dev_group = {
@@ -349,120 +349,84 @@ static void soc_init_codec_debugfs(struct snd_soc_component *component)
                        "ASoC: Failed to create codec register debugfs file\n");
 }
 
-static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
-                                   size_t count, loff_t *ppos)
+static int codec_list_seq_show(struct seq_file *m, void *v)
 {
-       char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
-       ssize_t len, ret = 0;
        struct snd_soc_codec *codec;
 
-       if (!buf)
-               return -ENOMEM;
-
        mutex_lock(&client_mutex);
 
-       list_for_each_entry(codec, &codec_list, list) {
-               len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
-                              codec->component.name);
-               if (len >= 0)
-                       ret += len;
-               if (ret > PAGE_SIZE) {
-                       ret = PAGE_SIZE;
-                       break;
-               }
-       }
+       list_for_each_entry(codec, &codec_list, list)
+               seq_printf(m, "%s\n", codec->component.name);
 
        mutex_unlock(&client_mutex);
 
-       if (ret >= 0)
-               ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
-
-       kfree(buf);
+       return 0;
+}
 
-       return ret;
+static int codec_list_seq_open(struct inode *inode, struct file *file)
+{
+       return single_open(file, codec_list_seq_show, NULL);
 }
 
 static const struct file_operations codec_list_fops = {
-       .read = codec_list_read_file,
-       .llseek = default_llseek,/* read accesses f_pos */
+       .open = codec_list_seq_open,
+       .read = seq_read,
+       .llseek = seq_lseek,
+       .release = single_release,
 };
 
-static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
-                                 size_t count, loff_t *ppos)
+static int dai_list_seq_show(struct seq_file *m, void *v)
 {
-       char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
-       ssize_t len, ret = 0;
        struct snd_soc_component *component;
        struct snd_soc_dai *dai;
 
-       if (!buf)
-               return -ENOMEM;
-
        mutex_lock(&client_mutex);
 
-       list_for_each_entry(component, &component_list, list) {
-               list_for_each_entry(dai, &component->dai_list, list) {
-                       len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
-                               dai->name);
-                       if (len >= 0)
-                               ret += len;
-                       if (ret > PAGE_SIZE) {
-                               ret = PAGE_SIZE;
-                               break;
-                       }
-               }
-       }
+       list_for_each_entry(component, &component_list, list)
+               list_for_each_entry(dai, &component->dai_list, list)
+                       seq_printf(m, "%s\n", dai->name);
 
        mutex_unlock(&client_mutex);
 
-       ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
-
-       kfree(buf);
+       return 0;
+}
 
-       return ret;
+static int dai_list_seq_open(struct inode *inode, struct file *file)
+{
+       return single_open(file, dai_list_seq_show, NULL);
 }
 
 static const struct file_operations dai_list_fops = {
-       .read = dai_list_read_file,
-       .llseek = default_llseek,/* read accesses f_pos */
+       .open = dai_list_seq_open,
+       .read = seq_read,
+       .llseek = seq_lseek,
+       .release = single_release,
 };
 
-static ssize_t platform_list_read_file(struct file *file,
-                                      char __user *user_buf,
-                                      size_t count, loff_t *ppos)
+static int platform_list_seq_show(struct seq_file *m, void *v)
 {
-       char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
-       ssize_t len, ret = 0;
        struct snd_soc_platform *platform;
 
-       if (!buf)
-               return -ENOMEM;
-
        mutex_lock(&client_mutex);
 
-       list_for_each_entry(platform, &platform_list, list) {
-               len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
-                              platform->component.name);
-               if (len >= 0)
-                       ret += len;
-               if (ret > PAGE_SIZE) {
-                       ret = PAGE_SIZE;
-                       break;
-               }
-       }
+       list_for_each_entry(platform, &platform_list, list)
+               seq_printf(m, "%s\n", platform->component.name);
 
        mutex_unlock(&client_mutex);
 
-       ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
-
-       kfree(buf);
+       return 0;
+}
 
-       return ret;
+static int platform_list_seq_open(struct inode *inode, struct file *file)
+{
+       return single_open(file, platform_list_seq_show, NULL);
 }
 
 static const struct file_operations platform_list_fops = {
-       .read = platform_list_read_file,
-       .llseek = default_llseek,/* read accesses f_pos */
+       .open = platform_list_seq_open,
+       .read = seq_read,
+       .llseek = seq_lseek,
+       .release = single_release,
 };
 
 static void soc_init_card_debugfs(struct snd_soc_card *card)
@@ -491,7 +455,6 @@ static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
        debugfs_remove_recursive(card->debugfs_card_root);
 }
 
-
 static void snd_soc_debugfs_init(void)
 {
        snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
@@ -598,6 +561,7 @@ struct snd_soc_component *snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd,
 
        return NULL;
 }
+EXPORT_SYMBOL_GPL(snd_soc_rtdcom_lookup);
 
 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
                const char *dai_link, int stream)
@@ -1392,6 +1356,17 @@ static int soc_init_dai_link(struct snd_soc_card *card,
        return 0;
 }
 
+void snd_soc_disconnect_sync(struct device *dev)
+{
+       struct snd_soc_component *component = snd_soc_lookup_component(dev, NULL);
+
+       if (!component || !component->card)
+               return;
+
+       snd_card_disconnect_sync(component->card->snd_card);
+}
+EXPORT_SYMBOL_GPL(snd_soc_disconnect_sync);
+
 /**
  * snd_soc_add_dai_link - Add a DAI link dynamically
  * @card: The ASoC card to which the DAI link is added
@@ -1945,7 +1920,9 @@ int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd,
        }
 
        /* Flip the polarity for the "CPU" end of a CODEC<->CODEC link */
-       if (cpu_dai->codec) {
+       /* the component which has non_legacy_dai_naming is Codec */
+       if (cpu_dai->codec ||
+           cpu_dai->component->driver->non_legacy_dai_naming) {
                unsigned int inv_dai_fmt;
 
                inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK;
@@ -3149,7 +3126,7 @@ static struct snd_soc_dai *soc_add_dai(struct snd_soc_component *component,
        if (!dai->driver->ops)
                dai->driver->ops = &null_dai_ops;
 
-       list_add(&dai->list, &component->dai_list);
+       list_add_tail(&dai->list, &component->dai_list);
        component->num_dai++;
 
        dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name);
@@ -3176,8 +3153,6 @@ static int snd_soc_register_dais(struct snd_soc_component *component,
 
        dev_dbg(dev, "ASoC: dai register %s #%zu\n", dev_name(dev), count);
 
-       component->dai_drv = dai_drv;
-
        for (i = 0; i < count; i++) {
 
                dai = soc_add_dai(component, dai_drv + i,
@@ -4354,6 +4329,7 @@ int snd_soc_get_dai_name(struct of_phandle_args *args,
                                                             args,
                                                             dai_name);
                } else {
+                       struct snd_soc_dai *dai;
                        int id = -1;
 
                        switch (args->args_count) {
@@ -4375,7 +4351,14 @@ int snd_soc_get_dai_name(struct of_phandle_args *args,
 
                        ret = 0;
 
-                       *dai_name = pos->dai_drv[id].name;
+                       /* find target DAI */
+                       list_for_each_entry(dai, &pos->dai_list, list) {
+                               if (id == 0)
+                                       break;
+                               id--;
+                       }
+
+                       *dai_name = dai->driver->name;
                        if (!*dai_name)
                                *dai_name = pos->name;
                }