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-rw-r--r--include/sound/soc.h79
1 files changed, 78 insertions, 1 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 8ec1de856ee7..eb7db605955b 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -802,6 +802,9 @@ struct snd_soc_component_driver {
int probe_order;
int remove_order;
+ /* signal if the module handling the component cannot be removed */
+ unsigned int ignore_module_refcount:1;
+
/* bits */
unsigned int idle_bias_on:1;
unsigned int suspend_bias_off:1;
@@ -891,6 +894,18 @@ struct snd_soc_dai_link {
/* config - must be set by machine driver */
const char *name; /* Codec name */
const char *stream_name; /* Stream name */
+
+ /*
+ * cpu_name
+ * cpu_of_node
+ * cpu_dai_name
+ *
+ * These are legacy style, and will be replaced to
+ * modern style (= snd_soc_dai_link_component) in the future,
+ * but, not yet supported so far.
+ * If modern style was supported for CPU, all driver will switch
+ * to use it, and, legacy style code will be removed from ALSA SoC.
+ */
/*
* You MAY specify the link's CPU-side device, either by device name,
* or by DT/OF node, but not both. If this information is omitted,
@@ -906,6 +921,19 @@ struct snd_soc_dai_link {
* only, which only works well when that device exposes a single DAI.
*/
const char *cpu_dai_name;
+
+ /*
+ * codec_name
+ * codec_of_node
+ * codec_dai_name
+ *
+ * These are legacy style, it will be converted to modern style
+ * (= snd_soc_dai_link_component) automatically in soc-core
+ * if driver is using legacy style.
+ * Driver shouldn't use both legacy and modern style in the same time.
+ * If modern style was supported for CPU, all driver will switch
+ * to use it, and, legacy style code will be removed from ALSA SoC.
+ */
/*
* You MUST specify the link's codec, either by device name, or by
* DT/OF node, but not both.
@@ -919,13 +947,25 @@ struct snd_soc_dai_link {
unsigned int num_codecs;
/*
+ * platform_name
+ * platform_of_node
+ *
+ * These are legacy style, it will be converted to modern style
+ * (= snd_soc_dai_link_component) automatically in soc-core
+ * if driver is using legacy style.
+ * Driver shouldn't use both legacy and modern style in the same time.
+ * If modern style was supported for CPU, all driver will switch
+ * to use it, and, legacy style code will be removed from ALSA SoC.
+ */
+ /*
* You MAY specify the link's platform/PCM/DMA driver, either by
* device name, or by DT/OF node, but not both. Some forms of link
* do not need a platform.
*/
const char *platform_name;
struct device_node *platform_of_node;
- struct snd_soc_dai_link_component *platform;
+ struct snd_soc_dai_link_component *platforms;
+ unsigned int num_platforms;
int id; /* optional ID for machine driver link identification */
@@ -985,6 +1025,12 @@ struct snd_soc_dai_link {
/* Do not create a PCM for this DAI link (Backend link) */
unsigned int ignore:1;
+ /*
+ * This driver uses legacy platform naming. Set by the core, machine
+ * drivers should not modify this value.
+ */
+ unsigned int legacy_platform:1;
+
struct list_head list; /* DAI link list of the soc card */
struct snd_soc_dobj dobj; /* For topology */
};
@@ -1537,6 +1583,37 @@ struct snd_soc_dai *snd_soc_card_get_codec_dai(struct snd_soc_card *card,
return NULL;
}
+static inline
+int snd_soc_fixup_dai_links_platform_name(struct snd_soc_card *card,
+ const char *platform_name)
+{
+ struct snd_soc_dai_link *dai_link;
+ const char *name;
+ int i;
+
+ if (!platform_name) /* nothing to do */
+ return 0;
+
+ /* set platform name for each dailink */
+ for_each_card_prelinks(card, i, dai_link) {
+ name = devm_kstrdup(card->dev, platform_name, GFP_KERNEL);
+ if (!name)
+ return -ENOMEM;
+
+ if (dai_link->platforms)
+ /* only single platform is supported for now */
+ dai_link->platforms->name = name;
+ else
+ /*
+ * legacy mode, this case will be removed when all
+ * derivers are switched to modern style dai_link.
+ */
+ dai_link->platform_name = name;
+ }
+
+ return 0;
+}
+
#ifdef CONFIG_DEBUG_FS
extern struct dentry *snd_soc_debugfs_root;
#endif