}
EXPORT_SYMBOL_GPL(snd_hdac_refresh_widgets);
+/**
+ * snd_hdac_refresh_widget_sysfs - Reset the codec widgets and reinit the
+ * codec sysfs
+ * @codec: the codec object
+ *
+ * first we need to remove sysfs, then refresh widgets and lastly
+ * recreate it
+ */
+int snd_hdac_refresh_widget_sysfs(struct hdac_device *codec)
+{
+ int ret;
+
+ if (device_is_registered(&codec->dev))
+ hda_widget_sysfs_exit(codec);
+ ret = snd_hdac_refresh_widgets(codec);
+ if (ret) {
+ dev_err(&codec->dev, "failed to refresh widget: %d\n", ret);
+ return ret;
+ }
+ if (device_is_registered(&codec->dev)) {
+ ret = hda_widget_sysfs_init(codec);
+ if (ret) {
+ dev_err(&codec->dev, "failed to init sysfs: %d\n", ret);
+ return ret;
+ }
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_refresh_widget_sysfs);
+
/* return CONNLIST_LEN parameter of the given widget */
static unsigned int get_num_conns(struct hdac_device *codec, hda_nid_t nid)
{
* This function calls the runtime PM helper to power up the given codec.
* Unlike snd_hdac_power_up_pm(), you should call this only for the code
* path that isn't included in PM path. Otherwise it gets stuck.
+ *
+ * Returns zero if successful, or a negative error code.
*/
-void snd_hdac_power_up(struct hdac_device *codec)
+int snd_hdac_power_up(struct hdac_device *codec)
{
- pm_runtime_get_sync(&codec->dev);
+ return pm_runtime_get_sync(&codec->dev);
}
EXPORT_SYMBOL_GPL(snd_hdac_power_up);
/**
* snd_hdac_power_down - power down the codec
* @codec: the codec object
+ *
+ * Returns zero if successful, or a negative error code.
*/
-void snd_hdac_power_down(struct hdac_device *codec)
+int snd_hdac_power_down(struct hdac_device *codec)
{
struct device *dev = &codec->dev;
pm_runtime_mark_last_busy(dev);
- pm_runtime_put_autosuspend(dev);
+ return pm_runtime_put_autosuspend(dev);
}
EXPORT_SYMBOL_GPL(snd_hdac_power_down);
* which may be called by PM suspend/resume again. OTOH, if a power-up
* call must wake up the sleeper (e.g. in a kctl callback), use
* snd_hdac_power_up() instead.
+ *
+ * Returns zero if successful, or a negative error code.
*/
-void snd_hdac_power_up_pm(struct hdac_device *codec)
+int snd_hdac_power_up_pm(struct hdac_device *codec)
{
if (!atomic_inc_not_zero(&codec->in_pm))
- snd_hdac_power_up(codec);
+ return snd_hdac_power_up(codec);
+ return 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_power_up_pm);
*
* Like snd_hdac_power_up_pm(), this function is used in a recursive
* code path like init code which may be called by PM suspend/resume again.
+ *
+ * Returns zero if successful, or a negative error code.
*/
-void snd_hdac_power_down_pm(struct hdac_device *codec)
+int snd_hdac_power_down_pm(struct hdac_device *codec)
{
if (atomic_dec_if_positive(&codec->in_pm) < 0)
- snd_hdac_power_down(codec);
+ return snd_hdac_power_down(codec);
+ return 0;
}
EXPORT_SYMBOL_GPL(snd_hdac_power_down_pm);
#endif