diff options
| -rw-r--r-- | include/sound/hdaudio.h | 1 | ||||
| -rw-r--r-- | sound/hda/hdac_device.c | 28 |
2 files changed, 29 insertions, 0 deletions
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h index 288c7fa509d8..23a44c39c51c 100644 --- a/include/sound/hdaudio.h +++ b/include/sound/hdaudio.h @@ -119,6 +119,7 @@ int snd_hdac_device_register(struct hdac_device *codec); void snd_hdac_device_unregister(struct hdac_device *codec); int snd_hdac_refresh_widgets(struct hdac_device *codec); +int snd_hdac_refresh_widget_sysfs(struct hdac_device *codec); unsigned int snd_hdac_make_cmd(struct hdac_device *codec, hda_nid_t nid, unsigned int verb, unsigned int parm); diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c index df7039ebe1fa..aa6d6cec2380 100644 --- a/sound/hda/hdac_device.c +++ b/sound/hda/hdac_device.c @@ -372,6 +372,34 @@ int snd_hdac_refresh_widgets(struct hdac_device *codec) } 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; + + 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; + } + 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) { |