ALSA: hda: add snd_hdac_stop_streams() helper

[ Upstream commit 24ad3835a6db4f8857975effa6bf47730371a5ff ]

Minor code reuse, no functionality change.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20220919121041.43463-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Stable-dep-of: 171107237246 ("ASoC: Intel: Skylake: Fix driver hang during shutdown")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 6a90ce4..658fccd 100644 (file)
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -558,6 +558,7 @@ int snd_hdac_stream_set_params(struct hdac_stream *azx_dev,
 void snd_hdac_stream_start(struct hdac_stream *azx_dev, bool fresh_start);
 void snd_hdac_stream_clear(struct hdac_stream *azx_dev);
 void snd_hdac_stream_stop(struct hdac_stream *azx_dev);
+void snd_hdac_stop_streams(struct hdac_bus *bus);
 void snd_hdac_stop_streams_and_chip(struct hdac_bus *bus);
 void snd_hdac_stream_reset(struct hdac_stream *azx_dev);
 void snd_hdac_stream_sync_trigger(struct hdac_stream *azx_dev, bool set,

diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c
index f358201..eea22cf 100644 (file)
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -143,16 +143,27 @@ void snd_hdac_stream_stop(struct hdac_stream *azx_dev)
 EXPORT_SYMBOL_GPL(snd_hdac_stream_stop);
 
 /**
+ * snd_hdac_stop_streams - stop all streams
+ * @bus: HD-audio core bus
+ */
+void snd_hdac_stop_streams(struct hdac_bus *bus)
+{
+       struct hdac_stream *stream;
+
+       list_for_each_entry(stream, &bus->stream_list, list)
+               snd_hdac_stream_stop(stream);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_stop_streams);
+
+/**
  * snd_hdac_stop_streams_and_chip - stop all streams and chip if running
  * @bus: HD-audio core bus
  */
 void snd_hdac_stop_streams_and_chip(struct hdac_bus *bus)
 {
-       struct hdac_stream *stream;
 
        if (bus->chip_init) {
-               list_for_each_entry(stream, &bus->stream_list, list)
-                       snd_hdac_stream_stop(stream);
+               snd_hdac_stop_streams(bus);
                snd_hdac_bus_stop_chip(bus);
        }
 }

diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index 75dcb14..0ff286b 100644 (file)
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -1033,10 +1033,8 @@ EXPORT_SYMBOL_GPL(azx_init_chip);
 void azx_stop_all_streams(struct azx *chip)
 {
        struct hdac_bus *bus = azx_bus(chip);
-       struct hdac_stream *s;
 
-       list_for_each_entry(s, &bus->stream_list, list)
-               snd_hdac_stream_stop(s);
+       snd_hdac_stop_streams(bus);
 }
 EXPORT_SYMBOL_GPL(azx_stop_all_streams);