[PATCH 6.0 0998/1073] ALSA: hda: add snd_hdac_stop_streams() helper

Greg Kroah-Hartman
2022-12-28T16:46:56Z

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ 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>
---
include/sound/hdaudio.h | 1 +
sound/hda/hdac_stream.c | 17 ++++++++++++++---
sound/pci/hda/hda_controller.c | 4 +---
3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 797bf67a164d..ceaa7b7cfdc3 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -562,6 +562,7 @@ 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 f3582012d22f..eea22cf72aef 100644
--- a/sound/hda/hdac_stream.c
+++ b/sound/hda/hdac_stream.c
@@ -142,17 +142,28 @@ 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 75dcb14ff20a..0ff286b7b66b 100644
--- 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);

--
2.35.1