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ALSA: hda: cs35l41: Add notification support into component binding

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Some systems support a notification from ACPI, which can be used
for different things.

Only one handler can be registered for the acpi notification, but all
amps need to receive that notification, we can register a single handler
inside the component master, so that it can then notify through the
component framework.

This is required to support mute notifications from ACPI.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230921162849.1988124-2-sbinding@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Stefan Binding 2023-09-21 17:28:46 +01:00 committed by Takashi Iwai
parent 72f6a13022
commit 502629a755
1 changed files with 4 additions and 0 deletions
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4
sound/pci/hda/hda_component.h
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@ -6,6 +6,7 @@
* Cirrus Logic International Semiconductor Ltd.
*/
#include <linux/acpi.h>
#include <linux/component.h>
#define HDA_MAX_COMPONENTS 4
@ -15,6 +16,9 @@ struct hda_component {
struct device *dev;
char name[HDA_MAX_NAME_SIZE];
struct hda_codec *codec;
struct acpi_device *adev;
bool acpi_notifications_supported;
void (*acpi_notify)(acpi_handle handle, u32 event, struct device *dev);
void (*pre_playback_hook)(struct device *dev, int action);
void (*playback_hook)(struct device *dev, int action);
void (*post_playback_hook)(struct device *dev, int action);