From 502629a75566b5cb409c118125d38102e5edc8f6 Mon Sep 17 00:00:00 2001 From: Stefan Binding Date: Thu, 21 Sep 2023 17:28:46 +0100 Subject: [PATCH] ALSA: hda: cs35l41: Add notification support into component binding 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 Link: https://lore.kernel.org/r/20230921162849.1988124-2-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_component.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/pci/hda/hda_component.h b/sound/pci/hda/hda_component.h index f170aec967c18..bbd6f0ed16c13 100644 --- a/sound/pci/hda/hda_component.h +++ b/sound/pci/hda/hda_component.h @@ -6,6 +6,7 @@ * Cirrus Logic International Semiconductor Ltd. */ +#include #include #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); -- 2.30.2