mirror of
https://github.com/torvalds/linux
synced 2024-07-22 03:01:14 +00:00
ec6f32bc92
Move the initialization of the shared struct hda_component array into
hda_component_manager_bind().
The purpose of the manager bind() callback is to allow it to perform
initialization before binding in the component drivers. This is the
correct place to initialize the shared data.
The original implementation initialized the shared data in
hda_component_manager_init(). This is only done once during probe()
of the manager driver. So if the component binding was unbound and
then rebound, the shared data would not be re-initialized.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: fd895a74dc ("ALSA: hda: realtek: Move hda_component implementation to module")
Link: https://lore.kernel.org/r/20240508100347.47283-1-rf@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* HD audio Component Binding Interface
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*
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* Copyright (C) 2021 Cirrus Logic, Inc. and
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* Cirrus Logic International Semiconductor Ltd.
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*/
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#ifndef __HDA_COMPONENT_H__
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#define __HDA_COMPONENT_H__
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#include <linux/acpi.h>
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#include <linux/component.h>
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#include <sound/hda_codec.h>
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#define HDA_MAX_COMPONENTS 4
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#define HDA_MAX_NAME_SIZE 50
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struct hda_component {
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struct device *dev;
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char name[HDA_MAX_NAME_SIZE];
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struct hda_codec *codec;
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struct acpi_device *adev;
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bool acpi_notifications_supported;
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void (*acpi_notify)(acpi_handle handle, u32 event, struct device *dev);
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void (*pre_playback_hook)(struct device *dev, int action);
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void (*playback_hook)(struct device *dev, int action);
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void (*post_playback_hook)(struct device *dev, int action);
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};
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#ifdef CONFIG_ACPI
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void hda_component_acpi_device_notify(struct hda_component *comps, int num_comps,
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acpi_handle handle, u32 event, void *data);
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int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc,
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struct hda_component *comps, int num_comps,
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acpi_notify_handler handler, void *data);
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void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc,
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struct hda_component *comps,
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acpi_notify_handler handler);
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#else
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static inline void hda_component_acpi_device_notify(struct hda_component *comps,
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int num_comps,
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acpi_handle handle,
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u32 event,
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void *data)
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{
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}
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static inline int hda_component_manager_bind_acpi_notifications(struct hda_codec *cdc,
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struct hda_component *comps,
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int num_comps,
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acpi_notify_handler handler,
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void *data)
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{
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return 0;
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}
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static inline void hda_component_manager_unbind_acpi_notifications(struct hda_codec *cdc,
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struct hda_component *comps,
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acpi_notify_handler handler)
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{
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}
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#endif /* ifdef CONFIG_ACPI */
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void hda_component_manager_playback_hook(struct hda_component *comps, int num_comps,
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int action);
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int hda_component_manager_init(struct hda_codec *cdc,
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struct hda_component *comps, int count,
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const char *bus, const char *hid,
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const char *match_str,
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const struct component_master_ops *ops);
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void hda_component_manager_free(struct hda_codec *cdc,
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const struct component_master_ops *ops);
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int hda_component_manager_bind(struct hda_codec *cdc,
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struct hda_component *comps, int count);
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static inline void hda_component_manager_unbind(struct hda_codec *cdc,
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struct hda_component *comps)
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{
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component_unbind_all(hda_codec_dev(cdc), comps);
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}
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#endif /* ifndef __HDA_COMPONENT_H__ */
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