Merge branch 'topic/hda-pm-refactor' into for-next (c7072f5f) · Commits · EulixOS / Software / Kernel

include/sound/hda_codec.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -236,6 +236,7 @@ struct hda_codec {
		/* misc flags */
		unsigned int in_freeing:1; /* being released */
		unsigned int registered:1; /* codec was registered */
		unsigned int display_power_control:1; /* needs display power */
		unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
		* status change
		* (e.g. Realtek codecs)

include/sound/hda_component.h

+8 −3

Original line number	Diff line number	Diff line
		@@ -5,10 +5,15 @@
		#define __SOUND_HDA_COMPONENT_H

		#include <drm/drm_audio_component.h>
		#include <sound/hdaudio.h>

		/* virtual idx for controller */
		#define HDA_CODEC_IDX_CONTROLLER HDA_MAX_CODECS

		#ifdef CONFIG_SND_HDA_COMPONENT
		int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
		int snd_hdac_display_power(struct hdac_bus *bus, bool enable);
		void snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx,
		bool enable);
		int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
		int dev_id, int rate);
		int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
		@@ -25,9 +30,9 @@ static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
		{
		return 0;
		}
		static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
		static inline void snd_hdac_display_power(struct hdac_bus *bus,
		unsigned int idx, bool enable)
		{
		return 0;
		}
		static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
		hda_nid_t nid, int dev_id, int rate)

include/sound/hdaudio.h

+2 −5

Original line number	Diff line number	Diff line
		@@ -79,7 +79,6 @@ struct hdac_device {

		/* misc flags */
		atomic_t in_pm; /* suspend/resume being performed */
		bool link_power_control:1;

		/* sysfs */
		struct hdac_widget_tree *widgets;
		@@ -237,8 +236,6 @@ struct hdac_bus_ops {
		/* get a response from the last command */
		int (get_response)(struct hdac_bus bus, unsigned int addr,
		unsigned int *res);
		/* control the link power */
		int (link_power)(struct hdac_bus bus, bool enable);
		};

		/*
		@@ -363,7 +360,8 @@ struct hdac_bus {

		/* DRM component interface */
		struct drm_audio_component *audio_component;
		int drm_power_refcount;
		long display_power_status;
		bool display_power_active;

		/* parameters required for enhanced capabilities */
		int num_streams;
		@@ -404,7 +402,6 @@ int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val);
		int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr,
		unsigned int *res);
		int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus);
		int snd_hdac_link_power(struct hdac_device *codec, bool enable);

		bool snd_hdac_bus_init_chip(struct hdac_bus *bus, bool full_reset);
		void snd_hdac_bus_stop_chip(struct hdac_bus *bus);

sound/hda/hdac_component.c

+22 −17

Original line number	Diff line number	Diff line
		@@ -54,41 +54,44 @@ EXPORT_SYMBOL_GPL(snd_hdac_set_codec_wakeup);
		/**
		* snd_hdac_display_power - Power up / down the power refcount
		* @bus: HDA core bus
		* @idx: HDA codec address, pass HDA_CODEC_IDX_CONTROLLER for controller
		* @enable: power up or down
		*
		* This function is supposed to be used only by a HD-audio controller
		* driver that needs the interaction with graphics driver.
		* This function is used by either HD-audio controller or codec driver that
		* needs the interaction with graphics driver.
		*
		* This function manages a refcount and calls the get_power() and
		* This function updates the power status, and calls the get_power() and
		* put_power() ops accordingly, toggling the codec wakeup, too.
		*
		* Returns zero for success or a negative error code.
		*/
		int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
		void snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx, bool enable)
		{
		struct drm_audio_component *acomp = bus->audio_component;

		if (!acomp \|\| !acomp->ops)
		return -ENODEV;

		dev_dbg(bus->dev, "display power %s\n",
		enable ? "enable" : "disable");
		if (enable)
		set_bit(idx, &bus->display_power_status);
		else
		clear_bit(idx, &bus->display_power_status);

		if (enable) {
		if (!bus->drm_power_refcount++) {
		if (!acomp \|\| !acomp->ops)
		return;

		if (bus->display_power_status) {
		if (!bus->display_power_active) {
		if (acomp->ops->get_power)
		acomp->ops->get_power(acomp->dev);
		snd_hdac_set_codec_wakeup(bus, true);
		snd_hdac_set_codec_wakeup(bus, false);
		bus->display_power_active = true;
		}
		} else {
		WARN_ON(!bus->drm_power_refcount);
		if (!--bus->drm_power_refcount)
		if (bus->display_power_active) {
		if (acomp->ops->put_power)
		acomp->ops->put_power(acomp->dev);
		bus->display_power_active = false;
		}
		}

		return 0;
		}
		EXPORT_SYMBOL_GPL(snd_hdac_display_power);

		@@ -321,10 +324,12 @@ int snd_hdac_acomp_exit(struct hdac_bus *bus)
		if (!acomp)
		return 0;

		WARN_ON(bus->drm_power_refcount);
		if (bus->drm_power_refcount > 0 && acomp->ops)
		if (WARN_ON(bus->display_power_active) && acomp->ops)
		acomp->ops->put_power(acomp->dev);

		bus->display_power_active = false;
		bus->display_power_status = 0;

		component_master_del(dev, &hdac_component_master_ops);

		bus->audio_component = NULL;

sound/hda/hdac_device.c

+0 −17

Original line number	Diff line number	Diff line
		@@ -622,23 +622,6 @@ int snd_hdac_power_down_pm(struct hdac_device *codec)
		EXPORT_SYMBOL_GPL(snd_hdac_power_down_pm);
		#endif

		/**
		* snd_hdac_link_power - Enable/disable the link power for a codec
		* @codec: the codec object
		* @bool: enable or disable the link power
		*/
		int snd_hdac_link_power(struct hdac_device *codec, bool enable)
		{
		if (!codec->link_power_control)
		return 0;

		if (codec->bus->ops->link_power)
		return codec->bus->ops->link_power(codec->bus, enable);
		else
		return -EINVAL;
		}
		EXPORT_SYMBOL_GPL(snd_hdac_link_power);

		/* codec vendor labels */
		struct hda_vendor_id {
		unsigned int id;