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authorDavid Henningsson <david.henningsson@canonical.com>2015-08-19 11:48:57 +0300
committerTakashi Iwai <tiwai@suse.de>2015-09-02 13:23:55 +0300
commit45c053df5bdc4843cf19b920db6ab819ddc27ff7 (patch)
tree3eed70f87f158814dcc60d645c175833240a0fa8
parent51e1d83cab9988716ae68801a721f4df0aaa374b (diff)
downloadlinux-45c053df5bdc4843cf19b920db6ab819ddc27ff7.tar.xz
ALSA: hda - allow codecs to access the i915 pin/ELD callback
This lets the interested codec be notified when an i915 pin/ELD event happens. [tiwai: Fixed a trivial build error for CONFIG_SND_HDA_I915=n] Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--include/sound/hda_i915.h7
-rw-r--r--sound/hda/hdac_i915.c10
2 files changed, 17 insertions, 0 deletions
diff --git a/include/sound/hda_i915.h b/include/sound/hda_i915.h
index adb5ba5cbd9d..a5b5cae03e87 100644
--- a/include/sound/hda_i915.h
+++ b/include/sound/hda_i915.h
@@ -4,12 +4,15 @@
#ifndef __SOUND_HDA_I915_H
#define __SOUND_HDA_I915_H
+#include <drm/i915_component.h>
+
#ifdef CONFIG_SND_HDA_I915
int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
int snd_hdac_display_power(struct hdac_bus *bus, bool enable);
int snd_hdac_get_display_clk(struct hdac_bus *bus);
int snd_hdac_i915_init(struct hdac_bus *bus);
int snd_hdac_i915_exit(struct hdac_bus *bus);
+int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *);
#else
static int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
{
@@ -31,6 +34,10 @@ static inline int snd_hdac_i915_exit(struct hdac_bus *bus)
{
return 0;
}
+static inline int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *ops)
+{
+ return -ENODEV;
+}
#endif
#endif /* __SOUND_HDA_I915_H */
diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c
index 5676b849379d..55c3df4458f7 100644
--- a/sound/hda/hdac_i915.c
+++ b/sound/hda/hdac_i915.c
@@ -134,6 +134,16 @@ static int hdac_component_master_match(struct device *dev, void *data)
return !strcmp(dev->driver->name, "i915");
}
+int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *aops)
+{
+ if (WARN_ON(!hdac_acomp))
+ return -ENODEV;
+
+ hdac_acomp->audio_ops = aops;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_i915_register_notifier);
+
int snd_hdac_i915_init(struct hdac_bus *bus)
{
struct component_match *match = NULL;