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authorDavid Henningsson <david.henningsson@canonical.com>2015-08-19 10:48:58 +0200
committerTakashi Iwai <tiwai@suse.de>2015-09-02 12:24:40 +0200
commit25adc137c546ce297b4d76820913dda11cad3891 (patch)
treed0055d62d7ddc2ad71850de3b12c1b47dc4e60d1
parent45c053df5bdc4843cf19b920db6ab819ddc27ff7 (diff)
ALSA: hda - Wake the codec up on pin/ELD notify events
Whenever there is an event from the i915 driver, wake the codec and recheck plug/unplug + ELD status. This fixes the issue with lost unsol events in power save mode, the codec and controller can now sleep in D3 and still know when the HDMI monitor has been connected. Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/hda/patch_hdmi.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index a97db5fc8a15..932292ce5ce7 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -37,6 +37,8 @@
#include <sound/jack.h>
#include <sound/asoundef.h>
#include <sound/tlv.h>
+#include <sound/hdaudio.h>
+#include <sound/hda_i915.h>
#include "hda_codec.h"
#include "hda_local.h"
#include "hda_jack.h"
@@ -144,6 +146,9 @@ struct hdmi_spec {
*/
struct hda_multi_out multiout;
struct hda_pcm_stream pcm_playback;
+
+ /* i915/powerwell (Haswell+/Valleyview+) specific */
+ struct i915_audio_component_audio_ops i915_audio_ops;
};
@@ -2191,6 +2196,9 @@ static void generic_hdmi_free(struct hda_codec *codec)
struct hdmi_spec *spec = codec->spec;
int pin_idx;
+ if (is_haswell_plus(codec) || is_valleyview_plus(codec))
+ snd_hdac_i915_register_notifier(NULL);
+
for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
@@ -2316,6 +2324,14 @@ static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
snd_hda_codec_set_power_to_all(codec, fg, power_state);
}
+static void intel_pin_eld_notify(void *audio_ptr, int port, int port_mst_index)
+{
+ struct hda_codec *codec = audio_ptr;
+ int pin_nid = port + 0x04;
+
+ check_presence_and_report(codec, pin_nid);
+}
+
static int patch_generic_hdmi(struct hda_codec *codec)
{
struct hdmi_spec *spec;
@@ -2342,8 +2358,12 @@ static int patch_generic_hdmi(struct hda_codec *codec)
if (is_valleyview_plus(codec) || is_skylake(codec))
codec->core.link_power_control = 1;
- if (is_haswell_plus(codec) || is_valleyview_plus(codec))
+ if (is_haswell_plus(codec) || is_valleyview_plus(codec)) {
codec->depop_delay = 0;
+ spec->i915_audio_ops.audio_ptr = codec;
+ spec->i915_audio_ops.pin_eld_notify = intel_pin_eld_notify;
+ snd_hdac_i915_register_notifier(&spec->i915_audio_ops);
+ }
if (hdmi_parse_codec(codec) < 0) {
codec->spec = NULL;

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