[PATCH 2/4] ALSA: hda/senary: Implement proper resume callback

[wangdich9700@163.com]

From: wangdicheng <wangdicheng@kylinos.cn>

The SN6186 codec requires register re-synchronization after resume from
S3 state. The current driver lacks a resume callback, which may lead to
loss of hardware state or audio malfunction after system resume.

This patch adds a resume callback that:
1. Syncs the regcache to restore register values.
2. Re-applies the vendor-specific hardware init verbs.
3. Reports jack status to update the audio path.

Signed-off-by: wangdicheng <wangdicheng@kylinos.cn>
---
 sound/hda/codecs/senarytech.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sound/hda/codecs/senarytech.c b/sound/hda/codecs/senarytech.c
index f9a389df3a17..8ebd974817ac 100644
--- a/sound/hda/codecs/senarytech.c
+++ b/sound/hda/codecs/senarytech.c
@@ -205,6 +205,18 @@ static int senary_suspend(struct hda_codec *codec)
 	return 0;
 }
 
+static int senary_resume(struct hda_codec *codec)
+{
+	/* Re-sync registers */
+	regcache_sync(codec->core.regmap);
+
+	/* Re-run init verbs to restore hardware state */
+	senary_init_verb(codec);
+
+	snd_hda_jack_report_sync(codec);
+	return 0;
+}
+
 static int senary_probe(struct hda_codec *codec, const struct hda_device_id *id)
 {
 	struct senary_spec *spec;
@@ -286,6 +298,7 @@ static const struct hda_codec_ops senary_codec_ops = {
 	.init = senary_init,
 	.unsol_event = snd_hda_jack_unsol_event,
 	.suspend = senary_suspend,
+	.resume = senary_resume,
 	.check_power_status = snd_hda_gen_check_power_status,
 	.stream_pm = snd_hda_gen_stream_pm,
 };
-- 
2.25.1