Merge branch 'topic/hda-alc-mute' into topic/hda

sound/pci/hda/hda_codec.c

@@ -1209,8 +1209,7 @@ static void free_hda_cache(struct hda_cache_rec *cache)
 }
 
 /* query the hash.  allocate an entry if not found. */
-static struct hda_cache_head  *get_alloc_hash(struct hda_cache_rec *cache,
-					      u32 key)
+static struct hda_cache_head  *get_hash(struct hda_cache_rec *cache, u32 key)
 {
 	u16 idx = key % (u16)ARRAY_SIZE(cache->hash);
 	u16 cur = cache->hash[idx];
@@ -1222,17 +1221,27 @@ static struct hda_cache_head  *get_alloc_hash(struct hda_cache_rec *cache,
 			return info;
 		cur = info->next;
 	}
+	return NULL;
+}
 
-	/* add a new hash entry */
-	info = snd_array_new(&cache->buf);
-	if (!info)
-		return NULL;
-	cur = snd_array_index(&cache->buf, info);
-	info->key = key;
-	info->val = 0;
-	info->next = cache->hash[idx];
-	cache->hash[idx] = cur;
-
+/* query the hash.  allocate an entry if not found. */
+static struct hda_cache_head  *get_alloc_hash(struct hda_cache_rec *cache,
+					      u32 key)
+{
+	struct hda_cache_head *info = get_hash(cache, key);
+	if (!info) {
+		u16 idx, cur;
+		/* add a new hash entry */
+		info = snd_array_new(&cache->buf);
+		if (!info)
+			return NULL;
+		cur = snd_array_index(&cache->buf, info);
+		info->key = key;
+		info->val = 0;
+		idx = key % (u16)ARRAY_SIZE(cache->hash);
+		info->next = cache->hash[idx];
+		cache->hash[idx] = cur;
+	}
 	return info;
 }
 
@@ -2721,6 +2730,41 @@ int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
 }
 EXPORT_SYMBOL_HDA(snd_hda_codec_write_cache);
 
+/**
+ * snd_hda_codec_update_cache - check cache and write the cmd only when needed
+ * @codec: the HDA codec
+ * @nid: NID to send the command
+ * @direct: direct flag
+ * @verb: the verb to send
+ * @parm: the parameter for the verb
+ *
+ * This function works like snd_hda_codec_write_cache(), but it doesn't send
+ * command if the parameter is already identical with the cached value.
+ * If not, it sends the command and refreshes the cache.
+ *
+ * Returns 0 if successful, or a negative error code.
+ */
+int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
+			       int direct, unsigned int verb, unsigned int parm)
+{
+	struct hda_cache_head *c;
+	u32 key;
+
+	/* parm may contain the verb stuff for get/set amp */
+	verb = verb | (parm >> 8);
+	parm &= 0xff;
+	key = build_cmd_cache_key(nid, verb);
+	mutex_lock(&codec->bus->cmd_mutex);
+	c = get_hash(&codec->cmd_cache, key);
+	if (c && c->val == parm) {
+		mutex_unlock(&codec->bus->cmd_mutex);
+		return 0;
+	}
+	mutex_unlock(&codec->bus->cmd_mutex);
+	return snd_hda_codec_write_cache(codec, nid, direct, verb, parm);
+}
+EXPORT_SYMBOL_HDA(snd_hda_codec_update_cache);
+
 /**
  * snd_hda_codec_resume_cache - Resume the all commands from the cache
  * @codec: HD-audio codec

sound/pci/hda/hda_codec.h

@@ -885,9 +885,12 @@ int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
 			      int direct, unsigned int verb, unsigned int parm);
 void snd_hda_sequence_write_cache(struct hda_codec *codec,
 				  const struct hda_verb *seq);
+int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
+			      int direct, unsigned int verb, unsigned int parm);
 void snd_hda_codec_resume_cache(struct hda_codec *codec);
 #else
 #define snd_hda_codec_write_cache	snd_hda_codec_write
+#define snd_hda_codec_update_cache	snd_hda_codec_write
 #define snd_hda_sequence_write_cache	snd_hda_sequence_write
 #endif
 

sound/pci/hda/patch_realtek.c

@@ -3467,6 +3467,10 @@ static int alc_init(struct hda_codec *codec)
 	if (spec->init_hook)
 		spec->init_hook(codec);
 
+#ifdef CONFIG_SND_HDA_POWER_SAVE
+	if (codec->patch_ops.check_power_status)
+		codec->patch_ops.check_power_status(codec, 0x01);
+#endif
 	return 0;
 }
 
@@ -3827,6 +3831,10 @@ static int alc_resume(struct hda_codec *codec)
 	codec->patch_ops.init(codec);
 	snd_hda_codec_resume_amp(codec);
 	snd_hda_codec_resume_cache(codec);
+#ifdef CONFIG_SND_HDA_POWER_SAVE
+	if (codec->patch_ops.check_power_status)
+		codec->patch_ops.check_power_status(codec, 0x01);
+#endif
 	return 0;
 }
 #endif
@@ -13983,6 +13991,35 @@ static struct hda_pcm_stream alc269_44k_pcm_analog_capture = {
 	/* NID is set in alc_build_pcms */
 };
 
+#ifdef CONFIG_SND_HDA_POWER_SAVE
+static int alc269_mic2_for_mute_led(struct hda_codec *codec)
+{
+	switch (codec->subsystem_id) {
+	case 0x103c1586:
+		return 1;
+	}
+	return 0;
+}
+
+static int alc269_mic2_mute_check_ps(struct hda_codec *codec, hda_nid_t nid)
+{
+	/* update mute-LED according to the speaker mute state */
+	if (nid == 0x01 || nid == 0x14) {
+		int pinval;
+		if (snd_hda_codec_amp_read(codec, 0x14, 0, HDA_OUTPUT, 0) &
+		    HDA_AMP_MUTE)
+			pinval = 0x24;
+		else
+			pinval = 0x20;
+		/* mic2 vref pin is used for mute LED control */
+		snd_hda_codec_update_cache(codec, 0x19, 0,
+					   AC_VERB_SET_PIN_WIDGET_CONTROL,
+					   pinval);
+	}
+	return alc_check_power_status(codec, nid);
+}
+#endif /* CONFIG_SND_HDA_POWER_SAVE */
+
 /*
  * BIOS auto configuration
  */
@@ -14330,6 +14367,8 @@ static int patch_alc269(struct hda_codec *codec)
 #ifdef CONFIG_SND_HDA_POWER_SAVE
 	if (!spec->loopback.amplist)
 		spec->loopback.amplist = alc269_loopbacks;
+	if (alc269_mic2_for_mute_led(codec))
+		codec->patch_ops.check_power_status = alc269_mic2_mute_check_ps;
 #endif
 
 	return 0;