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

3 files changed, 98 insertions, 12 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index d1424e7b9f3d..a3d638c8c1fd 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/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;
 }
 
@@ -2722,6 +2731,41 @@ 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
  *
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index b75da47571e6..49e939e7e5cd 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/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
 
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 1694f60631a1..8ae48061e8c7 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/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;