ALSA: hda - Clear dirty flag upon cache write
When verbs or amps are actually written to the hardware, we can clear dirty flag so that the later snd_hda_codec_resume_*() calls can skip these verbs / amps. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -1848,6 +1848,7 @@ static int codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
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bool init_only)
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{
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struct hda_amp_info *info;
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unsigned int cache_only;
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if (snd_BUG_ON(mask & ~0xff))
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mask &= 0xff;
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@ -1865,10 +1866,9 @@ static int codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
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return 0;
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}
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info->vol[ch] = val;
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if (codec->cached_write)
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info->head.dirty = 1;
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cache_only = info->head.dirty = codec->cached_write;
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mutex_unlock(&codec->hash_mutex);
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if (!codec->cached_write)
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if (!cache_only)
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put_vol_mute(codec, info, nid, ch, direction, idx, val);
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return 1;
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}
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@ -3450,8 +3450,10 @@ int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
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int err;
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struct hda_cache_head *c;
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u32 key;
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unsigned int cache_only;
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if (!codec->cached_write) {
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cache_only = codec->cached_write;
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if (!cache_only) {
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err = snd_hda_codec_write(codec, nid, direct, verb, parm);
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if (err < 0)
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return err;
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@ -3465,8 +3467,7 @@ int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
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c = get_alloc_hash(&codec->cmd_cache, key);
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if (c) {
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c->val = parm;
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if (codec->cached_write)
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c->dirty = 1;
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c->dirty = cache_only;
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}
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mutex_unlock(&codec->bus->cmd_mutex);
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return 0;
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