ALSA: hda - Add snd_hda_check_power_state() helper function
... for small refactoring.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 5bd4b0c..9641c0e 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -240,10 +240,7 @@
static void update_power_state(struct hda_codec *codec, hda_nid_t nid,
unsigned int parm)
{
- unsigned int state = snd_hda_codec_read(codec, nid, 0,
- AC_VERB_GET_POWER_STATE, 0);
- state = (state >> 4) & 0x0f;
- if (state == parm)
+ if (snd_hda_check_power_state(codec, nid, parm))
return;
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_POWER_STATE, parm);
}
@@ -253,10 +250,8 @@
{
struct via_spec *spec = codec->spec;
unsigned int format;
- unsigned int state = snd_hda_codec_read(codec, nid, 0,
- AC_VERB_GET_POWER_STATE, 0);
- state = (state >> 4) & 0x0f;
- if (state == parm)
+
+ if (snd_hda_check_power_state(codec, nid, parm))
return;
format = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
if (format && (spec->dac_stream_tag[index] != format))