leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ASoC: Skip noop reconfiguration of WM8958 DSP2 algorithms

Browse Source 
If we're setting the currently applied value for one of the DSP algorithm
configurations we can just skip all the handling as the control set is a
noop. This ensures we do not disrupt a running DSP.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Cc: stable@kernel.org
This commit is contained in:
Mark Brown 2011-05-15 18:02:53 -07:00
parent fb5af53d42
commit d7fdae7c65
1 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
sound/soc/codecs/wm8958-dsp2.c
View File

@ -508,6 +508,9 @@ static int wm8958_mbc_put(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
if (wm8994->mbc_ena[mbc] == ucontrol->value.integer.value[0])
return 0;
if (ucontrol->value.integer.value[0] > 1)
return -EINVAL;
@ -628,6 +631,9 @@ static int wm8958_vss_put(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
if (wm8994->vss_ena[vss] == ucontrol->value.integer.value[0])
return 0;
if (ucontrol->value.integer.value[0] > 1)
return -EINVAL;
@ -689,6 +695,16 @@ static int wm8958_hpf_put(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
if (hpf < 3) {
if (wm8994->hpf1_ena[hpf % 3] ==
ucontrol->value.integer.value[0])
return 0;
} else {
if (wm8994->hpf2_ena[hpf % 3] ==
ucontrol->value.integer.value[0])
return 0;
}
if (ucontrol->value.integer.value[0] > 1)
return -EINVAL;
@ -782,6 +798,9 @@ static int wm8958_enh_eq_put(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
if (wm8994->enh_eq_ena[eq] == ucontrol->value.integer.value[0])
return 0;
if (ucontrol->value.integer.value[0] > 1)
return -EINVAL;