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ASoC: tpa6130a2: Replace DAPM code with direct interface
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The use of DAPM widgets, and extra routing can cause ordering
problems in the system.
Machine drivers should use the exported direct interface with
SND_SOC_DAPM_HP's event callback to manage the state of the
amplifier.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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Peter Ujfalusi authored and Liam Girdwood committed Dec 2, 2010
1 parent 1bb5ec6 commit 3964687
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Showing 2 changed files with 12 additions and 58 deletions.
69 changes: 11 additions & 58 deletions sound/soc/codecs/tpa6130a2.c
Original file line number Diff line number Diff line change
Expand Up @@ -317,65 +317,24 @@ static void tpa6130a2_channel_enable(u8 channel, int enable)
}
}

static int tpa6130a2_pga_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
switch (event) {
case SND_SOC_DAPM_POST_PMU:
tpa6130a2_channel_enable(w->shift, 1);
break;
case SND_SOC_DAPM_POST_PMD:
tpa6130a2_channel_enable(w->shift, 0);
break;
}
return 0;
}

static int tpa6130a2_supply_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
int tpa6130a2_stereo_enable(struct snd_soc_codec *codec, int enable)
{
int ret = 0;

switch (event) {
case SND_SOC_DAPM_POST_PMU:
if (enable) {
ret = tpa6130a2_power(1);
break;
case SND_SOC_DAPM_POST_PMD:
if (ret < 0)
return ret;
tpa6130a2_channel_enable(TPA6130A2_HP_EN_R | TPA6130A2_HP_EN_L,
1);
} else {
tpa6130a2_channel_enable(TPA6130A2_HP_EN_R | TPA6130A2_HP_EN_L,
0);
ret = tpa6130a2_power(0);
break;
}

return ret;
}

static const struct snd_soc_dapm_widget tpa6130a2_dapm_widgets[] = {
SND_SOC_DAPM_PGA_E("TPA6130A2 Left", SND_SOC_NOPM,
TPA6130A2_HP_EN_L, 0, NULL, 0, tpa6130a2_pga_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_PGA_E("TPA6130A2 Right", SND_SOC_NOPM,
TPA6130A2_HP_EN_R, 0, NULL, 0, tpa6130a2_pga_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_PGA_E("TPA6130A2 Stereo", SND_SOC_NOPM,
TPA6130A2_HP_EN_L | TPA6130A2_HP_EN_R, 0, NULL, 0,
tpa6130a2_pga_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("TPA6130A2 Enable", SND_SOC_NOPM,
0, 0, tpa6130a2_supply_event,
SND_SOC_DAPM_POST_PMU|SND_SOC_DAPM_POST_PMD),
/* Outputs */
SND_SOC_DAPM_OUTPUT("TPA6130A2 Headphone Left"),
SND_SOC_DAPM_OUTPUT("TPA6130A2 Headphone Right"),
SND_SOC_DAPM_OUTPUT("TPA6130A2 Headphone Stereo"),
};

static const struct snd_soc_dapm_route audio_map[] = {
{"TPA6130A2 Headphone Left", NULL, "TPA6130A2 Left"},
{"TPA6130A2 Headphone Right", NULL, "TPA6130A2 Right"},
{"TPA6130A2 Headphone Stereo", NULL, "TPA6130A2 Stereo"},

{"TPA6130A2 Headphone Left", NULL, "TPA6130A2 Enable"},
{"TPA6130A2 Headphone Right", NULL, "TPA6130A2 Enable"},
{"TPA6130A2 Headphone Stereo", NULL, "TPA6130A2 Enable"},
};
EXPORT_SYMBOL_GPL(tpa6130a2_stereo_enable);

int tpa6130a2_add_controls(struct snd_soc_codec *codec)
{
Expand All @@ -387,18 +346,12 @@ int tpa6130a2_add_controls(struct snd_soc_codec *codec)

data = i2c_get_clientdata(tpa6130a2_client);

snd_soc_dapm_new_controls(dapm, tpa6130a2_dapm_widgets,
ARRAY_SIZE(tpa6130a2_dapm_widgets));

snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

if (data->id == TPA6140A2)
return snd_soc_add_controls(codec, tpa6140a2_controls,
ARRAY_SIZE(tpa6140a2_controls));
else
return snd_soc_add_controls(codec, tpa6130a2_controls,
ARRAY_SIZE(tpa6130a2_controls));

}
EXPORT_SYMBOL_GPL(tpa6130a2_add_controls);

Expand Down
1 change: 1 addition & 0 deletions sound/soc/codecs/tpa6130a2.h
Original file line number Diff line number Diff line change
Expand Up @@ -57,5 +57,6 @@
#define TPA6130A2_VERSION_MASK (0x0f)

extern int tpa6130a2_add_controls(struct snd_soc_codec *codec);
extern int tpa6130a2_stereo_enable(struct snd_soc_codec *codec, int enable);

#endif /* __TPA6130A2_H__ */

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