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ASoC: wm5110: Power both channels for differential mono output 

On the wm5110 CODEC both the left and right channel must be powered
when an output is being used as a mono output, although no audio is
routed to the right output channel. This patch adds additional DAPM
routes to link the right channel to the left in the case where an output
is marked as mono. Audio must always be brought in on the left channel
for mono operation.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Charles Keepax 2014-06-10 18:41:02 +01:00 committed by Mark Brown
parent 7171511eae
commit b60f363b7f
3 changed files with 27 additions and 0 deletions
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25
sound/soc/codecs/arizona.c
View File

@ -243,6 +243,31 @@ int arizona_init_spk(struct snd_soc_codec *codec)
}
EXPORT_SYMBOL_GPL(arizona_init_spk);
static const struct snd_soc_dapm_route arizona_mono_routes[] = {
{ "OUT1R", NULL, "OUT1L" },
{ "OUT2R", NULL, "OUT2L" },
{ "OUT3R", NULL, "OUT3L" },
{ "OUT4R", NULL, "OUT4L" },
{ "OUT5R", NULL, "OUT5L" },
{ "OUT6R", NULL, "OUT6L" },
};
int arizona_init_mono(struct snd_soc_codec *codec)
{
struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);
struct arizona *arizona = priv->arizona;
int i;
for (i = 0; i < ARIZONA_MAX_OUTPUT; ++i) {
if (arizona->pdata.out_mono[i])
snd_soc_dapm_add_routes(&codec->dapm,
&arizona_mono_routes[i], 1);
}
return 0;
}
EXPORT_SYMBOL_GPL(arizona_init_mono);
int arizona_init_gpio(struct snd_soc_codec *codec)
{
struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);

1
sound/soc/codecs/arizona.h
View File

@ -249,6 +249,7 @@ extern int arizona_set_fll(struct arizona_fll *fll, int source,
extern int arizona_init_spk(struct snd_soc_codec *codec);
extern int arizona_init_gpio(struct snd_soc_codec *codec);
extern int arizona_init_mono(struct snd_soc_codec *codec);
extern int arizona_init_dai(struct arizona_priv *priv, int dai);

1
sound/soc/codecs/wm5110.c
View File

@ -1596,6 +1596,7 @@ static int wm5110_codec_probe(struct snd_soc_codec *codec)
arizona_init_spk(codec);
arizona_init_gpio(codec);
arizona_init_mono(codec);
ret = snd_soc_add_codec_controls(codec, wm_adsp2_fw_controls, 8);
if (ret != 0)