ASoC: cs4271: add support for AMUTEB=BMUTEC feature
The CS4271 has a feature to sync its analog mute flags, so one mute
circuitry can be used for both channels.
Give users access to this feature with a new DT property and a flag in
the platform data.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index f994af3..2ac5fe6 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -474,15 +474,25 @@
struct cs4271_platform_data *cs4271plat = codec->dev->platform_data;
int ret;
int gpio_nreset = -EINVAL;
+ int amutec_eq_bmutec = 0;
#ifdef CONFIG_OF
- if (of_match_device(cs4271_dt_ids, codec->dev))
+ if (of_match_device(cs4271_dt_ids, codec->dev)) {
gpio_nreset = of_get_named_gpio(codec->dev->of_node,
"reset-gpio", 0);
+
+ if (!of_get_property(codec->dev->of_node,
+ "cirrus,amutec-eq-bmutec", NULL))
+ amutec_eq_bmutec = 1;
+ }
#endif
- if (cs4271plat && gpio_is_valid(cs4271plat->gpio_nreset))
- gpio_nreset = cs4271plat->gpio_nreset;
+ if (cs4271plat) {
+ if (gpio_is_valid(cs4271plat->gpio_nreset))
+ gpio_nreset = cs4271plat->gpio_nreset;
+
+ amutec_eq_bmutec = cs4271plat->amutec_eq_bmutec;
+ }
if (gpio_nreset >= 0)
if (gpio_request(gpio_nreset, "CS4271 Reset"))
@@ -528,6 +538,11 @@
/* Power-up sequence requires 85 uS */
udelay(85);
+ if (amutec_eq_bmutec)
+ snd_soc_update_bits(codec, CS4271_MODE2,
+ CS4271_MODE2_MUTECAEQUB,
+ CS4271_MODE2_MUTECAEQUB);
+
return snd_soc_add_codec_controls(codec, cs4271_snd_controls,
ARRAY_SIZE(cs4271_snd_controls));
}