Add EXT_MUTE support in Zoom2 machine driver. Member ext_mute_gpio
is passed to TWL4030 as an external mute control for headset power
on/off sequence. This is necessary to further reduce pop noise
problem. Gpio 153 is connected to signal EXT_MUTE in Zoom2 board.
In addition, change ramp delay value to 3 (218/161/109 ms). With
previous ramp delay value, pop noise was louder, and with any
longer value beep tone can be observed.
Signed-off-by: Jorge Eduardo Candelaria <x0107209@xxxxxx>
---
sound/soc/omap/zoom2.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/sound/soc/omap/zoom2.c b/sound/soc/omap/zoom2.c
index 3de6d2b..8941f45 100644
--- a/sound/soc/omap/zoom2.c
+++ b/sound/soc/omap/zoom2.c
@@ -236,8 +236,9 @@ static struct snd_soc_card snd_soc_zoom2 = {
/* twl4030 setup */
static struct twl4030_setup_data twl4030_setup = {
- .ramp_delay_value = 2, /* 81 ms */
+ .ramp_delay_value = 3, /* 161 ms */
.sysclk = 26000,
+ .ext_mute_gpio = 153,
};
/* Audio subsystem */
--
1.6.0.4
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