[alsa-devel] [PATCH] ASoC: SDP3430: Add support for EXTMUTE using TWL GPIO6
Candelaria Villareal, Jorge
x0107209 at ti.com
Wed Jul 15 03:04:08 CEST 2009
Board sdp3430 has hardware support for EXTMUTE using TWL4030 GPIO6
line, controlled by register INTBR_PMBR1. Machine driver takes care
of enabling gpio line through i2c and codec driver manipulates the
line during headset ramp up/down sequence.
Signed-off-by: Jorge Eduardo Candelaria <x0107209 at ti.com>
---
sound/soc/omap/sdp3430.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/sound/soc/omap/sdp3430.c b/sound/soc/omap/sdp3430.c
index c51594d..f7e5b74 100644
--- a/sound/soc/omap/sdp3430.c
+++ b/sound/soc/omap/sdp3430.c
@@ -24,6 +24,7 @@
#include <linux/clk.h>
#include <linux/platform_device.h>
+#include <linux/i2c/twl4030.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
@@ -39,6 +40,9 @@
#include "omap-pcm.h"
#include "../codecs/twl4030.h"
+#define TWL4030_INTBR_PMBR1 0x0D
+#define EXTMUTE(value) (value << 2)
+
static struct snd_soc_card snd_soc_sdp3430;
static int sdp3430_hw_params(struct snd_pcm_substream *substream,
@@ -280,6 +284,7 @@ static struct snd_soc_card snd_soc_sdp3430 = {
static struct twl4030_setup_data twl4030_setup = {
.ramp_delay_value = 3,
.sysclk = 26000,
+ .hs_extmute = 1,
};
/* Audio subsystem */
@@ -312,6 +317,10 @@ static int __init sdp3430_soc_init(void)
*(unsigned int *)sdp3430_dai[0].cpu_dai->private_data = 1; /* McBSP2 */
*(unsigned int *)sdp3430_dai[1].cpu_dai->private_data = 2; /* McBSP3 */
+ /* Set TWL4030 GPIO6 as EXTMUTE signal */
+ twl4030_i2c_write_u8(TWL4030_MODULE_INTBR, EXTMUTE(0x02),
+ TWL4030_MODULE_INTBR);
+
ret = platform_device_add(sdp3430_snd_device);
if (ret)
goto err1;
--
1.6.0.4
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