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Commit c5910a70 authored by Candelaria Villareal, Jorge's avatar Candelaria Villareal, Jorge Committed by Mark Brown
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ASoC: SDP3430: Add support for EXTMUTE using TWL GPIO6 



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: default avatarJorge Eduardo Candelaria <x0107209@ti.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 416c8fe3

sound/soc/omap/sdp3430.c

+9 −0
Original line number Diff line number Diff line
@@ -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;