UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ASoC: Zoom2: Update twl4030_setup_data parameters 

Add support for EXTMUTE in Zoom2 machine driver. This is necessary
to further reduce pop noise problem. Signal EXTMUTE is connected to
signal GPIO 153 in Zoom2 board.

In addition, change ramp delay value to 3 (218/161/109 ms). With
previous ramp delay value, pop noise was louder. With a longer value
the beep tone can be observed.

Signed-off-by: Jorge Eduardo Candelaria <x0107209@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Candelaria Villareal, Jorge 2009-07-02 19:04:07 -05:00 committed by Mark Brown
parent 4e49ffd10f
commit 1b6ebdd7bb
1 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
sound/soc/omap/zoom2.c
View File

@ -35,7 +35,8 @@
#include "omap-pcm.h"
#include "../codecs/twl4030.h"
#define ZOOM2_HEADSET_MUX_GPIO (OMAP_MAX_GPIO_LINES + 15)
#define ZOOM2_HEADSET_MUX_GPIO (OMAP_MAX_GPIO_LINES + 15)
#define ZOOM2_HEADSET_EXTMUTE_GPIO 153
static int zoom2_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
@ -234,10 +235,18 @@ static struct snd_soc_card snd_soc_zoom2 = {
.num_links = ARRAY_SIZE(zoom2_dai),
};
/* EXTMUTE callback function */
void zoom2_set_hs_extmute(int mute)
{
gpio_set_value(ZOOM2_HEADSET_EXTMUTE_GPIO, mute);
}
/* twl4030 setup */
static struct twl4030_setup_data twl4030_setup = {
.ramp_delay_value = 2, /* 81 ms */
.ramp_delay_value = 3, /* 161 ms */
.sysclk = 26000,
.hs_extmute = 1,
.set_hs_extmute = zoom2_set_hs_extmute,
};
/* Audio subsystem */
@ -277,6 +286,9 @@ static int __init zoom2_soc_init(void)
BUG_ON(gpio_request(ZOOM2_HEADSET_MUX_GPIO, "hs_mux") < 0);
gpio_direction_output(ZOOM2_HEADSET_MUX_GPIO, 0);
BUG_ON(gpio_request(ZOOM2_HEADSET_EXTMUTE_GPIO, "ext_mute") < 0);
gpio_direction_output(ZOOM2_HEADSET_EXTMUTE_GPIO, 0);
return 0;
err1:
@ -290,6 +302,7 @@ module_init(zoom2_soc_init);
static void __exit zoom2_soc_exit(void)
{
gpio_free(ZOOM2_HEADSET_MUX_GPIO);
gpio_free(ZOOM2_HEADSET_EXTMUTE_GPIO);
platform_device_unregister(zoom2_snd_device);
}