diff options
Diffstat (limited to 'sound/soc/codecs/twl4030.c')
| -rw-r--r-- | sound/soc/codecs/twl4030.c | 44 |
1 files changed, 31 insertions, 13 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 5dd7c81623a6..7bfabe5750e8 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -41,6 +41,11 @@ /* Register descriptions are here */ #include <linux/mfd/twl4030-audio.h> +/* TWL4030 PMBR1 Register */ +#define TWL4030_PMBR1_REG 0x0D +/* TWL4030 PMBR1 Register GPIO6 mux bits */ +#define TWL4030_GPIO6_PWM0_MUTE(value) ((value & 0x03) << 2) + /* Shadow register used by the audio driver */ #define TWL4030_REG_SW_SHADOW 0x4A #define TWL4030_CACHEREGNUM (TWL4030_REG_SW_SHADOW + 1) @@ -348,19 +353,32 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) pdata = twl4030_get_pdata(codec); - if (pdata && pdata->hs_extmute && - gpio_is_valid(pdata->hs_extmute_gpio)) { - int ret; - - if (!pdata->hs_extmute_gpio) - dev_warn(codec->dev, - "Extmute GPIO is 0 is this correct?\n"); - - ret = gpio_request_one(pdata->hs_extmute_gpio, - GPIOF_OUT_INIT_LOW, "hs_extmute"); - if (ret) { - dev_err(codec->dev, "Failed to get hs_extmute GPIO\n"); - pdata->hs_extmute_gpio = -1; + if (pdata && pdata->hs_extmute) { + if (gpio_is_valid(pdata->hs_extmute_gpio)) { + int ret; + + if (!pdata->hs_extmute_gpio) + dev_warn(codec->dev, + "Extmute GPIO is 0 is this correct?\n"); + + ret = gpio_request_one(pdata->hs_extmute_gpio, + GPIOF_OUT_INIT_LOW, + "hs_extmute"); + if (ret) { + dev_err(codec->dev, + "Failed to get hs_extmute GPIO\n"); + pdata->hs_extmute_gpio = -1; + } + } else { + u8 pin_mux; + + /* Set TWL4030 GPIO6 as EXTMUTE signal */ + twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux, + TWL4030_PMBR1_REG); + pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03); + pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02); + twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux, + TWL4030_PMBR1_REG); } } |