diff options
| author |   Peter Ujfalusi <peter.ujfalusi@ti.com> | 2012-09-10 13:46:27 +0300 |
|---|---|---|
| committer |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-09-22 11:18:24 -0400 |
| commit | 281ecd1611654cdcdec0ffcb55e8f285b8199727 (patch) | |
| tree | 840f6d17d56fc02f2f19d36e775f5d8197360a1f /sound | |
| parent | Input: twl4030-vibra: Support for DT booted kernel (diff) | |
| download | linux-dev-281ecd1611654cdcdec0ffcb55e8f285b8199727.tar.xz linux-dev-281ecd1611654cdcdec0ffcb55e8f285b8199727.zip | |
ASoC: twl4030: Move hs_extmute GPIO handling to driver
The external mute (if it is in use) is handled by a GPIO line. Prepare to
remove the set_hs_extmute callback and replace it with:
hs_extmute_gpio: the GPIO number to use for external mute
When the users of set_hs_extmute has been converted the callback can be removed.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/twl4030.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 962341df7ddc..0c83c9263f4f 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -28,6 +28,7 @@ #include <linux/platform_device.h> #include <linux/i2c/twl.h> #include <linux/slab.h> +#include <linux/gpio.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -302,6 +303,22 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) u8 reg, byte; int i = 0; + 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; + } + } + /* Check defaults, if instructed before anything else */ if (pdata && pdata->check_defaults) twl4030_check_defaults(codec); @@ -748,7 +765,10 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp) /* Enable external mute control, this dramatically reduces * the pop-noise */ if (pdata && pdata->hs_extmute) { - if (pdata->set_hs_extmute) { + if (gpio_is_valid(pdata->hs_extmute_gpio)) { + gpio_set_value(pdata->hs_extmute_gpio, 1); + } else if (pdata->set_hs_extmute) { + dev_warn(codec->dev, "set_hs_extmute is deprecated\n"); pdata->set_hs_extmute(1); } else { hs_pop |= TWL4030_EXTMUTE; @@ -786,7 +806,10 @@ static void headset_ramp(struct snd_soc_codec *codec, int ramp) /* Disable external mute */ if (pdata && pdata->hs_extmute) { - if (pdata->set_hs_extmute) { + if (gpio_is_valid(pdata->hs_extmute_gpio)) { + gpio_set_value(pdata->hs_extmute_gpio, 0); + } else if (pdata->set_hs_extmute) { + dev_warn(codec->dev, "set_hs_extmute is deprecated\n"); pdata->set_hs_extmute(0); } else { hs_pop &= ~TWL4030_EXTMUTE; @@ -2236,12 +2259,17 @@ static int twl4030_soc_probe(struct snd_soc_codec *codec) static int twl4030_soc_remove(struct snd_soc_codec *codec) { + struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev); struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); /* Reset registers to their chip default before leaving */ twl4030_reset_registers(codec); twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF); kfree(twl4030); + + if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio)) + gpio_free(pdata->hs_extmute_gpio); + return 0; } |