diff options
| author | Camel Guo <camelg@axis.com> | 2020-09-18 13:40:25 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-09-18 13:09:02 +0100 |
| commit | d5214321498a43558d9ffcce4153775c2c296bad (patch) | |
| tree | 357d52e1ac81af92d48f626cc0128abc1670be80 /sound/soc/codecs/tlv320adcx140.c | |
| parent | 15b3d324c8980022071710b5096b705eb6b74fca (diff) | |
ASoC: tlv320adcx140: Add support for configuring GPIO pin
Add support to configure the GPIO pin to the specific configuration.
The GPIO pin can be configured as GPO, IRQ, SDOUT2, PDMCLK, MICBASE_EN,
GPI, MCLK, SDIN, PDMDIN1, PDMDIN2, PDMDIN3 or PDMDIN4 and the output
drive can be configured with various configuration.
Signed-off-by: Camel Guo <camelg@axis.com>
Link: https://lore.kernel.org/r/20200918114025.18205-2-camel.guo@axis.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/tlv320adcx140.c')
| -rw-r--r-- | sound/soc/codecs/tlv320adcx140.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c index 28dbd7d5e149..53a80246aee1 100644 --- a/sound/soc/codecs/tlv320adcx140.c +++ b/sound/soc/codecs/tlv320adcx140.c @@ -861,6 +861,42 @@ static int adcx140_configure_gpo(struct adcx140_priv *adcx140) } +static int adcx140_configure_gpio(struct adcx140_priv *adcx140) +{ + int gpio_count = 0; + u32 gpio_outputs[ADCX140_NUM_GPIO_CFGS]; + u32 gpio_output_val = 0; + int ret; + + gpio_count = device_property_count_u32(adcx140->dev, + "ti,gpio-config"); + if (gpio_count == 0) + return 0; + + if (gpio_count != ADCX140_NUM_GPIO_CFGS) + return -EINVAL; + + ret = device_property_read_u32_array(adcx140->dev, "ti,gpio-config", + gpio_outputs, gpio_count); + if (ret) + return ret; + + if (gpio_outputs[0] > ADCX140_GPIO_CFG_MAX) { + dev_err(adcx140->dev, "GPIO config out of range\n"); + return -EINVAL; + } + + if (gpio_outputs[1] > ADCX140_GPIO_DRV_MAX) { + dev_err(adcx140->dev, "GPIO drive out of range\n"); + return -EINVAL; + } + + gpio_output_val = gpio_outputs[0] << ADCX140_GPIO_SHIFT + | gpio_outputs[1]; + + return regmap_write(adcx140->regmap, ADCX140_GPIO_CFG0, gpio_output_val); +} + static int adcx140_codec_probe(struct snd_soc_component *component) { struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component); @@ -958,6 +994,10 @@ static int adcx140_codec_probe(struct snd_soc_component *component) return ret; } + ret = adcx140_configure_gpio(adcx140); + if (ret) + return ret; + ret = adcx140_configure_gpo(adcx140); if (ret) goto out; |