Unverified Commit d5214321 authored by Camel Guo's avatar Camel Guo Committed by Mark Brown
Browse files

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: default avatarCamel Guo <camelg@axis.com>
Link: https://lore.kernel.org/r/20200918114025.18205-2-camel.guo@axis.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 15b3d324

sound/soc/codecs/tlv320adcx140.c

+40 −0
Original line number Diff line number Diff line
@@ -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;

sound/soc/codecs/tlv320adcx140.h

+5 −0
Original line number Diff line number Diff line
@@ -148,4 +148,9 @@ 


#define ADCX140_TX_FILL    BIT(0)



#define ADCX140_NUM_GPIO_CFGS		2

#define ADCX140_GPIO_SHIFT		4

#define ADCX140_GPIO_CFG_MAX		15

#define ADCX140_GPIO_DRV_MAX		5



#endif /* _TLV320ADCX140_ */