Commit 50dfb69d authored by Jarkko Nikula's avatar Jarkko Nikula Committed by Mark Brown
Browse files

ASoC: jack: Basic GPIO descriptor conversion 



This patch does basic GPIO descriptor conversion to soc-jack. Even the GPIOs
are still passed and requested using legacy GPIO numbers the driver
internals are converted to use GPIO descriptor API.

Motivation for this is to prepare soc-jack so that it will allow registering
jack GPIO pins using both GPIO descriptors and legacy GPIO numbers.

Signed-off-by: default avatarJarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent c9eaa447

include/sound/soc.h

+1 −0
Original line number Diff line number Diff line
@@ -606,6 +606,7 @@ struct snd_soc_jack_gpio { 


	struct snd_soc_jack *jack;

	struct delayed_work work;

	struct gpio_desc *desc;



	void *data;

	int (*jack_status_check)(void *data);

sound/soc/soc-jack.c

+11 −8
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <sound/jack.h>

#include <sound/soc.h>

#include <linux/gpio.h>

#include <linux/gpio/consumer.h>

#include <linux/interrupt.h>

#include <linux/workqueue.h>

#include <linux/delay.h>
@@ -240,7 +241,7 @@ static void snd_soc_jack_gpio_detect(struct snd_soc_jack_gpio *gpio) 
	int enable;

	int report;



	enable = gpio_get_value_cansleep(gpio->gpio);

	enable = gpiod_get_value_cansleep(gpio->desc);

	if (gpio->invert)

		enable = !enable;
@@ -314,14 +315,16 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, 
		if (ret)

			goto undo;



		ret = gpio_direction_input(gpios[i].gpio);

		gpios[i].desc = gpio_to_desc(gpios[i].gpio);



		ret = gpiod_direction_input(gpios[i].desc);

		if (ret)

			goto err;



		INIT_DELAYED_WORK(&gpios[i].work, gpio_work);

		gpios[i].jack = jack;



		ret = request_any_context_irq(gpio_to_irq(gpios[i].gpio),

		ret = request_any_context_irq(gpiod_to_irq(gpios[i].desc),

					      gpio_handler,

					      IRQF_TRIGGER_RISING |

					      IRQF_TRIGGER_FALLING,
@@ -331,7 +334,7 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, 
			goto err;



		if (gpios[i].wake) {

			ret = irq_set_irq_wake(gpio_to_irq(gpios[i].gpio), 1);

			ret = irq_set_irq_wake(gpiod_to_irq(gpios[i].desc), 1);

			if (ret != 0)

				dev_err(jack->codec->dev, "ASoC: "

				  "Failed to mark GPIO %d as wake source: %d\n",
@@ -339,7 +342,7 @@ int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, 
		}



		/* Expose GPIO value over sysfs for diagnostic purposes */

		gpio_export(gpios[i].gpio, false);

		gpiod_export(gpios[i].desc, false);



		/* Update initial jack status */

		schedule_delayed_work(&gpios[i].work,
@@ -372,10 +375,10 @@ void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, 
	int i;



	for (i = 0; i < count; i++) {

		gpio_unexport(gpios[i].gpio);

		free_irq(gpio_to_irq(gpios[i].gpio), &gpios[i]);

		gpiod_unexport(gpios[i].desc);

		free_irq(gpiod_to_irq(gpios[i].desc), &gpios[i]);

		cancel_delayed_work_sync(&gpios[i].work);

		gpio_free(gpios[i].gpio);

		gpiod_put(gpios[i].desc);

		gpios[i].jack = NULL;

	}

}

CRA Git | Maintained and supported by SUSTech CRA and CCSE