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ASoC: rt5677: Add GPIO .get_direction() callback

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Implement the get_direction callback for the GPIO controller to allow
consumers to query the direction of GPIO pins.

Signed-off-by: Diogo Ivo <diogo.ivo@bootlin.com>
Link: https://patch.msgid.link/20260620-smaug-audio-v1-1-e318acdf5abd@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Diogo Ivo 2026-06-20 15:50:58 +02:00 committed by Mark Brown
parent dc59e4fea9
commit 99e361b2a5
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GPG Key ID: 24D68B725D5487D0
1 changed files with 17 additions and 0 deletions
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17
sound/soc/codecs/rt5677.c
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@ -6,6 +6,7 @@
* Author: Oder Chiou <oder_chiou@realtek.com>
*/
#include <linux/bits.h>
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/fs.h>
@ -4767,6 +4768,21 @@ static int rt5677_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
return rt5677_update_gpio_bits(rt5677, offset, m, v);
}
static int rt5677_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
{
struct rt5677_priv *rt5677 = gpiochip_get_data(chip);
unsigned int shift = RT5677_GPIOx_DIR_SFT + (offset % 5) * 3;
unsigned int bank = offset / 5;
unsigned int reg = bank ? RT5677_GPIO_CTRL3 : RT5677_GPIO_CTRL2;
int ret;
ret = regmap_test_bits(rt5677->regmap, reg, BIT(shift));
if (ret < 0)
return ret;
return ret ? GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
}
/*
* Configures the GPIO as
* 0 - floating
@ -4834,6 +4850,7 @@ static int rt5677_to_irq(struct gpio_chip *chip, unsigned offset)
static const struct gpio_chip rt5677_template_chip = {
.label = RT5677_DRV_NAME,
.owner = THIS_MODULE,
.get_direction = rt5677_gpio_get_direction,
.direction_output = rt5677_gpio_direction_out,
.set = rt5677_gpio_set,
.direction_input = rt5677_gpio_direction_in,