[PATCH v2 5/6] iio: amplifiers: ad8366: consume enable gpio
From: Rodrigo Alencar via B4 Relay
Date: Mon Jan 26 2026 - 09:02:30 EST
From: Rodrigo Alencar <rodrigo.alencar@xxxxxxxxxx>
Some parts may consume enable GPIO to enable serial mode
(HMC1119's and HMC792A P/S pin) or powerup the device
(e.g. ADA4961's PWUP pin).
Co-developed-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
Signed-off-by: Rodrigo Alencar <rodrigo.alencar@xxxxxxxxxx>
---
drivers/iio/amplifiers/ad8366.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c
index 134188db2e15..9ad6a628376c 100644
--- a/drivers/iio/amplifiers/ad8366.c
+++ b/drivers/iio/amplifiers/ad8366.c
@@ -41,6 +41,7 @@ struct ad8366_state {
struct spi_device *spi;
struct mutex lock; /* protect sensor state */
struct gpio_desc *reset_gpio;
+ struct gpio_desc *enable_gpio;
unsigned char ch[2];
const struct ad8366_info *info;
/*
@@ -230,6 +231,11 @@ static int ad8366_probe(struct spi_device *spi)
return dev_err_probe(dev, PTR_ERR(st->reset_gpio),
"Failed to get reset GPIO\n");
+ st->enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_HIGH);
+ if (IS_ERR(st->enable_gpio))
+ return dev_err_probe(dev, PTR_ERR(st->enable_gpio),
+ "Failed to get enable GPIO\n");
+
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->info = &ad8366_info;
indio_dev->modes = INDIO_DIRECT_MODE;
--
2.43.0