linux-kernel - [PATCH 6/7] iio: addac: ad74413r: use new GPIO line value setter callbacks

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Message-Id: <20250407-gpiochip-set-rv-iio-v1-6-8431b003a145@linaro.org>
Date: Mon, 07 Apr 2025 09:18:14 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Lars-Peter Clausen <lars@...afoo.de>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Jonathan Cameron <jic23@...nel.org>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Cosmin Tanislav <cosmin.tanislav@...log.com>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-gpio@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 6/7] iio: addac: ad74413r: use new GPIO line value setter
 callbacks

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/iio/addac/ad74413r.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/iio/addac/ad74413r.c b/drivers/iio/addac/ad74413r.c
index f14d12b03da6..adfa14c4b06f 100644
--- a/drivers/iio/addac/ad74413r.c
+++ b/drivers/iio/addac/ad74413r.c
@@ -276,8 +276,8 @@ static int ad74413r_set_comp_drive_strength(struct ad74413r_state *st,
 }
 
 
-static void ad74413r_gpio_set(struct gpio_chip *chip,
-			      unsigned int offset, int val)
+static int ad74413r_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			     int val)
 {
 	struct ad74413r_state *st = gpiochip_get_data(chip);
 	unsigned int real_offset = st->gpo_gpio_offsets[offset];
@@ -286,16 +286,16 @@ static void ad74413r_gpio_set(struct gpio_chip *chip,
 	ret = ad74413r_set_gpo_config(st, real_offset,
 				      AD74413R_GPO_CONFIG_LOGIC);
 	if (ret)
-		return;
+		return ret;
 
-	regmap_update_bits(st->regmap, AD74413R_REG_GPO_CONFIG_X(real_offset),
-			   AD74413R_GPO_CONFIG_DATA_MASK,
-			   val ? AD74413R_GPO_CONFIG_DATA_MASK : 0);
+	return regmap_update_bits(st->regmap,
+				  AD74413R_REG_GPO_CONFIG_X(real_offset),
+				  AD74413R_GPO_CONFIG_DATA_MASK,
+				  val ? AD74413R_GPO_CONFIG_DATA_MASK : 0);
 }
 
-static void ad74413r_gpio_set_multiple(struct gpio_chip *chip,
-				       unsigned long *mask,
-				       unsigned long *bits)
+static int ad74413r_gpio_set_multiple(struct gpio_chip *chip,
+				      unsigned long *mask, unsigned long *bits)
 {
 	struct ad74413r_state *st = gpiochip_get_data(chip);
 	unsigned long real_mask = 0;
@@ -309,15 +309,15 @@ static void ad74413r_gpio_set_multiple(struct gpio_chip *chip,
 		ret = ad74413r_set_gpo_config(st, real_offset,
 			AD74413R_GPO_CONFIG_LOGIC_PARALLEL);
 		if (ret)
-			return;
+			return ret;
 
 		real_mask |= BIT(real_offset);
 		if (*bits & offset)
 			real_bits |= BIT(real_offset);
 	}
 
-	regmap_update_bits(st->regmap, AD74413R_REG_GPO_PAR_DATA,
-			   real_mask, real_bits);
+	return regmap_update_bits(st->regmap, AD74413R_REG_GPO_PAR_DATA,
+				  real_mask, real_bits);
 }
 
 static int ad74413r_gpio_get(struct gpio_chip *chip, unsigned int offset)
@@ -1424,8 +1424,8 @@ static int ad74413r_probe(struct spi_device *spi)
 		st->gpo_gpiochip.ngpio = st->num_gpo_gpios;
 		st->gpo_gpiochip.parent = st->dev;
 		st->gpo_gpiochip.can_sleep = true;
-		st->gpo_gpiochip.set = ad74413r_gpio_set;
-		st->gpo_gpiochip.set_multiple = ad74413r_gpio_set_multiple;
+		st->gpo_gpiochip.set_rv = ad74413r_gpio_set;
+		st->gpo_gpiochip.set_multiple_rv = ad74413r_gpio_set_multiple;
 		st->gpo_gpiochip.set_config = ad74413r_gpio_set_gpo_config;
 		st->gpo_gpiochip.get_direction =
 			ad74413r_gpio_get_gpo_direction;

-- 
2.45.2