linux-kernel - [PATCH 10/10] pinctrl: cy8c95x0: use new GPIO line value setter callbacks

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Message-Id: <20250408-gpiochip-set-rv-pinctrl-part1-v1-10-c9d521d7c8c7@linaro.org>
Date: Tue, 08 Apr 2025 09:17:47 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Ludovic Desroches <ludovic.desroches@...rochip.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>, 
 Xianwei Zhao <xianwei.zhao@...ogic.com>, 
 Patrick Rudolph <patrick.rudolph@...ements.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 10/10] pinctrl: cy8c95x0: 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/pinctrl/pinctrl-cy8c95x0.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-cy8c95x0.c b/drivers/pinctrl/pinctrl-cy8c95x0.c
index 3cfbcaee9e65..8a2fd632bdd4 100644
--- a/drivers/pinctrl/pinctrl-cy8c95x0.c
+++ b/drivers/pinctrl/pinctrl-cy8c95x0.c
@@ -742,14 +742,15 @@ static int cy8c95x0_gpio_get_value(struct gpio_chip *gc, unsigned int off)
 	return reg_val ? 1 : 0;
 }
 
-static void cy8c95x0_gpio_set_value(struct gpio_chip *gc, unsigned int off,
-				    int val)
+static int cy8c95x0_gpio_set_value(struct gpio_chip *gc, unsigned int off,
+				   int val)
 {
 	struct cy8c95x0_pinctrl *chip = gpiochip_get_data(gc);
 	u8 port = cypress_get_port(chip, off);
 	u8 bit = cypress_get_pin_mask(chip, off);
 
-	cy8c95x0_regmap_write_bits(chip, CY8C95X0_OUTPUT, port, bit, val ? bit : 0);
+	return cy8c95x0_regmap_write_bits(chip, CY8C95X0_OUTPUT, port, bit,
+					  val ? bit : 0);
 }
 
 static int cy8c95x0_gpio_get_direction(struct gpio_chip *gc, unsigned int off)
@@ -908,12 +909,12 @@ static int cy8c95x0_gpio_get_multiple(struct gpio_chip *gc,
 	return cy8c95x0_read_regs_mask(chip, CY8C95X0_INPUT, bits, mask);
 }
 
-static void cy8c95x0_gpio_set_multiple(struct gpio_chip *gc,
-				       unsigned long *mask, unsigned long *bits)
+static int cy8c95x0_gpio_set_multiple(struct gpio_chip *gc,
+				      unsigned long *mask, unsigned long *bits)
 {
 	struct cy8c95x0_pinctrl *chip = gpiochip_get_data(gc);
 
-	cy8c95x0_write_regs_mask(chip, CY8C95X0_OUTPUT, bits, mask);
+	return cy8c95x0_write_regs_mask(chip, CY8C95X0_OUTPUT, bits, mask);
 }
 
 static int cy8c95x0_add_pin_ranges(struct gpio_chip *gc)
@@ -938,10 +939,10 @@ static int cy8c95x0_setup_gpiochip(struct cy8c95x0_pinctrl *chip)
 	gc->direction_input  = cy8c95x0_gpio_direction_input;
 	gc->direction_output = cy8c95x0_gpio_direction_output;
 	gc->get = cy8c95x0_gpio_get_value;
-	gc->set = cy8c95x0_gpio_set_value;
+	gc->set_rv = cy8c95x0_gpio_set_value;
 	gc->get_direction = cy8c95x0_gpio_get_direction;
 	gc->get_multiple = cy8c95x0_gpio_get_multiple;
-	gc->set_multiple = cy8c95x0_gpio_set_multiple;
+	gc->set_multiple_rv = cy8c95x0_gpio_set_multiple;
 	gc->set_config = gpiochip_generic_config;
 	gc->can_sleep = true;
 	gc->add_pin_ranges = cy8c95x0_add_pin_ranges;

-- 
2.45.2