linux-kernel - [PATCH 08/12] gpio: tps65086: use new GPIO line value setter callbacks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250702-gpiochip-set-rv-gpio-round3-v1-8-0d23be74f71d@linaro.org>
Date: Wed, 02 Jul 2025 11:14:09 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Thierry Reding <thierry.reding@...il.com>, 
 Jonathan Hunter <jonathanh@...dia.com>, Robert Richter <rric@...nel.org>, 
 Aaro Koskinen <aaro.koskinen@....fi>, 
 Andreas Kemnade <andreas@...nade.info>, Kevin Hilman <khilman@...libre.com>, 
 Roger Quadros <rogerq@...nel.org>, Tony Lindgren <tony@...mide.com>
Cc: linux-gpio@...r.kernel.org, linux-tegra@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 08/12] gpio: tps65086: 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/gpio/gpio-tps65086.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/gpio/gpio-tps65086.c b/drivers/gpio/gpio-tps65086.c
index 8f5827554e1e89b2cc2cac0e43521246fc986408..08fa061b73efcffd5f68724ae3fdc54515d45adb 100644
--- a/drivers/gpio/gpio-tps65086.c
+++ b/drivers/gpio/gpio-tps65086.c
@@ -37,10 +37,8 @@ static int tps65086_gpio_direction_output(struct gpio_chip *chip,
 	struct tps65086_gpio *gpio = gpiochip_get_data(chip);
 
 	/* Set the initial value */
-	regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL,
-			   BIT(4 + offset), value ? BIT(4 + offset) : 0);
-
-	return 0;
+	return regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL,
+				  BIT(4 + offset), value ? BIT(4 + offset) : 0);
 }
 
 static int tps65086_gpio_get(struct gpio_chip *chip, unsigned offset)
@@ -55,13 +53,13 @@ static int tps65086_gpio_get(struct gpio_chip *chip, unsigned offset)
 	return val & BIT(4 + offset);
 }
 
-static void tps65086_gpio_set(struct gpio_chip *chip, unsigned offset,
-			      int value)
+static int tps65086_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			     int value)
 {
 	struct tps65086_gpio *gpio = gpiochip_get_data(chip);
 
-	regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL,
-			   BIT(4 + offset), value ? BIT(4 + offset) : 0);
+	return regmap_update_bits(gpio->tps->regmap, TPS65086_GPOCTRL,
+				  BIT(4 + offset), value ? BIT(4 + offset) : 0);
 }
 
 static const struct gpio_chip template_chip = {
@@ -71,7 +69,7 @@ static const struct gpio_chip template_chip = {
 	.direction_input	= tps65086_gpio_direction_input,
 	.direction_output	= tps65086_gpio_direction_output,
 	.get			= tps65086_gpio_get,
-	.set			= tps65086_gpio_set,
+	.set_rv			= tps65086_gpio_set,
 	.base			= -1,
 	.ngpio			= 4,
 	.can_sleep		= true,

-- 
2.48.1