linux-kernel - [PATCH 10/12] gpio: tps65218: 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-v1-10-0d23be74f71d@linaro.org>
Date: Wed, 02 Jul 2025 11:14:11 +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 10/12] gpio: tps65218: 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-tps65218.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/gpio/gpio-tps65218.c b/drivers/gpio/gpio-tps65218.c
index 68e4f0a19f4eb945b33e5992fdf30a29a40bfc1e..49cd7754ed053bcdbf25a4e51e227287257a5f03 100644
--- a/drivers/gpio/gpio-tps65218.c
+++ b/drivers/gpio/gpio-tps65218.c
@@ -34,29 +34,28 @@ static int tps65218_gpio_get(struct gpio_chip *gc, unsigned offset)
 	return !!(val & (TPS65218_ENABLE2_GPIO1 << offset));
 }
 
-static void tps65218_gpio_set(struct gpio_chip *gc, unsigned offset,
-			      int value)
+static int tps65218_gpio_set(struct gpio_chip *gc, unsigned int offset,
+			     int value)
 {
 	struct tps65218_gpio *tps65218_gpio = gpiochip_get_data(gc);
 	struct tps65218 *tps65218 = tps65218_gpio->tps65218;
 
 	if (value)
-		tps65218_set_bits(tps65218, TPS65218_REG_ENABLE2,
-				  TPS65218_ENABLE2_GPIO1 << offset,
-				  TPS65218_ENABLE2_GPIO1 << offset,
-				  TPS65218_PROTECT_L1);
-	else
-		tps65218_clear_bits(tps65218, TPS65218_REG_ENABLE2,
-				    TPS65218_ENABLE2_GPIO1 << offset,
-				    TPS65218_PROTECT_L1);
+		return tps65218_set_bits(tps65218, TPS65218_REG_ENABLE2,
+					 TPS65218_ENABLE2_GPIO1 << offset,
+					 TPS65218_ENABLE2_GPIO1 << offset,
+					 TPS65218_PROTECT_L1);
+
+	return tps65218_clear_bits(tps65218, TPS65218_REG_ENABLE2,
+				   TPS65218_ENABLE2_GPIO1 << offset,
+				   TPS65218_PROTECT_L1);
 }
 
 static int tps65218_gpio_output(struct gpio_chip *gc, unsigned offset,
 				int value)
 {
 	/* Only drives GPOs */
-	tps65218_gpio_set(gc, offset, value);
-	return 0;
+	return tps65218_gpio_set(gc, offset, value);
 }
 
 static int tps65218_gpio_request(struct gpio_chip *gc, unsigned offset)
@@ -170,7 +169,7 @@ static const struct gpio_chip template_chip = {
 	.request		= tps65218_gpio_request,
 	.direction_output	= tps65218_gpio_output,
 	.get			= tps65218_gpio_get,
-	.set			= tps65218_gpio_set,
+	.set_rv			= tps65218_gpio_set,
 	.set_config		= tps65218_gpio_set_config,
 	.can_sleep		= true,
 	.ngpio			= 3,

-- 
2.48.1