linux-kernel - [PATCH] spi: xcomm: 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-next>] [day] [month] [year] [list]

Message-Id: <20250408-gpiochip-set-rv-spi-v1-1-597660766654@linaro.org>
Date: Tue, 08 Apr 2025 09:39:56 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Mark Brown <broonie@...nel.org>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>
Cc: linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-gpio@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH] spi: xcomm: 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>
---
Commit 98ce1eb1fd87e ("gpiolib: introduce gpio_chip setters that return
values") added new line setter callbacks to struct gpio_chip. They allow
to indicate failures to callers. We're in the process of converting all
GPIO controllers to using them before removing the old ones.
---
 drivers/spi/spi-xcomm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-xcomm.c b/drivers/spi/spi-xcomm.c
index 3bd0149d8f4e..1a40c4866ce1 100644
--- a/drivers/spi/spi-xcomm.c
+++ b/drivers/spi/spi-xcomm.c
@@ -44,8 +44,8 @@ struct spi_xcomm {
 	u8 buf[63];
 };
 
-static void spi_xcomm_gpio_set_value(struct gpio_chip *chip,
-				     unsigned int offset, int val)
+static int spi_xcomm_gpio_set_value(struct gpio_chip *chip,
+				    unsigned int offset, int val)
 {
 	struct spi_xcomm *spi_xcomm = gpiochip_get_data(chip);
 	unsigned char buf[2];
@@ -53,7 +53,7 @@ static void spi_xcomm_gpio_set_value(struct gpio_chip *chip,
 	buf[0] = SPI_XCOMM_CMD_GPIO_SET;
 	buf[1] = !!val;
 
-	i2c_master_send(spi_xcomm->i2c, buf, 2);
+	return i2c_master_send(spi_xcomm->i2c, buf, 2);
 }
 
 static int spi_xcomm_gpio_get_direction(struct gpio_chip *chip,
@@ -70,7 +70,7 @@ static int spi_xcomm_gpio_add(struct spi_xcomm *spi_xcomm)
 		return 0;
 
 	spi_xcomm->gc.get_direction = spi_xcomm_gpio_get_direction;
-	spi_xcomm->gc.set = spi_xcomm_gpio_set_value;
+	spi_xcomm->gc.set_rv = spi_xcomm_gpio_set_value;
 	spi_xcomm->gc.can_sleep = 1;
 	spi_xcomm->gc.base = -1;
 	spi_xcomm->gc.ngpio = 1;

---
base-commit: 0af2f6be1b4281385b618cb86ad946eded089ac8
change-id: 20250327-gpiochip-set-rv-spi-72c019332f47

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>