linux-kernel - [PATCH 10/12] gpio: octeon: use new GPIO line value setter callbacks

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Message-Id: <20250610-gpiochip-set-rv-gpio-v1-10-3a9a3c1472ff@linaro.org>
Date: Tue, 10 Jun 2025 14:33:20 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Marek Behún <kabel@...nel.org>, 
 Conor Dooley <conor.dooley@...rochip.com>, 
 Daire McNamara <daire.mcnamara@...rochip.com>, 
 Daniel Palmer <daniel@...ngy.jp>, Romain Perier <romain.perier@...il.com>, 
 Avi Fishman <avifishman70@...il.com>, Tomer Maimon <tmaimon77@...il.com>, 
 Tali Perry <tali.perry1@...il.com>, Patrick Venture <venture@...gle.com>, 
 Nancy Yuen <yuenn@...gle.com>, Benjamin Fair <benjaminfair@...gle.com>, 
 Grygorii Strashko <grygorii.strashko@...com>, 
 Santosh Shilimkar <ssantosh@...nel.org>, Kevin Hilman <khilman@...nel.org>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
 openbmc@...ts.ozlabs.org, linux-omap@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 10/12] gpio: octeon: 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-octeon.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-octeon.c b/drivers/gpio/gpio-octeon.c
index afb0e8a791e5a8f1b3029c4ca890a5eb9b8efe44..24966161742a96082baeb850f124c71b894e9057 100644
--- a/drivers/gpio/gpio-octeon.c
+++ b/drivers/gpio/gpio-octeon.c
@@ -47,12 +47,15 @@ static int octeon_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
 	return 0;
 }
 
-static void octeon_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int octeon_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			   int value)
 {
 	struct octeon_gpio *gpio = gpiochip_get_data(chip);
 	u64 mask = 1ull << offset;
 	u64 reg = gpio->register_base + (value ? TX_SET : TX_CLEAR);
 	cvmx_write_csr(reg, mask);
+
+	return 0;
 }
 
 static int octeon_gpio_dir_out(struct gpio_chip *chip, unsigned offset,
@@ -105,7 +108,7 @@ static int octeon_gpio_probe(struct platform_device *pdev)
 	chip->direction_input = octeon_gpio_dir_in;
 	chip->get = octeon_gpio_get;
 	chip->direction_output = octeon_gpio_dir_out;
-	chip->set = octeon_gpio_set;
+	chip->set_rv = octeon_gpio_set;
 	err = devm_gpiochip_add_data(&pdev->dev, chip, gpio);
 	if (err)
 		return err;

-- 
2.48.1