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Tue, 08 Apr 2025 00:42:05 -0700 (PDT) Received: from [127.0.1.1] ([2a01:cb1d:dc:7e00:2adf:eaae:f6ea:1a73]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-39c3009644dsm13876928f8f.6.2025.04.08.00.42.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Apr 2025 00:42:04 -0700 (PDT) From: Bartosz Golaszewski Date: Tue, 08 Apr 2025 09:42:01 +0200 Subject: [PATCH 2/2] serial: sc16is7xx: use new GPIO line value setter callbacks Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250408-gpiochip-set-rv-tty-v1-2-fb49444827d4@linaro.org> References: <20250408-gpiochip-set-rv-tty-v1-0-fb49444827d4@linaro.org> In-Reply-To: <20250408-gpiochip-set-rv-tty-v1-0-fb49444827d4@linaro.org> To: Greg Kroah-Hartman , Jiri Slaby , Linus Walleij , Bartosz Golaszewski Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-gpio@vger.kernel.org, Bartosz Golaszewski X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; 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a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 From: Bartosz Golaszewski 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 --- drivers/tty/serial/sc16is7xx.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 560f45ed19ae..5ea8aadb6e69 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1333,13 +1333,16 @@ static int sc16is7xx_gpio_get(struct gpio_chip *chip, unsigned offset) return !!(val & BIT(offset)); } -static void sc16is7xx_gpio_set(struct gpio_chip *chip, unsigned offset, int val) +static int sc16is7xx_gpio_set(struct gpio_chip *chip, unsigned int offset, + int val) { struct sc16is7xx_port *s = gpiochip_get_data(chip); struct uart_port *port = &s->p[0].port; sc16is7xx_port_update(port, SC16IS7XX_IOSTATE_REG, BIT(offset), val ? BIT(offset) : 0); + + return 0; } static int sc16is7xx_gpio_direction_input(struct gpio_chip *chip, @@ -1422,7 +1425,7 @@ static int sc16is7xx_setup_gpio_chip(struct sc16is7xx_port *s) s->gpio.direction_input = sc16is7xx_gpio_direction_input; s->gpio.get = sc16is7xx_gpio_get; s->gpio.direction_output = sc16is7xx_gpio_direction_output; - s->gpio.set = sc16is7xx_gpio_set; + s->gpio.set_rv = sc16is7xx_gpio_set; s->gpio.base = -1; s->gpio.ngpio = s->devtype->nr_gpio; s->gpio.can_sleep = 1;