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([12.186.190.1]) by smtp.gmail.com with ESMTPSA id mn16-20020a0562145ed000b00670a8921170sm658781qvb.112.2023.11.15.08.50.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Nov 2023 08:50:04 -0800 (PST) From: Bartosz Golaszewski To: Linus Walleij , Andy Shevchenko Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH 1/3] gpiolib: provide gpio_devie_get_label() Date: Wed, 15 Nov 2023 17:49:59 +0100 Message-Id: <20231115165001.2932350-2-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231115165001.2932350-1-brgl@bgdev.pl> References: <20231115165001.2932350-1-brgl@bgdev.pl> MIME-Version: 1.0 X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Wed, 15 Nov 2023 08:50:31 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1782649526585705571 X-GMAIL-MSGID: 1782649526585705571 From: Bartosz Golaszewski Provide a getter for the GPIO device label string so that users don't have to dereference struct gpio_chip directly. Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpiolib.c | 14 ++++++++++++++ include/linux/gpio/driver.h | 1 + 2 files changed, 15 insertions(+) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 95d2a7b2ea3e..a5faaea6915d 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -254,6 +254,20 @@ int gpio_device_get_base(struct gpio_device *gdev) } EXPORT_SYMBOL_GPL(gpio_device_get_base); +/** + * gpio_device_get_label() - Get the label of this GPIO device + * @gdev: GPIO device + * + * Returns: + * Pointer to the string containing the GPIO device label. The string's + * lifetime is tied to that of the underlying GPIO device. + */ +const char *gpio_device_get_label(struct gpio_device *gdev) +{ + return gdev->label; +} +EXPORT_SYMBOL(gpio_device_get_label); + /** * gpio_device_get_chip() - Get the gpio_chip implementation of this GPIO device * @gdev: GPIO device diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 0aed62f0c633..100c329dc986 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -786,6 +786,7 @@ struct gpio_device *gpiod_to_gpio_device(struct gpio_desc *desc); /* struct gpio_device getters */ int gpio_device_get_base(struct gpio_device *gdev); +const char *gpio_device_get_label(struct gpio_device *gdev); #else /* CONFIG_GPIOLIB */