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Mon, 17 Feb 2025 02:39:24 -0800 (PST) From: Bartosz Golaszewski To: Dipen Patel , Linus Walleij Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, timestamp@lists.linux.dev, Bartosz Golaszewski Subject: [PATCH v4 2/2] gpiolib: don't build HTE code with CONFIG_HTE disabled Date: Mon, 17 Feb 2025 11:39:22 +0100 Message-ID: <20250217103922.151047-2-brgl@bgdev.pl> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250217103922.151047-1-brgl@bgdev.pl> References: <20250217103922.151047-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Bartosz Golaszewski Hardware timestamping is only used on tegra186 platforms but we include the code and export the symbols everywhere. Shrink the binary a bit by compiling the relevant functions conditionally. Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski --- Changes in v4: - rebased after fixing conflicts drivers/gpio/gpiolib.c | 2 ++ include/linux/gpio/consumer.h | 36 +++++++++++++++++++++-------------- 2 files changed, 24 insertions(+), 14 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index f261f7893f85..65ca749a1078 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2906,6 +2906,7 @@ int gpiod_direction_output_nonotify(struct gpio_desc *desc, int value) return 0; } +#if IS_ENABLED(CONFIG_HTE) /** * gpiod_enable_hw_timestamp_ns - Enable hardware timestamp in nanoseconds. * @@ -2971,6 +2972,7 @@ int gpiod_disable_hw_timestamp_ns(struct gpio_desc *desc, unsigned long flags) return ret; } EXPORT_SYMBOL_GPL(gpiod_disable_hw_timestamp_ns); +#endif /* CONFIG_HTE */ /** * gpiod_set_config - sets @config for a GPIO diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h index 0dc49b5fca5c..0b2b56199c36 100644 --- a/include/linux/gpio/consumer.h +++ b/include/linux/gpio/consumer.h @@ -114,8 +114,6 @@ int gpiod_get_direction(struct gpio_desc *desc); int gpiod_direction_input(struct gpio_desc *desc); int gpiod_direction_output(struct gpio_desc *desc, int value); int gpiod_direction_output_raw(struct gpio_desc *desc, int value); -int gpiod_enable_hw_timestamp_ns(struct gpio_desc *desc, unsigned long flags); -int gpiod_disable_hw_timestamp_ns(struct gpio_desc *desc, unsigned long flags); /* Value get/set from non-sleeping context */ int gpiod_get_value(const struct gpio_desc *desc); @@ -347,18 +345,6 @@ static inline int gpiod_direction_output_raw(struct gpio_desc *desc, int value) WARN_ON(desc); return -ENOSYS; } -static inline int gpiod_enable_hw_timestamp_ns(struct gpio_desc *desc, - unsigned long flags) -{ - WARN_ON(desc); - return -ENOSYS; -} -static inline int gpiod_disable_hw_timestamp_ns(struct gpio_desc *desc, - unsigned long flags) -{ - WARN_ON(desc); - return -ENOSYS; -} static inline int gpiod_get_value(const struct gpio_desc *desc) { /* GPIO can never have been requested */ @@ -559,6 +545,28 @@ struct gpio_desc *devm_fwnode_gpiod_get_index(struct device *dev, #endif /* CONFIG_GPIOLIB */ +#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_HTE) +int gpiod_enable_hw_timestamp_ns(struct gpio_desc *desc, unsigned long flags); +int gpiod_disable_hw_timestamp_ns(struct gpio_desc *desc, unsigned long flags); +#else +static inline int gpiod_enable_hw_timestamp_ns(struct gpio_desc *desc, + unsigned long flags) +{ + if (!IS_ENABLED(CONFIG_GPIOLIB)) + WARN_ON(desc); + + return -ENOSYS; +} +static inline int gpiod_disable_hw_timestamp_ns(struct gpio_desc *desc, + unsigned long flags) +{ + if (!IS_ENABLED(CONFIG_GPIOLIB)) + WARN_ON(desc); + + return -ENOSYS; +} +#endif /* CONFIG_GPIOLIB && CONFIG_HTE */ + static inline struct gpio_desc *devm_fwnode_gpiod_get(struct device *dev, struct fwnode_handle *fwnode, -- 2.45.2