Commit 63cdf624 authored by Bartosz Golaszewski's avatar Bartosz Golaszewski
Browse files

gpiolib: don't build HTE code with CONFIG_HTE disabled 



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: default avatarLinus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250217103922.151047-2-brgl@bgdev.pl


Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent dea69f2d

drivers/gpio/gpiolib.c

+2 −0
Original line number Diff line number Diff line
@@ -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

include/linux/gpio/consumer.h

+22 −14
Original line number Diff line number Diff line
@@ -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,