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: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250217103922.151047-2-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index f261f7893f85194467588e19e672ca03a6b5fd6d..65ca749a10782d64d542d3c34557c62a0ea8614f 100644 (file)
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2906,6 +2906,7 @@ set_output_flag:
        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 0dc49b5fca5c780eba4da005646cdc1ae17b22e6..0b2b56199c364382bf17088f1cbbbe7cdfd430cd 100644 (file)
--- 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,