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authorBartosz Golaszewski <brgl@bgdev.pl>2021-12-07 10:34:06 +0100
committerBartosz Golaszewski <brgl@bgdev.pl>2021-12-17 12:26:12 +0100
commitdd61b29207ca4f346fbd9c06bc49f093e3369185 (patch)
tree14d2b0638a5ba9fac724f638379d4172c0ffe366 /include/linux/gpio/machine.h
parentgpio: aspeed-sgpio: Convert aspeed_sgpio.lock to raw_spinlock (diff)
downloadwireguard-linux-dd61b29207ca4f346fbd9c06bc49f093e3369185.tar.xz
wireguard-linux-dd61b29207ca4f346fbd9c06bc49f093e3369185.zip
gpiolib: provide gpiod_remove_hogs()
Currently all users of gpiod_add_hogs() call it only once at system init so there never was any need for a mechanism allowing to remove them. Now the upcoming gpio-sim will need to tear down chips with hogged lines so provide a function that allows to remove hogs. Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/gpio/machine.h')
-rw-r--r--include/linux/gpio/machine.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/gpio/machine.h b/include/linux/gpio/machine.h
index d755e529c1e3..2647dd10b541 100644
--- a/include/linux/gpio/machine.h
+++ b/include/linux/gpio/machine.h
@@ -100,6 +100,7 @@ void gpiod_add_lookup_table(struct gpiod_lookup_table *table);
void gpiod_add_lookup_tables(struct gpiod_lookup_table **tables, size_t n);
void gpiod_remove_lookup_table(struct gpiod_lookup_table *table);
void gpiod_add_hogs(struct gpiod_hog *hogs);
+void gpiod_remove_hogs(struct gpiod_hog *hogs);
#else /* ! CONFIG_GPIOLIB */
static inline
void gpiod_add_lookup_table(struct gpiod_lookup_table *table) {}
@@ -108,6 +109,7 @@ void gpiod_add_lookup_tables(struct gpiod_lookup_table **tables, size_t n) {}
static inline
void gpiod_remove_lookup_table(struct gpiod_lookup_table *table) {}
static inline void gpiod_add_hogs(struct gpiod_hog *hogs) {}
+static inline void gpiod_remove_hogs(struct gpiod_hog *hogs) {}
#endif /* CONFIG_GPIOLIB */
#endif /* __LINUX_GPIO_MACHINE_H */