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Diffstat (limited to 'include/linux/gpio/machine.h')
-rw-r--r--include/linux/gpio/machine.h20
1 files changed, 17 insertions, 3 deletions
diff --git a/include/linux/gpio/machine.h b/include/linux/gpio/machine.h
index 781a053abbb9..44e5f162973e 100644
--- a/include/linux/gpio/machine.h
+++ b/include/linux/gpio/machine.h
@@ -3,7 +3,6 @@
#define __LINUX_GPIO_MACHINE_H
#include <linux/types.h>
-#include <linux/list.h>
enum gpio_lookup_flags {
GPIO_ACTIVE_HIGH = (0 << 0),
@@ -14,6 +13,7 @@ enum gpio_lookup_flags {
GPIO_TRANSITORY = (1 << 3),
GPIO_PULL_UP = (1 << 4),
GPIO_PULL_DOWN = (1 << 5),
+ GPIO_PULL_DISABLE = (1 << 6),
GPIO_LOOKUP_FLAGS_DEFAULT = GPIO_ACTIVE_HIGH | GPIO_PERSISTENT,
};
@@ -64,6 +64,18 @@ struct gpiod_hog {
};
/*
+ * Helper for lookup tables with just one single lookup for a device.
+ */
+#define GPIO_LOOKUP_SINGLE(_name, _dev_id, _key, _chip_hwnum, _con_id, _flags) \
+static struct gpiod_lookup_table _name = { \
+ .dev_id = _dev_id, \
+ .table = { \
+ GPIO_LOOKUP(_key, _chip_hwnum, _con_id, _flags), \
+ {}, \
+ }, \
+}
+
+/*
* Simple definition of a single GPIO under a con_id
*/
#define GPIO_LOOKUP(_key, _chip_hwnum, _con_id, _flags) \
@@ -75,7 +87,7 @@ struct gpiod_hog {
* gpiod_get_index()
*/
#define GPIO_LOOKUP_IDX(_key, _chip_hwnum, _con_id, _idx, _flags) \
-{ \
+(struct gpiod_lookup) { \
.key = _key, \
.chip_hwnum = _chip_hwnum, \
.con_id = _con_id, \
@@ -87,7 +99,7 @@ struct gpiod_hog {
* Simple definition of a single GPIO hog in an array.
*/
#define GPIO_HOG(_chip_label, _chip_hwnum, _line_name, _lflags, _dflags) \
-{ \
+(struct gpiod_hog) { \
.chip_label = _chip_label, \
.chip_hwnum = _chip_hwnum, \
.line_name = _line_name, \
@@ -100,6 +112,7 @@ 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 +121,7 @@ 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 */