1 files changed, 24 insertions, 32 deletions

diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 3ea2cf6b0e6c..a3e181e09636 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -39,14 +39,15 @@ struct seq_file;
  * @ngpio: the number of GPIOs handled by this controller; the last GPIO
  *      handled is (base + ngpio - 1).
  * @desc: array of ngpio descriptors. Private.
- * @can_sleep: flag must be set iff get()/set() methods sleep, as they
- *      must while accessing GPIO expander chips over I2C or SPI
  * @names: if set, must be an array of strings to use as alternative
  *      names for the GPIOs in this chip. Any entry in the array
  *      may be NULL if there is no alias for the GPIO, however the
  *      array must be @ngpio entries long.  A name can include a single printk
  *      format specifier for an unsigned int.  It is substituted by the actual
  *      number of the gpio.
+ * @can_sleep: flag must be set iff get()/set() methods sleep, as they
+ *      must while accessing GPIO expander chips over I2C or SPI
+ * @exported: flags if the gpiochip is exported for use from sysfs. Private.
  *
  * A gpio_chip can help platforms abstract various sources of GPIOs so
  * they can all be accessed through a common programing interface.
@@ -91,8 +92,8 @@ struct gpio_chip {
         u16                     ngpio;
         struct gpio_desc        *desc;
         const char              *const *names;
-        unsigned                can_sleep:1;
-        unsigned                exported:1;
+        bool                    can_sleep;
+        bool                    exported;
 
 #if defined(CONFIG_OF_GPIO)
         /*
@@ -136,59 +137,50 @@ enum gpio_lookup_flags {
 };
 
 /**
- * Lookup table for associating GPIOs to specific devices and functions using
- * platform data.
+ * struct gpiod_lookup - lookup table
+ * @chip_label: name of the chip the GPIO belongs to
+ * @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO
+ * @con_id: name of the GPIO from the device's point of view
+ * @idx: index of the GPIO in case several GPIOs share the same name
+ * @flags: mask of GPIO_* values
+ *
+ * gpiod_lookup is a lookup table for associating GPIOs to specific devices and
+ * functions using platform data.
  */
 struct gpiod_lookup {
-        struct list_head list;
-        /*
-         * name of the chip the GPIO belongs to
-         */
         const char *chip_label;
-        /*
-         * hardware number (i.e. relative to the chip) of the GPIO
-         */
         u16 chip_hwnum;
-        /*
-         * name of device that can claim this GPIO
-         */
-        const char *dev_id;
-        /*
-         * name of the GPIO from the device's point of view
-         */
         const char *con_id;
-        /*
-         * index of the GPIO in case several GPIOs share the same name
-         */
         unsigned int idx;
-        /*
-         * mask of GPIO_* values
-         */
         enum gpio_lookup_flags flags;
 };
 
+struct gpiod_lookup_table {
+        struct list_head list;
+        const char *dev_id;
+        struct gpiod_lookup table[];
+};
+
 /*
  * Simple definition of a single GPIO under a con_id
  */
-#define GPIO_LOOKUP(_chip_label, _chip_hwnum, _dev_id, _con_id, _flags) \
-        GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _dev_id, _con_id, 0, _flags)
+#define GPIO_LOOKUP(_chip_label, _chip_hwnum, _con_id, _flags) \
+        GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _con_id, 0, _flags)
 
 /*
  * Use this macro if you need to have several GPIOs under the same con_id.
  * Each GPIO needs to use a different index and can be accessed using
  * gpiod_get_index()
  */
-#define GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _dev_id, _con_id, _idx, \
-                        _flags)                                           \
+#define GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _con_id, _idx, _flags)  \
 {                                                                         \
         .chip_label = _chip_label,                                        \
         .chip_hwnum = _chip_hwnum,                                        \
-        .dev_id = _dev_id,                                                \
         .con_id = _con_id,                                                \
         .idx = _idx,                                                      \
         .flags = _flags,                                                  \
 }
 
-void gpiod_add_table(struct gpiod_lookup *table, size_t size);
+void gpiod_add_lookup_table(struct gpiod_lookup_table *table);
 
 #endif