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-rw-r--r--include/asm-generic/gpio.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 1ebb9c7..128249e 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -29,6 +29,9 @@
* Request a GPIO. This should be called before any of the other functions
* are used on this GPIO.
*
+ * Note: With driver model, the label is allocated so there is no need for
+ * the caller to preserve it.
+ *
* @param gp GPIO number
* @param label User label for this GPIO
* @return 0 if ok, -1 on error
@@ -157,11 +160,14 @@ struct dm_gpio_ops {
* @gpio_base: Base GPIO number for this device. For the first active device
* this will be 0; the numbering for others will follow sequentially so that
* @gpio_base for device 1 will equal the number of GPIOs in device 0.
+ * @name: Array of pointers to the name for each GPIO in this bank. The
+ * value of the pointer will be NULL if the GPIO has not been claimed.
*/
struct gpio_dev_priv {
const char *bank_name;
unsigned gpio_count;
unsigned gpio_base;
+ char **name;
};
/* Access the GPIO operations for a device */