dm: gpio: Add error handling and a function to claim vector GPIOs

[karo-tx-uboot.git] / include / asm-generic / gpio.h

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index e728c1e776e2a6da2206b4c64ab83f88381dd2f3..acd2993efc3daf509f26eeda20dfe42b4a564b75 100644 (file)
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -348,15 +348,24 @@ int gpio_lookup_name(const char *name, struct udevice **devp,
                     unsigned int *offsetp, unsigned int *gpiop);
 
 /**
- * get_gpios() - Turn the values of a list of GPIOs into an integer
+ * gpio_get_values_as_int() - Turn the values of a list of GPIOs into an int
  *
  * This puts the value of the first GPIO into bit 0, the second into bit 1,
  * etc. then returns the resulting integer.
  *
  * @gpio_list: List of GPIOs to collect
- * @return resulting integer value
+ * @return resulting integer value, or -ve on error
  */
-unsigned gpio_get_values_as_int(const int *gpio_list);
+int gpio_get_values_as_int(const int *gpio_list);
+
+/**
+ * gpio_claim_vector() - claim a number of GPIOs for input
+ *
+ * @gpio_num_array:    array of gpios to claim, terminated by -1
+ * @fmt:               format string for GPIO names, e.g. "board_id%d"
+ * @return 0 if OK, -ve on error
+ */
+int gpio_claim_vector(const int *gpio_num_array, const char *fmt);
 
 /**
  * gpio_request_by_name() - Locate and request a GPIO by name