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authorTom Rini <[email protected]>2019-07-29 11:51:17 -0400
committerTom Rini <[email protected]>2019-07-29 11:51:17 -0400
commit2d64a0f7e952f54375702fb2b854461e402ded9d (patch)
tree591a1592b29de743bb52895ebb098ebc8b00f57a /include/asm-generic
parent92430b8fc8aac3b4ab92e9ca8a09d83c4788c609 (diff)
parentf043dc28e3cce115089fb9ab86bc6f4bc4a8a882 (diff)
Merge branch '2019-07-29-master-imports'
- Assorted bug fixes
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/gpio.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 37f71e5708e..d6cf18744fd 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -352,9 +352,10 @@ int dm_gpio_lookup_name(const char *name, struct gpio_desc *desc);
* gpio_hog_lookup_name() - Look up a named GPIO and return the gpio descr.
*
* @name: Name to look up
- * @return: Returns gpio_desc for gpio
+ * @desc: Returns GPIO description, on success, else NULL
+ * @return: Returns 0 if OK, else -ENODEV
*/
-struct gpio_desc *gpio_hog_lookup_name(const char *name);
+int gpio_hog_lookup_name(const char *name, struct gpio_desc **desc);
/**
* gpio_hog_probe_all() - probe all gpio devices with
@@ -523,12 +524,13 @@ int gpio_request_list_by_name_nodev(ofnode node, const char *list_name,
* gpio_dev_request_index() - request single GPIO from gpio device
*
* @dev: GPIO device
- * @nodename: Name of node
+ * @nodename: Name of node for which gpio gets requested, used
+ * for the gpio label name
* @list_name: Name of GPIO list (e.g. "board-id-gpios")
* @index: Index number of the GPIO in that list use request (0=first)
* @flags: GPIOD_* flags
- * @dtflags: GPIO flags read from DT
- * @desc: GPIO descriotor filled from this function
+ * @dtflags: GPIO flags read from DT defined see GPIOD_*
+ * @desc: returns GPIO descriptor filled from this function
* @return: return value from gpio_request_tail()
*/
int gpio_dev_request_index(struct udevice *dev, const char *nodename,