[PATCH 1/3] pinctrl: Document pin_config_group_get() return codes like pin_config_get()

From: Douglas Anderson
Date: Mon Jul 02 2018 - 19:00:11 EST


The pinconf_generic_dump_one() function makes the assumption that
pin_config_group_get() should return -EINVAL and -ENOTSUPP just like
pin_config_get() does. Document that so it's more obvious.

Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
---

include/linux/pinctrl/pinconf.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/pinctrl/pinconf.h b/include/linux/pinctrl/pinconf.h
index 09eb80f2574a..8dd85d302b90 100644
--- a/include/linux/pinctrl/pinconf.h
+++ b/include/linux/pinctrl/pinconf.h
@@ -28,7 +28,8 @@ struct seq_file;
* is not available on this controller this should return -ENOTSUPP
* and if it is available but disabled it should return -EINVAL
* @pin_config_set: configure an individual pin
- * @pin_config_group_get: get configurations for an entire pin group
+ * @pin_config_group_get: get configurations for an entire pin group; should
+ * return -ENOTSUPP and -EINVAL using the same rules as pin_config_get.
* @pin_config_group_set: configure all pins in a group
* @pin_config_dbg_parse_modify: optional debugfs to modify a pin configuration
* @pin_config_dbg_show: optional debugfs display hook that will provide
--
2.18.0.399.gad0ab374a1-goog