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pinctrl: Document pin_config_group_get() return codes like pin_config_get() 

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@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Douglas Anderson 2018-07-02 15:59:37 -07:00 committed by Linus Walleij
parent 23ee0f1920
commit 63f3fb8d7c
1 changed files with 2 additions and 1 deletions
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3
include/linux/pinctrl/pinconf.h
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@ -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