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pinctrl: add function to parse generic pinconfig properties from a dt node

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pinconf_generic_parse_dt_config() takes a node as input and generates an
array of generic pinconfig values from the properties of this node.

As I couldn't find a mechanism to count the number of properties of a node
the function uses internally an array to accept one of parameter and copies
the real present options to a smaller variable at its end.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Heiko Stübner
2013-06-10 21:40:29 +02:00
committed by Linus Walleij
parent 5c0e3580cb
commit 7db9af4b6e
3 changed files with 125 additions and 0 deletions
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6
drivers/pinctrl/pinconf.h
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@@ -123,3 +123,9 @@ static inline void pinconf_generic_dump_config(struct pinctrl_dev *pctldev,
return;
}
#endif
#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_OF)
int pinconf_generic_parse_dt_config(struct device_node *np,
unsigned long **configs,
unsigned int *nconfigs);
#endif