Commit a4b4e046 authored by Romain Perier's avatar Romain Perier Committed by Mark Brown
Browse files

of: Add standard property for poweroff capability



Several drivers create their own devicetree property when they register
poweroff capabilities. This is for example the case for mfd, regulator
or power drivers which define "vendor,system-power-controller" property.
This patch adds support for a standard property "poweroff-source"
which marks the device as able to shutdown the system.

Signed-off-by: default avatarRomain Perier <romain.perier@gmail.com>
Acked-by: default avatarGrant Likely <grant.likely@linaro.org>
Signed-off-by: Mark Brown's avatarMark Brown <broonie@kernel.org>
parent f114040e
......@@ -866,4 +866,15 @@ static inline int of_changeset_update_property(struct of_changeset *ocs,
/* CONFIG_OF_RESOLVE api */
extern int of_resolve_phandles(struct device_node *tree);
/**
* of_system_has_poweroff_source - Tells if poweroff-source is found for device_node
* @np: Pointer to the given device_node
*
* return true if present false otherwise
*/
static inline bool of_system_has_poweroff_source(const struct device_node *np)
{
return of_property_read_bool(np, "poweroff-source");
}
#endif /* _LINUX_OF_H */
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