Re: [RFC v3 PATCH 1/5] of: Add standard property for poweroff capability
From: Grant Likely <hidden>
Date: 2014-10-15 12:41:47
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On Tue, 14 Oct 2014 06:31:09 +0000 , Romain Perier [off-list ref] wrote:
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: Romain Perier <romain.perier@gmail.com>
Acked-by: Grant Likely <redacted> And same for the documentation patches. g.
quoted hunk ↗ jump to hunk
--- include/linux/of.h | 11 +++++++++++ 1 file changed, 11 insertions(+)diff --git a/include/linux/of.h b/include/linux/of.h index 6545e7a..27b3ba1 100644 --- a/include/linux/of.h +++ b/include/linux/of.h@@ -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 */-- 1.9.1