From: Rob Herring <[email protected]> Add boilerplate helpers to create initcalls which are conditional on matching on devicetree properties.
Cc: Grant Likely <[email protected]> Signed-off-by: Rob Herring <[email protected]> --- include/linux/of.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/of.h b/include/linux/of.h index f95aee3..a1327c9 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -592,6 +592,18 @@ static inline int of_property_read_u32(const struct device_node *np, s; \ s = of_prop_next_string(prop, s)) +#define of_initcall_match(__func, __lvl, __match) \ +static int __init __func##_init(void) \ +{ \ + if (of_find_matching_node(NULL, __match)) \ + return __func(); \ + else \ + return -ENODEV; \ +} \ +__lvl(__func##_init); + +#define of_module_init_match(__func, __match) of_initcall_match(__func, module_init, __match) + #if defined(CONFIG_PROC_FS) && defined(CONFIG_PROC_DEVICETREE) extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *); extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop); -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
