From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: [RFC PATCH 2/2] of: add initcall with match boilerplate helpers Date: Wed, 30 Oct 2013 01:12:51 -0500 Message-ID: <1383113571-13029-3-git-send-email-robherring2@gmail.com> References: <1383113571-13029-1-git-send-email-robherring2@gmail.com> Return-path: In-Reply-To: <1383113571-13029-1-git-send-email-robherring2@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Cc: Grant Likely , Greg Kroah-Hartman , Rob Herring List-Id: devicetree@vger.kernel.org From: Rob Herring Add boilerplate helpers to create initcalls which are conditional on matching on devicetree properties. Cc: Grant Likely Signed-off-by: Rob Herring --- 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