From: Trent Piepho <tpiepho@kymetacorp.com>
To: barebox <barebox@lists.infradead.org>
Subject: [PATCH 2/2] of: Add of_property_for_each_phandle() iterator
Date: Sat, 19 Dec 2015 00:18:34 +0000 [thread overview]
Message-ID: <1450484315.26955.230.camel@rtred1test09.kymeta.local> (raw)
In-Reply-To: <1450484040.26955.228.camel@rtred1test09.kymeta.local>
This is like of_property_for_each_{string,u32} but loops over a list
of phandles instead of strings or ints.
Returns the node the handle points to as that's generally more useful
than the handle value itself.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
---
include/of.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/include/of.h b/include/of.h
index e65a8e8..18c92d7 100644
--- a/include/of.h
+++ b/include/of.h
@@ -736,6 +736,17 @@ static inline int of_property_read_u32(const struct device_node *np,
s; \
s = of_prop_next_string(prop, s))
+/*
+ * struct device_node *n;
+ *
+ * of_property_for_each_phandle(np, root, "propname", n)
+ * printk("phandle points to: %s\n", n->full_name);
+ */
+#define of_property_for_each_phandle(np, root, propname, n) \
+ for (int _i = 0; \
+ (n = of_parse_phandle_from(np, root, propname, _i));\
+ _i++)
+
static inline int of_property_write_u8(struct device_node *np,
const char *propname, u8 value)
{
--
1.8.3.1
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next prev parent reply other threads:[~2015-12-19 0:18 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-19 0:13 [PATCH 1/2] of: Add for_each_compatible_node_from iterator Trent Piepho
2015-12-19 0:18 ` Trent Piepho [this message]
2016-01-04 8:32 ` Sascha Hauer
2016-01-04 19:01 ` [PATCH 1/2] OF: fix typo in for_each_compatible_node() Trent Piepho
2016-01-05 7:49 ` Sascha Hauer
2016-01-04 19:02 ` [PATCH 2/2] OF: Fix fixups to fix Linux DT instead of Barebox DT Trent Piepho
2016-01-05 7:50 ` Sascha Hauer
2016-01-04 19:07 ` [PATCH 1/2] of: Add for_each_compatible_node_from iterator Trent Piepho
2016-01-05 7:58 ` Sascha Hauer
2016-01-05 8:05 ` Yegor Yefremov
2016-01-05 8:20 ` Sascha Hauer
2016-01-05 8:30 ` Yegor Yefremov
2016-01-05 18:58 ` Trent Piepho
2016-01-07 7:34 ` Sascha Hauer
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