From: Mike Ditto <mditto@consentry•com>
To: Mike Ditto <mditto@consentry•com>, linuxppc-dev@ozlabs•org
Subject: [PATCH] powerpc: Add del_node function to allow early boot code to prune inapplicable devices.
Date: Tue, 21 Oct 2008 14:32:29 -0700 [thread overview]
Message-ID: <48FE4A6D.5@consentry.com> (raw)
In-Reply-To: <20081017012604.GA22213@yookeroo.seuss>
Reposting in proper format...
Some platforms have variants that can share most of a flat device tree but need
a few devices selectively pruned at boot time. This adds del_node() to ops.h
to allow access to the existing fdt_del_node().
Signed-off-by: Mike Ditto <mditto@consentry•com>
---
Index: arch/powerpc/boot/ops.h
===================================================================
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 ops.h
--- arch/powerpc/boot/ops.h 11 Oct 2008 02:51:35 -0000 1.1.1.1
+++ arch/powerpc/boot/ops.h 18 Oct 2008 02:06:45 -0000
@@ -40,6 +40,7 @@
const int buflen);
int (*setprop)(const void *phandle, const char *name,
const void *buf, const int buflen);
+ int (*del_node)(const void *phandle);
void *(*get_parent)(const void *phandle);
/* The node must not already exist. */
void *(*create_node)(const void *parent, const char *name);
@@ -124,6 +125,11 @@
return dt_ops.setprop(devp, name, buf, strlen(buf) + 1);
return -1;
+}
+
+static inline int del_node(const void *devp)
+{
+ return dt_ops.del_node ? dt_ops.del_node(devp) : -1;
}
static inline void *get_parent(const char *devp)
Index: arch/powerpc/boot/libfdt-wrapper.c
===================================================================
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 libfdt-wrapper.c
--- arch/powerpc/boot/libfdt-wrapper.c 11 Oct 2008 02:51:35 -0000 1.1.1.1
+++ arch/powerpc/boot/libfdt-wrapper.c 17 Oct 2008 22:08:44 -0000
@@ -105,6 +105,11 @@
return check_err(rc);
}
+static int fdt_wrapper_del_node(const void *devp)
+{
+ return fdt_del_node(fdt, devp_offset(devp));
+}
+
static void *fdt_wrapper_get_parent(const void *devp)
{
return offset_devp(fdt_parent_offset(fdt, devp_offset(devp)));
@@ -173,6 +178,7 @@
dt_ops.create_node = fdt_wrapper_create_node;
dt_ops.find_node_by_prop_value = fdt_wrapper_find_node_by_prop_value;
dt_ops.find_node_by_compatible = fdt_wrapper_find_node_by_compatible;
+ dt_ops.del_node = fdt_wrapper_del_node;
dt_ops.get_path = fdt_wrapper_get_path;
dt_ops.finalize = fdt_wrapper_finalize;
next prev parent reply other threads:[~2008-10-21 21:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-17 0:52 device tree variations Mike Ditto
2008-10-17 1:26 ` David Gibson
2008-10-18 2:14 ` Mike Ditto
2008-10-21 1:49 ` David Gibson
2008-10-21 6:00 ` Benjamin Herrenschmidt
2008-10-21 21:32 ` Mike Ditto [this message]
2008-10-21 23:33 ` [PATCH] powerpc: Add del_node function to allow early boot code to prune inapplicable devices Grant Likely
2008-10-22 0:23 ` Benjamin Herrenschmidt
2008-10-22 0:25 ` Mike Ditto
2008-10-22 0:09 ` David Gibson
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