[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 05/25] dt: add helper for phandle enumeration
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH 05/25] dt: add helper for phandle enumeration |
Date: |
Wed, 30 May 2012 13:00:26 +0200 |
This patch adds a helper to search for a node's phandle by its path. This
is especially useful when the phandle is part of an array, not just a single
cell in which case qemu_devtree_setprop_phandle would be the easy choice.
Signed-off-by: Alexander Graf <address@hidden>
---
device_tree.c | 16 +++++++++++++++-
device_tree.h | 1 +
2 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/device_tree.c b/device_tree.c
index 6cbc5af..6745d17 100644
--- a/device_tree.c
+++ b/device_tree.c
@@ -162,10 +162,24 @@ int qemu_devtree_setprop_string(void *fdt, const char
*node_path,
return r;
}
+uint32_t qemu_devtree_get_phandle(void *fdt, const char *path)
+{
+ uint32_t r;
+
+ r = fdt_get_phandle(fdt, findnode_nofail(fdt, path));
+ if (r <= 0) {
+ fprintf(stderr, "%s: Couldn't get phandle for %s: %s\n", __func__,
+ path, fdt_strerror(r));
+ exit(1);
+ }
+
+ return r;
+}
+
int qemu_devtree_setprop_phandle(void *fdt, const char *node_path,
const char *property, const char *string)
{
- uint32_t phandle = fdt_get_phandle(fdt, findnode_nofail(fdt, string));
+ uint32_t phandle = qemu_devtree_get_phandle(fdt, string);
return qemu_devtree_setprop_cell(fdt, node_path, property, phandle);
}
diff --git a/device_tree.h b/device_tree.h
index 2e87c58..376287a 100644
--- a/device_tree.h
+++ b/device_tree.h
@@ -33,6 +33,7 @@ int qemu_devtree_setprop_string(void *fdt, const char
*node_path,
const char *property, const char *string);
int qemu_devtree_setprop_phandle(void *fdt, const char *node_path,
const char *property, const char *string);
+uint32_t qemu_devtree_get_phandle(void *fdt, const char *path);
int qemu_devtree_nop_node(void *fdt, const char *node_path);
int qemu_devtree_add_subnode(void *fdt, const char *name);
--
1.6.0.2
- [Qemu-devel] [PATCH 00/25] PPC: mpc8544ds: Create device tree dynamically, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 01/25] dt: allow add_subnode to create root subnodes, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 04/25] dt: temporarily disable subtree creation failure check, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 03/25] dt: add helper for phandle references, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 08/25] dt: add helper for 64bit cell adds, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 17/25] PPC: e500: dt: create mpic node dynamically, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 09/25] PPC: e500: require libfdt, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 05/25] dt: add helper for phandle enumeration,
Alexander Graf <=
- [Qemu-devel] [PATCH 20/25] PPC: e500: dt: start with empty device tree, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 10/25] PPC: e500: dt: create memory node dynamically, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 15/25] PPC: e500: dt: create /soc8544 node dynamically, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 02/25] dt: add helpers for 2, 3 and 4 cell adds, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 12/25] PPC: e500: dt: create /hypervisor node dynamically, Alexander Graf, 2012/05/30
- [Qemu-devel] [PATCH 16/25] PPC: e500: dt: create serial nodes dynamically, Alexander Graf, 2012/05/30