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[Qemu-devel] [PATCH 35/72] dt: add helper for phandle enumeration
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH 35/72] dt: add helper for phandle enumeration |
Date: |
Sun, 24 Jun 2012 01:06:59 +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>
Reviewed-by: Peter Crosthwaite <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 967c97a..2f127b7 100644
--- a/device_tree.c
+++ b/device_tree.c
@@ -132,11 +132,25 @@ 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 *target_node_path)
{
- uint32_t phandle = fdt_get_phandle(fdt, findnode_nofail(fdt,
target_node_path));
+ uint32_t phandle = qemu_devtree_get_phandle(fdt, target_node_path);
return qemu_devtree_setprop_cell(fdt, node_path, property, phandle);
}
diff --git a/device_tree.h b/device_tree.h
index 754bd2b..36fc9db 100644
--- a/device_tree.h
+++ b/device_tree.h
@@ -25,6 +25,7 @@ int qemu_devtree_setprop_string(void *fdt, const char
*node_path,
int qemu_devtree_setprop_phandle(void *fdt, const char *node_path,
const char *property,
const char *target_node_path);
+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 31/72] dt: allow add_subnode to create root subnodes, (continued)
- [Qemu-devel] [PATCH 31/72] dt: allow add_subnode to create root subnodes, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 33/72] dt: add helper for phandle references, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 29/72] spapr: Add "memop" hypercall, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 32/72] dt: add helpers for multi-cell adds, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 01/72] ppc: Fix coding style in op_helper.c, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 08/72] ppc: Split integer and vector ops, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 38/72] dt: add helper for 64bit cell adds, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 34/72] dt: temporarily disable subtree creation failure check, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 40/72] PPC: e500: dt: create memory node dynamically, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 41/72] PPC: e500: dt: create /cpus node dynamically, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 35/72] dt: add helper for phandle enumeration,
Alexander Graf <=
- [Qemu-devel] [PATCH 42/72] PPC: e500: dt: create /hypervisor node dynamically, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 39/72] PPC: e500: require libfdt, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 47/72] PPC: e500: dt: create mpic node dynamically, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 46/72] PPC: e500: dt: create serial nodes dynamically, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 45/72] PPC: e500: dt: create /soc8544 node dynamically, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 44/72] PPC: e500: dt: create /chosen node dynamically, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 36/72] dt: add helper for empty dt creation, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 43/72] PPC: e500: dt: create / node dynamically, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 27/72] pseries: Correctly create ibm, segment-page-sizes property, Alexander Graf, 2012/06/23
- [Qemu-devel] [PATCH 13/72] ppc: Move MMU helpers from helper.c to mmu_helper.c, Alexander Graf, 2012/06/23