diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2011-08-15 09:28:14 +0200 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-09-22 19:12:10 +0200 |
| commit | 611cad720148c899db5a383c1c676fd820df7023 (patch) | |
| tree | 780adeaa4418b7b1e76d4a3b8fe600f04475c7df /drivers/of/pdt.c | |
| parent | devicetree: Add a registry of vendor prefixes (diff) | |
| download | linux-611cad720148c899db5a383c1c676fd820df7023.tar.xz linux-611cad720148c899db5a383c1c676fd820df7023.zip | |
dt: add of_alias_scan and of_alias_get_id
The patch adds function of_alias_scan to populate a global lookup
table with the properties of 'aliases' node and function
of_alias_get_id for drivers to find alias id from the lookup table.
v3: Split out automatic addition of aliases on id lookup so that it can be
debated separately from the core functionality.
v2: - Add of_chosen/of_aliases populating and of_alias_scan() invocation
for OF_PROMTREE.
- Add locking
- rework parse loop
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/of/pdt.c')
| -rw-r--r-- | drivers/of/pdt.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/of/pdt.c b/drivers/of/pdt.c index 4d87b5dc9284..bc5b3990f6ed 100644 --- a/drivers/of/pdt.c +++ b/drivers/of/pdt.c @@ -229,6 +229,11 @@ static struct device_node * __init of_pdt_build_tree(struct device_node *parent, return ret; } +static void *kernel_tree_alloc(u64 size, u64 align) +{ + return prom_early_alloc(size); +} + void __init of_pdt_build_devicetree(phandle root_node, struct of_pdt_ops *ops) { struct device_node **nextp; @@ -245,4 +250,7 @@ void __init of_pdt_build_devicetree(phandle root_node, struct of_pdt_ops *ops) nextp = &allnodes->allnext; allnodes->child = of_pdt_build_tree(allnodes, of_pdt_prom_ops->getchild(allnodes->phandle), &nextp); + + /* Get pointer to "/chosen" and "/aliasas" nodes for use everywhere */ + of_alias_scan(kernel_tree_alloc); } |