diff options
| author | Andres Salomon <dilinger@queued.net> | 2010-10-10 21:49:45 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-10-12 21:57:53 -0600 |
| commit | f90c34bd658d240cb5ebc5fe0a17796e590c6ec8 (patch) | |
| tree | 02e8243910e156d3af4a14bd9be63dd829d07576 /include/linux/of_pdt.h | |
| parent | 3cfc535c5df8122af1258ae05aaf2770c033425d (diff) | |
of/promtree: no longer call prom_ functions directly; use an ops structure
Rather than assuming an architecture defines prom_getchild and friends,
define an ops struct with hooks for the various prom functions that
pdt.c needs. This ops struct is filled in by the
arch-(and sometimes firmware-)specific code, and passed to
of_pdt_build_devicetree.
Update sparc code to define the ops struct as well.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux/of_pdt.h')
| -rw-r--r-- | include/linux/of_pdt.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/include/linux/of_pdt.h b/include/linux/of_pdt.h index c0a8774e45d0..303c5ffae9b4 100644 --- a/include/linux/of_pdt.h +++ b/include/linux/of_pdt.h @@ -13,10 +13,28 @@ #ifndef _LINUX_OF_PDT_H #define _LINUX_OF_PDT_H +/* overridable operations for calling into the PROM */ +struct of_pdt_ops { + /* + * buf should be 32 bytes; return 0 on success. + * If prev is NULL, the first property will be returned. + */ + int (*nextprop)(phandle node, char *prev, char *buf); + + /* for both functions, return proplen on success; -1 on error */ + int (*getproplen)(phandle node, const char *prop); + int (*getproperty)(phandle node, const char *prop, char *buf, + int bufsize); + + /* phandles are 0 if no child or sibling exists */ + phandle (*getchild)(phandle parent); + phandle (*getsibling)(phandle node); +}; + extern void *prom_early_alloc(unsigned long size); /* for building the device tree */ -extern void of_pdt_build_devicetree(phandle root_node); +extern void of_pdt_build_devicetree(phandle root_node, struct of_pdt_ops *ops); extern void (*prom_build_more)(struct device_node *dp, struct device_node ***nextp); |