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authorNicholas Piggin <npiggin@gmail.com>2017-04-18 22:12:18 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2017-05-09 15:55:58 +0300
commitea47dd191d543f81e0912b5dc0471b48346b016e (patch)
tree2b3c5bcee2b645be83f5be38a025041817194b06 /include/linux/of_fdt.h
parent0b382fb3d905e2754302cf9097ffca13afb8b73f (diff)
downloadlinux-ea47dd191d543f81e0912b5dc0471b48346b016e.tar.xz
of/fdt: introduce of_scan_flat_dt_subnodes and of_get_flat_dt_phandle
Introduce primitives for FDT parsing. These will be used for powerpc cpufeatures node scanning, which has quite complex structure but should be processed early. Cc: devicetree@vger.kernel.org Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/linux/of_fdt.h')
-rw-r--r--include/linux/of_fdt.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index 271b3fdf0070..1dfbfd0d8040 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -54,6 +54,11 @@ extern char __dtb_end[];
extern int of_scan_flat_dt(int (*it)(unsigned long node, const char *uname,
int depth, void *data),
void *data);
+extern int of_scan_flat_dt_subnodes(unsigned long node,
+ int (*it)(unsigned long node,
+ const char *uname,
+ void *data),
+ void *data);
extern int of_get_flat_dt_subnode_by_name(unsigned long node,
const char *uname);
extern const void *of_get_flat_dt_prop(unsigned long node, const char *name,
@@ -62,6 +67,7 @@ extern int of_flat_dt_is_compatible(unsigned long node, const char *name);
extern int of_flat_dt_match(unsigned long node, const char *const *matches);
extern unsigned long of_get_flat_dt_root(void);
extern int of_get_flat_dt_size(void);
+extern uint32_t of_get_flat_dt_phandle(unsigned long node);
extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,
int depth, void *data);