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| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2017-07-23 19:55:47 +0300 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2017-07-24 09:50:07 -0500 |
| commit | 8832963d89f09e4cef6c1ec62f0082a545baf69d (patch) | |
| tree | 7a9031d163fa5b854339b055d304b4d020796c59 /drivers/of | |
| parent | fda9f5d4a97cedba3174641263a49d82ff3c3469 (diff) | |
| download | linux-stable-8832963d89f09e4cef6c1ec62f0082a545baf69d.tar.gz linux-stable-8832963d89f09e4cef6c1ec62f0082a545baf69d.tar.bz2 linux-stable-8832963d89f09e4cef6c1ec62f0082a545baf69d.zip | |
of: base: use of_property_read_u32()
of_n_{addr|size}_cells() predate of_property_read_u32(), so they have to
basically open-code it. Using the modern DT API saves several LoCs and also
adds some prop sanity checks as a bonus...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/base.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index 5551ac2a9d4c..830f8d2f3594 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -60,14 +60,13 @@ DEFINE_RAW_SPINLOCK(devtree_lock); int of_n_addr_cells(struct device_node *np) { - const __be32 *ip; + u32 cells; do { if (np->parent) np = np->parent; - ip = of_get_property(np, "#address-cells", NULL); - if (ip) - return be32_to_cpup(ip); + if (!of_property_read_u32(np, "#address-cells", &cells)) + return cells; } while (np->parent); /* No #address-cells property for the root node */ return OF_ROOT_NODE_ADDR_CELLS_DEFAULT; @@ -76,14 +75,13 @@ EXPORT_SYMBOL(of_n_addr_cells); int of_n_size_cells(struct device_node *np) { - const __be32 *ip; + u32 cells; do { if (np->parent) np = np->parent; - ip = of_get_property(np, "#size-cells", NULL); - if (ip) - return be32_to_cpup(ip); + if (!of_property_read_u32(np, "#size-cells", &cells)) + return cells; } while (np->parent); /* No #size-cells property for the root node */ return OF_ROOT_NODE_SIZE_CELLS_DEFAULT; |