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powerpc: fsl_soc: Use of_range_to_resource() for "ranges" parsing

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"ranges" is a standard property with common parsing functions. Users
shouldn't be implementing their own parsing of it. Refactor the FSL RapidIO
"ranges" parsing to use of_range_to_resource() instead.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230609183238.1767186-1-robh@kernel.org
This commit is contained in:
Rob Herring 2023-06-09 12:32:38 -06:00 committed by Michael Ellerman
parent f892ac774b
commit be0f9ca024
1 changed files with 3 additions and 11 deletions
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14
arch/powerpc/sysdev/fsl_soc.c
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@ -51,18 +51,10 @@ phys_addr_t get_immrbase(void)
soc = of_find_node_by_type(NULL, "soc");
if (soc) {
int size;
u32 naddr;
const __be32 *prop = of_get_property(soc, "#address-cells", &size);
struct resource res;
if (prop && size == 4)
naddr = be32_to_cpup(prop);
else
naddr = 2;
prop = of_get_property(soc, "ranges", &size);
if (prop)
immrbase = of_translate_address(soc, prop + naddr);
if (!of_range_to_resource(soc, 0, &res))
immrbase = res.start;
of_node_put(soc);
}