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riscv: Use of_get_cpu_hwid()

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Replace open coded parsing of CPU nodes' 'reg' property with
of_get_cpu_hwid().

Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211006164332.1981454-9-robh@kernel.org
This commit is contained in:
Rob Herring 2021-10-06 11:43:28 -05:00
parent 41408b22ec
commit bd2259ee45
1 changed files with 2 additions and 1 deletions
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3
arch/riscv/kernel/cpu.c
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@ -22,7 +22,8 @@ int riscv_of_processor_hartid(struct device_node *node)
return -ENODEV; return -ENODEV;
} }
if (of_property_read_u32(node, "reg", &hart)) { hart = of_get_cpu_hwid(node, 0);
if (hart == ~0U) {
pr_warn("Found CPU without hart ID\n"); pr_warn("Found CPU without hart ID\n");
return -ENODEV; return -ENODEV;
} }