csky: Use of_get_cpu_hwid()

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

Cc: Guo Ren <guoren@kernel.org>
Cc: linux-csky@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211006164332.1981454-6-robh@kernel.org

diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c
index e2993539af8efea577a76ee325c932e6eb060a0b..6bb38bc2f39b4370807842a22a38e084b7be03c2 100644 (file)
--- a/arch/csky/kernel/smp.c
+++ b/arch/csky/kernel/smp.c
@@ -180,15 +180,13 @@ void __init setup_smp_ipi(void)
 void __init setup_smp(void)
 {
        struct device_node *node = NULL;
-       int cpu;
+       unsigned int cpu;
 
        for_each_of_cpu_node(node) {
                if (!of_device_is_available(node))
                        continue;
 
-               if (of_property_read_u32(node, "reg", &cpu))
-                       continue;
-
+               cpu = of_get_cpu_hwid(node, 0);
                if (cpu >= NR_CPUS)
                        continue;