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riscv: treat cpu devicetree nodes without status as enabled 

Follow the Linux convention and treat devicetree nodes without a status
property as enabled rather than disabled, while also allowing "ok" as a
shorthand for "okay".

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Johan Hovold 2019-01-18 15:03:07 +01:00 committed by Palmer Dabbelt
parent 149820c6cf
commit e3d794d555
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GPG Key ID: EF4CA1502CCBAB41
1 changed files with 3 additions and 7 deletions
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10
arch/riscv/kernel/cpu.c
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@ -22,7 +22,7 @@
*/
int riscv_of_processor_hartid(struct device_node *node)
{
const char *isa, *status;
const char *isa;
u32 hart;
if (!of_device_is_compatible(node, "riscv")) {
@ -39,12 +39,8 @@ int riscv_of_processor_hartid(struct device_node *node)
return -ENODEV;
}
if (of_property_read_string(node, "status", &status)) {
pr_warn("CPU with hartid=%d has no \"status\" property\n", hart);
return -ENODEV;
}
if (strcmp(status, "okay")) {
pr_info("CPU with hartid=%d has a non-okay status of \"%s\"\n", hart, status);
if (!of_device_is_available(node)) {
pr_info("CPU with hartid=%d is not available\n", hart);
return -ENODEV;
}