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-rw-r--r--drivers/irqchip/irq-sifive-plic.c16
1 files changed, 1 insertions, 15 deletions
diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c
index d9c53f85a68e..16d31d114c30 100644
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -240,20 +240,6 @@ static void plic_handle_irq(struct pt_regs *regs)
csr_set(CSR_IE, IE_EIE);
}
-/*
- * Walk up the DT tree until we find an active RISC-V core (HART) node and
- * extract the cpuid from it.
- */
-static int plic_find_hart_id(struct device_node *node)
-{
- for (; node; node = node->parent) {
- if (of_device_is_compatible(node, "riscv"))
- return riscv_of_processor_hartid(node);
- }
-
- return -1;
-}
-
static void plic_set_threshold(struct plic_handler *handler, u32 threshold)
{
/* priority must be > threshold to trigger an interrupt */
@@ -330,7 +316,7 @@ static int __init plic_init(struct device_node *node,
if (parent.args[0] != RV_IRQ_EXT)
continue;
- hartid = plic_find_hart_id(parent.np);
+ hartid = riscv_of_parent_hartid(parent.np);
if (hartid < 0) {
pr_warn("failed to parse hart ID for context %d.\n", i);
continue;