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irqchip/sifive-plic: Use riscv_get_intc_hwnode() to get parent fwnode

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The RISC-V INTC irqdomain is always the parent irqdomain of SiFive PLIC
so use riscv_get_intc_hwnode() to get the parent fwnode similar to other
RISC-V drivers which use local interrupts.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240222094006.1030709-5-apatel@ventanamicro.com
This commit is contained in:
Anup Patel 2024-02-22 15:09:52 +05:30 committed by Thomas Gleixner
parent b68d0ff529
commit 6c725f33d6
1 changed files with 5 additions and 4 deletions
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9
drivers/irqchip/irq-sifive-plic.c
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@ -423,6 +423,7 @@ static int plic_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
unsigned long plic_quirks = 0;
struct plic_handler *handler;
struct irq_domain *domain;
struct plic_priv *priv;
bool cpuhp_setup;
unsigned int cpu;
@ -502,11 +503,11 @@ static int plic_probe(struct platform_device *pdev)
}
/* Find parent domain and register chained handler */
if (!plic_parent_irq && irq_find_host(parent.np)) {
plic_parent_irq = irq_of_parse_and_map(to_of_node(dev->fwnode), i);
domain = irq_find_matching_fwnode(riscv_get_intc_hwnode(), DOMAIN_BUS_ANY);
if (!plic_parent_irq && domain) {
plic_parent_irq = irq_create_mapping(domain, RV_IRQ_EXT);
if (plic_parent_irq)
irq_set_chained_handler(plic_parent_irq,
plic_handle_irq);
irq_set_chained_handler(plic_parent_irq, plic_handle_irq);
}
/*