[tip: irq/msi] irqchip/sifive-plic: Use riscv_get_intc_hwnode() to get parent fwnode

tip-bot2 for Anup Patel
2024-02-23T09:44:02Z

The following commit has been merged into the irq/msi branch of tip:

Commit-ID: 6c725f33d67b53f2d302c2c4509deae953fc6ade
Gitweb: https://git.kernel.org/tip/6c725f33d67b53f2d302c2c4509deae953fc6ade
Author: Anup Patel <apatel@ventanamicro.com>
AuthorDate: Thu, 22 Feb 2024 15:09:52 +05:30
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Fri, 23 Feb 2024 10:18:44 +01:00

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

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

---
drivers/irqchip/irq-sifive-plic.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c
index 299feef..208fad7 100644
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -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);
}

/*