irqchip/riscv-imsic: Convert to msi_create_parent_irq_domain() helper

Now that we have a concise helper to create an MSI parent domain,
switch the RISC-V letter soup over to that.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Nam Cao <tglx@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/b906a38d443577de45923b335d80fc54c5638da0.1750860131.git.namcao@linutronix.de
Link: https://lore.kernel.org/all/20241204124549.607054-6-maz@kernel.org

diff --git a/drivers/irqchip/irq-riscv-imsic-platform.c b/drivers/irqchip/irq-riscv-imsic-platform.c
index 1b9fbfce95816a7f5b438c12a62c45a6743fe9de..74a2a28f94030d1d8634aacbd03d850c6f161c1a 100644 (file)
--- a/drivers/irqchip/irq-riscv-imsic-platform.c
+++ b/drivers/irqchip/irq-riscv-imsic-platform.c
@@ -307,6 +307,11 @@ static const struct msi_parent_ops imsic_msi_parent_ops = {
 
 int imsic_irqdomain_init(void)
 {
+       struct irq_domain_info info = {
+               .fwnode         = imsic->fwnode,
+               .ops            = &imsic_base_domain_ops,
+               .host_data      = imsic,
+       };
        struct imsic_global_config *global;
 
        if (!imsic || !imsic->fwnode) {
@@ -320,16 +325,11 @@ int imsic_irqdomain_init(void)
        }
 
        /* Create Base IRQ domain */
-       imsic->base_domain = irq_domain_create_tree(imsic->fwnode,
-                                                   &imsic_base_domain_ops, imsic);
+       imsic->base_domain = msi_create_parent_irq_domain(&info, &imsic_msi_parent_ops);
        if (!imsic->base_domain) {
                pr_err("%pfwP: failed to create IMSIC base domain\n", imsic->fwnode);
                return -ENOMEM;
        }
-       imsic->base_domain->flags |= IRQ_DOMAIN_FLAG_MSI_PARENT;
-       imsic->base_domain->msi_parent_ops = &imsic_msi_parent_ops;
-
-       irq_domain_update_bus_token(imsic->base_domain, DOMAIN_BUS_NEXUS);
 
        global = &imsic->global;
        pr_info("%pfwP:  hart-index-bits: %d,  guest-index-bits: %d\n",