irqchip/MSI: Use irq_domain_update_bus_token instead of an open coded access

Now that we have irq_domain_update_bus_token(), switch everyone over
to it. The debugfs code thanks you for your continued support.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

drivers/base/platform-msi.c

@@ -195,7 +195,7 @@ struct irq_domain *platform_msi_create_irq_domain(struct fwnode_handle *fwnode,
 
 	domain = msi_create_irq_domain(fwnode, info, parent);
 	if (domain)
-		domain->bus_token = DOMAIN_BUS_PLATFORM_MSI;
+		irq_domain_update_bus_token(domain, DOMAIN_BUS_PLATFORM_MSI);
 
 	return domain;
 }

drivers/irqchip/irq-armada-370-xp.c

@@ -563,7 +563,7 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node,
 		irq_domain_add_linear(node, nr_irqs,
 				&armada_370_xp_mpic_irq_ops, NULL);
 	BUG_ON(!armada_370_xp_mpic_domain);
-	armada_370_xp_mpic_domain->bus_token = DOMAIN_BUS_WIRED;
+	irq_domain_update_bus_token(armada_370_xp_mpic_domain, DOMAIN_BUS_WIRED);
 
 	/* Setup for the boot CPU */
 	armada_xp_mpic_perf_init();

drivers/irqchip/irq-gic-v2m.c

@@ -280,7 +280,7 @@ static int gicv2m_allocate_domains(struct irq_domain *parent)
 		return -ENOMEM;
 	}
 
-	inner_domain->bus_token = DOMAIN_BUS_NEXUS;
+	irq_domain_update_bus_token(inner_domain, DOMAIN_BUS_NEXUS);
 	inner_domain->parent = parent;
 	pci_domain = pci_msi_create_irq_domain(v2m->fwnode,
 					       &gicv2m_msi_domain_info,

drivers/irqchip/irq-gic-v3-its.c

@@ -1661,7 +1661,7 @@ static int its_init_domain(struct fwnode_handle *handle, struct its_node *its)
 	}
 
 	inner_domain->parent = its_parent;
-	inner_domain->bus_token = DOMAIN_BUS_NEXUS;
+	irq_domain_update_bus_token(inner_domain, DOMAIN_BUS_NEXUS);
 	inner_domain->flags |= IRQ_DOMAIN_FLAG_MSI_REMAP;
 	info->ops = &its_msi_domain_ops;
 	info->data = its;

drivers/irqchip/irq-mips-cpu.c

@@ -240,7 +240,7 @@ static void mips_cpu_register_ipi_domain(struct device_node *of_node)
 					      ipi_domain_state);
 	if (!ipi_domain)
 		panic("Failed to add MIPS CPU IPI domain");
-	ipi_domain->bus_token = DOMAIN_BUS_IPI;
+	irq_domain_update_bus_token(ipi_domain, DOMAIN_BUS_IPI);
 }
 
 #else /* !CONFIG_GENERIC_IRQ_IPI */

drivers/irqchip/irq-mips-gic.c

@@ -960,7 +960,7 @@ static void __init __gic_init(unsigned long gic_base_addr,
 		panic("Failed to add GIC IPI domain");
 
 	gic_ipi_domain->name = "mips-gic-ipi";
-	gic_ipi_domain->bus_token = DOMAIN_BUS_IPI;
+	irq_domain_update_bus_token(gic_ipi_domain, DOMAIN_BUS_IPI);
 
 	if (node &&
 	    !of_property_read_u32_array(node, "mti,reserved-ipi-vectors", v, 2)) {

drivers/pci/msi.c

@@ -1463,7 +1463,7 @@ struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
 	if (!domain)
 		return NULL;
 
-	domain->bus_token = DOMAIN_BUS_PCI_MSI;
+	irq_domain_update_bus_token(domain, DOMAIN_BUS_PCI_MSI);
 	return domain;
 }
 EXPORT_SYMBOL_GPL(pci_msi_create_irq_domain);

drivers/staging/fsl-mc/bus/fsl-mc-msi.c

@@ -170,7 +170,7 @@ struct irq_domain *fsl_mc_msi_create_irq_domain(struct fwnode_handle *fwnode,
 
 	domain = msi_create_irq_domain(fwnode, info, parent);
 	if (domain)
-		domain->bus_token = DOMAIN_BUS_FSL_MC_MSI;
+		irq_domain_update_bus_token(domain, DOMAIN_BUS_FSL_MC_MSI);
 
 	return domain;
 }