PCI: aardvark: Make msi_domain_info structure a static driver structure

Make Aardvark's msi_domain_info structure into a private driver structure.
Domain info is same for every potential instatination of a controller.

Link: https://lore.kernel.org/r/20220110015018.26359-8-kabel@kernel.org
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

Author: elkablo

drivers/pci/controller/pci-aardvark.c

@@ -274,7 +274,6 @@ struct advk_pcie {
 	raw_spinlock_t irq_lock;
 	struct irq_domain *msi_domain;
 	struct irq_domain *msi_inner_domain;
-	struct msi_domain_info msi_domain_info;
 	DECLARE_BITMAP(msi_used, MSI_IRQ_NUM);
 	struct mutex msi_used_lock;
 	u16 msi_msg;
@@ -1284,20 +1283,20 @@ static struct irq_chip advk_msi_irq_chip = {
 	.name = "advk-MSI",
 };
 
+static struct msi_domain_info advk_msi_domain_info = {
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_MULTI_PCI_MSI,
+	.chip	= &advk_msi_irq_chip,
+};
+
 static int advk_pcie_init_msi_irq_domain(struct advk_pcie *pcie)
 {
 	struct device *dev = &pcie->pdev->dev;
 	struct device_node *node = dev->of_node;
-	struct msi_domain_info *msi_di;
 	phys_addr_t msi_msg_phys;
 
 	mutex_init(&pcie->msi_used_lock);
 
-	msi_di = &pcie->msi_domain_info;
-	msi_di->flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		MSI_FLAG_MULTI_PCI_MSI;
-	msi_di->chip = &advk_msi_irq_chip;
-
 	msi_msg_phys = virt_to_phys(&pcie->msi_msg);
 
 	advk_writel(pcie, lower_32_bits(msi_msg_phys),
@@ -1313,7 +1312,8 @@ static int advk_pcie_init_msi_irq_domain(struct advk_pcie *pcie)
 
 	pcie->msi_domain =
 		pci_msi_create_irq_domain(of_node_to_fwnode(node),
-					  msi_di, pcie->msi_inner_domain);
+					  &advk_msi_domain_info,
+					  pcie->msi_inner_domain);
 	if (!pcie->msi_domain) {
 		irq_domain_remove(pcie->msi_inner_domain);
 		return -ENOMEM;