1 files changed, 20 insertions, 32 deletions

diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c
index a48dbe91b036..f8c70f2d100a 100644
--- a/drivers/irqchip/irq-mvebu-sei.c
+++ b/drivers/irqchip/irq-mvebu-sei.c
@@ -14,6 +14,8 @@
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
+#include "irq-msi-lib.h"
+
 /* Cause register */
 #define GICP_SECR(idx)		(0x0  + ((idx) * 0x4))
 /* Mask register */
@@ -190,6 +192,7 @@ static void mvebu_sei_domain_free(struct irq_domain *domain, unsigned int virq,
 }
 
 static const struct irq_domain_ops mvebu_sei_domain_ops = {
+	.select	= msi_lib_irq_domain_select,
 	.alloc	= mvebu_sei_domain_alloc,
 	.free	= mvebu_sei_domain_free,
 };
@@ -307,21 +310,6 @@ static const struct irq_domain_ops mvebu_sei_cp_domain_ops = {
 	.free	= mvebu_sei_cp_domain_free,
 };
 
-static struct irq_chip mvebu_sei_msi_irq_chip = {
-	.name		= "SEI pMSI",
-	.irq_ack	= irq_chip_ack_parent,
-	.irq_set_type	= irq_chip_set_type_parent,
-};
-
-static struct msi_domain_ops mvebu_sei_msi_ops = {
-};
-
-static struct msi_domain_info mvebu_sei_msi_domain_info = {
-	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS,
-	.ops	= &mvebu_sei_msi_ops,
-	.chip	= &mvebu_sei_msi_irq_chip,
-};
-
 static void mvebu_sei_handle_cascade_irq(struct irq_desc *desc)
 {
 	struct mvebu_sei *sei = irq_desc_get_handler_data(desc);
@@ -360,10 +348,23 @@ static void mvebu_sei_reset(struct mvebu_sei *sei)
 	}
 }
 
+#define SEI_MSI_FLAGS_REQUIRED	(MSI_FLAG_USE_DEF_DOM_OPS |	\
+				 MSI_FLAG_USE_DEF_CHIP_OPS)
+
+#define SEI_MSI_FLAGS_SUPPORTED	(MSI_GENERIC_FLAGS_MASK)
+
+static const struct msi_parent_ops sei_msi_parent_ops = {
+	.supported_flags	= SEI_MSI_FLAGS_SUPPORTED,
+	.required_flags		= SEI_MSI_FLAGS_REQUIRED,
+	.bus_select_mask	= MATCH_PLATFORM_MSI,
+	.bus_select_token	= DOMAIN_BUS_GENERIC_MSI,
+	.prefix			= "SEI-",
+	.init_dev_msi_info	= msi_lib_init_dev_msi_info,
+};
+
 static int mvebu_sei_probe(struct platform_device *pdev)
 {
 	struct device_node *node = pdev->dev.of_node;
-	struct irq_domain *plat_domain;
 	struct mvebu_sei *sei;
 	u32 parent_irq;
 	int ret;
@@ -440,33 +441,20 @@ static int mvebu_sei_probe(struct platform_device *pdev)
 	}
 
 	irq_domain_update_bus_token(sei->cp_domain, DOMAIN_BUS_GENERIC_MSI);
-
-	plat_domain = platform_msi_create_irq_domain(of_node_to_fwnode(node),
-						     &mvebu_sei_msi_domain_info,
-						     sei->cp_domain);
-	if (!plat_domain) {
-		pr_err("Failed to create CPs MSI domain\n");
-		ret = -ENOMEM;
-		goto remove_cp_domain;
-	}
+	sei->cp_domain->flags |= IRQ_DOMAIN_FLAG_MSI_PARENT;
+	sei->cp_domain->msi_parent_ops = &sei_msi_parent_ops;
 
 	mvebu_sei_reset(sei);
 
-	irq_set_chained_handler_and_data(parent_irq,
-					 mvebu_sei_handle_cascade_irq,
-					 sei);
-
+	irq_set_chained_handler_and_data(parent_irq, mvebu_sei_handle_cascade_irq, sei);
 	return 0;
 
-remove_cp_domain:
-	irq_domain_remove(sei->cp_domain);
 remove_ap_domain:
 	irq_domain_remove(sei->ap_domain);
 remove_sei_domain:
 	irq_domain_remove(sei->sei_domain);
 dispose_irq:
 	irq_dispose_mapping(parent_irq);
-
 	return ret;
 }