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[PATCH v2] irqchip/armada-370-xp: Enable MSI-X support

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Armada XP does not only support MSI, but also MSI-X. This patch sets
the MSI_FLAG_PCI_MSIX flag in the interrupt controller driver which
is the only change necessary to enable MSI-X support on this SoC. As
the Linux PCI MSI-X infrastructure takes care of writing the data and
address structures into the BAR specified by the MSI-X controller.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
---
v2:
- Added Reviewed-by tag from Thomas
- Added usual irqchip maintainers

 drivers/irqchip/irq-armada-370-xp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 33982cbd8a57..b17039ed8735 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -124,7 +124,7 @@ static struct irq_chip armada_370_xp_msi_irq_chip = {
 
 static struct msi_domain_info armada_370_xp_msi_domain_info = {
 	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_MULTI_PCI_MSI),
+		   MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX),
 	.chip	= &armada_370_xp_msi_irq_chip,
 };
 
-- 
2.12.2

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Thread

[PATCH v2] irqchip/armada-370-xp: Enable MSI-X support Stefan Roese <sr@denx.de> - 2017-08-18 15:00 +0200
  Re: [PATCH v2] irqchip/armada-370-xp: Enable MSI-X support Marc Zyngier <marc.zyngier@arm.com> - 2017-08-18 15:30 +0200

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