linux-kernel - [PATCH 4/4] irqchip/sg2042-msi: Set MSI_FLAG_MULTI_PCI

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Message-ID: <20250807112326.748740-5-inochiama@gmail.com>
Date: Thu,  7 Aug 2025 19:23:25 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: Thomas Gleixner <tglx@...utronix.de>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Marc Zyngier <maz@...nel.org>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Inochi Amaoto <inochiama@...il.com>,
	Saurabh Sengar <ssengar@...ux.microsoft.com>,
	Shradha Gupta <shradhagupta@...ux.microsoft.com>,
	Jonathan Cameron <Jonathan.Cameron@...ei.com>,
	Nicolin Chen <nicolinc@...dia.com>,
	Jason Gunthorpe <jgg@...pe.ca>,
	Chen Wang <unicorn_wang@...look.com>
Cc: linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org,
	Yixun Lan <dlan@...too.org>,
	Longbin Li <looong.bin@...il.com>
Subject: [PATCH 4/4] irqchip/sg2042-msi: Set MSI_FLAG_MULTI_PCI_MSI flags for SG2044

The MSI controller on SG2044 has the ability to allocate
multiple PCI MSI interrupt if the controller supports it.
Add the missing flag so the controller can make full use
of it.

Signed-off-by: Inochi Amaoto <inochiama@...il.com>
---
 drivers/irqchip/irq-sg2042-msi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/irqchip/irq-sg2042-msi.c b/drivers/irqchip/irq-sg2042-msi.c
index 2b7ee17232ab..6efb34a91937 100644
--- a/drivers/irqchip/irq-sg2042-msi.c
+++ b/drivers/irqchip/irq-sg2042-msi.c
@@ -212,6 +212,7 @@ static const struct msi_parent_ops sg2042_msi_parent_ops = {
 				   MSI_FLAG_PCI_MSI_STARTUP_PARENT)
 
 #define SG2044_MSI_FLAGS_SUPPORTED (MSI_GENERIC_FLAGS_MASK |	\
+				    MSI_FLAG_MULTI_PCI_MSI |	\
 				    MSI_FLAG_PCI_MSIX)
 
 static const struct msi_parent_ops sg2044_msi_parent_ops = {
-- 
2.50.1