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-rw-r--r--drivers/irqchip/irq-sg2042-msi.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-sg2042-msi.c b/drivers/irqchip/irq-sg2042-msi.c
index ee682e87eb8b..375b55aa0acd 100644
--- a/drivers/irqchip/irq-sg2042-msi.c
+++ b/drivers/irqchip/irq-sg2042-msi.c
@@ -151,6 +151,7 @@ static const struct irq_domain_ops sg2042_msi_middle_domain_ops = {
static const struct msi_parent_ops sg2042_msi_parent_ops = {
.required_flags = SG2042_MSI_FLAGS_REQUIRED,
.supported_flags = SG2042_MSI_FLAGS_SUPPORTED,
+ .chip_flags = MSI_CHIP_FLAG_SET_ACK,
.bus_select_mask = MATCH_PCI_MSI,
.bus_select_token = DOMAIN_BUS_NEXUS,
.prefix = "SG2042-",