From: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx>
It's not quite clear that msi-controller is already checked
by of_msi_chip_add. So, this patch add a note to clarify.
Also, clean up redundant logic and unnecessary pr_info.
Cc: Mark Rutland <Mark.Rutland@xxxxxxx>
Cc: Marc Zyngier <Marc.Zyngier@xxxxxxx>
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Cc: Catalin Marinas <Catalin.Marinas@xxxxxxx>
Cc: Will Deacon <Will.Deacon@xxxxxxx>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx>
---
Note: This patch is created against irqchip/gic branch.
drivers/irqchip/irq-gic-v2m.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index e54ca1d..94ed8d6 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -235,15 +235,15 @@ gicv2m_of_init(struct device_node *node, struct device_node *parent)
gic->msi_chip.teardown_irq = gicv2m_teardown_msi_irq;
ret = of_pci_msi_chip_add(&gic->msi_chip);
if (ret) {
- /* MSI is optional and not supported here */
- pr_info("GICv2m: MSI is not supported.\n");
+ /*
+ * Note: msi-controller is checked in of_pci_msi_chip_add().
+ * MSI support is optional, and enabled only if msi-controller
+ * is specified. Hence, return 0.
+ */
return 0;
}
- ret = gicv2m_msi_init(node, &gic->v2m_data);
- if (ret)
- return ret;
- return ret;
+ return gicv2m_msi_init(node, &gic->v2m_data);
}
IRQCHIP_DECLARE(arm_gic_400_v2m, "arm,gic-400-v2m", gicv2m_of_init);
--
1.9.0
--
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