[PATCH 06/10] irqchip/gic-v5: Honour ACPI ITS noncoherent flag

[Sascha Bischoff]

The ACPI ITS probe passes its noncoherent flag to
gicv5_its_init_bases(), but the common initializer checks a DT
property instead. For an ACPI ITS, this always selects coherent cache
settings and skips the cache maintenance required for its tables.

Use the noncoherent argument, which both firmware paths already
supply.

Fixes: a97efa5ba5946 ("irqchip/gic-v5: Add ACPI ITS probing")
Cc: stable at vger.kernel.org
Signed-off-by: Sascha Bischoff <sascha.bischoff at arm.com>
---
 drivers/irqchip/irq-gic-v5-its.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v5-its.c b/drivers/irqchip/irq-gic-v5-its.c
index 866c238f08dfe..c5d057f713134 100644
--- a/drivers/irqchip/irq-gic-v5-its.c
+++ b/drivers/irqchip/irq-gic-v5-its.c
@@ -1135,7 +1135,7 @@ static int __init gicv5_its_init_bases(void __iomem *its_base, struct fwnode_han
 			goto out_free_node;
 	}
 
-	if (of_property_read_bool(np, "dma-noncoherent")) {
+	if (noncoherent) {
 		/*
 		 * A non-coherent ITS implies that some cache levels cannot be
 		 * used coherently by the cores and GIC. Our only option is to mark

-- 
2.34.1