[PATCH v6 20/37] arm: gic-v3-its: Implement of_xlate

Patrick Rudolph
2024-10-02T09:55:22Z

Translate IRQs by implementing of_xlate() as required by
irq_get_by_index() to parse interrupt properties.

TEST: Booted on qemu sbsa-ref that has a GICV3.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
Changelog v6:
- Update header order

---
arch/arm/lib/gic-v3-its.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)

diff --git a/arch/arm/lib/gic-v3-its.c b/arch/arm/lib/gic-v3-its.c
index 22fa46a341..0d5545bfb2 100644
--- a/arch/arm/lib/gic-v3-its.c
+++ b/arch/arm/lib/gic-v3-its.c
@@ -4,6 +4,7 @@
*/
#include <cpu_func.h>
#include <dm.h>
+#include <irq.h>
#include <asm/gic.h>
#include <asm/gic-v3.h>
#include <asm/io.h>
@@ -163,8 +164,28 @@ static const struct udevice_id gic_v3_ids[] = {
{}
};

+static int arm_gic_v3_of_xlate(struct irq *irq, struct ofnode_phandle_args *args)
+{
+ if (args->args_count > 2) {
+ log_debug("Invalid args_count: %d\n", args->args_count);
+ return -EINVAL;
+ }
+
+ if (args->args_count > 0)
+ irq->id = args->args[0];
+ if (args->args_count > 1)
+ irq->flags = args->args[1];
+
+ return 0;
+}
+
+static const struct irq_ops arm_gic_v3_ops = {
+ .of_xlate = arm_gic_v3_of_xlate,
+};
+
U_BOOT_DRIVER(arm_gic_v3) = {
.name = "gic-v3",
.id = UCLASS_IRQ,
.of_match = gic_v3_ids,
+ .ops = &arm_gic_v3_ops,
};
--
2.46.2