irq: Tidy up of-platdata irq support
This function is available but not exported. More generally it does not
really work as intended.
Reimplement it and add a sandbox test too.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/misc/irq_sandbox_test.c b/drivers/misc/irq_sandbox_test.c
new file mode 100644
index 0000000..95c45c2
--- /dev/null
+++ b/drivers/misc/irq_sandbox_test.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Sandbox driver for testing interrupts with of-platdata
+ *
+ * Copyright 2021 Google LLC
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <irq.h>
+#include <asm/irq.h>
+
+static const struct udevice_id sandbox_irq_test_ids[] = {
+ { .compatible = "sandbox,irq-test" },
+ { }
+};
+
+U_BOOT_DRIVER(sandbox_irq_test) = {
+ .name = "sandbox_irq_test",
+ .id = UCLASS_MISC,
+ .of_match = sandbox_irq_test_ids,
+};