From 12b2ec6090fb2a091fc214ce022bd6f4d3e5c5ba Mon Sep 17 00:00:00 2001
From: Frank Wang <frank.wang@rock-chips.com>
Date: Mon, 23 May 2022 16:32:20 +0800
Subject: [PATCH] mailbox: rockchip: add irq wake up support

Parse and enable irq wakeup if the "wakeup-source" property was present.

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Change-Id: I21b974d65dc02c1f3bd5f0e52a1372367b77a6e4
---
 drivers/mailbox/rockchip-mailbox.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mailbox/rockchip-mailbox.c b/drivers/mailbox/rockchip-mailbox.c
index 99b9421b8494..1e0f867cd6e1 100644
--- a/drivers/mailbox/rockchip-mailbox.c
+++ b/drivers/mailbox/rockchip-mailbox.c
@@ -224,6 +224,9 @@ static int rockchip_mbox_probe(struct platform_device *pdev)
 							mb);
 			if (ret < 0)
 				return ret;
+
+			if (device_property_present(&pdev->dev, "wakeup-source"))
+				enable_irq_wake(irq);
 		}
 
 		mb->chans[i].idx = i;