From 2ea44ca1ffccf89cfb9e6755156843e278ec9645 Mon Sep 17 00:00:00 2001
From: Anson Huang <anson.huang@nxp.com>
Date: Thu, 20 Dec 2018 08:56:07 +0000
Subject: [PATCH] dt-bindings: fsl: scu: add rtc binding
NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as
system controller, the system controller is in charge of system
power, clock and secure RTC etc. management, Linux kernel
has to communicate with system controller via MU (message unit)
IPC to do RTC operation, this patch adds binding doc for i.MX
system controller RTC driver.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
.../devicetree/bindings/arm/freescale/fsl,scu.txt | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index 46d0af1f08729..0860346fc9ebf 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
@@ -114,6 +114,12 @@ Required properties for Pinctrl sub nodes:
[2] Documentation/devicetree/bindings/power/power_domain.txt
[3] Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
+RTC bindings based on SCU Message Protocol
+------------------------------------------------------------
+
+Required properties:
+- compatible: should be "fsl,imx8qxp-sc-rtc";
+
Example (imx8qxp):
-------------
lsio_mu1: mailbox@5d1c0000 {
@@ -169,6 +175,10 @@ firmware {
};
...
};
+
+ rtc: rtc {
+ compatible = "fsl,imx8qxp-sc-rtc";
+ };
};
};
--
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