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authorAnson Huang <anson.huang@nxp.com>2018-12-20 08:56:07 +0000
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2018-12-20 12:47:38 +0100
commit2ea44ca1ffccf89cfb9e6755156843e278ec9645 (patch)
tree6617f4fc93605ba2720f5a84851de1173f1dd6da /Documentation
parent3c3d71013c7655b9cc4043c9f8845f0c4402d71d (diff)
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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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index 46d0af1f0872..0860346fc9eb 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";
+ };
};
};