linux-kernel - [PATCH v2 1/4] dt-bindings: firmware: Add bindings for ZynqMP firmware

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Date:   Wed, 17 Jan 2018 12:20:31 -0800
From:   Jolly Shah <jolly.shah@...inx.com>
To:     <ard.biesheuvel@...aro.org>, <mingo@...nel.org>,
        <gregkh@...uxfoundation.org>, <matt@...eblueprint.co.uk>,
        <sudeep.holla@....com>, <hkallweit1@...il.com>,
        <keescook@...omium.org>, <dmitry.torokhov@...il.com>,
        <michal.simek@...inx.com>, <robh+dt@...nel.org>,
        <mark.rutland@....com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <rajanv@...inx.com>, Jolly Shah <jollys@...inx.com>
Subject: [PATCH v2 1/4] dt-bindings: firmware: Add bindings for ZynqMP firmware

Add documentation to describe Xilinx ZynqMP firmware driver
bindings. Firmware driver provides an interface to firmware
APIs. Interface APIs can be used by any driver to communicate
to PMUFW (Platform Management Unit).

Signed-off-by: Jolly Shah <jollys@...inx.com>
Signed-off-by: Rajan Vaja <rajanv@...inx.com>
---
 .../bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt    | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt

diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
new file mode 100644
index 0000000..a7aaf56
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.txt
@@ -0,0 +1,16 @@
+Xilinx Zynq MPSoC Firmware Device Tree Bindings
+
+The zynqmp-firmware node describes the interface to platform firmware.
+
+Required properties:
+ - compatible: Must contain:  "xlnx,zynqmp-firmware"
+ - method:     The method of calling the PM-API firmware layer.
+               Permitted values are:
+                - "smc" : To be used in configurations without a hypervisor
+                - "hvc" : To be used when hypervisor is present
+
+Examples:
+       zynqmp_firmware: zynqmp-firmware {
+               compatible = "xlnx,zynqmp-firmware";
+               method = "smc";
+       };
--
2.7.4

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