[PATCH 1/2] dt-bindings: soc: Add ZynqMP PM bindings
From: robh@kernel.org (Rob Herring)
Date: 2018-03-05 22:33:32
Also in:
linux-devicetree, lkml
On Tue, Feb 27, 2018 at 03:24:25PM -0800, Jolly Shah wrote:
quoted hunk ↗ jump to hunk
Add documentation to describe Xilinx ZynqMP power management bindings. Signed-off-by: Jolly Shah <redacted> Signed-off-by: Rajan Vaja <redacted> --- .../bindings/soc/xilinx/xlnx,zynqmp-power.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/xilinx/xlnx,zynqmp-power.txtdiff --git a/Documentation/devicetree/bindings/soc/xilinx/xlnx,zynqmp-power.txt b/Documentation/devicetree/bindings/soc/xilinx/xlnx,zynqmp-power.txt new file mode 100644 index 0000000..5b7d963 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/xilinx/xlnx,zynqmp-power.txt@@ -0,0 +1,28 @@ +Xilinx Zynq MPSoC Power Management Device Tree Bindings + +The zynqmp-power node describes the power management configurations.
That really tells me nothing. What aspect of power management does this interface control?
+ +Required properties: + - compatible : Must contain: "xlnx,zynqmp-power" + - mbox-names : Name given to channels seen in the 'mboxes' property. + "rx" - Mailbox corresponding to receive path + "tx" - Mailbox corresponding to transmit path + - mboxes : Standard property to specify a Mailbox. Each value of + the mboxes property should contain a phandle to the + mailbox controller device node and an args specifier + that will be the phandle to the intended sub-mailbox + child node to be used for communication. See + Documentation/devicetree/bindings/mailbox/mailbox.txt + for more details about the generic mailbox controller + and client driver bindings. Also see + Documentation/devicetree/bindings/mailbox/ \ + xlnx,zynqmp-ipi-mailbox.txt for typical controller that + is used to communicate with this System controllers.
No need to define a standard property here. Just need to say how many entries and refer to the common binding.
+
+Examples:
+ zynqmp_power: zynqmp-power {
+ compatible = "xlnx,zynqmp-power";
+ mboxes = <&ipi_mailbox_pmu0 0>,
+ <&ipi_mailbox_pmu0 1>;
+ mbox-names = "tx", "rx";
+ };
--
2.7.4