Thread (5 messages) 5 messages, 3 authors, 2018-03-07

RE: [PATCH 1/2] dt-bindings: soc: Add ZynqMP PM bindings

From: Jolly Shah <hidden>
Date: 2018-03-07 22:55:17
Also in: linux-arm-kernel, lkml

Hi Rob,

Thanks for the review,
-----Original Message-----
From: Rob Herring [mailto:robh@kernel.org]
Sent: Monday, March 05, 2018 2:33 PM
To: Jolly Shah <redacted>
Cc: matthias.bgg@gmail.com; andy.gross@linaro.org; shawnguo@kernel.org;
geert+renesas@glider.be; bjorn.andersson@linaro.org;
sean.wang@mediatek.com; m.szyprowski@samsung.com;
michal.simek@xilinx.com; mark.rutland@arm.com; Rajan Vaja
[off-list ref]; devicetree@vger.kernel.org; linux-arm-
kernel@lists.infradead.org; linux-kernel@vger.kernel.org; Jolly Shah
[off-list ref]
Subject: Re: [PATCH 1/2] dt-bindings: soc: Add ZynqMP PM bindings

On Tue, Feb 27, 2018 at 03:24:25PM -0800, Jolly Shah wrote:
quoted
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
++++++++++++++++++++++
quoted
 1 file changed, 28 insertions(+)
 create mode 100644
Documentation/devicetree/bindings/soc/xilinx/xlnx,zynqmp-power.txt

diff --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.t
+++ xt
@@ -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?
It controls remote suspend/shutdown interfaces. Will add details in next version.
quoted
+
+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.
Ok. Will update same in next version.
quoted
+
+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
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