Re: [PATCH 2/4] dt-bindings: clock: Convert ti, sci-clk to json schema
From: Stephen Boyd <sboyd@kernel.org>
Date: 2021-04-16 23:55:21
Also in:
linux-clk, linux-devicetree, lkml
Quoting Nishanth Menon (2021-04-15 23:37:19)
quoted hunk ↗ jump to hunk
diff --git a/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml b/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml new file mode 100644 index 000000000000..72633651f0c7 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/ti,sci-clk.yaml@@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/ti,sci-clk.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI-SCI clock controller node bindings + +maintainers: + - Nishanth Menon <nm@ti.com> + +allOf: + - $ref: /schemas/clock/clock.yaml#
Is this needed?
+ +description: | + Some TI SoCs contain a system controller (like the Power Management Micro + Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling + the state of the various hardware modules present on the SoC. Communication + between the host processor running an OS and the system controller happens + through a protocol called TI System Control Interface (TI-SCI protocol). + + This clock controller node uses the TI SCI protocol to perform various clock + management of various hardware modules (devices) present on the SoC. This + node must be a child node of the associated TI-SCI system controller node. + +properties: + $nodename: + pattern: "^clock-controller$"
Is this nodename pattern check required?
+ + compatible: + const: ti,k2g-sci-clk
I thought most things keyed off the compatible string.
+ + "#clock-cells": + const: 2 + description: + The two cells represent values that the TI-SCI controller defines. + + The first cell should contain the device ID. + + The second cell should contain the clock ID. + + Please see http://processors.wiki.ti.com/index.php/TISCI for + protocol documentation for the values to be used for different devices. + +additionalProperties: false + +examples: + - | + k3_clks: clock-controller { + compatible = "ti,k2g-sci-clk"; + #clock-cells = <2>; + };
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