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dt-bindings: clk: imx: Add fsl,scu-clk yaml file

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In order to replace the fsl,scu txt file from bindings/arm/freescale,
we need to split it between the right subsystems. This patch documents
separately the 'clock' child node of the SCU main node.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Abel Vesa 2022-07-07 15:50:08 +03:00 committed by Shawn Guo
parent 20a051cd4d
commit 9056aa0451
2 changed files with 43 additions and 31 deletions
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31
Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
View File

@ -79,29 +79,6 @@ Required properties:
See detailed Resource ID list from:
include/dt-bindings/firmware/imx/rsrc.h
Clock bindings based on SCU Message Protocol
------------------------------------------------------------
This binding uses the common clock binding[1].
Required properties:
- compatible: Should be one of:
"fsl,imx8dxl-clk"
"fsl,imx8qm-clk"
"fsl,imx8qxp-clk"
followed by "fsl,scu-clk"
- #clock-cells: Should be 2.
Contains the Resource and Clock ID value.
- clocks: List of clock specifiers, must contain an entry for
each required entry in clock-names
- clock-names: Should include entries "xtal_32KHz", "xtal_24MHz"
The clock consumer should specify the desired clock by having the clock
ID in its "clocks" phandle cell.
See the full list of clock IDs from:
include/dt-bindings/clock/imx8qxp-clock.h
Pinctrl bindings based on SCU Message Protocol
------------------------------------------------------------
@ -127,7 +104,6 @@ Required properties for Pinctrl sub nodes:
Please refer to i.MX8QXP Reference Manual for detailed
CONFIG settings.
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
[2] Documentation/devicetree/bindings/power/power-domain.yaml
[3] Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
@ -208,11 +184,6 @@ firmware {
&lsio_mu1 1 3
&lsio_mu1 3 3>;
clk: clk {
compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
#clock-cells = <2>;
};
iomuxc {
compatible = "fsl,imx8qxp-iomuxc";
@ -265,7 +236,5 @@ serial@5a060000 {
...
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_lpuart0>;
clocks = <&uart0_clk IMX_SC_R_UART_0 IMX_SC_PM_CLK_PER>;
clock-names = "ipg";
power-domains = <&pd IMX_SC_R_UART_0>;
};

43
Documentation/devicetree/bindings/clock/fsl,scu-clk.yaml Normal file
View File

@ -0,0 +1,43 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/fsl,scu-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: i.MX SCU Client Device Node - Clock bindings based on SCU Message Protocol
maintainers:
- Abel Vesa <abel.vesa@nxp.com>
description: i.MX SCU Client Device Node
Client nodes are maintained as children of the relevant IMX-SCU device node.
This binding uses the common clock binding.
(Documentation/devicetree/bindings/clock/clock-bindings.txt)
The clock consumer should specify the desired clock by having the clock
ID in its "clocks" phandle cell. See the full list of clock IDs from
include/dt-bindings/clock/imx8qxp-clock.h
properties:
compatible:
items:
- enum:
- fsl,imx8dxl-clk
- fsl,imx8qm-clk
- fsl,imx8qxp-clk
- const: fsl,scu-clk
'#clock-cells':
const: 2
required:
- compatible
- '#clock-cells'
additionalProperties: false
examples:
- |
clock-controller {
compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
#clock-cells = <2>;
};