Re: [PATCH V5 1/6] dt-bindings: soc: add i.MX93 SRC
From: Rob Herring <robh@kernel.org>
Date: 2022-07-18 18:01:17
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On Mon, Jul 11, 2022 at 02:24:47PM +0800, Peng Fan (OSS) wrote:
quoted hunk ↗ jump to hunk
From: Peng Fan <peng.fan@nxp.com> Add bindings for i.MX93 System Reset Controller(SRC). SRC supports resets and power gating for mixes. Signed-off-by: Peng Fan <peng.fan@nxp.com> --- .../bindings/soc/imx/fsl,imx93-src.yaml | 95 +++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yamldiff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml new file mode 100644 index 000000000000..5eb22c993d59 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml@@ -0,0 +1,95 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/imx/fsl,imx93-src.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX93 System Reset Controller + +maintainers: + - Peng Fan <peng.fan@nxp.com> + +description: | + The System Reset Controller (SRC) is responsible for the generation of + all the system reset signals and boot argument latching. + + Its main functions are as follows, + - Deals with all global system reset sources from other modules, + and generates global system reset. + - Responsible for power gating of MIXs (Slices) and their memory + low power control. + +properties: + compatible: + items: + - const: fsl,imx93-src + - const: syscon + + reg: + maxItems: 1 + + ranges: true + + '#address-cells': + const: 1 + + '#size-cells': + const: 1 + +patternProperties: + "power-domain@[0-9a-f]+$": + $ref: /schemas/power/power-domain.yaml#
No need to reference this as you have to define '#power-domain-cells' constraints anyways.
+ + type: object + properties: + compatible: + items: + - const: fsl,imx93-src-slice + + '#power-domain-cells': + const: 0 + + reg: + maxItems: 2
You need to define what each entry is.
+
+ clocks:
+ description: |
+ A number of phandles to clocks that need to be enabled
+ during domain power-up sequencing to ensure reset
+ propagation into devices located inside this power domain.
+ minItems: 1
+ maxItems: 5
+
+ required:
+ - compatible
+ - '#power-domain-cells'
+ - reg
+
+required:
+ - compatible
+ - reg
+ - ranges
+ - '#address-cells'
+ - '#size-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx93-clock.h>
+
+ system-controller@44460000 {
+ compatible = "fsl,imx93-src", "syscon";
+ reg = <0x44460000 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ mediamix: power-domain@0 {
+ compatible = "fsl,imx93-src-slice";
+ reg = <0x44462400 0x400>, <0x44465800 0x400>;
+ #power-domain-cells = <0>;
+ clocks = <&clk IMX93_CLK_MEDIA_AXI>,
+ <&clk IMX93_CLK_MEDIA_APB>;
+ };
+ };
--
2.25.1
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