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dt-bindings: arm: omap: Convert L4 interconnect to DT schema
Convert the Texas Instruments OMAP L4 interconnect bus bindings to DT schema. During the conversion, several updates were made: - Defined the compatible property as an array to require the TI-specific string first, followed by either 'simple-bus' or 'simple-pm-bus'. - Added a 'select' block to ensure this schema is only applied to TI-specific nodes, preventing duplicate schema warnings against the core simple-pm-bus.yaml. - Added the L4 compatible strings used by the boards but missing from the text binding, and corrected the 'ti,am3-l4-wkup' typo to 'ti,am33xx-l4-wkup'. - Made 'reg' and 'reg-names' optional. Signed-off-by: Eduard Bostina <egbostina@gmail.com> Link: https://patch.msgid.link/20260810134051.380538-1-egbostina@gmail.com [robh: move to bindings/bus/] Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
This commit is contained in:
Eduard Bostina
Rob Herring (Arm)
parent
9d56904975
commit
f963a45a11
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L4 interconnect bindings
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These bindings describe the OMAP SoCs L4 interconnect bus.
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Required properties:
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- compatible : Should be "ti,omap2-l4" for OMAP2 family l4 core bus
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Should be "ti,omap2-l4-wkup" for OMAP2 family l4 wkup bus
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Should be "ti,omap3-l4-core" for OMAP3 family l4 core bus
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Should be "ti,omap4-l4-cfg" for OMAP4 family l4 cfg bus
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Should be "ti,omap4-l4-per" for OMAP4 family l4 per bus
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Should be "ti,omap4-l4-wkup" for OMAP4 family l4 wkup bus
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Should be "ti,omap5-l4-cfg" for OMAP5 family l4 cfg bus
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Should be "ti,omap5-l4-wkup" for OMAP5 family l4 wkup bus
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Should be "ti,dra7-l4-cfg" for DRA7 family l4 cfg bus
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Should be "ti,dra7-l4-wkup" for DRA7 family l4 wkup bus
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Should be "ti,am3-l4-wkup" for AM33xx family l4 wkup bus
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Should be "ti,am4-l4-wkup" for AM43xx family l4 wkup bus
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- ranges : contains the IO map range for the bus
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- reg : registers link agent and interconnect agent and access protection
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- reg-names : "la" for link agent, "ia0" to "ia3" for one to three
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interconnect agent instances, "ap" for access if it exists
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Examples:
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l4: interconnect@48000000 {
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compatible "ti,omap4-l4-per", "simple-bus";
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reg = <0x48000000 0x800>,
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<0x48000800 0x800>,
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<0x48001000 0x400>,
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<0x48001400 0x400>,
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<0x48001800 0x400>,
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<0x48001c00 0x400>;
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reg-names = "ap", "la", "ia0", "ia1", "ia2", "ia3";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0 0x48000000 0x100000>;
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};
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140
Documentation/devicetree/bindings/bus/ti,omap-l4.yaml
Normal file
140
Documentation/devicetree/bindings/bus/ti,omap-l4.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/bus/ti,omap-l4.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: TI OMAP SoCs L4 interconnect bus
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maintainers:
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- Eduard Bostina <egbostina@gmail.com>
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description:
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These bindings describe the OMAP SoCs L4 interconnect bus.
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select:
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properties:
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compatible:
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contains:
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enum:
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- ti,omap2-l4
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- ti,omap2-l4-wkup
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- ti,omap3-l4-core
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- ti,omap4-l4-abe
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- ti,omap4-l4-cfg
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- ti,omap4-l4-per
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- ti,omap4-l4-wkup
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- ti,omap5-l4-abe
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- ti,omap5-l4-cfg
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- ti,omap5-l4-per
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- ti,omap5-l4-wkup
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- ti,dra7-l4-cfg
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- ti,dra7-l4-per1
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- ti,dra7-l4-per2
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- ti,dra7-l4-per3
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- ti,dra7-l4-wkup
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- ti,am33xx-l4-fast
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- ti,am33xx-l4-fw
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- ti,am33xx-l4-mpuss
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- ti,am33xx-l4-per
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- ti,am33xx-l4-wkup
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- ti,am4-l4-fast
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- ti,am4-l4-per
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- ti,am4-l4-wkup
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- ti,dm814-l4hs
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- ti,dm814-l4ls
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required:
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- compatible
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properties:
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compatible:
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items:
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- enum:
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- ti,omap2-l4
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- ti,omap2-l4-wkup
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- ti,omap3-l4-core
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- ti,omap4-l4-abe
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- ti,omap4-l4-cfg
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- ti,omap4-l4-per
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- ti,omap4-l4-wkup
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- ti,omap5-l4-abe
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- ti,omap5-l4-cfg
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- ti,omap5-l4-per
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- ti,omap5-l4-wkup
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- ti,dra7-l4-cfg
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- ti,dra7-l4-per1
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- ti,dra7-l4-per2
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- ti,dra7-l4-per3
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- ti,dra7-l4-wkup
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- ti,am33xx-l4-fast
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- ti,am33xx-l4-fw
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- ti,am33xx-l4-mpuss
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- ti,am33xx-l4-per
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- ti,am33xx-l4-wkup
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- ti,am4-l4-fast
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- ti,am4-l4-per
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- ti,am4-l4-wkup
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- ti,dm814-l4hs
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- ti,dm814-l4ls
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- enum:
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- simple-bus
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- simple-pm-bus
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reg:
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minItems: 1
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maxItems: 6
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reg-names:
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minItems: 1
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maxItems: 6
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items:
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enum:
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- ap
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- la
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- ia0
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- ia1
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- ia2
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- ia3
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ranges: true
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dma-ranges: true
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clocks:
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maxItems: 1
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clock-names:
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items:
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- const: fck
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power-domains:
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maxItems: 1
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"#address-cells":
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const: 1
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"#size-cells":
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const: 1
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required:
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- compatible
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- ranges
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additionalProperties:
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type: object
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examples:
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- |
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bus@48000000 {
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compatible = "ti,omap4-l4-per", "simple-bus";
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reg = <0x48000000 0x800>,
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<0x48000800 0x800>,
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<0x48001000 0x400>,
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<0x48001400 0x400>,
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<0x48001800 0x400>,
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<0x48001c00 0x400>;
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reg-names = "ap", "la", "ia0", "ia1", "ia2", "ia3";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0 0x48000000 0x100000>;
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};
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