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The description of fsl,extirq-map is best effort: it looks like the devicetree schema doesn't really like vendor properties getting too complicated, and puts a bunch of descriptions on what they can and can't describe. An array of uint32s is the best I could come up with. It doesn't help, either, that the schemas/interrupt-controller.yaml definition for interrupt-map, which I was planning to use as an inspiration, is "true # FIXME", all things which aren't valid in vendor properties. Signed-off-by: Vladimir Oltean --- .../interrupt-controller/fsl,ls-extirq.txt | 56 --------- .../interrupt-controller/fsl,ls-extirq.yaml | 110 ++++++++++++++++++ 2 files changed, 110 insertions(+), 56 deletions(-) delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.txt create mode 100644 Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.txt b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.txt deleted file mode 100644 index cddf1aa032be..000000000000 --- a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.txt +++ /dev/null @@ -1,56 +0,0 @@ -* Freescale Layerscape external IRQs - -Some Layerscape SOCs (LS1021A, LS1043A, LS1046A -LS1088A, LS208xA, LX216xA) support inverting -the polarity of certain external interrupt lines. - -The device node must be a child of the node representing the -Supplemental Configuration Unit (SCFG). - -Required properties: -- compatible: should be "fsl,-extirq", e.g. "fsl,ls1021a-extirq". - "fsl,ls1043a-extirq": for LS1043A, LS1046A. - "fsl,ls1088a-extirq": for LS1088A, LS208xA, LX216xA. -- #interrupt-cells: Must be 2. The first element is the index of the - external interrupt line. The second element is the trigger type. -- #address-cells: Must be 0. -- interrupt-controller: Identifies the node as an interrupt controller -- reg: Specifies the Interrupt Polarity Control Register (INTPCR) in - the SCFG or the External Interrupt Control Register (IRQCR) in - the ISC. -- fsl,extirq-map: An array of elements through which the mapping between - external interrupts and GIC interrupts is specified. The first member of each - array element is the index of the extirq line. The second member must be - zero. The third member must be a phandle to the interrupt parent (the GIC). - The remaining number of members in an array element depends on the - #interrupt-cells property of the interrupt parent, and are used to specify - the parent interrupt. - -Example: - scfg: scfg@1570000 { - compatible = "fsl,ls1021a-scfg", "syscon"; - reg = <0x0 0x1570000 0x0 0x10000>; - big-endian; - #address-cells = <1>; - #size-cells = <1>; - ranges = <0x0 0x0 0x1570000 0x10000>; - - extirq: interrupt-controller@1ac { - compatible = "fsl,ls1021a-extirq"; - #interrupt-cells = <2>; - #address-cells = <0>; - interrupt-controller; - reg = <0x1ac 4>; - fsl,extirq-map = - <0 0 &gic GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>, - <1 0 &gic GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>, - <2 0 &gic GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>, - <3 0 &gic GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>, - <4 0 &gic GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>, - <5 0 &gic GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>; - }; - }; - - - interrupts-extended = <&gic GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>, - <&extirq 1 IRQ_TYPE_LEVEL_LOW>; diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml new file mode 100644 index 000000000000..ead5f58949b8 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml @@ -0,0 +1,110 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/interrupt-controller/fsl,ls-extirq.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale Layerscape external interrupt driver + +maintainers: + - Rasmus Villemoes + +description: | + Some Layerscape SOCs (LS1021A, LS1043A, LS1046A LS1088A, LS208xA, LX216xA) + support inverting the polarity of certain external interrupt lines. + The device node must be a child of the node representing the + Supplemental Configuration Unit (SCFG). + +properties: + compatible: + oneOf: + - const: fsl,ls1021a-extirq + - const: fsl,ls1043a-extirq + - const: fsl,ls1088a-extirq + - items: + - const: fsl,ls1046a-extirq + - const: fsl,ls1043a-extirq + - items: + - const: fsl,lx2160a-extirq + - const: fsl,ls1088a-extirq + - items: + - const: fsl,ls2080a-extirq + - const: fsl,ls1088a-extirq + + reg: + description: | + Specifies the offset to the Interrupt Polarity Control Register (INTPCR) + in the SCFG or the External Interrupt Control Register (IRQCR) in the + ISC. + maxItems: 1 + + "#interrupt-cells": + description: | + Specifies the number of cells needed to encode an interrupt source. Must + be equal to 2. The first element is the index of the external interrupt + line. The second element is the trigger type. + const: 2 + + "#address-cells": + const: 0 + + interrupt-controller: true + + fsl,extirq-map: + description: | + An array of elements through which the mapping between external + interrupts and GIC interrupts is specified. This isn't really a phandle + array, it just contains some phandles. It should really be an array where + the items are extirq-map-spec elements, but it seems like the + vendor-props.yaml don't allow us to reference such things. + type: object + $ref: "/schemas/types.yaml#/definitions/phandle-array" + +required: + - compatible + - reg + - "#interrupt-cells" + - interrupt-controller + - fsl,extirq-map + +additionalProperties: false + +$defs: + extirq-map-spec: + description: | + The first member of each array element is the index of the extirq line. + The second member must be zero. The third member must be a phandle to the + interrupt parent. The remaining number of members in an array element + depends on the "#interrupt-cells" property of the interrupt parent, and + are used to specify the parent interrupt. + type: array + items: + $ref: "/schemas/types.yaml#/definitions/cell" + minItems: 4 + maxItems: 4095 + +examples: + - | + scfg: scfg@1570000 { + compatible = "fsl,ls1021a-scfg", "syscon"; + reg = <0x0 0x1570000 0x0 0x10000>; + big-endian; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x0 0x1570000 0x10000>; + + extirq: interrupt-controller@1ac { + compatible = "fsl,ls1021a-extirq"; + #interrupt-cells = <2>; + #address-cells = <0>; + interrupt-controller; + reg = <0x1ac 4>; + fsl,extirq-map = + <0 0 &gic GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>, + <1 0 &gic GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>, + <2 0 &gic GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>, + <3 0 &gic GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>, + <4 0 &gic GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>, + <5 0 &gic GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>; + }; + };