On Fri, Nov 15, 2019 at 11:28 AM Alexandre Torgue
<alexandre.torgue@xxxxxx> wrote:
>
>
>
> On 11/14/19 6:18 PM, Rob Herring wrote:
> > On Thu, Nov 14, 2019 at 10:41 AM Alexandre Torgue
> > <alexandre.torgue@xxxxxx> wrote:
> >>
> >> Convert the STM32 external interrupt controller (EXTI) binding to DT
> >> schema format using json-schema.
> >>
> >> Signed-off-by: Alexandre Torgue <alexandre.torgue@xxxxxx>
> >> ---
> >>
> >> Hi Rob,
> >>
> >> I planned to use "additionalProperties: false" for this schema but as I add a
> >> property under condition, I got an error (property added under contion seems
> >> to be detected as an "additional" property and then error is raised).
> >>
> >> Is there a way to fix that ?
> >
> > See below.
> >
> >>
> >> regards
> >> Alex
> >>
> >> diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt
> >> deleted file mode 100644
> >> index cd01b2292ec6..000000000000
> >> --- a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt
> >> +++ /dev/null
> >> @@ -1,29 +0,0 @@
> >> -STM32 External Interrupt Controller
> >> -
> >> -Required properties:
> >> -
> >> -- compatible: Should be:
> >> - "st,stm32-exti"
> >> - "st,stm32h7-exti"
> >> - "st,stm32mp1-exti"
> >> -- reg: Specifies base physical address and size of the registers
> >> -- interrupt-controller: Indentifies the node as an interrupt controller
> >> -- #interrupt-cells: Specifies the number of cells to encode an interrupt
> >> - specifier, shall be 2
> >> -- interrupts: interrupts references to primary interrupt controller
> >> - (only needed for exti controller with multiple exti under
> >> - same parent interrupt: st,stm32-exti and st,stm32h7-exti)
> >> -
> >> -Optional properties:
> >> -
> >> -- hwlocks: reference to a phandle of a hardware spinlock provider node.
> >> -
> >> -Example:
> >> -
> >> -exti: interrupt-controller@40013c00 {
> >> - compatible = "st,stm32-exti";
> >> - interrupt-controller;
> >> - #interrupt-cells = <2>;
> >> - reg = <0x40013C00 0x400>;
> >> - interrupts = <1>, <2>, <3>, <6>, <7>, <8>, <9>, <10>, <23>, <40>, <41>, <42>, <62>, <76>;
> >> -};
> >> diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
> >> new file mode 100644
> >> index 000000000000..39be37e1e532
> >> --- /dev/null
> >> +++ b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
> >> @@ -0,0 +1,82 @@
> >> +# SPDX-License-Identifier: GPL-2.0
> >
> > If ST has copyright on the old binding, can you add BSD here.
> >
>
> I will.
>
> >> +%YAML 1.2
> >> +---
> >> +$id: http://devicetree.org/schemas/interrupt-controller/st,stm32-exti.yaml#
> >> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> >> +
> >> +title: STM32 External Interrupt Controller Device Tree Bindings
> >> +
> >> +maintainers:
> >> + - Alexandre Torgue <alexandre.torgue@xxxxxx>
> >> + - Ludovic Barre <ludovic.barre@xxxxxx>
> >> +
> >> +properties:
> >> + compatible:
> >> + oneOf:
> >> + - items:
> >> + - enum:
> >> + - st,stm32-exti
> >> + - st,stm32h7-exti
> >> + - items:
> >> + - enum:
> >> + - st,stm32mp1-exti
> >> + - const: syscon
> >> +
> >> + "#interrupt-cells":
> >> + const: 2
> >> +
> >> + reg:
> >> + maxItems: 1
> >> +
> >> + interrupt-controller: true
> >> +
> >> + hwlocks:
> >> + maxItems: 1
> >> + description:
> >> + Reference to a phandle of a hardware spinlock provider node.
> >> +
> >> +required:
> >> + - "#interrupt-cells"
> >> + - compatible
> >> + - reg
> >> + - interrupt-controller
> >> +
> >> +allOf:
> >> + - $ref: /schemas/interrupt-controller.yaml#
> >> + - if:
> >> + properties:
> >> + compatible:
> >> + contains:
> >> + enum:
> >> + - st,stm32-exti
> >> + - st,stm32h7-exti
> >> + then:
> >> + properties:
> >> + interrupts:
> >> + allOf:
> >> + - $ref: /schemas/types.yaml#/definitions/uint32-array
> >
> > Standard property, doesn't need a type. You just need 'maxItems' or an
> > 'items' list if the index is not meaningful. This appears to be the
> > former case.
>
> ok
>
> >
> >> + description:
> >> + Interrupts references to primary interrupt controller
> >> + required:
> >> + - interrupts
> >
> > You can move the definition to the main section as you only need
> > 'required' here. That should fix your additionalProperties issue.
> >
> Doing that it fails as I don't have interrupts define for mp1
> compatible. Maybe I missed something ?
Like this:
properties:
...
interrupts:
maxItems: ??
minItems: ??
allOf:
- $ref: /schemas/interrupt-controller.yaml#
- if:
properties:
compatible:
contains:
enum:
- st,stm32-exti
- st,stm32h7-exti
then:
required:
- interrupts
