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SubjectRe: [PATCH v4 1/2] dt-bindings: edac: al-mc-edac: Amazon's Annapurna Labs Memory Controller EDAC
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Thanks Rob,

On 10/11/2019 4:29 PM, Rob Herring wrote:
> On Thu, Oct 10, 2019 at 02:54:13PM +0300, Talel Shenhar wrote:
>> Document Amazon's Annapurna Labs Memory Controller EDAC SoC binding.
>>
>> Signed-off-by: Talel Shenhar <talel@amazon.com>
>> ---
>> .../bindings/edac/amazon,al-mc-edac.yaml | 50 ++++++++++++++++++++++
>> 1 file changed, 50 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml b/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml
>> new file mode 100644
>> index 00000000..f66b094
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml
>> @@ -0,0 +1,50 @@
>> +# SPDX-License-Identifier: GPL-2.0
> Forgot to mention, please make new bindings (GPL-2.0-only OR BSD-2-Clause).
ack, shall be part of v5
> + interrupts:
>> + maxItems: 2
>> + items:
>> + - description: uncorrectable error interrupt
>> + - description: correctable error interrupt
>> +
>> + interrupt-names:
>> + maxItems: 2
>> + items:
>> + - const: ue
>> + - const: ce
> Now the example fails to build:
>
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.example.dt.yaml:
> edac@f0080000: interrupt-names: ['ue'] is too short
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.example.dt.yaml:
> edac@f0080000: interrupts: [[20, 4]] is too short
>
> You either need to always have the CE irq or add 'minItems: 1' to both.

Indeed adding the minItems to 1 solves this.

However, shouldn't it really be 0? interrupts are not mandatory?

What is the way to capture this in the new binding?

> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + edac@f0080000 {
> + compatible = "amazon,al-mc-edac";
> + reg = <0x0 0xf0080000 0x0 0x00010000>;
> + interrupt-parent = <&amazon_al_system_fabric>;
> + interrupt-names = "ue";
> + interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
> + };
> --
> 2.7.4
>

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