On 14/11/2022 16:53, Konrad Dybcio wrote: > > On 14/11/2022 14:00, Krzysztof Kozlowski wrote: >> On 14/11/2022 12:17, Konrad Dybcio wrote: >>> On 14/11/2022 12:01, Krzysztof Kozlowski wrote: >>>> On 14/11/2022 11:42, Konrad Dybcio wrote: >>>>> Some SMMUs require that a vote is held on as much as 3 separate PDs >>>>> (hello Qualcomm). Allow it in bindings. >>>>> >>>>> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> >>>>> --- >>>>> Changes since v1: >>>>> - Add minItems >>>>> >>>>> Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 3 ++- >>>>> 1 file changed, 2 insertions(+), 1 deletion(-) >>>>> >>>>> diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml >>>>> index 9066e6df1ba1..82bc696de662 100644 >>>>> --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml >>>>> +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml >>>>> @@ -159,7 +159,8 @@ properties: >>>>> through the TCU's programming interface. >>>>> >>>>> power-domains: >>>>> - maxItems: 1 >>>>> + minItems: 0 >>>> It cannot be 0. >>>> >>>> minItems: 1 >>>> >>>> Anyway you still need to restrict it per variant, as I said in previous >>>> version. >>> Hm.. I'm not entirely sure what you mean.. Should I add a list of >>> compatibles >> Yes and limit it to maxItems: 1 for "else". > > I tried adding: > > > > - if: > properties: > compatible: > contains: > enum: > - qcom,sm6375-smmu-500 > then: > properties: > power-domains: > minItems: 3 > maxItems: 3 > else: > properties: > power-domains: > maxItems: 1 > > > Right under the nvidia reg if-else in the allOf, but dtbs_check throws > errors like: > > > /home/konrad/linux/arch/arm64/boot/dts/qcom/msm8998-sony-xperia-yoshino-poplar.dtb: > iommu@5040000: 'power-domains' does not match any of the regexes: > 'pinctrl-[0-9]+' > > > Any clues as to why? I don't know what code do you have there, but generic pattern is: https://elixir.bootlin.com/linux/v5.19-rc6/source/Documentation/devicetree/bindings/clock/samsung,exynos7-clock.yaml#L38 Best regards, Krzysztof
