On Sat, Jan 06, 2024 at 07:51:33AM +0000, Petlozu Pravareshwar wrote: > Scratch address space register is used to store reboot reason. For > some Tegra234 systems, the scratch space is not available to store > the reboot reason. This is because scratch region on these systems > is not accessible by the kernel as restricted by the Hypervisor. > Such systems would delist scratch aperture from PMC DT node. > > Accordingly, this change makes "scratch" as an optional aperture for > Tegra234 in PMC dt-binding document. > > Signed-off-by: Petlozu Pravareshwar <petlozup@xxxxxxxxxx> > --- > .../arm/tegra/nvidia,tegra186-pmc.yaml | 83 +++++++++++++------ > 1 file changed, 58 insertions(+), 25 deletions(-) > > diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml > index 0faa403f68c8..2716610a1a02 100644 > --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml > +++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra186-pmc.yaml > @@ -23,12 +23,7 @@ properties: > > reg-names: > minItems: 4 > - items: > - - const: pmc > - - const: wake > - - const: aotag > - - const: scratch > - - const: misc > + maxItems: 5 You can just make the 4th entry: enum: [ scratch, misc ] > > interrupt-controller: true > > @@ -41,25 +36,63 @@ properties: > description: If present, inverts the PMU interrupt signal. > $ref: /schemas/types.yaml#/definitions/flag > > -if: > - properties: > - compatible: > - contains: > - const: nvidia,tegra186-pmc > -then: > - properties: > - reg: > - maxItems: 4 > - > - reg-names: > - maxItems: 4 > -else: > - properties: > - reg: > - minItems: 5 > - > - reg-names: > - minItems: 5 > +allOf: > + - if: > + properties: > + compatible: > + contains: > + const: nvidia,tegra186-pmc > + then: > + properties: > + reg: > + maxItems: 4 > + reg-names: > + items: > + - const: pmc > + - const: wake > + - const: aotag > + - const: scratch > + > + - if: > + properties: > + compatible: > + contains: > + const: nvidia,tegra194-pmc > + then: > + properties: > + reg: > + minItems: 5 > + reg-names: > + items: > + - const: pmc > + - const: wake > + - const: aotag > + - const: scratch > + - const: misc > + > + - if: > + properties: > + compatible: > + contains: > + const: nvidia,tegra234-pmc > + then: > + properties: > + reg: > + minItems: 4 > + maxItems: 5 > + reg-names: > + anyOf: > + - items: > + - const: pmc > + - const: wake > + - const: aotag > + - const: misc > + - items: > + - const: pmc > + - const: wake > + - const: aotag > + - const: scratch > + - const: misc > > patternProperties: > "^[a-z0-9]+-[a-z0-9]+$": > -- > 2.17.1 >
