Hi Paul, On Thu, 2021-01-07 at 14:40 +0100, Paul Kocialkowski wrote: > The Rockchip PX30 SoC has a Hantro VPU that features a decoder (VDPU2) > and an encoder (VEPU2). It is similar to the RK3399's VPU but takes an > extra clock (SCLK). > > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx> > --- > .../bindings/media/rockchip-vpu.yaml | 25 +++++++++++++------ > 1 file changed, 17 insertions(+), 8 deletions(-) > > diff --git a/Documentation/devicetree/bindings/media/rockchip-vpu.yaml b/Documentation/devicetree/bindings/media/rockchip-vpu.yaml > index c81dbc3e8960..c446b9ead21b 100644 > --- a/Documentation/devicetree/bindings/media/rockchip-vpu.yaml > +++ b/Documentation/devicetree/bindings/media/rockchip-vpu.yaml > @@ -15,10 +15,13 @@ description: > > properties: > compatible: > - enum: > - - rockchip,rk3288-vpu > - - rockchip,rk3328-vpu > - - rockchip,rk3399-vpu > + oneOf: > + - const: rockchip,rk3288-vpu > + - const: rockchip,rk3328-vpu > + - const: rockchip,rk3399-vpu > + - items: > + - const: rockchip,px30-vpu > + - const: rockchip,rk3399-vpu > > reg: > maxItems: 1 > @@ -35,12 +38,18 @@ properties: > - const: vdpu > > clocks: > - maxItems: 2 > + minItems: 2 > + maxItems: 3 > > clock-names: > - items: > - - const: aclk > - - const: hclk > + oneOf: > + - items: > + - const: aclk > + - const: hclk > + - items: > + - const: aclk > + - const: hclk > + - const: sclk You could make this: clock-names: minItems: 2 items: - const: aclk - const: hclk - const: sclk And then: allOf: - if: properties: compatible: contains: const: rockchip,px30-vpu then: properties: clock-names: minItems: 3 to make sure each variant has the correct clocks set. regards Philipp