On Tue, Mar 16, 2021 at 04:05:58PM -0600, Rob Herring wrote: > On Tue, Mar 09, 2021 at 01:50:03AM +0530, Vaibhav Gupta wrote: > > From: Peter Ujfalusi <peter.ujfalusi@xxxxxx> > > > > Add the AM64 version of sa2ul to the compatible list. > > > > [v_gupta@xxxxxx: Conditional dma-coherent requirement, clocks] > > Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx> > > Signed-off-by: Vaibhav Gupta <v_gupta@xxxxxx> > > --- > > .../devicetree/bindings/crypto/ti,sa2ul.yaml | 40 +++++++++++++++---- > > 1 file changed, 33 insertions(+), 7 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml b/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml > > index 1d48ac712b23..6eb9acd564c2 100644 > > --- a/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml > > +++ b/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml > > @@ -14,6 +14,7 @@ properties: > > enum: > > - ti,j721e-sa2ul > > - ti,am654-sa2ul > > + - ti,am64-sa2ul > > > > reg: > > maxItems: 1 > > @@ -45,19 +46,44 @@ properties: > > description: > > Address translation for the possible RNG child node for SA2UL > > > > + clocks: > > + items: > > + - description: Clock used by PKA > > + - description: Main Input Clock > > + - description: Clock used by rng > > + > > + clock-names: > > + items: > > + - const: pka_in_clk > > + - const: x1_clk > > + - const: x2_clk > > + > > patternProperties: > > "^rng@[a-f0-9]+$": > > type: object > > description: > > Child RNG node for SA2UL > > > > -required: > > - - compatible > > - - reg > > - - power-domains > > - - dmas > > - - dma-names > > - - dma-coherent > > +if: > > + properties: > > + compatible: > > + const: ti,am64-sa2ul > > +then: > > + required: > > + - compatible > > + - reg > > + - power-domains > > + - dmas > > + - dma-names > > + > > +else: > > + required: > > + - compatible > > + - reg > > + - power-domains > > + - dmas > > + - dma-names > > + - dma-coherent > > The only difference is 'dma-coherent'. You can simplify the if/then to > just that. Hello Rob, I agree with your point. But with that case we will have to modify/append the 'required' list. Something like: if !(properties.compatible == 'ti,am64-sa2ul') required += dma-coherent I even tried to use anchors but that didn't help. I didn't find it even in examples. Any hint how to achieve that? Thanks, Vaibhav