On Mon, 17 Feb 2025 07:36:22 +1300 Ryan Walklin <ryan@xxxxxxxxxxxxx> wrote: Hi, > The Allwinner H616 and variants have a new display engine revision > (DE33). > > The mixer configuration registers are significantly different to the DE3 > and DE2 revisions, being split into separate top and display blocks, > therefore a fallback for the mixer compatible is not provided. > > Add a display engine mixer binding for the DE33. > > Signed-off-by: Ryan Walklin <ryan@xxxxxxxxxxxxx> > Acked-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> > Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx> > > --- > Changelog v2..v3: > - Separate content into three patches for three separate subsystems > > Changelog v5..v6: > - increase reg maxItems to 3 and add conditional for h616-de33 > --- > .../allwinner,sun8i-a83t-de2-mixer.yaml | 21 ++++++++++++++++++- > 1 file changed, 20 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml > index b75c1ec686ad2..274f5e6327333 100644 > --- a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml > +++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml > @@ -24,9 +24,11 @@ properties: > - allwinner,sun50i-a64-de2-mixer-0 > - allwinner,sun50i-a64-de2-mixer-1 > - allwinner,sun50i-h6-de3-mixer-0 > + - allwinner,sun50i-h616-de33-mixer-0 > > reg: > - maxItems: 1 > + minItems: 1 > + maxItems: 3 What are those three regions? I wonder if we should have reg-names here, to fix the order, and to document them on the way? > > clocks: > items: > @@ -61,6 +63,23 @@ properties: > required: > - port@1 > > +allOf: > + - if: > + properties: > + compatible: > + enum: > + - allwinner,sun50i-h616-de33-mixer-0 > + > + then: > + properties: > + reg: > + maxItems: 3 Should we override minItems here as well? I guess any driver would need all three region to work? Cheers, Andre > + > + else: > + properties: > + reg: > + maxItems: 1 > + > required: > - compatible > - reg
