On 11/18/24 6:31 PM, Matt Coster wrote: > All Imagination GPUs use three clocks: core, mem and sys. All reasonably > modern Imagination GPUs also support a single-clock mode where the SoC > only hooks up core and the other two are derived internally. On GPUs which > support this mode, it is the default and most commonly used integration. > > Codify this "1 or 3" constraint in our bindings and hang the specifics off > the vendor compatible string to mirror the integration-time choice. > > Signed-off-by: Matt Coster <matt.cos...@imgtec.com> > --- > Changes in v2: > - Simplified clocks constraints (P2) > - Link to v1: > https://lore.kernel.org/r/20241105-sets-bxs-4-64-patch-v1-v1-2-4ed30e865...@imgtec.com > --- > .../devicetree/bindings/gpu/img,powervr-rogue.yaml | 20 > +++++++++++--------- > 1 file changed, 11 insertions(+), 9 deletions(-) > > diff --git a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml > b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml > index > ef7070daf213277d0190fe319e202fdc597337d4..3b5a5b966585ac29ad104c7aef19881eca73ce80 > 100644 > --- a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml > +++ b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml > @@ -29,16 +29,16 @@ properties: > reg: > maxItems: 1 > > - clocks: > - minItems: 1 > - maxItems: 3 > + clocks: true > > clock-names: > - items: > - - const: core > - - const: mem > - - const: sys > - minItems: 1 > + oneOf: > + - items: > + - const: core > + - items: > + - const: core > + - const: mem > + - const: sys Clock for GE8300 in Allwinner A133 is organized with core, bus and additional pll as input. Where "bus" controlled as gate clock and optionally using pll.
If am not wrong, GE8300 also comes under rogue architecture without mem and sys clocks. Does this needs to be considered into separate bindings? Thanks, Parthiban > > interrupts: > maxItems: 1 > @@ -56,11 +56,13 @@ required: > additionalProperties: false > > allOf: > + # Vendor integrations using a single clock domain > - if: > properties: > compatible: > contains: > - const: ti,am62-gpu > + anyOf: > + - const: ti,am62-gpu > then: > properties: > clocks: >
