| Message ID | 20220211202728.6146-2-alyssa.rosenzweig@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/panfrost: Initial Valhall support | expand |
On 11/02/2022 20:27, alyssa.rosenzweig@collabora.com wrote: > From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> > > From the kernel's perspective, pre-CSF Valhall is more or less > compatible with Bifrost, although they differ to userspace. Add a > compatible for Valhall to the existing Bifrost bindings documentation. > > Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> > Cc: devicetree@vger.kernel.org > --- > Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > index 63a08f3f321d..48aeabd2ed68 100644 > --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > @@ -23,6 +23,7 @@ properties: > - rockchip,px30-mali > - rockchip,rk3568-mali > - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable > + - const: arm,mali-valhall # Mali Valhall GPU model/revision is fully discoverable It might be worth spelling out here that this is *pre-CSF* Valhall. I'm pretty sure we're going to need different bindings for CSF GPUs. Steve > > reg: > maxItems: 1
> > diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > > index 63a08f3f321d..48aeabd2ed68 100644 > > --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > > +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > > @@ -23,6 +23,7 @@ properties: > > - rockchip,px30-mali > > - rockchip,rk3568-mali > > - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable > > + - const: arm,mali-valhall # Mali Valhall GPU model/revision is fully discoverable > > It might be worth spelling out here that this is *pre-CSF* Valhall. I'm > pretty sure we're going to need different bindings for CSF GPUs. Yes, agreed, will make a note for v2.
On Mon, 14 Feb 2022 at 16:23, Steven Price <steven.price@arm.com> wrote: > On 11/02/2022 20:27, alyssa.rosenzweig@collabora.com wrote: > > From the kernel's perspective, pre-CSF Valhall is more or less > > compatible with Bifrost, although they differ to userspace. Add a > > compatible for Valhall to the existing Bifrost bindings documentation. > > > > diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > > index 63a08f3f321d..48aeabd2ed68 100644 > > --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > > +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > > @@ -23,6 +23,7 @@ properties: > > - rockchip,px30-mali > > - rockchip,rk3568-mali > > - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable > > + - const: arm,mali-valhall # Mali Valhall GPU model/revision is fully discoverable > > It might be worth spelling out here that this is *pre-CSF* Valhall. I'm > pretty sure we're going to need different bindings for CSF GPUs. Good point - maybe either make it arm,mali-valhall-jm then? Cheers, Daniel
On 2022-02-11 20:27, alyssa.rosenzweig@collabora.com wrote: > From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> > > From the kernel's perspective, pre-CSF Valhall is more or less > compatible with Bifrost, although they differ to userspace. Add a > compatible for Valhall to the existing Bifrost bindings documentation. > > Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> > Cc: devicetree@vger.kernel.org > --- > Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > index 63a08f3f321d..48aeabd2ed68 100644 > --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml > @@ -23,6 +23,7 @@ properties: > - rockchip,px30-mali > - rockchip,rk3568-mali > - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable > + - const: arm,mali-valhall # Mali Valhall GPU model/revision is fully discoverable This requires all existing Bifrost users to add the Valhall compatible as well - I don't think that's what you want. From what we tossed about on IRC the other week, I'd imagined something more in the shape of: compatible: oneOf: - items: - enum: - vendor,soc-mali - ... - const: arm,mali-bifrost - items: - enum: - vendor,soc-mali - ... - const: arm,mali-valhall - const: arm,mali-bifrost #or not, depending on forward-compatibility preferences Cheers, Robin.
On Fri, 11 Feb 2022 15:27:20 -0500, alyssa.rosenzweig@collabora.com wrote: > From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> > > My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check' on your patch (DT_CHECKER_FLAGS is new in v5.13): yamllint warnings/errors: dtschema/dtc warnings/errors: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.example.dt.yaml: gpu@ffe40000: compatible: ['amlogic,meson-g12a-mali', 'arm,mali-bifrost'] is too short From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml doc reference errors (make refcheckdocs): See https://patchwork.ozlabs.org/patch/1591823 This check can fail if there are any dependencies. The base for a patch series is generally the most recent rc1. If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure 'yamllint' is installed and dt-schema is up to date: pip3 install dtschema --upgrade Please check and re-submit.
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml index 63a08f3f321d..48aeabd2ed68 100644 --- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml +++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml @@ -23,6 +23,7 @@ properties: - rockchip,px30-mali - rockchip,rk3568-mali - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable + - const: arm,mali-valhall # Mali Valhall GPU model/revision is fully discoverable reg: maxItems: 1