[v2] Imagination BXS-4-64 MC1 GPU support

[PATCH v2 04/21] dt-bindings: gpu: img: Allow dma-coherent

Posted by Matt Coster 5 days, 23 hours ago

This attribute will be required for the BXS-4-64 MC1 and will be enabled in
the DTS for the TI k3-j721s2 in a subsequent patch; add it now so
dtbs_check doesn't complain later.

Signed-off-by: Matt Coster <matt.coster@imgtec.com>
---
Changes in v2:
- Simplified power-domains constraints
- Link to v1: https://lore.kernel.org/r/20241105-sets-bxs-4-64-patch-v1-v1-4-4ed30e865892@imgtec.com
---
 Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
index c629f54c86c441b4cc9e57925f1d65129cbe285b..9dc55a6d0d4023983a3fc480340351f3fa974ce5 100644
--- a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
+++ b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
@@ -53,6 +53,8 @@ properties:
           - const: a
           - const: b
 
+  dma-coherent: true
+
 required:
   - compatible
   - reg

-- 
2.47.0

Re: [PATCH v2 04/21] dt-bindings: gpu: img: Allow dma-coherent

Posted by Krzysztof Kozlowski 4 days, 4 hours ago

On Mon, Nov 18, 2024 at 01:01:56PM +0000, Matt Coster wrote:
> This attribute will be required for the BXS-4-64 MC1 and will be enabled in
> the DTS for the TI k3-j721s2 in a subsequent patch; add it now so
> dtbs_check doesn't complain later.

That's not a reason. You add it because device is DMA coherent, not for
some imaginary future checker errors.

Best regards,
Krzysztof