The Broadcom AMAC controller is DMA coherent on some platforms, so allow
the dma-coherent property.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 Documentation/devicetree/bindings/net/brcm,amac.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/brcm,amac.yaml b/Documentation/devicetree/bindings/net/brcm,amac.yaml
index 210fb29c4e7b..be1bf07985e4 100644
--- a/Documentation/devicetree/bindings/net/brcm,amac.yaml
+++ b/Documentation/devicetree/bindings/net/brcm,amac.yaml
@@ -73,6 +73,8 @@ properties:
       - const: idm_base
       - const: nicpm_base
 
+  dma-coherent: true
+
 unevaluatedProperties: false
 
 examples:
-- 
2.51.0

Hi Rob,

On 12/15/25 10:27 PM, Rob Herring (Arm) wrote:
> The Broadcom AMAC controller is DMA coherent on some platforms, so allow
> the dma-coherent property.
> 
> Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

I assume you are targeting net-next here? If so, please be aware that
net-next is currently closed due to the winter break up to Jan 2.
Otherwise feel free to take it via the device tree.

Thanks,

Paolo

On Fri, Dec 19, 2025 at 10:14:36AM +0100, Paolo Abeni wrote:
> Hi Rob,
> 
> On 12/15/25 10:27 PM, Rob Herring (Arm) wrote:
> > The Broadcom AMAC controller is DMA coherent on some platforms, so allow
> > the dma-coherent property.
> > 
> > Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
> 
> I assume you are targeting net-next here? 

Well, yes. I remember to add "net-next" about 50% of the time. Sigh.

> If so, please be aware that
> net-next is currently closed due to the winter break up to Jan 2.
> Otherwise feel free to take it via the device tree.

Okay, I'll just take it.

Rob

On 12/15/25 13:27, 'Rob Herring (Arm)' via BCM-KERNEL-FEEDBACK-LIST,PDL 
wrote:
> The Broadcom AMAC controller is DMA coherent on some platforms, so allow
> the dma-coherent property.
> 
> Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian