From: Alexander Sverdlin <alexander.sverdlin@siemens.com>

Add new slew-rate uint32 property. This property is only applicable for
ports in R(G)MII mode and allows for slew rate reduction in comparison to
"normal" default configuration with the purpose to reduce radiated
emissions.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
---
Changelog:
v3:
- use [pinctrl] standard "slew-rate" property as suggested by Rob
  https://lore.kernel.org/all/20251219204324.GA3881969-robh@kernel.org/
v2:
- unchanged

 .../devicetree/bindings/net/dsa/lantiq,gswip.yaml          | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml b/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
index 205b683849a53..277b121b159d5 100644
--- a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
@@ -111,6 +111,13 @@ patternProperties:
             description:
               Configure the RMII reference clock to be a clock output
               rather than an input. Only applicable for RMII mode.
+          slew-rate:
+            $ref: /schemas/types.yaml#/definitions/uint32
+            enum: [0, 1]
+            description: |
+              Configure R(G)MII TXD/TXC pads' slew rate:
+              0: "normal"
+              1: "slow"
           tx-internal-delay-ps:
             enum: [0, 500, 1000, 1500, 2000, 2500, 3000, 3500]
             description:
-- 
2.52.0

Please disregard the two patches without net-next tag, they were meant
for net-next, I've just re-sent them properly.

On Mon, 2026-01-05 at 18:53 +0100, A. Sverdlin wrote:
> From: Alexander Sverdlin <alexander.sverdlin@siemens.com>
> 
> Add new slew-rate uint32 property. This property is only applicable for
> ports in R(G)MII mode and allows for slew rate reduction in comparison to
> "normal" default configuration with the purpose to reduce radiated
> emissions.
> 
> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
> ---
> Changelog:
> v3:
> - use [pinctrl] standard "slew-rate" property as suggested by Rob
>   https://lore.kernel.org/all/20251219204324.GA3881969-robh@kernel.org/
> v2:
> - unchanged
> 
>  .../devicetree/bindings/net/dsa/lantiq,gswip.yaml          | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml b/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
> index 205b683849a53..277b121b159d5 100644
> --- a/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
> +++ b/Documentation/devicetree/bindings/net/dsa/lantiq,gswip.yaml
> @@ -111,6 +111,13 @@ patternProperties:
>              description:
>                Configure the RMII reference clock to be a clock output
>                rather than an input. Only applicable for RMII mode.
> +          slew-rate:
> +            $ref: /schemas/types.yaml#/definitions/uint32
> +            enum: [0, 1]
> +            description: |
> +              Configure R(G)MII TXD/TXC pads' slew rate:
> +              0: "normal"
> +              1: "slow"
>            tx-internal-delay-ps:
>              enum: [0, 500, 1000, 1500, 2000, 2500, 3000, 3500]
>              description:

-- 
Alexander Sverdlin
Siemens AG
www.siemens.com

On Mon, 5 Jan 2026 18:00:52 +0000 Sverdlin, Alexander wrote:
> Please disregard the two patches without net-next tag, they were meant
> for net-next, I've just re-sent them properly.

Repost to include net-next in the subject are _really_ not necessary.
If you waited 24h according to the rules we'd have saved ourselves
this pointless repost :| Assuming there will be a comment / commit msg
update to answer Vladimir's question - I'm dropping the v3.