On Wed, Apr 26, 2023 at 04:13:12PM +0530, Harini Katakam wrote: > From: Harini Katakam <harini.katakam@xxxxxxxxxx> > > Add optional properties to tune RGMII RX and TX delay. The current > default value in the Linux driver, when the phy-mode is rgmii-id, > is 2ns for both. These properties take priority if specified. > > Signed-off-by: Harini Katakam <harini.katakam@xxxxxxx> > Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxxxxx> > Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx> > --- > v2: > - Updated DT binding description and commit for optional delay tuning > to be clearer on the precedence > - Updated dt property name to include vendor instead of phy device name > > Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt > index 0a3647fe331b..2b779bc3096b 100644 > --- a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt > +++ b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt > @@ -33,6 +33,8 @@ Optional properties: > VSC8531_DUPLEX_COLLISION (8). > - load-save-gpios : GPIO used for the load/save operation of the PTP > hardware clock (PHC). > +- mscc,rx-delay : RGMII RX delay. Allowed values are 0.2 - 3.4 ns. > +- mscc,tx-delay : RGMII TX delay. Allowed values are 0.2 - 3.4 ns. We have rx-internal-delay-ps and tx-internal-delay-ps in the common ethernet-phy.yaml, there is no need for a custom property.
