[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20230928-ruse-parsnip-ce691bd4d0c9@spud>
Date: Thu, 28 Sep 2023 18:17:23 +0100
From: Conor Dooley <conor@...nel.org>
To: Christophe Roullier <christophe.roullier@...s.st.com>
Cc: "David S . Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Richard Cochran <richardcochran@...il.com>,
Jose Abreu <joabreu@...opsys.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, netdev@...r.kernel.org,
devicetree@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 02/12] dt-bindings: net: add new property
st,ext-phyclk in documentation for stm32
On Thu, Sep 28, 2023 at 05:15:02PM +0200, Christophe Roullier wrote:
> Add property st,ext-phyclk to manage cases when PHY have no cristal/quartz
> This property can be used with RMII phy without cristal 50Mhz and when we
> want to select RCC clock instead of ETH_REF_CLK
> Can be used also with RGMII phy with no cristal and we select RCC clock
> instead of ETH_CLK125
> This new property replace st,eth-clk-sel and st,eth-ref-clk-sel
I don't really see a response to Rob's comment on v2, either here or in
a reply to his email on v2:
| Certainly 1 property is better than 2 for me, but carrying 3 is not
| great. I don't understand why the we need a new property. What can't be
| supported with the existing properties?
A sentence saying explaining exactly what the old properties do not
support that this one does, would be very helpful.
Thanks,
Conor.
>
> Signed-off-by: Christophe Roullier <christophe.roullier@...s.st.com>
> ---
> Documentation/devicetree/bindings/net/stm32-dwmac.yaml | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/net/stm32-dwmac.yaml b/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
> index ca976281bfc22..67840cab02d2d 100644
> --- a/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/stm32-dwmac.yaml
> @@ -78,12 +78,21 @@ properties:
> encompases the glue register, the offset of the control register and
> the mask to set bitfield in control register
>
> + st,ext-phyclk:
> + description:
> + set this property in RMII mode when you have PHY without crystal 50MHz and want to
> + select RCC clock instead of ETH_REF_CLK. or in RGMII mode when you want to select
> + RCC clock instead of ETH_CLK125.
> + type: boolean
> +
> st,eth-clk-sel:
> + deprecated: true
> description:
> set this property in RGMII PHY when you want to select RCC clock instead of ETH_CLK125.
> type: boolean
>
> st,eth-ref-clk-sel:
> + deprecated: true
> description:
> set this property in RMII mode when you have PHY without crystal 50MHz and want to
> select RCC clock instead of ETH_REF_CLK.
> --
> 2.25.1
>
Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)
Powered by blists - more mailing lists