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Date: Tue, 23 Aug 2022 13:44:27 +0300 From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> To: Arınç ÜNAL <arinc.unal@...nc9.com>, Andrew Lunn <andrew@...n.ch>, Vivien Didelot <vivien.didelot@...il.com>, Florian Fainelli <f.fainelli@...il.com>, Vladimir Oltean <olteanv@...il.com>, "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>, Matthias Brugger <matthias.bgg@...il.com>, Sean Wang <sean.wang@...iatek.com>, Landen Chao <Landen.Chao@...iatek.com>, DENG Qingfang <dqfext@...il.com>, Frank Wunderlich <frank-w@...lic-files.de>, Luiz Angelo Daros de Luca <luizluca@...il.com>, Sander Vanheule <sander@...nheule.net>, René van Dorst <opensource@...rst.com>, Daniel Golle <daniel@...rotopia.org>, erkin.bozoglu@...ont.com, Sergio Paracuellos <sergio.paracuellos@...il.com> Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v4 2/6] dt-bindings: net: dsa: mediatek,mt7530: fix reset lines On 20/08/2022 11:07, Arınç ÜNAL wrote: > - Fix description of mediatek,mcm. mediatek,mcm is not used on MT7623NI. Separate commit. You are still doing here few things at a time. > - Add description for reset-gpios. > - Invalidate reset-gpios if mediatek,mcm is used. We cannot use multiple > reset lines at the same time. > - Invalidate mediatek,mcm if the compatible device is mediatek,mt7531. > There is no multi-chip module version of mediatek,mt7531. > - Require mediatek,mcm for mediatek,mt7621 as the compatible string is only > used for the multi-chip module version of MT7530. > > Signed-off-by: Arınç ÜNAL <arinc.unal@...nc9.com> > --- > .../bindings/net/dsa/mediatek,mt7530.yaml | 31 +++++++++++++++++-- > 1 file changed, 28 insertions(+), 3 deletions(-) > > diff --git a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml > index edf48e917173..4c99266ce82a 100644 > --- a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml > +++ b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml > @@ -110,11 +110,15 @@ properties: > mediatek,mcm: > type: boolean > description: > - if defined, indicates that either MT7530 is the part on multi-chip > - module belong to MT7623A has or the remotely standalone chip as the > - function MT7623N reference board provided for. > + Used for MT7621AT, MT7621DAT, MT7621ST and MT7623AI SoCs which the MT7530 > + switch is a part of the multi-chip module. > > reset-gpios: > + description: > + GPIO to reset the switch. Use this if mediatek,mcm is not used. > + This property is optional because some boards share the reset line with > + other components which makes it impossible to probe the switch if the > + reset line is used. > maxItems: 1 > > reset-names: > @@ -165,6 +169,9 @@ allOf: > required: > - mediatek,mcm > then: > + properties: > + reset-gpios: false > + > required: > - resets > - reset-names > @@ -182,6 +189,24 @@ allOf: > - core-supply > - io-supply > > + - if: > + properties: > + compatible: > + items: Again, not items. This can be just const or enum. > + - const: mediatek,mt7531 > + then: > + properties: > + mediatek,mcm: false > + > + - if: > + properties: > + compatible: > + items: Ditto. > + - const: mediatek,mt7621 > + then: > + required: > + - mediatek,mcm > + > unevaluatedProperties: false > > examples: Best regards, Krzysztof
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