[PATCH v2 2/7] dt-bindings: net: dsa: mediatek,mt7530: fix reset lines

From: "Arınç ÜNAL" <arinc.unal@arinc9.com>
To: "Andrew Lunn" <andrew@lunn.ch>,
	"Vivien Didelot" <vivien.didelot@gmail.com>,
	"Florian Fainelli" <f.fainelli@gmail.com>,
	"Vladimir Oltean" <olteanv@gmail.com>,
	"David S . Miller" <davem@davemloft.net>,
	"Eric Dumazet" <edumazet@google.com>,
	"Jakub Kicinski" <kuba@kernel.org>,
	"Paolo Abeni" <pabeni@redhat.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Matthias Brugger" <matthias.bgg@gmail.com>,
	"Sean Wang" <sean.wang@mediatek.com>,
	"Landen Chao" <Landen.Chao@mediatek.com>,
	"DENG Qingfang" <dqfext@gmail.com>,
	"Frank Wunderlich" <frank-w@public-files.de>,
	"Luiz Angelo Daros de Luca" <luizluca@gmail.com>,
	"Sander Vanheule" <sander@svanheule.net>,
	"René van Dorst" <opensource@vdorst.com>,
	"Daniel Golle" <daniel@makrotopia.org>,
	erkin.bozoglu@xeront.com,
	"Sergio Paracuellos" <sergio.paracuellos@gmail.com>
Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
	"Arınç ÜNAL" <arinc.unal@arinc9.com>
Subject: [PATCH v2 2/7] dt-bindings: net: dsa: mediatek,mt7530: fix reset lines
Date: Sat, 13 Aug 2022 18:44:10 +0300	[thread overview]
Message-ID: <20220813154415.349091-3-arinc.unal@arinc9.com> (raw)
In-Reply-To: <20220813154415.349091-1-arinc.unal@arinc9.com>

- Fix description of mediatek,mcm. mediatek,mcm is not used on MT7623NI.
- Add description for reset-gpios.
- Invalidate reset-gpios if mediatek,mcm is used.
- Invalidate mediatek,mcm if the compatible device is mediatek,mt7531.
- Require mediatek,mcm for the described MT7621 SoCs as the compatible
string is only used for MT7530 which is a part of the multi-chip module.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.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:
+            - const: mediatek,mt7531
+    then:
+      properties:
+        mediatek,mcm: false
+
+  - if:
+      properties:
+        compatible:
+          items:
+            - const: mediatek,mt7621
+    then:
+      required:
+        - mediatek,mcm
+
 unevaluatedProperties: false
 
 examples:
-- 
2.34.1

