From f565c54e96b6383c9ed666766a1e88225338c29b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
Date: Thu, 25 Aug 2022 11:22:58 +0300
Subject: [PATCH] dt-bindings: net: dsa: mediatek,mt7530: fix reset lines
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- 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@arinc9.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
.../bindings/net/dsa/mediatek,mt7530.yaml | 24 +++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
index 35a3039825bde..16ddda314b5c2 100644
--- a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
@@ -111,6 +111,11 @@ properties:
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 +170,9 @@ allOf:
required:
- mediatek,mcm
then:
+ properties:
+ reset-gpios: false
+
required:
- resets
- reset-names
@@ -181,6 +189,22 @@ allOf:
- core-supply
- io-supply
+ - if:
+ properties:
+ compatible:
+ const: mediatek,mt7531
+ then:
+ properties:
+ mediatek,mcm: false
+
+ - if:
+ properties:
+ compatible:
+ const: mediatek,mt7621
+ then:
+ required:
+ - mediatek,mcm
+
unevaluatedProperties: false
examples: