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From: Conor Dooley <conor@kernel.org>
To: Linus Walleij <linusw@kernel.org>
Cc: conor@kernel.org, Conor Dooley <conor.dooley@microchip.com>,
	"Rob Herring (Arm)" <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] dt-bindings: pinctrl: pincfg-node: permit bias-high-impedance with other bias properties
Date: Tue, 10 Mar 2026 17:58:27 +0000	[thread overview]
Message-ID: <20260310-ascertain-overblown-955becc1d8a3@spud> (raw)

From: Conor Dooley <conor.dooley@microchip.com>

It is possible that devices tristate buffers may set the buffer to
the high-Z state in addition to setting pull-up or pull-down on a pin.
Remove this particular restriction to prevent warning on zynqmp systems
where this configuration seems to be valid.

Reported-by: Rob Herring (Arm) <robh@kernel.org>
Fixes: a901e8705f89f ("dt-bindings: pinctrl: pincfg-node: add restrictions on conflicting properties")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
CC: Linus Walleij <linusw@kernel.org>
CC: Rob Herring <robh@kernel.org>
CC: Krzysztof Kozlowski <krzk+dt@kernel.org>
CC: Conor Dooley <conor+dt@kernel.org>
CC: linux-gpio@vger.kernel.org
CC: devicetree@vger.kernel.org
CC: linux-kernel@vger.kernel.org
---
 Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml b/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml
index fe936ab091040..981f45c2f56b0 100644
--- a/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pincfg-node.yaml
@@ -236,8 +236,6 @@ allOf:
       anyOf:
         - required:
             - bias-disable
-        - required:
-            - bias-high-impedance
         - required:
             - bias-bus-hold
         - required:
@@ -250,8 +248,6 @@ allOf:
       oneOf:
         - required:
             - bias-disable
-        - required:
-            - bias-high-impedance
         - required:
             - bias-bus-hold
         - required:
-- 
2.51.0


             reply	other threads:[~2026-03-10 17:58 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-10 17:58 Conor Dooley [this message]
2026-03-11 12:55 ` [PATCH] dt-bindings: pinctrl: pincfg-node: permit bias-high-impedance with other bias properties Linus Walleij

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