From: Conor Dooley <conor@kernel.org>
To: linux-gpio@vger.kernel.org
Cc: conor@kernel.org, Conor Dooley <conor.dooley@microchip.com>,
Daire McNamara <daire.mcnamara@microchip.com>,
Linus Walleij <linusw@kernel.org>,
Bartosz Golaszewski <brgl@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v1] dt-bindings: gpio: mpfs-gpio: permit resets
Date: Tue, 3 Mar 2026 16:33:12 +0000 [thread overview]
Message-ID: <20260303-irate-hungry-b54cda817e42@spud> (raw)
From: Conor Dooley <conor.dooley@microchip.com>
Both CoreGPIO and the hardened versions of it on mpfs and pic64gx have a
reset pin. For the former, usually this is wired to a common fabric
reset not managed by software and for the latter two the platform
firmware takes them out of reset on first-party boards (or those using
modified versions of the vendor firmware), but not all boards may take
this approach. Permit providing a reset in devicetree for Linux, or
other devicetree-consuming software, to use.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
CC: Conor Dooley <conor.dooley@microchip.com>
CC: Daire McNamara <daire.mcnamara@microchip.com>
CC: Linus Walleij <linusw@kernel.org>
CC: Bartosz Golaszewski <brgl@kernel.org>
CC: Rob Herring <robh@kernel.org>
CC: Krzysztof Kozlowski <krzk+dt@kernel.org>
CC: linux-riscv@lists.infradead.org
CC: linux-gpio@vger.kernel.org
CC: devicetree@vger.kernel.org
CC: linux-kernel@vger.kernel.org
---
.../devicetree/bindings/gpio/microchip,mpfs-gpio.yaml | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
index 184432d24ea18..eaa254a468063 100644
--- a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
@@ -33,6 +33,9 @@ properties:
clocks:
maxItems: 1
+ resets:
+ maxItems: 1
+
"#gpio-cells":
const: 2
--
2.51.0
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next reply other threads:[~2026-03-03 16:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-03 16:33 Conor Dooley [this message]
2026-03-04 8:18 ` [PATCH v1] dt-bindings: gpio: mpfs-gpio: permit resets Bartosz Golaszewski
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