linux-kernel - [PATCH 2/2] dt-bindings: pinctrl: mcp23s08: add documentation for reset-gpios

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Date:   Thu, 10 Jun 2021 15:24:38 +0200
From:   Andreas Kaessens <akaessens@...il.com>
To:     linus.walleij@...aro.org, robh+dt@...nel.org,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     linux-kernel@...cs.fau.de, Andreas Kaessens <akaessens@...il.com>,
        Darian Biastoch <d.biastoch@...il.com>
Subject: [PATCH 2/2] dt-bindings: pinctrl: mcp23s08: add documentation for reset-gpios

The reset-gpios property is added to the optional dt-bindings and
also an example for it's usage.

Signed-off-by: Andreas Kaessens <akaessens@...il.com>
Signed-off-by: Darian Biastoch <d.biastoch@...il.com>
---
 Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt
index 6ec3c8d79f49..2fa5edac7a35 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt
@@ -49,6 +49,7 @@ Optional properties:
 - interrupt-controller: Marks the device node as a interrupt controller.
 - drive-open-drain: Sets the ODR flag in the IOCON register. This configures
         the IRQ output as open drain active low.
+- reset-gpios: Corresponds to the active-low RESET# pin for the chip
 
 Optional device specific properties:
 - microchip,irq-mirror: Sets the mirror flag in the IOCON register. Devices
@@ -135,6 +136,7 @@ gpio21: gpio@21 {
 	microchip,irq-mirror;
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2cgpio0irq>, <&gpio21pullups>;
+	reset-gpios = <&gpio6 15 GPIO_ACTIVE_LOW>;
 
 	gpio21pullups: pinmux {
 		pins =	"gpio0", "gpio1", "gpio2", "gpio3",
-- 
2.25.1