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dt-bindings: pinctrl: mcp23s08: add documentation for reset-gpios

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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@gmail.com>
Signed-off-by: Darian Biastoch <d.biastoch@gmail.com>
Link: https://lore.kernel.org/r/20210610132438.3085841-2-akaessens@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andreas Kaessens 2021-06-10 15:24:38 +02:00 committed by Linus Walleij
parent 4e73bfa3ee
commit ee9889dfa9
1 changed files with 2 additions and 0 deletions
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2
Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt
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@ -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",