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wilc1000: Document enable-gpios and reset-gpios properties

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Add documentation for the ENABLE and RESET GPIOs that may be needed by
wilc1000-spi.

Signed-off-by: David Mosberger-Tang <davidm@egauge.net>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211221212531.4011609-3-davidm@egauge.net
This commit is contained in:
David Mosberger-Tang 2021-12-21 21:25:34 +00:00 • committed by Kalle Valo
parent ec031ac479
commit f31ee3c0a5
1 changed files with 19 additions and 0 deletions
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19
Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml
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@ -32,6 +32,21 @@ properties:
clock-names:
const: rtc
enable-gpios:
maxItems: 1
description: Used by wilc1000-spi to determine the GPIO line
connected to the ENABLE line. If specified, reset-gpios
must be specified as well as otherwise the driver cannot
ensure the timing required between asserting ENABLE
and deasserting RESET. This should be declared as an
active-high signal.
reset-gpios:
maxItems: 1
description: Used by wilc1000-spi to determine the GPIO line
connected to the RESET line. This should be declared as an
active-low signal.
required:
- compatible
- interrupts
@ -40,6 +55,8 @@ additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
@ -51,6 +68,8 @@ examples:
interrupts = <27 0>;
clocks = <&pck1>;
clock-names = "rtc";
enable-gpios = <&pioA 5 GPIO_ACTIVE_HIGH>;
reset-gpios = <&pioA 6 GPIO_ACTIVE_LOW>;
};
};