From 821e2c705fb9d4b7f54fd17e7a13614ee515a181 Mon Sep 17 00:00:00 2001 From: Khouloud Touil Date: Tue, 7 Jan 2020 10:29:21 +0100 Subject: [PATCH] dt-bindings: at25: add reference for the wp-gpios property As the at25 uses the NVMEM subsystem, and the property is now being handled, adding reference for it in the device tree binding document, which allows to specify the GPIO line to which the write-protect pin is connected. Signed-off-by: Khouloud Touil Reviewed-by: Rob Herring Acked-by: Greg Kroah-Hartman Signed-off-by: Bartosz Golaszewski --- Documentation/devicetree/bindings/eeprom/at25.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/eeprom/at25.txt b/Documentation/devicetree/bindings/eeprom/at25.txt index 42577dd113ddf..fcacd97abd0ae 100644 --- a/Documentation/devicetree/bindings/eeprom/at25.txt +++ b/Documentation/devicetree/bindings/eeprom/at25.txt @@ -20,6 +20,7 @@ Optional properties: - spi-cpha : SPI shifted clock phase, as per spi-bus bindings. - spi-cpol : SPI inverse clock polarity, as per spi-bus bindings. - read-only : this parameter-less property disables writes to the eeprom +- wp-gpios : GPIO to which the write-protect pin of the chip is connected Obsolete legacy properties can be used in place of "size", "pagesize", "address-width", and "read-only": @@ -36,6 +37,7 @@ Example: spi-max-frequency = <5000000>; spi-cpha; spi-cpol; + wp-gpios = <&gpio1 3 0>; pagesize = <64>; size = <32768>; -- 2.30.2