Re: [PATCH 6/7] misc: eeprom: 93xx46: Add DT binding for a GPIO 'select' line.
From: Rob Herring
Date: Tue Nov 17 2015 - 15:59:14 EST
On Mon, Nov 16, 2015 at 11:16:35PM -0500, Cory Tusar wrote:
> This commit documents an additional devicetree binding in the
> eeprom_93x46 driver allowing a GPIO line to function as a 'select'
> or 'enable' signal prior to accessing the EEPROM.
You can just fold all the DT binding patches into 1. They don't have to
match up to driver changes.
> Signed-off-by: Cory Tusar <cory.tusar@xxxxxxxxxxxxxxxxx>
> Documentation/devicetree/bindings/misc/eeprom-93xx46.txt | 3 +++
> 1 file changed, 3 insertions(+)
> diff --git a/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
> index 34a0cc2..75b16f4 100644
> --- a/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
> +++ b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
> @@ -6,6 +6,8 @@ Required properties:
> Optional properties:
> - read-only : parameter-less property which disables writes to the EEPROM
> +- select-gpio : if present, specifies the GPIO that will be asserted prior to
> + each access to the EEPROM (e.g. for SPI bus multiplexing)
This should be "select-gpios".
> Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
> apply. In particular, "reg" and "spi-max-frequency" properties must be given.
> @@ -17,4 +19,5 @@ Example:
> spi-max-frequency = <1000000>;
> data-size = <8>;
> + select-gpio = <&gpio4 4 GPIO_ACTIVE_HIGH>;
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