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. 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) 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>; spi-cs-high; data-size = <8>; + select-gpio = <&gpio4 4 GPIO_ACTIVE_HIGH>; }; -- 2.4.10 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
