Messages in this thread Patch in this message | | | From | Cory Tusar <> | Subject | [PATCH 6/7] misc: eeprom: 93xx46: Add DT binding for a GPIO 'select' line. | Date | Mon, 16 Nov 2015 23:16:35 -0500 |
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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@pid1solutions.com> --- 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
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