Boards using the AT24 EEPROMs might have a GPIO that must be set to enable the chip (e.g. pin that controls the power supply). Add a new optional property to the device tree binding document, which allows to specify the GPIO line to which the enable pin is connected. On Linux this means that we need to hog the line at the beginning of probe function. Signed-off-by: Eliav Farber <farbere@xxxxxxxxxx> --- Documentation/devicetree/bindings/eeprom/at24.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt index f9a7c984274c..553b53ed3e4c 100644 --- a/Documentation/devicetree/bindings/eeprom/at24.txt +++ b/Documentation/devicetree/bindings/eeprom/at24.txt @@ -73,6 +73,9 @@ Optional properties: - wp-gpios: GPIO to which the write-protect pin of the chip is connected. + - enable-gpios: GPIO to enables the chip (e.g. pin that controls the eeprom + power supply). + - address-width: number of address bits (one of 8, 16). Example: -- 2.37.1
