On Tue, Aug 16, 2022 at 01:00:01PM +0000, Eliav Farber wrote: > 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). > If this is a power supply control, use a gpio regulator. > 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 >
