Commit 7f2937ef authored by Sai Krishna Potthuri's avatar Sai Krishna Potthuri Committed by Tudor Ambarus
Browse files

dt-bindings: mtd: spi-nor: Add reset-gpios property 



SPI-NOR flashes have RESET pin which can be toggled using GPIO
controller, for those platforms reset-gpios property can be used to
reset the flash device.

Signed-off-by: default avatarSai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Signed-off-by: default avatarTudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220908064428.2962-2-sai.krishna.potthuri@amd.com
parent 247f34f7

Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml

+8 −0
Original line number Diff line number Diff line
@@ -70,6 +70,12 @@ properties: 
      be used on such systems, to denote the absence of a reliable reset

      mechanism.



  reset-gpios:

    description:

      A GPIO line connected to the RESET (active low) signal of the device.

      If "broken-flash-reset" is present then having this property does not

      make any difference.



  partitions:

    type: object
@@ -88,6 +94,7 @@ unevaluatedProperties: false 


examples:

  - |

    #include <dt-bindings/gpio/gpio.h>

    spi {

        #address-cells = <1>;

        #size-cells = <0>;
@@ -97,6 +104,7 @@ examples: 
            reg = <0>;

            spi-max-frequency = <40000000>;

            m25p,fast-read;

            reset-gpios = <&gpio 12 GPIO_ACTIVE_LOW>;

        };

    };

...