Messages in this thread Patch in this message | | | From | Sai Krishna Potthuri <> | Subject | [PATCH v3 1/2] dt-bindings: mtd: spi-nor: Add reset-gpios property | Date | Thu, 8 Sep 2022 12:14:27 +0530 |
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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: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com> --- Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml index 7149784a36ac..8a843b9b8673 100644 --- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml +++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml @@ -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>; }; }; ... -- 2.17.1
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