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| author | Sai Krishna Potthuri <sai.krishna.potthuri@amd.com> | 2022-09-08 12:14:27 +0530 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2022-10-25 05:11:34 +0300 |
| commit | 7f2937efe18630832c8eae7a74e8c19fc1e7936e (patch) | |
| tree | 0bbda564c49645e82065223a2da17a035c70d038 | |
| parent | 247f34f7b80357943234f93f247a1ae6b6c3a740 (diff) | |
| download | linux-7f2937efe18630832c8eae7a74e8c19fc1e7936e.tar.bz2 | |
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: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220908064428.2962-2-sai.krishna.potthuri@amd.com
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml | 8 |
1 files changed, 8 insertions, 0 deletions
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>; }; }; ... |