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20a72af11f
SPI and I2C bus node names are expected to be "spi" or "i2c",
respectively, with nothing else, a unit-address, or a '-N' index. A
pattern of 'spi0' or 'i2c0' or similar has crept in. Fix all these
cases. Mostly scripted with the following commands:
git grep -l '\si2c[0-9] {' Documentation/devicetree/ | xargs sed -i -e 's/i2c[0-9] {/i2c {/'
git grep -l '\sspi[0-9] {' Documentation/devicetree/ | xargs sed -i -e 's/spi[0-9] {/spi {/'
With this, a few errors in examples were exposed and fixed.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for the microchip,mcp251xfd.yaml
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for power-supply
Acked-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230228215433.3944508-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
148 lines
3.7 KiB
YAML
148 lines
3.7 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/eeprom/at25.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: SPI EEPROMs or FRAMs compatible with Atmel's AT25
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maintainers:
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- Christian Eggers <ceggers@arri.de>
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properties:
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$nodename:
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anyOf:
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- pattern: "^eeprom@[0-9a-f]{1,2}$"
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- pattern: "^fram@[0-9a-f]{1,2}$"
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# There are multiple known vendors who manufacture EEPROM chips compatible
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# with Atmel's AT25. The compatible string requires two items where the
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# 'vendor' and 'model' parts of the first are the actual chip and the second
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# item is fixed to "atmel,at25". Some existing bindings only have the
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# "atmel,at25" part and should be fixed by somebody who knows vendor and
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# product.
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compatible:
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oneOf:
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- items:
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- enum:
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- anvo,anv32e61w
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- atmel,at25256B
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- fujitsu,mb85rs1mt
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- fujitsu,mb85rs64
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- microchip,at25160bn
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- microchip,25lc040
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- st,m95m02
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- st,m95256
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- cypress,fm25
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- const: atmel,at25
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# Please don't use this alternative for new bindings.
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- items:
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- const: atmel,at25
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reg:
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maxItems: 1
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pagesize:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [1, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072]
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description:
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Size of the eeprom page. FRAMs don't have pages.
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size:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Total eeprom size in bytes.
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address-width:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [ 8, 9, 16, 24 ]
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description:
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Number of address bits.
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For 9 bits, the MSB of the address is sent as bit 3 of the instruction
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byte, before the address byte.
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spi-cpha: true
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spi-cpol: true
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read-only:
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description:
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Disable writes to the eeprom.
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type: boolean
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wp-gpios:
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maxItems: 1
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description:
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GPIO to which the write-protect pin of the chip is connected.
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# Deprecated: at25,byte-len, at25,addr-mode, at25,page-size
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at25,byte-len:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Total eeprom size in bytes. Deprecated, use "size" property instead.
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deprecated: true
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at25,addr-mode:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Addr-mode flags, as defined in include/linux/spi/eeprom.h.
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Deprecated, use "address-width" property instead.
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deprecated: true
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at25,page-size:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Size of the eeprom page. Deprecated, use "pagesize" property instead.
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deprecated: true
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required:
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- compatible
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- reg
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- spi-max-frequency
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allOf:
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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- $ref: /schemas/nvmem/nvmem.yaml
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- if:
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properties:
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compatible:
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not:
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contains:
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const: cypress,fm25
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then:
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required:
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- pagesize
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- size
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- address-width
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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eeprom@0 {
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compatible = "st,m95256", "atmel,at25";
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reg = <0>;
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spi-max-frequency = <5000000>;
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spi-cpha;
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spi-cpol;
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wp-gpios = <&gpio1 3 0>;
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pagesize = <64>;
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size = <32768>;
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address-width = <16>;
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};
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fram@1 {
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compatible = "cypress,fm25", "atmel,at25";
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reg = <1>;
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spi-max-frequency = <40000000>;
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};
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};
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