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author | Cristian Ciocaltea <cristian.ciocaltea@gmail.com> | 2020-11-20 02:56:04 +0300 |
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committer | Wolfram Sang <wsa@kernel.org> | 2020-12-09 23:22:08 +0300 |
commit | 730f205190a15439c8896f420cde6bbe50c454c2 (patch) | |
tree | 2eff0d74fd0fb6b98ac6707db61492d8c6d32db5 /Documentation/devicetree/bindings/i2c/i2c-owl.yaml | |
parent | f7414cd6923fd7f78e57086fc964ba2dc25db5c1 (diff) | |
download | linux-730f205190a15439c8896f420cde6bbe50c454c2.tar.xz |
dt-bindings: i2c: owl: Convert Actions Semi Owl binding to a schema
Convert the Actions Semi Owl I2C DT binding to a YAML schema for
enabling DT validation.
Additionally, add a new compatible string corresponding to the I2C
controller found in the S500 variant of the Actions Semi Owl SoCs
family.
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-owl.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-owl.yaml | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-owl.yaml b/Documentation/devicetree/bindings/i2c/i2c-owl.yaml new file mode 100644 index 000000000000..d96908badf81 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-owl.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/i2c-owl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Actions Semi Owl I2C Controller + +maintainers: + - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> + +description: | + This I2C controller is found in the Actions Semi Owl SoCs: + S500, S700 and S900. + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + enum: + - actions,s500-i2c # Actions Semi S500 compatible SoCs + - actions,s700-i2c # Actions Semi S700 compatible SoCs + - actions,s900-i2c # Actions Semi S900 compatible SoCs + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + description: Phandle of the clock feeding the I2C controller. + minItems: 1 + + clock-frequency: + description: | + Desired I2C bus clock frequency in Hz. As only Standard and Fast + modes are supported, possible values are 100000 and 400000. + enum: [100000, 400000] + +required: + - compatible + - reg + - interrupts + - clocks + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/actions,s900-cmu.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + i2c@e0170000 { + compatible = "actions,s900-i2c"; + reg = <0xe0170000 0x1000>; + interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cmu CLK_I2C0>; + clock-frequency = <100000>; + }; + +... |