dt-bindings: i2c-mpc: Document interrupt property as required
All of the in-tree device-trees that use the one of the compatible strings from i2c-mpc.c supply an interrupts property. Make this property mandatory to aid refactoring the driver. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@kernel.org>
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@ -7,14 +7,14 @@ Required properties :
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compatible processor, e.g. mpc8313, mpc8543, mpc8544, mpc5121,
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compatible processor, e.g. mpc8313, mpc8543, mpc8544, mpc5121,
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mpc5200 or mpc5200b. For the mpc5121, an additional node
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mpc5200 or mpc5200b. For the mpc5121, an additional node
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"fsl,mpc5121-i2c-ctrl" is required as shown in the example below.
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"fsl,mpc5121-i2c-ctrl" is required as shown in the example below.
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Recommended properties :
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- interrupts : <a b> where a is the interrupt number and b is a
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- interrupts : <a b> where a is the interrupt number and b is a
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field that represents an encoding of the sense and level
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field that represents an encoding of the sense and level
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information for the interrupt. This should be encoded based on
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information for the interrupt. This should be encoded based on
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the information in section 2) depending on the type of interrupt
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the information in section 2) depending on the type of interrupt
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controller you have.
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controller you have.
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Recommended properties :
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- fsl,preserve-clocking : boolean; if defined, the clock settings
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- fsl,preserve-clocking : boolean; if defined, the clock settings
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from the bootloader are preserved (not touched).
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from the bootloader are preserved (not touched).
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- clock-frequency : desired I2C bus clock frequency in Hz.
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- clock-frequency : desired I2C bus clock frequency in Hz.
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