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Commitfad5972

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Wolfram Sangwsakernel
Wolfram Sang
authored andcommitted
i2c: add 'single-master' property to generic bindings
It is useful to know if we are the only master on a given bus. Becausethis is a HW description of the bus, add it to the generic bindings.Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>Reviewed-by: Rob Herring <robh@kernel.org>Signed-off-by: Wolfram Sang <wsa@kernel.org>
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‎Documentation/devicetree/bindings/i2c/i2c.txt‎

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@@ -70,7 +70,12 @@ wants to support one of the below features, it should adapt these bindings.
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- multi-master
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states that there is another master active on this bus. The OS can use
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this information to adapt power management to keep the arbitration awake
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all the time, for example.
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all the time, for example. Can not be combined with 'single-master'.
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- single-master
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states that there is no other master active on this bus. The OS can use
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this information to detect a stalled bus more reliably, for example.
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Can not be combined with 'multi-master'.
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Required properties (per child device)
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