60 lines
1.9 KiB
Plaintext
Executable file
60 lines
1.9 KiB
Plaintext
Executable file
Generic hwlock bindings
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=======================
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Generic bindings that are common to all the hwlock platform specific driver
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implementations.
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Please also look through the individual platform specific hwlock binding
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documentations for identifying any additional properties specific to that
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platform.
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hwlock providers:
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=================
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Required properties:
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- #hwlock-cells: Specifies the number of cells needed to represent a
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specific lock.
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hwlock users:
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=============
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Consumers that require specific hwlock(s) should specify them using the
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property "hwlocks", and an optional "hwlock-names" property.
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Required properties:
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- hwlocks: List of phandle to a hwlock provider node and an
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associated hwlock args specifier as indicated by
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#hwlock-cells. The list can have just a single hwlock
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or multiple hwlocks, with each hwlock represented by
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a phandle and a corresponding args specifier.
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Optional properties:
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- hwlock-names: List of hwlock name strings defined in the same order
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as the hwlocks, with one name per hwlock. Consumers can
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use the hwlock-names to match and get a specific hwlock.
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1. Example of a node using a single specific hwlock:
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The following example has a node requesting a hwlock in the bank defined by
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the node hwlock1. hwlock1 is a hwlock provider with an argument specifier
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of length 1.
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node {
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...
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hwlocks = <&hwlock1 2>;
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...
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};
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2. Example of a node using multiple specific hwlocks:
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The following example has a node requesting two hwlocks, a hwlock within
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the hwlock device node 'hwlock1' with #hwlock-cells value of 1, and another
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hwlock within the hwlock device node 'hwlock2' with #hwlock-cells value of 2.
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node {
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...
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hwlocks = <&hwlock1 2>, <&hwlock2 0 3>;
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...
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};
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