linux/linux-5.4.31/Documentation/devicetree/bindings/hwlock/st,stm32-hwspinlock.txt

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2024-01-30 10:43:28 +00:00
STM32 Hardware Spinlock Device Binding
-------------------------------------
Required properties :
- compatible : should be "st,stm32-hwspinlock".
- reg : the register address of hwspinlock.
- #hwlock-cells : should be <2> so the hwlock users use the hwlock id to
represent a specific hwlock and define its shared / exclusive attribute.
- clock-names : Must contain "hsem".
- clocks : Must contain a phandle entry for the clock in clock-names, see the
common clock bindings.
Please look at the generic hwlock binding for usage information for consumers,
"Documentation/devicetree/bindings/hwlock/hwlock.txt"
Example of hwlock provider:
hwspinlock@4c000000 {
compatible = "st,stm32-hwspinlock";
#hwlock-cells = <2>;
reg = <0x4c000000 0x400>;
clocks = <&rcc HSEM>;
clock-names = "hsem";
};