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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-06 11:37:44 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-06 11:37:44 -0800 |
commit | 66e012f6188fb37b18c774277f34fb52278059c3 (patch) | |
tree | 40a39bb43e830a177eaf32440f2568212d57eb64 /Documentation/devicetree/bindings | |
parent | b5aef86e089a2d85a6d627372287785d08938cbe (diff) | |
parent | 4d5a91fd1f42a821d14b92b082b8e71be9911ba5 (diff) | |
download | linux-stable-66e012f6188fb37b18c774277f34fb52278059c3.tar.gz linux-stable-66e012f6188fb37b18c774277f34fb52278059c3.tar.bz2 linux-stable-66e012f6188fb37b18c774277f34fb52278059c3.zip |
Merge tag 'hwlock-v4.21' of git://github.com/andersson/remoteproc
Pull hwspinlock updates from Bjorn Andersson:
"This adds support for the hardware semaphores found in STM32MP1"
* tag 'hwlock-v4.21' of git://github.com/andersson/remoteproc:
hwspinlock: fix return value check in stm32_hwspinlock_probe()
hwspinlock: add STM32 hwspinlock device
dt-bindings: hwlock: Document STM32 hwspinlock bindings
Diffstat (limited to 'Documentation/devicetree/bindings')
-rw-r--r-- | Documentation/devicetree/bindings/hwlock/st,stm32-hwspinlock.txt | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/hwlock/st,stm32-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/st,stm32-hwspinlock.txt new file mode 100644 index 000000000000..adf4f000ea3d --- /dev/null +++ b/Documentation/devicetree/bindings/hwlock/st,stm32-hwspinlock.txt @@ -0,0 +1,23 @@ +STM32 Hardware Spinlock Device Binding +------------------------------------- + +Required properties : +- compatible : should be "st,stm32-hwspinlock". +- reg : the register address of hwspinlock. +- #hwlock-cells : hwlock users only use the hwlock id to represent a specific + hwlock, so the number of cells should be <1> here. +- 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 = <1>; + reg = <0x4c000000 0x400>; + clocks = <&rcc HSEM>; + clock-names = "hsem"; + }; |