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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-07 10:57:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-07 10:57:51 -0700 |
| commit | b5e6d1261e2090df1325e762669c8eab6d4fb2fb (patch) | |
| tree | 4d3469b168ca902c146d3de07514b3b7e2b7a0d1 /Documentation | |
| parent | d0fe3f47ef09bf5a74f7d20e129b2d15b4a824d0 (diff) | |
| parent | 234462bc7f2303afce4b61125d2107ecd7611bff (diff) | |
Merge tag 'hwlock-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull hwspinlock updates from Bjorn Andersson:
"This adds a driver for the hardware spinlock in Allwinner sun6i"
* tag 'hwlock-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
dt-bindings: hwlock: sun6i: Fix various warnings in binding
hwspinlock: add sun6i hardware spinlock support
dt-bindings: hwlock: add sun6i_hwspinlock
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml new file mode 100644 index 000000000000..10e5a53e447b --- /dev/null +++ b/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwlock/allwinner,sun6i-a31-hwspinlock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SUN6I hardware spinlock driver for Allwinner sun6i compatible SoCs + +maintainers: + - Wilken Gottwalt <wilken.gottwalt@posteo.net> + +description: + The hardware unit provides semaphores between the ARM cores and the embedded + companion core on the SoC. + +properties: + compatible: + const: allwinner,sun6i-a31-hwspinlock + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/sun8i-a23-a33-ccu.h> + #include <dt-bindings/reset/sun8i-a23-a33-ccu.h> + + hwlock@1c18000 { + compatible = "allwinner,sun6i-a31-hwspinlock"; + reg = <0x01c18000 0x1000>; + clocks = <&ccu CLK_BUS_SPINLOCK>; + resets = <&ccu RST_BUS_SPINLOCK>; + }; +... |