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author | Wilken Gottwalt <wilken.gottwalt@posteo.net> | 2021-03-14 10:30:49 +0100 |
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committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2021-05-27 22:19:37 -0500 |
commit | f9e784dcb63f56157f7d12abdab584cc393515b1 (patch) | |
tree | 0372bd59049e392f15f471bf7743e12af7d06c3d /Documentation/devicetree/bindings/hwlock | |
parent | 6efb943b8616ec53a5e444193dccf1af9ad627b5 (diff) | |
download | lwn-f9e784dcb63f56157f7d12abdab584cc393515b1.tar.gz lwn-f9e784dcb63f56157f7d12abdab584cc393515b1.zip |
dt-bindings: hwlock: add sun6i_hwspinlock
Adds documentation on how to use the sun6i_hwspinlock driver for sun6i
compatible series SoCs.
Reviewed-by: Samuel Holland <samuel@sholland.org>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/b7a1f5532e0ae474473858055fd9bbabff9e1449.1615713499.git.wilken.gottwalt@posteo.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/hwlock')
-rw-r--r-- | Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml | 45 |
1 files changed, 45 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..733c3d01e56c --- /dev/null +++ b/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwlock/allwinner,sun6i-hwspinlock.yaml# +$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: + - | + hwlock@1c18000 { + compatible = "allwinner,sun6i-a31-hwspinlock"; + reg = <0x01c18000 0x1000>; + clocks = <&ccu CLK_BUS_SPINLOCK>; + resets = <&ccu RST_BUS_SPINLOCK>; + }; +... |