Adds documentation on how to use the sun6i_hwspinlock driver for sun6i compatible series SoCs.
Signed-off-by: Wilken Gottwalt <wilken.gottw...@posteo.net> --- Changes in v7: - changed dt documentation to the name of the compatible string Changes in v6: - fixed formating and name issues in dt documentation Changes in v5: - changed binding to earliest known supported SoC sun6i-a31 - dropped unnecessary entries Changes in v4: - changed binding to sun8i-a33-hwpinlock - added changes suggested by Maxime Ripard Changes in v3: - changed symbols from sunxi to sun8i Changes in v2: - fixed memory ranges --- .../allwinner,sun6i-a31-hwspinlock.yaml | 45 +++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml 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.gottw...@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>; + }; +... -- 2.30.2
