Document the System Control registers regions found on all Amlogic SoC families and it's clock, power, pinctrl and phy subnodes. The regions has various independent registers tied to other hardware devices, thus the syscon compatible. Clock controllers and Pinctrl devices are not yet documented, the definition of those will be updated in a second time. Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> --- .../soc/amlogic/amlogic,meson-gx-hhi-sysctrl.yaml | 109 +++++++++++++++++++++ 1 file changed, 109 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-hhi-sysctrl.yaml b/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-hhi-sysctrl.yaml new file mode 100644 index 000000000000..672eabd90c09 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/amlogic/amlogic,meson-gx-hhi-sysctrl.yaml @@ -0,0 +1,109 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/amlogic/amlogic,meson-gx-hhi-sysctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic Meson System Control registers + +maintainers: + - Neil Armstrong <neil.armstrong@xxxxxxxxxx> + +properties: + compatible: + items: + - enum: + - amlogic,meson-gx-hhi-sysctrl + - amlogic,meson-gx-ao-sysctrl + - amlogic,meson-axg-hhi-sysctrl + - amlogic,meson-axg-ao-sysctrl + - const: simple-mfd + - const: syscon + + reg: + maxItems: 1 + + clock-controller: + type: object + + power-controller: + $ref: /schemas/power/amlogic,meson-ee-pwrc.yaml + + pinctrl: + type: object + + phy: + type: object + +allOf: + - if: + properties: + compatible: + enum: + - amlogic,meson-gx-hhi-sysctrl + - amlogic,meson-axg-hhi-sysctrl + then: + required: + - power-controller + + - if: + properties: + compatible: + enum: + - amlogic,meson-gx-ao-sysctrl + - amlogic,meson-axg-ao-sysctrl + then: + required: + - pinctrl + + - if: + properties: + compatible: + enum: + - amlogic,meson-axg-hhi-sysctrl + then: + properties: + phy: + oneOf: + - $ref: /schemas/phy/amlogic,g12a-mipi-dphy-analog.yaml + - $ref: /schemas/phy/amlogic,meson-axg-mipi-pcie-analog.yaml + +required: + - compatible + - reg + - clock-controller + +unevaluatedProperties: false + +examples: + - | + sysctrl: system-controller@0 { + compatible = "amlogic,meson-gx-hhi-sysctrl", "simple-mfd", "syscon"; + reg = <0 0x400>; + + clock-controller { }; + + power-controller { + compatible = "amlogic,meson-gxbb-pwrc"; + #power-domain-cells = <1>; + amlogic,ao-sysctrl = <&sysctrl_AO>; + + resets = <&reset_viu>, + <&reset_venc>, + <&reset_vcbus>, + <&reset_bt656>, + <&reset_dvin>, + <&reset_rdma>, + <&reset_venci>, + <&reset_vencp>, + <&reset_vdac>, + <&reset_vdi6>, + <&reset_vencl>, + <&reset_vid_lock>; + reset-names = "viu", "venc", "vcbus", "bt656", "dvin", + "rdma", "venci", "vencp", "vdac", "vdi6", + "vencl", "vid_lock"; + clocks = <&clk_vpu>, <&clk_vapb>; + clock-names = "vpu", "vapb"; + }; + }; -- 2.34.1
