1 Amlogic Meson Power Controller
2 ==============================
4 The Amlogic Meson SoCs embeds an internal Power domain controller.
9 The Video Processing Unit power domain is controlled by this power controller,
10 but the domain requires some external resources to meet the correct power
12 The bindings must respect the power domain bindings as described in the file
19 - compatible: should be one of the following :
20 - "amlogic,meson-gx-pwrc-vpu" for the Meson GX SoCs
21 - "amlogic,meson-g12a-pwrc-vpu" for the Meson G12A SoCs
22 - #power-domain-cells: should be 0
23 - amlogic,hhi-sysctrl: phandle to the HHI sysctrl node
24 - resets: phandles to the reset lines needed for this power demain sequence
25 as described in ../reset/reset.txt
26 - clocks: from common clock binding: handle to VPU and VAPB clocks
27 - clock-names: from common clock binding: must contain "vpu", "vapb"
28 corresponding to entry in the clocks property.
30 Parent node should have the following properties :
31 - compatible: "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd"
32 - reg: base address and size of the AO system control register space.
37 ao_sysctrl: sys-ctrl@0 {
38 compatible = "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd";
39 reg = <0x0 0x0 0x0 0x100>;
41 pwrc_vpu: power-controller-vpu {
42 compatible = "amlogic,meson-gx-pwrc-vpu";
43 #power-domain-cells = <0>;
44 amlogic,hhi-sysctrl = <&sysctrl>;
45 resets = <&reset RESET_VIU>,
49 <&reset RESET_DVIN_RESET>,
56 <&reset RESET_VID_LOCK>;
57 clocks = <&clkc CLKID_VPU>,
59 clock-names = "vpu", "vapb";