| Message ID | 1508225882-8795-3-git-send-email-narmstrong@baylibre.com |
|---|---|
| State | Rejected, archived |
| Headers | show |
| Series | None | expand |
On 17/10/2017 09:38, Neil Armstrong wrote: > Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> > --- > .../bindings/power/amlogic,meson-gx-pwrc.txt | 65 ++++++++++++++++++++++ > 1 file changed, 65 insertions(+) > create mode 100644 Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt > > diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt b/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt > new file mode 100644 > index 0000000..94c2474 > --- /dev/null > +++ b/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt > @@ -0,0 +1,65 @@ > +Amlogic Meson Power Controller > +============================== > + > +The Amlogic Meson SoCs embeds an internal Power domain controller. > + > +VPU Power Domain > +---------------- > + > +The Video Processing Unit power domain is controlled by this power controller, > +but the domain requires some external resources to meet the correct power > +sequences. > +The bindings must respect the power domain bindings as described in the file > +power_domain.txt > + > +Device Tree Bindings: > +--------------------- > + > +Required properties: > +- compatible: value should be different for each SoC family as : > + - GXBB (S905) : "amlogic,meson-gxbb-vpu" > + - GXL (S905X, S905D) : "amlogic,meson-gxl-vpu" > + - GXM (S912) : "amlogic,meson-gxm-vpu" > + followed by the common "amlogic,meson-gx-vpu" Oops, wrong compatibles, please ignore this patch, I'll repost it. > +- #power-domain-cells: should be 0 > +- amlogic,hhi-sysctrl: phandle to the HHI sysctrl node > +- resets: phandles to the reset lines needed for this power demain sequence > + as described in ../reset/reset.txt > +- clocks: from common clock binding: handle to VPU and VAPB clocks > +- clock-names: from common clock binding: must contain "vpu", "vapb" > + corresponding to entry in the clocks property. > + > +Parent node should have the following properties : > +- compatible: "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd" > +- reg: base address and size of the AO system control register space. > + > +Example: > +------- > + > +ao_sysctrl: sys-ctrl@0 { > + compatible = "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd"; > + reg = <0x0 0x0 0x0 0x100>; > + > + pwrc_vpu: power-controller-vpu { > + compatible = "amlogic,meson-gx-pwrc-vpu"; > + #power-domain-cells = <0>; > + amlogic,hhi-sysctrl = <&sysctrl>; > + resets = <&reset RESET_VIU>, > + <&reset RESET_VENC>, > + <&reset RESET_VCBUS>, > + <&reset RESET_BT656>, > + <&reset RESET_DVIN_RESET>, > + <&reset RESET_RDMA>, > + <&reset RESET_VENCI>, > + <&reset RESET_VENCP>, > + <&reset RESET_VDAC>, > + <&reset RESET_VDI6>, > + <&reset RESET_VENCL>, > + <&reset RESET_VID_LOCK>; > + clocks = <&clkc CLKID_VPU>, > + <&clkc CLKID_VAPB>; > + clock-names = "vpu", "vapb"; > + }; > +}; > + > + > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt b/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt new file mode 100644 index 0000000..94c2474 --- /dev/null +++ b/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt @@ -0,0 +1,65 @@ +Amlogic Meson Power Controller +============================== + +The Amlogic Meson SoCs embeds an internal Power domain controller. + +VPU Power Domain +---------------- + +The Video Processing Unit power domain is controlled by this power controller, +but the domain requires some external resources to meet the correct power +sequences. +The bindings must respect the power domain bindings as described in the file +power_domain.txt + +Device Tree Bindings: +--------------------- + +Required properties: +- compatible: value should be different for each SoC family as : + - GXBB (S905) : "amlogic,meson-gxbb-vpu" + - GXL (S905X, S905D) : "amlogic,meson-gxl-vpu" + - GXM (S912) : "amlogic,meson-gxm-vpu" + followed by the common "amlogic,meson-gx-vpu" +- #power-domain-cells: should be 0 +- amlogic,hhi-sysctrl: phandle to the HHI sysctrl node +- resets: phandles to the reset lines needed for this power demain sequence + as described in ../reset/reset.txt +- clocks: from common clock binding: handle to VPU and VAPB clocks +- clock-names: from common clock binding: must contain "vpu", "vapb" + corresponding to entry in the clocks property. + +Parent node should have the following properties : +- compatible: "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd" +- reg: base address and size of the AO system control register space. + +Example: +------- + +ao_sysctrl: sys-ctrl@0 { + compatible = "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd"; + reg = <0x0 0x0 0x0 0x100>; + + pwrc_vpu: power-controller-vpu { + compatible = "amlogic,meson-gx-pwrc-vpu"; + #power-domain-cells = <0>; + amlogic,hhi-sysctrl = <&sysctrl>; + resets = <&reset RESET_VIU>, + <&reset RESET_VENC>, + <&reset RESET_VCBUS>, + <&reset RESET_BT656>, + <&reset RESET_DVIN_RESET>, + <&reset RESET_RDMA>, + <&reset RESET_VENCI>, + <&reset RESET_VENCP>, + <&reset RESET_VDAC>, + <&reset RESET_VDI6>, + <&reset RESET_VENCL>, + <&reset RESET_VID_LOCK>; + clocks = <&clkc CLKID_VPU>, + <&clkc CLKID_VAPB>; + clock-names = "vpu", "vapb"; + }; +}; + +
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> --- .../bindings/power/amlogic,meson-gx-pwrc.txt | 65 ++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt