| Message ID | 20170316204748.8596-2-icenowy@aosc.xyz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Mar 17, 2017 at 04:47:41AM +0800, Icenowy Zheng wrote: > Allwinner "Display Engine 2.0" contains some clock controls in it. > > Add them as a clock driver, and make a device tree binding. > > Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> > --- > .../devicetree/bindings/clock/sun8i-de2.txt | 31 ++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > create mode 100644 Documentation/devicetree/bindings/clock/sun8i-de2.txt > > diff --git a/Documentation/devicetree/bindings/clock/sun8i-de2.txt b/Documentation/devicetree/bindings/clock/sun8i-de2.txt > new file mode 100644 > index 000000000000..c19496f037a4 > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/sun8i-de2.txt > @@ -0,0 +1,31 @@ > +Allwinner Display Engine 2.0 Clock Control Binding > +-------------------------------------------------- > + > +Required properties : > +- compatible: must contain one of the following compatibles: > + - "allwinner,sun8i-a83t-de2-clk" > + - "allwinner,sun50i-a64-de2-clk" > + - "allwinner,sun50i-h5-de2-clk" > + > +- reg: Must contain the registers base address and length > +- clocks: phandle to the clocks feeding the display engine subsystem. > + Three are needed: > + - "mod": the display engine module clock > + - "bus": the bus clock for the whole display engine subsystem > +- clock-names: Must contain the clock names described just above > +- resets: phandle to the reset control for the display engine subsystem. > +- #clock-cells : must contain 1 > +- #reset-cells : must contain 1 > + > +Example: > +de2_clocks: clock@01000000 { > + compatible = "allwinner,sun50i-a64-de2-clk"; > + reg = <0x01000000 0x1c>; Please use the full size of the memory area allocated to that device. Maxime
diff --git a/Documentation/devicetree/bindings/clock/sun8i-de2.txt b/Documentation/devicetree/bindings/clock/sun8i-de2.txt new file mode 100644 index 000000000000..c19496f037a4 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/sun8i-de2.txt @@ -0,0 +1,31 @@ +Allwinner Display Engine 2.0 Clock Control Binding +-------------------------------------------------- + +Required properties : +- compatible: must contain one of the following compatibles: + - "allwinner,sun8i-a83t-de2-clk" + - "allwinner,sun50i-a64-de2-clk" + - "allwinner,sun50i-h5-de2-clk" + +- reg: Must contain the registers base address and length +- clocks: phandle to the clocks feeding the display engine subsystem. + Three are needed: + - "mod": the display engine module clock + - "bus": the bus clock for the whole display engine subsystem +- clock-names: Must contain the clock names described just above +- resets: phandle to the reset control for the display engine subsystem. +- #clock-cells : must contain 1 +- #reset-cells : must contain 1 + +Example: +de2_clocks: clock@01000000 { + compatible = "allwinner,sun50i-a64-de2-clk"; + reg = <0x01000000 0x1c>; + clocks = <&ccu CLK_DE>, + <&ccu CLK_BUS_DE>; + clock-names = "mod", + "bus"; + resets = <&ccu RST_BUS_DE>; + #clock-cells = <1>; + #reset-cells = <1>; +};
Allwinner "Display Engine 2.0" contains some clock controls in it. Add them as a clock driver, and make a device tree binding. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> --- .../devicetree/bindings/clock/sun8i-de2.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/sun8i-de2.txt