On Fri, 08 Jul 2016, Chen-Yu Tsai wrote: > The AC100 is a multifunction device with an audio codec subsystem and > an RTC subsystem. These two subsystems share a common register space > and host interface. > > Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx> > Acked-by: Rob Herring <robh@xxxxxxxxxx> > --- > Changes since v4: > > - Style changes suggested by Lee. > - Added commit message. > - Added Rob's ack. > > Changes since v3: > > - Fixed device node names and added labels. > - Added clock output from codec and input to rtc. > > Changes since v2: > > - Fix interrupt line for ac100_codec in provided example. > > --- > Documentation/devicetree/bindings/mfd/ac100.txt | 54 +++++++++++++++++++++++++ > 1 file changed, 54 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/ac100.txt For my own reference: Acked-by: Lee Jones <lee.jones@xxxxxxxxxx> > diff --git a/Documentation/devicetree/bindings/mfd/ac100.txt b/Documentation/devicetree/bindings/mfd/ac100.txt > new file mode 100644 > index 000000000000..b8ef00667599 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/ac100.txt > @@ -0,0 +1,54 @@ > +X-Powers AC100 Codec/RTC IC Device Tree bindings > + > +AC100 is a audio codec and RTC subsystem combo IC. The 2 parts are > +separated, including power supplies and interrupt lines, but share > +a common register address space and host interface. > + > +Required properties: > +- compatible: "x-powers,ac100" > +- reg: The I2C slave address or RSB hardware address for the chip > +- sub-nodes: > + - codec > + - compatible: "x-powers,ac100-codec" > + - interrupt-parent: The parent interrupt controller > + - interrupts: SoC NMI / GPIO interrupt connected to the > + IRQ_AUDIO pin > + - #clock-cells: Shall be 0 > + - clock-output-names: "4M_adda" > + > + - see clock/clock-bindings.txt for common clock bindings > + > + - rtc > + - compatible: "x-powers,ac100-rtc" > + - interrupt-parent: The parent interrupt controller > + - interrupts: SoC NMI / GPIO interrupt connected to the > + IRQ_RTC pin > + - clocks: A phandle to the codec's "4M_adda" clock > + - #clock-cells: Shall be 1 > + - clock-output-names: "cko1_rtc", "cko2_rtc", "cko3_rtc" > + > + - see clock/clock-bindings.txt for common clock bindings > + > +Example: > + > +ac100: codec@e89 { > + compatible = "x-powers,ac100"; > + reg = <0xe89>; > + > + ac100_codec: codec { > + compatible = "x-powers,ac100-codec"; > + interrupt-parent = <&r_pio>; > + interrupts = <0 9 IRQ_TYPE_LEVEL_LOW>; /* PL9 */ > + #clock-cells = <0>; > + clock-output-names = "4M_adda"; > + }; > + > + ac100_rtc: rtc { > + compatible = "x-powers,ac100-rtc"; > + interrupt-parent = <&nmi_intc>; > + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; > + clocks = <&ac100_codec>; > + #clock-cells = <1>; > + clock-output-names = "cko1_rtc", "cko2_rtc", "cko3_rtc"; > + }; > +}; -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html