[PATCH v3 2/8] mfd: ac100: Add device tree bindings for X-Powers AC100 codec/RTC combo IC
From: Chen-Yu Tsai <hidden>
Date: 2016-06-20 03:19:21
Also in:
linux-clk, linux-devicetree, linux-rtc, lkml
Subsystem:
multifunction devices (mfd), open firmware and flattened device tree bindings, the rest · Maintainers:
Lee Jones, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Signed-off-by: Chen-Yu Tsai <redacted> --- Changes since v2: - Fix interrupt line for ac100_codec in provided example. --- Documentation/devicetree/bindings/mfd/ac100.txt | 42 +++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/ac100.txt
diff --git a/Documentation/devicetree/bindings/mfd/ac100.txt b/Documentation/devicetree/bindings/mfd/ac100.txt
new file mode 100644
index 000000000000..a793954bb952
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/ac100.txt@@ -0,0 +1,42 @@ +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 + - rtc + - compatible: "x-powers,ac100-rtc" + - interrupt-parent: The parent interrupt controller + - interrupts: SoC NMI / GPIO interrupt connected to the IRQ_RTC pin + - #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 at e89 { + compatible = "x-powers,ac100"; + reg = <0xe89>; + + ac100_codec { + compatible = "x-powers,ac100-codec"; + interrupt-parent = <&r_pio>; + interrupts = <0 9 IRQ_TYPE_LEVEL_LOW>; /* PL9 */ + }; + + ac100_rtc { + compatible = "x-powers,ac100-rtc"; + interrupt-parent = <&nmi_intc>; + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + #clock-cells = <1>; + clock-output-names = "cko1_rtc", "cko2_rtc", "cko3_rtc"; + }; +};
--
2.8.1