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authorSascha Hauer <s.hauer@pengutronix.de>2016-10-18 10:10:24 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2016-10-18 10:10:24 +0200
commitbfbf18d991756858337f7700e8ff0a6f0dc31afc (patch)
treecf3568de4fdff1891e277507f08f49a871682706 /dts/Bindings/mfd/ac100.txt
parent834f6bf5e5f1169065376ad1aeb6a6266e66ce5c (diff)
downloadbarebox-bfbf18d991756858337f7700e8ff0a6f0dc31afc.tar.gz
barebox-bfbf18d991756858337f7700e8ff0a6f0dc31afc.tar.xz
dts: update to v4.9-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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+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";
+ };
+};