From mboxrd@z Thu Jan 1 00:00:00 1970 From: wens@csie.org (Chen-Yu Tsai) Date: Wed, 15 Jun 2016 18:27:39 +0800 Subject: [PATCH v2 02/10] mfd: ac100: Add device tree bindings for X-Powers AC100 codec/RTC combo IC In-Reply-To: <1465986467-14802-1-git-send-email-wens@csie.org> References: <1465986467-14802-1-git-send-email-wens@csie.org> Message-ID: <1465986467-14802-3-git-send-email-wens@csie.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Signed-off-by: Chen-Yu Tsai --- 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..fbab623e6fba --- /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 = <&nmi_intc>; + interrupts = <0 IRQ_TYPE_LEVEL_LOW>; + }; + + 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