[prev in list] [next in list] [prev in thread] [next in thread]
List: linux-clk
Subject: [PATCH v4 1/7] mfd: ac100: Add device tree bindings for X-Powers AC100 codec/RTC combo IC
From: Chen-Yu Tsai <wens () csie ! org>
Date: 2016-06-30 15:58:45
Message-ID: 1467302331-9663-2-git-send-email-wens () csie ! org
[Download RAW message or body]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
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 | 49 +++++++++++++++++++++++++
1 file changed, 49 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..31e6f9cc41bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/ac100.txt
@@ -0,0 +1,49 @@
+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";
+ };
+};
--
2.8.1
--
To unsubscribe from this list: send the line "unsubscribe linux-clk" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic