dt-bindings: document Rockchip saradc
From: Heiko Stuebner <heiko@...> Date: Wed, 9 Jul 2014 01:17:35 +0200
Commit-Message
This add the necessary binding documentation for the saradc found in all recent processors from Rockchip. Signed-off-by: Heiko Stuebner <heiko@...>
Patch-Comment
changes since v1: - fix typos found by Hartmut Knaack .../bindings/iio/adc/rockchip-saradc.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
Statistics
- 28 lines added
- 0 lines removed
Changes
-------- Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt ---------
new file mode 100644
index 0000000..e38f13d
@@ -0,0 +1,28 @@
+Rockchip Successive Approximation Register (SAR) A/D Converter bindings
+
+Required properties:
+- compatible: Should be "rockchip,saradc"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: The interrupt number to the cpu. The interrupt specifier format
+ depends on the interrupt controller.
+- clocks: Must contain an entry for each entry in clock-names.
+- clock-names: Shall be "saradc" for the converter-clock, and "apb_pclk" for
+ the peripheral clock.
+- vref-supply: The regulator supply ADC reference voltage.
+- #io-channel-cells: Should be 1, see ../iio-bindings.txt
+
+Optional properties :
+- clock-frequency : converter frequency in Hz. If omitted, 1MHz is used.
+
+Example:
+ saradc: saradc@2006c000 {
+ compatible = "rockchip,saradc";
+ reg = <0x2006c000 0x100>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
+ clock-names = "saradc", "apb_pclk";
+ #io-channel-cells = <1>;
+ vref-supply = <&vcc18>;
+ clock-frequency = <1000000>;
+ };