Re: [PATCH v2 1/3] Documentation: DT: Add iproc-static-adc binding
From: Rob Herring <hidden>
Date: 2016-06-20 18:05:06
Also in:
linux-arm-kernel, linux-iio, lkml
On Sun, Jun 19, 2016 at 03:36:28PM +0530, Raveendra Padasalagi wrote:
quoted hunk ↗ jump to hunk
The patch adds devicetree binding document for broadcom's iproc-static-adc controller driver. Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi-dY08KVG/lbpWk0Htik3J/w@public.gmane.org> Reviewed-by: Ray Jui <ray.jui-dY08KVG/lbpWk0Htik3J/w@public.gmane.org> Reviewed-by: Scott Branden <scott.branden-dY08KVG/lbpWk0Htik3J/w@public.gmane.org> --- .../bindings/iio/adc/brcm,iproc-static-adc.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txtdiff --git a/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt b/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt new file mode 100644 index 0000000..1de0dfa --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/brcm,iproc-static-adc.txt@@ -0,0 +1,43 @@ +* Broadcom's IPROC Static ADC controller + +Required properties: + +- compatible: Must be "brcm,iproc-static-adc" +
+- #address-cells: Specify the number of u32 entries needed in child nodes. + Should set to 1. + +- #size-cells: Specify number of u32 entries needed to specify child nodes size + in reg property. Should set to 1.
Why are these needed? What child nodes can you have?
+
+- adc-syscon: Handler of syscon node defining physical base address of the
+ controller and length of memory mapped region.
+
+- #io-channel-cells = <1>; As ADC has multiple outputs
+ refer to Documentation/devicetree/bindings/iio/iio-bindings.txt for details.
+
+- clocks: Clock used for this block.
+
+- clock-names: Clock name should be given as tsc_clk.
+
+- interrupts: interrupt line number.
+
+For example:
+
+ ts_adc_syscon: ts_adc_syscon@180a6000 {
+ compatible = "brcm,iproc-ts-adc-syscon","syscon";
+ reg = <0x180a6000 0xc30>;
+ };
+
+ adc: adc@180a6000 {
+ compatible = "brcm,iproc-static-adc";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ adc-syscon = <&ts_adc_syscon>;
+ #io-channel-cells = <1>;
+ io-channel-ranges;
+ clocks = <&asiu_clks BCM_CYGNUS_ASIU_ADC_CLK>;
+ clock-names = "tsc_clk";
+ interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
--
1.9.1