From: "Patil, Rachna" <rachna@xxxxxx>
Signed-off-by: Patil, Rachna <rachna@xxxxxx>
---
Changes in v4:
Subnodes and their properties documentation added.
Non-standard properties prefixed with vendor name.
.../devicetree/bindings/mfd/ti_am335x_tscadc.txt | 52 ++++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt
diff --git a/Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt b/Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt
new file mode 100644
index 0000000..0100771
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt
@@ -0,0 +1,52 @@
+Texas Instruments - TSC / ADC multi-functional device
+
+ti_tscadc is a multi-function device with touchscreen and ADC on chip.
+This document describes the binding for mfd device.
+
+Required properties:
+- compatible: "ti,ti-tscadc"
+- reg: Specifies the address of MFD block
+- interrupts: IRQ line connected to the main SoC
+- interrupt-parent: The parent interrupt controller
+
+Optional properties:
+- ti,hwmods: Hardware information related to TSC/ADC MFD device
+
+Sub-nodes:
+Device Description
+------ -----------
+tsc Touchscreen
+adc Analog to digital converter
+
+Sub-node device required properties:
+tsc:
+- ti,wires: 4/5/8 wire touchscreen support on the platform.
+- ti,x-plate-resistance: X plate resistance.
+- ti,steps-to-configure: A step is configured to read a single co-ordinate value,
+ can be applied more number of times for better results.
+- ti,wire-config: Order for connecting wires on touchscreen.
+
+adc:
+- ti,adc-channels: Number of ADC channels used.
+
+Example:
+
+ tscadc: tscadc@44e0d000 {
+ compatible = "ti,ti-tscadc";
+ reg = <0x44e0d000 0x1000>;
+
+ interrupt-parent = <&intc>;
+ interrupts = <16>;
+ ti,hwmods = "adc_tsc";
+
+ tsc {
+ ti,wires = <4>;
+ ti,x-plate-resistance = <200>;
+ ti,steps-to-configure = <5>;
+ ti,wire-config = <0x00 0x11 0x22 0x33>;
+ };
+
+ adc {
+ ti,adc-channels = <4>;
+ };
+ };
--
1.7.9.5
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