mfd: Add device tree probe support for mc13xxx

This adds device tree probe support for mc13xxx mfd driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mfd/mc13xxx.txt b/Documentation/devicetree/bindings/mfd/mc13xxx.txt
new file mode 100644
index 000000000000..4ed46a610633
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/mc13xxx.txt
@@ -0,0 +1,53 @@
+* Freescale MC13783/MC13892 Power Management Integrated Circuit (PMIC)
+
+Required properties:
+- compatible : Should be "fsl,mc13783" or "fsl,mc13892"
+
+Optional properties:
+- fsl,mc13xxx-uses-adc : Indicate the ADC is being used
+- fsl,mc13xxx-uses-codec : Indicate the Audio Codec is being used
+- fsl,mc13xxx-uses-rtc : Indicate the RTC is being used
+- fsl,mc13xxx-uses-touch : Indicate the touchscreen controller is being used
+
+Sub-nodes:
+- regulators : Contain the regulator nodes.  The name of regulator node
+  is being used by mc13xxx regulator driver to find the correct relator
+  device.
+
+  The bindings details of individual regulator device can be found in:
+  Documentation/devicetree/bindings/regulator/regulator.txt
+
+Examples:
+
+ecspi@70010000 { /* ECSPI1 */
+        fsl,spi-num-chipselects = <2>;
+        cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
+                   <&gpio3 25 0>; /* GPIO4_25 */
+        status = "okay";
+
+        pmic: mc13892@0 {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                compatible = "fsl,mc13892";
+                spi-max-frequency = <6000000>;
+                reg = <0>;
+                interrupt-parent = <&gpio0>;
+                interrupts = <8>;
+
+                regulators {
+                        sw1_reg: mc13892__sw1 {
+                                regulator-min-microvolt = <600000>;
+                                regulator-max-microvolt = <1375000>;
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+
+                        sw2_reg: mc13892__sw2 {
+                                regulator-min-microvolt = <900000>;
+                                regulator-max-microvolt = <1850000>;
+                                regulator-boot-on;
+                                regulator-always-on;
+                        };
+                };
+        };
+};