regulator: anatop: patching to device-tree property "reg".

Change "reg" to "anatop-reg-offset" due to there is a warning of handling no
size field in reg.

This patch also adds the missing device-tree binding documentation.

Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt
new file mode 100644 (file)
index 0000000..357758c
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt
@@ -0,0 +1,29 @@
+Anatop Voltage regulators
+
+Required properties:
+- compatible: Must be "fsl,anatop-regulator"
+- anatop-reg-offset: Anatop MFD register offset
+- anatop-vol-bit-shift: Bit shift for the register
+- anatop-vol-bit-width: Number of bits used in the register
+- anatop-min-bit-val: Minimum value of this register
+- anatop-min-voltage: Minimum voltage of this regulator
+- anatop-max-voltage: Maximum voltage of this regulator
+
+Any property defined as part of the core regulator
+binding, defined in regulator.txt, can also be used.
+
+Example:
+
+       regulator-vddpu {
+               compatible = "fsl,anatop-regulator";
+               regulator-name = "vddpu";
+               regulator-min-microvolt = <725000>;
+               regulator-max-microvolt = <1300000>;
+               regulator-always-on;
+               anatop-reg-offset = <0x140>;
+               anatop-vol-bit-shift = <9>;
+               anatop-vol-bit-width = <5>;
+               anatop-min-bit-val = <1>;
+               anatop-min-voltage = <725000>;
+               anatop-max-voltage = <1300000>;
+       };

diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index 17499a5..53969af 100644 (file)
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -138,9 +138,10 @@ static int __devinit anatop_regulator_probe(struct platform_device *pdev)
        rdesc->type = REGULATOR_VOLTAGE;
        rdesc->owner = THIS_MODULE;
        sreg->mfd = anatopmfd;
-       ret = of_property_read_u32(np, "reg", &sreg->control_reg);
+       ret = of_property_read_u32(np, "anatop-reg-offset",
+                                  &sreg->control_reg);
        if (ret) {
-               dev_err(dev, "no reg property set\n");
+               dev_err(dev, "no anatop-reg-offset property set\n");
                goto anatop_probe_end;
        }
        ret = of_property_read_u32(np, "anatop-vol-bit-width",