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authorYing-Chun Liu (PaulLiu) <paul.liu@linaro.org>2012-03-27 15:54:01 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-03-28 11:52:10 +0100
commit2f2cc27f50e3d232602d3b7c972071b4a30e5e38 (patch)
tree6cb0184e8d2b905698b6e0562e48db29c0a80c3d
parent9300928692f835f76f5604b3b51c3085977edf68 (diff)
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>
-rw-r--r--Documentation/devicetree/bindings/regulator/anatop-regulator.txt29
-rw-r--r--drivers/regulator/anatop-regulator.c5
2 files changed, 32 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt
new file mode 100644
index 00000000000..357758cb6e9
--- /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 17499a55113..53969af1755 100644
--- 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",