[PATCH 3/7] DT: add binding for MXS regulator
From: Stefan Wahren <hidden>
Date: 2015-03-22 00:29:59
Also in:
linux-arm-kernel, linux-pm
Subsystem:
open firmware and flattened device tree bindings, the rest, voltage and current regulator framework · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Liam Girdwood, Mark Brown
This patch adds the device tree bindings for the Freescale MXS on-chip regulators. Signed-off-by: Stefan Wahren <redacted> --- .../bindings/regulator/mxs-regulator.txt | 70 ++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/mxs-regulator.txt
diff --git a/Documentation/devicetree/bindings/regulator/mxs-regulator.txt b/Documentation/devicetree/bindings/regulator/mxs-regulator.txt
new file mode 100644
index 0000000..88452d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mxs-regulator.txt@@ -0,0 +1,70 @@ +Regulators for Freescale i.MX23/i.MX28 + +Required properties: +For imx23 regulators +- compatible: + - "fsl,imx23-dcdc" for DC-DC converter + - "fsl,imx23-vddd" for VDDD linear regulator + - "fsl,imx23-vdda" for VDDA linear regulator + - "fsl,imx23-vddio" for VDDIO linear regulator +For imx28 regulators +- compatible: + - "fsl,imx28-dcdc" for DC-DC converter + - "fsl,imx28-vddd" for VDDD linear regulator + - "fsl,imx28-vdda" for VDDA linear regulator + - "fsl,imx28-vddio" for VDDIO linear regulator +- reg: Address and length of the register set for the device. It contains + the information of registers in the same order as described by reg-names +- reg-names: Should contain the reg names + - "base-address" - contains base address of regulator + - "status-address" - contains status address of regulator + - "v5ctrl-address" - contains 5V control address of DC-DC converter + (required only for linear regulators) + - "misc-address" - contains misc control address of DC-DC converter + (required only for DC-DC converter) + +Optional properties: +- switching-frequency: switching frequency of the DC-DC converter in Hz. + Possible values are <19200000>, <22000000> or <24000000> (default). + +Any regulator property defined as part of the core regulator +binding, defined in regulator.txt, can also be used. + +Example for i.MX28: + + power: power@80044000 { + compatible = "fsl,imx28-power"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x80044000 0x2000>; + interrupts = <6>; + ranges; + + dcdc: regulator@80044010 { + reg = <0x80044010 0x10>, + <0x80044090 0x10>, + <0x800440c0 0x10>; + reg-names = "base-address", + "misc-address", + "status-address"; + compatible = "fsl,imx28-dcdc"; + regulator-name = "dcdc"; + regulator-boot-on; + regulator-always-on; + switching-frequency = <24000000>; + }; + + reg_vddd: regulator@80044040 { + reg = <0x80044040 0x10>, + <0x80044010 0x10>, + <0x800440c0 0x10>; + reg-names = "base-address", + "v5ctrl-address", + "status-address"; + compatible = "fsl,imx28-vddd"; + regulator-name = "vddd"; + regulator-min-microvolt = <1350000>; + regulator-max-microvolt = <1550000>; + }; + }; +
--
1.7.9.5
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