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Diffstat (limited to 'doc/device-tree-bindings/regulator/sandbox.txt')
| -rw-r--r-- | doc/device-tree-bindings/regulator/sandbox.txt | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/regulator/sandbox.txt b/doc/device-tree-bindings/regulator/sandbox.txt new file mode 100644 index 0000000..d70494c --- /dev/null +++ b/doc/device-tree-bindings/regulator/sandbox.txt @@ -0,0 +1,45 @@ +Sandbox, PMIC regulators + +This device uses two drivers: +- drivers/power/pmic/sandbox.c (as parent I/O device) +- drivers/power/regulator/sandbox.c (for child regulators) + +This file describes the binding info for the REGULATOR driver. + +First, please read the binding info for the PMIC: +- doc/device-tree-bindings/pmic/sandbox.txt + +Required subnodes: +- ldoN { }; +- buckN { }; + +The sandbox PMIC can support: ldo1, ldo2, buck1, buck2. + +For each PMIC's regulator subnode, there is one required property: +- regulator-name: used for regulator uclass platform data '.name' + +Optional: +- regulator-min-microvolt: minimum allowed Voltage to set +- regulator-max-microvolt: minimum allowed Voltage to set +- regulator-min-microamps: minimum allowed Current limit to set (LDO1/BUCK1) +- regulator-max-microamps: minimum allowed Current limit to set (LDO1/BUCK1) +- regulator-always-on: regulator should be never disabled +- regulator-boot-on: regulator should be enabled by the bootloader + +Example PMIC's regulator subnodes: + +ldo1 { + regulator-name = "VDD_1.0V"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1200000>; + regulator-min-microamps = <100000>; + regulator-max-microamps = <400000>; + regulator-always-on; +}; + +buck2 { + regulator-name = "VDD_1.8V"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-boot-on; +}; |