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https://github.com/AsahiLinux/u-boot
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46 lines
1.3 KiB
Text
46 lines
1.3 KiB
Text
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Sandbox, PMIC regulators
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This device uses two drivers:
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- drivers/power/pmic/sandbox.c (as parent I/O device)
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- drivers/power/regulator/sandbox.c (for child regulators)
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This file describes the binding info for the REGULATOR driver.
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First, please read the binding info for the PMIC:
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- doc/device-tree-bindings/pmic/sandbox.txt
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Required subnodes:
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- ldoN { };
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- buckN { };
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The sandbox PMIC can support: ldo1, ldo2, buck1, buck2.
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For each PMIC's regulator subnode, there is one required property:
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- regulator-name: used for regulator uclass platform data '.name'
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Optional:
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- regulator-min-microvolt: minimum allowed Voltage to set
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- regulator-max-microvolt: minimum allowed Voltage to set
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- regulator-min-microamps: minimum allowed Current limit to set (LDO1/BUCK1)
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- regulator-max-microamps: minimum allowed Current limit to set (LDO1/BUCK1)
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- regulator-always-on: regulator should be never disabled
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- regulator-boot-on: regulator should be enabled by the bootloader
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Example PMIC's regulator subnodes:
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ldo1 {
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regulator-name = "VDD_1.0V";
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1200000>;
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regulator-min-microamps = <100000>;
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regulator-max-microamps = <400000>;
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regulator-always-on;
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};
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buck2 {
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regulator-name = "VDD_1.8V";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-boot-on;
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};
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