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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt')
-rw-r--r-- | Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt b/Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt new file mode 100644 index 000000000..b8f843fa6 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/mcp16502-regulator.txt @@ -0,0 +1,143 @@ +MCP16502 PMIC + +Required properties: +- compatible: "microchip,mcp16502" +- reg: I2C slave address +- lpm-gpios: GPIO for LPM pin. Note that this GPIO *must* remain high during + suspend-to-ram, keeping the PMIC into HIBERNATE mode. +- regulators: A node that houses a sub-node for each regulator within + the device. Each sub-node is identified using the node's + name. The content of each sub-node is defined by the + standard binding for regulators; see regulator.txt. + +Regualtors of MCP16502 PMIC: +1) VDD_IO - Buck (1.2 - 3.7 V) +2) VDD_DDR - Buck (0.6 - 1.85 V) +3) VDD_CORE - Buck (0.6 - 1.85 V) +4) VDD_OTHER - BUCK (0.6 - 1.85 V) +5) LDO1 - LDO (1.2 - 3.7 V) +6) LDO2 - LDO (1.2 - 3.7 V) + +Regulator modes: +2 - FPWM: higher precision, higher consumption +4 - AutoPFM: lower precision, lower consumption + +Each regulator is defined using the standard binding for regulators. + +Example: + +mcp16502@5b { + compatible = "microchip,mcp16502"; + reg = <0x5b>; + status = "okay"; + lpm-gpios = <&pioBU 7 GPIO_ACTIVE_HIGH>; + + regulators { + VDD_IO { + regulator-name = "VDD_IO"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3700000>; + regulator-initial-mode = <2>; + regulator-allowed-modes = <2>, <4>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + + regulator-state-mem { + regulator-off-in-suspend; + regulator-mode = <4>; + }; + }; + + VDD_DDR { + regulator-name = "VDD_DDR"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <1850000>; + regulator-initial-mode = <2>; + regulator-allowed-modes = <2>, <4>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + }; + + VDD_CORE { + regulator-name = "VDD_CORE"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <1850000>; + regulator-initial-mode = <2>; + regulator-allowed-modes = <2>, <4>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + + regulator-state-mem { + regulator-off-in-suspend; + regulator-mode = <4>; + }; + }; + + VDD_OTHER { + regulator-name = "VDD_OTHER"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <1850000>; + regulator-initial-mode = <2>; + regulator-allowed-modes = <2>, <4>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + + regulator-state-mem { + regulator-off-in-suspend; + regulator-mode = <4>; + }; + }; + + LDO1 { + regulator-name = "LDO1"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3700000>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + }; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + LDO2 { + regulator-name = "LDO2"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3700000>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + }; + + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + }; +}; |