mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-14 22:44:27 +08:00
regulator: dt-bindings: add MCP16502 regulator bindings
This patch describes the compatible and the device tree bindings necessary for the MCP16502 PMIC. Signed-off-by: Andrei Stefanescu <andrei.stefanescu@microchip.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
parent
8a582fa942
commit
96f3fb86d7
@ -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;
|
||||
};
|
||||
};
|
||||
|
||||
};
|
||||
};
|
Loading…
Reference in New Issue
Block a user