hello,all
I made power manage for IMX8:
pfuze100_regulator: loading out-of-tree module taints kernel.
Best Regards
Thanks
Grayli
Hi Graily
i,MX8 series have specific in power management as described in
sect.2.5 Power Management attached Linux Manual, in particular:
On i.MX 8 and i.MX 8X:
• No hardware low-power mode is available.
• All low-power modes are implemented in system controller firware (SCFW) using
software method.
• SCFW powers off clusters/CPUs when the system is suspended.
Best regards
igor
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linux-imx\arch\arm64\configs:
CONFIG_REGULATOR_PFUZE100=y
.dtsi add
&i2c1 {
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_lpi2c1>;
status = "okay";
pmic: pfuze100@08 {
compatible = "fsl,pfuze100";
reg = <0x08>;
status = "okay";
regulators {
sw1a_reg: sw1ab {
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <1875000>;
};
sw1c_reg: sw1c {
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <1875000>;
};
sw2_reg: sw2 {
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
sw3a_reg: sw3ab {
regulator-min-microvolt = <400000>;
regulator-max-microvolt = <1975000>;
regulator-always-on;
};
sw4_reg: sw4 {
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
swbst_reg: swbst {
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5150000>;
};
snvs_reg: vsnvs {
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
};
vref_reg: vrefddr {
regulator-always-on;
};
vgen1_reg: vgen1 {
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1550000>;
};
vgen2_reg: vgen2 {
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1550000>;
regulator-always-on;
};
vgen3_reg: vgen3 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vgen4_reg: vgen4 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vgen5_reg: vgen5 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vgen6_reg: vgen6 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
};
};
};
};
and /proc/device-tree/i2c@xxx have node on board.
but i donot konw how to use?
regulator_get(NULL,xxx), what is name?
Best Regards
Thanks
Grayli
hello,
After kernel startup is over,The APP wants to change the LDOn&SW output of the PMIC;
Best Regards
Thanks
Grayli