Specify voltage regulators in device tree

hansemro commented 3 years ago

Resources:

hansemro commented 3 years ago

Kernel log from 3.4.48:

[    0.295166] VUSB: 3300 mV normal standby
[    0.298645] twl6030_usb twl6030_usb: Initialized TWL6030 USB module
[    0.299774] V2V1: 2100 mV 
[    0.300231] VMMC: 1200 <--> 3000 mV at 1800 mV normal standby
[    0.301116] VPP: 1800 <--> 2500 mV at 1900 mV normal standby
[    0.301696] VUSIM: 1200 <--> 3300 mV at 1800 mV normal standby
[    0.302581] VCXIO: 1800 mV normal standby
[    0.303283] VDAC: 1800 mV normal standby
[    0.304107] VAUX1_6030: 1000 <--> 3300 mV at 2800 mV normal standby
[    0.305145] VAUX2_6030: 1200 <--> 3300 mV at 1800 mV normal standby
[    0.305725] VAUX3_6030: 1000 <--> 3300 mV at 1200 mV normal standby
[    0.306640] VANA: 2100 mV normal standby
[    0.307464] CLK32KG: normal

hansemro commented 3 years ago

arch/arm/boot/dts/omap4-kc1.dts:

&vaux1 {
    regulator-min-microvolt = <1000000>;
    regulator-max-microvolt = <3300000>;
    regulator-always-on;
};

&vaux2 {
    regulator-min-microvolt = <1200000>;
    regulator-max-microvolt = <3300000>;
    regulator-always-on;
};

&vaux3 {
    regulator-min-microvolt = <1000000>;
    regulator-max-microvolt = <3300000>;
};

&vmmc {
    regulator-min-microvolt = <1200000>;
    regulator-max-microvolt = <3000000>;
};

&vpp {
    regulator-min-microvolt = <1800000>;
    regulator-max-microvolt = <2500000>;
    regulator-state-mem {
        regulator-off-in-suspend;
    };
};

&vusim {
    regulator-min-microvolt = <1200000>;
    regulator-max-microvolt = <3300000>;
};

&vana {
    regulator-min-microvolt = <2100000>;
    regulator-max-microvolt = <2100000>;
};

&vcxio {
    regulator-min-microvolt = <1800000>;
    regulator-max-microvolt = <1800000>;
};

&vdac {
    regulator-min-microvolt = <1800000>;
    regulator-max-microvolt = <1800000>;
};

&vusb {
    regulator-min-microvolt = <3300000>;
    regulator-max-microvolt = <3300000>;
    regulator-state-mem {
        regulator-off-in-suspend;
    };
};

Kernel log (5.11.0):

[    1.640228] pbias_mmc_omap4: 1800 <--> 3000 mV at 3000 mV, disabled
[    1.642578] abb_mpu: 1025 <--> 1389 mV, enabled
[    2.825622] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001, bcdDevice= 5.11
[    3.053283] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[    3.061798] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[    3.070312] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[    3.078796] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[    3.087280] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[    3.095764] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
[    3.104278] twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
[    3.380432] vwl1271: 1800 mV, disabled
[    3.381530] reg-fixed-voltage wl12xx_vmmc: vwl1271 supplying 1800000uV
[    3.632934] VAUX1_6030: 1000 <--> 3300 mV at 2800 mV, enabled
[    3.637512] VAUX2_6030: 1200 <--> 3300 mV at 1800 mV, enabled
[    3.641265] VAUX3_6030: 1000 <--> 3300 mV at 1200 mV, disabled
[    3.645172] VMMC: 1200 <--> 3000 mV at 1800 mV, disabled
[    3.648986] VPP: 1800 <--> 2500 mV at 1900 mV, disabled
[    3.652770] VUSIM: 1200 <--> 3300 mV at 1800 mV, disabled
[    3.655975] VDAC: 1800 mV, enabled
[    3.658721] VANA: 2100 mV, enabled
[    3.662322] VCXIO: 1800 mV, enabled
[    3.665222] VUSB: 3300 mV, disabled
[    3.667327] V1V8: override min_uV, 1 -> 1800000
[    3.667327] V1V8: override max_uV, 2147483647 -> 1800000
[    3.668579] V1V8: 1800 mV, enabled
[    3.670654] V2V1: override min_uV, 1 -> 2100000
[    3.670654] V2V1: override max_uV, 2147483647 -> 2100000
[    3.675933] V2V1: 2100 mV, enabled
[    3.818389] VAUX1_6030: ramp_delay not set
[   34.399414] VDAC: disabling
[   34.400512] VANA: disabling

hansemro commented 3 years ago

TWL6030 voltage regulator notes:

VDAC: ?
VMMC: vmmc1 (omap_hsmmc.0)
VAUX1: eMMC/vmmc2 (omap_hsmmc.1)
VAUX2: BMA250 (g-sensor)
VAUX3: ILITEK touchscreen
VPP: ?
VANA: ?
VUSIM: audio codec
VCXIO: omapdss

Other voltage regulator notes:

VWLAN/VL1271: vmmc5 (omap_hsmmc.4)

hansemro commented 3 years ago

Kernel log without device tree changes (for reference):

[    3.549407] VAUX1_6030: 1000 <--> 3000 mV at 2800 mV, enabled
[    3.553497] VAUX2_6030: 1200 <--> 2800 mV at 1800 mV, disabled
[    3.557281] VAUX3_6030: 1000 <--> 3000 mV at 1200 mV, disabled
[    3.701324] VAUX1_6030: ramp_delay not set
[    3.571166] VDAC: override min_uV, 1 -> 1800000
[    3.571166] VDAC: override max_uV, 2147483647 -> 1800000
[    3.573944] VANA: override min_uV, 1 -> 2100000
[    3.573944] VANA: override max_uV, 2147483647 -> 2100000
[    3.574676] VCXIO: override min_uV, 1 -> 1800000
[    3.576721] VCXIO: override max_uV, 2147483647 -> 1800000
[    3.580139] VUSB: override min_uV, 1 -> 3300000
[    3.580169] VUSB: override max_uV, 2147483647 -> 3300000
[    3.582946] V1V8: override min_uV, 1 -> 1800000
[    3.582977] V1V8: override max_uV, 2147483647 -> 1800000
[    3.584259] V2V1: override min_uV, 1 -> 2100000
[    3.584259] V2V1: override max_uV, 2147483647 -> 2100000

hansemro commented 3 years ago

The dtb appended to Hashcode's 4.4 kernel has the following entries for voltage regulator:

                vaux1: regulator-vaux1 {
                    compatible = "ti,twl6030-vaux1";
                    regulator-min-microvolt = <1000000>;
                    regulator-max-microvolt = <3000000>;
                };

                vaux2: regulator-vaux2 {
                    compatible = "ti,twl6030-vaux2";
                    regulator-min-microvolt = <1200000>;
                    regulator-max-microvolt = <2800000>;
                };

                vaux3: regulator-vaux3 {
                    compatible = "ti,twl6030-vaux3";
                    regulator-min-microvolt = <1000000>;
                    regulator-max-microvolt = <3000000>;
                };

                vmmc: regulator-vmmc {
                    compatible = "ti,twl6030-vmmc";
                    regulator-min-microvolt = <1200000>;
                    regulator-max-microvolt = <3000000>;
                };

                vpp: regulator-vpp {
                    compatible = "ti,twl6030-vpp";
                    regulator-min-microvolt = <1800000>;
                    regulator-max-microvolt = <2500000>;
                };

                vusim: regulator-vusim {
                    compatible = "ti,twl6030-vusim";
                    regulator-min-microvolt = <1200000>;
                    regulator-max-microvolt = <2900000>;
                };

                vdac: regulator-vdac {
                    compatible = "ti,twl6030-vdac";
                };

                vana: regulator-vana {
                    compatible = "ti,twl6030-vana";
                };

                vcxio: regulator-vcxio {
                    compatible = "ti,twl6030-vcxio";
                    regulator-always-on;
                };

                vusb: regulator-vusb {
                    compatible = "ti,twl6030-vusb";
                    linux,phandle = <0x87>;
                    phandle = <0x87>;
                };

                v1v8: regulator-v1v8 {
                    compatible = "ti,twl6030-v1v8";
                    regulator-always-on;
                };

                v2v1: regulator-v2v1 {
                    compatible = "ti,twl6030-v2v1";
                    regulator-always-on;
                };

hansemro / kc1-linux

Specify voltage regulators in device tree #12