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arm64: dts: qcom: sdm636-xiaomi-tulip: enable fan53526 buck regulator for LDDR4 #45

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arm64: dts: qcom: sdm636-xiaomi-tulip: enable fan53526 buck regulator for LDDR4 #45

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f3d1059
regulator: fan53555: add support for fan53526 chipid 8 rev 1
M0Rf30 Nov 9, 2024
cde75bc
arm64: dts: qcom: sdm636-xiaomi-tulip: enable fan53526 buck regulator…
M0Rf30 Nov 9, 2024
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10 changes: 10 additions & 0 deletions arch/arm64/boot/dts/qcom/sdm636-xiaomi-tulip.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -159,6 +159,16 @@

&blsp_i2c2 {
status = "okay";

regulator@60 {
compatible = "fcs,fan53526";
reg = <0x60>;
regulator-always-on;
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1100000>;
vin-supply = <&vph_pwr>;
fcs,suspend-voltage-selector = <1>;
};
};

&blsp_i2c6 {
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15 changes: 15 additions & 0 deletions drivers/regulator/fan53555.c
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Original file line number Diff line number Diff line change
Expand Up @@ -76,9 +76,11 @@ enum fan53555_vendor {

enum {
FAN53526_CHIP_ID_01 = 1,
FAN53526_CHIP_ID_08 = 8,
};

enum {
FAN53526_CHIP_REV_01 = 1,
FAN53526_CHIP_REV_08 = 8,
};

Expand Down Expand Up @@ -272,6 +274,19 @@ static int fan53526_voltages_setup_fairchild(struct fan53555_device_info *di)
return -EINVAL;
}
break;
case FAN53526_CHIP_ID_08:
switch (di->chip_rev) {
case FAN53526_CHIP_REV_01:
di->vsel_min = 600000;
di->vsel_step = 6250;
break;
default:
dev_err(di->dev,
"Chip ID %d with rev %d not supported!\n",
di->chip_id, di->chip_rev);
return -EINVAL;
}
break;
default:
dev_err(di->dev,
"Chip ID %d not supported!\n", di->chip_id);
Expand Down