[PATCH 3/5] arm64: dts: qcom: qrb2210-rb1: Drop redundant non-controllable supplies

From: Krzysztof Kozlowski

Date: Mon Feb 23 2026 - 09:55:09 EST


Drop completely redundant non-controllable chain of "regulator-fixed"
supplies, which serve no purpose except growing DTS and kernel boot
time. They represent no added value and because of being completely
transparent for any users of DTS (except the bloat), they should not be
represented in DTS, just like we do not represent every transistor
there.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 45 --------------------------------
1 file changed, 45 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
index 9814ac4896c5..6ac7fe461f4f 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
@@ -109,7 +109,6 @@ vreg_hdmi_out_1p2: regulator-hdmi-out-1p2 {
regulator-name = "VREG_HDMI_OUT_1P2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
- vin-supply = <&vdc_1v2>;
regulator-always-on;
regulator-boot-on;
};
@@ -119,39 +118,6 @@ lt9611_3v3: regulator-lt9611-3v3 {
regulator-name = "LT9611_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
- vin-supply = <&vdc_3v3>;
- regulator-always-on;
- regulator-boot-on;
- };
-
- /* Main barrel jack input */
- vdc_12v: regulator-vdc-12v {
- compatible = "regulator-fixed";
- regulator-name = "DC_12V";
- regulator-min-microvolt = <12000000>;
- regulator-max-microvolt = <12000000>;
- regulator-always-on;
- regulator-boot-on;
- };
-
- /* 1.2V supply stepped down from the barrel jack input */
- vdc_1v2: regulator-vdc-1v2 {
- compatible = "regulator-fixed";
- regulator-name = "VDC_1V2";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
- vin-supply = <&vdc_12v>;
- regulator-always-on;
- regulator-boot-on;
- };
-
- /* 3.3V supply stepped down from the barrel jack input */
- vdc_3v3: regulator-vdc-3v3 {
- compatible = "regulator-fixed";
- regulator-name = "VDC_3V3";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- vin-supply = <&vdc_12v>;
regulator-always-on;
regulator-boot-on;
};
@@ -167,23 +133,12 @@ vdc_5v: regulator-vdc-5v {
regulator-boot-on;
};

- /* "Battery" voltage for the SoM, stepped down from the barrel jack input */
- vdc_vbat_som: regulator-vdc-vbat {
- compatible = "regulator-fixed";
- regulator-name = "VBAT_SOM";
- regulator-min-microvolt = <4200000>;
- regulator-max-microvolt = <4200000>;
- regulator-always-on;
- regulator-boot-on;
- };
-
/* PM2250 charger out, supplied by VBAT */
vph_pwr: regulator-vph-pwr {
compatible = "regulator-fixed";
regulator-name = "vph_pwr";
regulator-min-microvolt = <3700000>;
regulator-max-microvolt = <3700000>;
- vin-supply = <&vdc_vbat_som>;

regulator-always-on;
regulator-boot-on;

--
2.51.0