On 7/11/25 2:58 PM, Bryan O'Donoghue wrote:
> Add the PM8010 PMIC providing the following voltage rails:
>
> vreg_l1m_r @ 1v2 IR sensor
> vreg_l2m_r @ 1v2 RGB sensor
> vreg_l3m_r @ 1v8 IR sensor
> vreg_l4m_r @ 1v8 RGB sensor
> vreg_l5m_r @ 2v8 IR sensor
> vreg_l7m_r @ 2v8 RGB sensor
>
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> ---
> .../dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi | 59 ++++++++++++++++++++++
> 1 file changed, 59 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
> index e19daf0f41f1f081e4b0c04be71e37f6ef492b6d..c9215c1a37cf4e7bad1512f52afdfc18ea616127 100644
> --- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
> +++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
> @@ -580,6 +580,13 @@ vreg_l6b_1p8: ldo6 {
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> };
>
> + vreg_l7b_2p8: ldo7 {
> + regulator-name = "vreg_l7b_2p8";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> + };
> +
> vreg_l8b_3p0: ldo8 {
> regulator-name = "vreg_l8b_3p0";
> regulator-min-microvolt = <3072000>;
> @@ -823,6 +830,58 @@ vreg_l3j_0p8: ldo3 {
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> };
> };
> +
> + regulators-8 {
> + compatible = "qcom,pm8010-rpmh-regulators";
> + qcom,pmic-id = "m";
> +
> + vdd-l1-l2-supply = <&vreg_s5j_1p2>;
> + vdd-l3-l4-supply = <&vreg_s4c_1p8>;
> + vdd-l7-supply = <&vreg_bob1>;
> +
> + vreg_l1m_1p2: ldo1 {
> + regulator-name = "vreg_l1m_1p2";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1260000>;
> + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> + };
> +
> + vreg_l2m_1p2: ldo2 {
> + regulator-name = "vreg_l2m_1p2";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1260000>;
> + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> + };
> +
> + vreg_l3m_1p8: ldo3 {
> + regulator-name = "vreg_l3m_1p8";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1900000>;
> + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> + };
> +
> + vreg_l4m_1p8: ldo4 {
> + regulator-name = "vreg_l4m_1p8";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1900000>;
> + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> + };
> +
> + vreg_l5m_2p8: ldo5 {
> + regulator-name = "vreg_l5m_2p9";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <3072000>;
> + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> + };
> +
> + vreg_l7m_2p8: ldo7 {
> + regulator-name = "vreg_l7m_2p9";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <3072000>;
> + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> + };
Have you confirmed all these voltages on both T14s and yoga against
schematics or similar?
These vregs are widely configurable, so the reference values may
not be what the hardware expects..
Konrad