Re: [PATCH] testing! arm64: dts: qcom: decrease WiFi antenna regulator minimum to 3.0V
From: Konrad Dybcio
Date: Thu Feb 05 2026 - 04:11:40 EST
On 2/4/26 6:03 PM, David Heidelberg via B4 Relay wrote:
> From: David Heidelberg <david@xxxxxxx>
>
> Downstream defines minimal voltage as 3.0 V, while when OnePlus 6 was
> introduced to Linux mainline, the value was fixed to maximum 3.3V.
>
> Signed-off-by: David Heidelberg <david@xxxxxxx>
> ---
> Tested for ~ 1 month. Seems to work well, no visible issues anywhere.
> ---
> arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
> index 5b121ea5520f5..e950db41ce25a 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
> @@ -307,7 +307,7 @@ vreg_l20a_2p95: ldo20 {
> };
>
> vreg_l23a_3p3: ldo23 {
> - regulator-min-microvolt = <3300000>;
> + regulator-min-microvolt = <3000000>;
> regulator-max-microvolt = <3312000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> };
> @@ -320,7 +320,7 @@ vreg_l24a_3p075: ldo24 {
> };
>
> vreg_l25a_3p3: ldo25 {
> - regulator-min-microvolt = <3300000>;
> + regulator-min-microvolt = <3000000>;
> regulator-max-microvolt = <3312000>;
A datasheet tells me this is out of spec for this wireless chip
Konrad