On 20.06.2022 23:12, Marijn Suijten wrote:
> 2700000 is not a multiple of pmic4_pldo's step size of 8000 (with base
> voltage 1664000), resulting in pm8998-rpmh-regulators not probing. Just
> as we did with MSM8998's Sony Yoshino Poplar [1], round the voltages
> down to err on the cautious side and leave a comment in place to
> document this discrepancy wrt downstream sources.
>
> [1]: https://lore.kernel.org/linux-arm-msm/[email protected]/
>
> Fixes: 30a7f99befc6 ("arm64: dts: qcom: Add support for SONY Xperia XZ2 / XZ2C / XZ3 (Tama platform)")
> Signed-off-by: Marijn Suijten <[email protected]>
> ---
Reviewed-by: Konrad Dybcio <[email protected]>
Konrad
> .../arm64/boot/dts/qcom/sdm845-sony-xperia-tama-akatsuki.dts | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama-akatsuki.dts b/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama-akatsuki.dts
> index 36ff1178b705..3839850cf7dd 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama-akatsuki.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama-akatsuki.dts
> @@ -22,8 +22,9 @@ &vreg_l14a_1p8 {
> };
>
> &vreg_l22a_2p8 {
> - regulator-min-microvolt = <2700000>;
> - regulator-max-microvolt = <2700000>;
> + /* Note: Round-down from 2700000 to be a multiple of PLDO step-size 8000 */
> + regulator-min-microvolt = <2696000>;
> + regulator-max-microvolt = <2696000>;
> };
>
> &vreg_l28a_2p8 {