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    Subject[PATCH 5.19 0226/1157] arm64: dts: qcom: sdm845-akatsuki: Round down l22a regulator voltage
    Date
    From: Marijn Suijten <marijn.suijten@somainline.org>

    [ Upstream commit 4148a9eeb15152865d60b0913d96beb7ca166f9a ]

    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/20220507153627.1478268-1-marijn.suijten@somainline.org/

    Fixes: 30a7f99befc6 ("arm64: dts: qcom: Add support for SONY Xperia XZ2 / XZ2C / XZ3 (Tama platform)")
    Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
    Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
    Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
    Link: https://lore.kernel.org/r/20220620211212.269956-1-marijn.suijten@somainline.org
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    .../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 8a0d94e7f598..2f5e12deaada 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
    @@ -19,8 +19,9 @@ &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 {
    --
    2.35.1


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