On Thu, Aug 25, 2022 at 09:42:03AM -0700, Douglas Anderson wrote:
> This board uses RPMH, specifies "regulator-allow-set-load" for LDOs,
> but doesn't specify any modes with "regulator-allowed-modes".
>
> Prior to commit efb0cb50c427 ("regulator: qcom-rpmh: Implement
> get_optimum_mode(), not set_load()") the above meant that we were able
> to set either LPM or HPM mode. After that commit (and fixes [1]) we'll
> be stuck at the initial mode. Discussion of this has resulted in the
> decision that the old dts files were wrong and should be fixed to
> fully restore old functionality.
>
> Let's re-enable the old functionality by fixing the dts.
>
> [1] https://lore.kernel.org/r/20220824142229.RFT.v2.2.I6f77860e5cd98bf5c67208fa9edda4a08847c304@changeid
>
> Fixes: d0a6ce59ea4e ("arm64: dts: qcom: sm8150: Add support for SONY Xperia 1 / 5 (Kumano platform)")
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Reviewed-by: Andrew Halaney <ahalaney@xxxxxxxxxx>
> ---
>
> arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi b/arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi
> index 014fe3a31548..fb6e5a140c9f 100644
> --- a/arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8150-sony-xperia-kumano.dtsi
> @@ -348,6 +348,9 @@ vreg_l6c_2p9: ldo6 {
> regulator-max-microvolt = <2960000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l7c_3p0: ldo7 {
> @@ -367,6 +370,9 @@ vreg_l9c_2p9: ldo9 {
> regulator-max-microvolt = <2960000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l10c_3p3: ldo10 {
> --
> 2.37.2.672.g94769d06f0-goog
>
