| Message ID | 20230323102605.4.I9f47a8a53eacff6229711a827993792ceeb36971@changeid (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | ced32c299e5d6c447ad0b80d7a16b44e0e72e8e0 |
| Headers | show |
| Series | Control Quad SPI pinctrl better on Qualcomm Chromebooks | expand |
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi index 423630c4d02c..1f2e1f701761 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi @@ -512,6 +512,8 @@ pp1800_l13a: ldo13 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; + regulator-always-on; + regulator-boot-on; }; pp1800_prox:
The l13a rail on trogdor devices has always been intended to be always-on on both S0 and S3. Different trogdor variants use l13a in slightly different ways, but the overall theme is that it's a 1.8V rail that the board uses for things that it wants powered in on S0 and S3. On many boards this includes the boot SPI (AKA qspi). For all intents and purposes this patch is actually a no-op since something else in the system seems to already be keeping the rail on all the time (confirmed via multimeter). That "something else" was postulated to be the modem but the rail is on / stays on even without the modem/wifi coming up so it's likely the boot config. In any case, making the fact that this is always-on explicit seems like a good idea. Signed-off-by: Douglas Anderson <dianders@chromium.org> --- arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 2 ++ 1 file changed, 2 insertions(+)