Add the PMIC regulator suspend configuration to Arndale Octa board to reduce power usage during suspend and keep necessary regulators on. The configuration is based on vendor (Insignal) reference kernel.
This is purely for hardware description because board does not support Suspend to RAM and the S2MPS11 driver does not support "regulator-on-in-suspend" property. Signed-off-by: Krzysztof Kozlowski <[email protected]> --- arch/arm/boot/dts/exynos5420-arndale-octa.dts | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts index dc9162a17475..4463af8fa79d 100644 --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts @@ -451,6 +451,10 @@ regulator-name = "PVDD_APIO_MMCOFF_2V8"; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <2800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; ldo14_reg: LDO14 { @@ -464,12 +468,20 @@ regulator-name = "PVDD_PERI_2V8"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo16_reg: LDO16 { regulator-name = "PVDD_PERI_3V3"; regulator-min-microvolt = <2200000>; regulator-max-microvolt = <2200000>; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo17_reg: LDO17 { @@ -489,6 +501,10 @@ regulator-name = "PVDD_TFLASH_2V8"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; ldo20_reg: LDO20 { @@ -515,12 +531,20 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1100000>; regulator-always-on; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo24_reg: LDO24 { regulator-name = "PVDD_CAM1_AVDD_2V8"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo25_reg: LDO25 { @@ -540,6 +564,10 @@ regulator-name = "PVDD_G3DS_1V0"; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1100000>; + + regulator-state-mem { + regulator-on-in-suspend; + }; }; ldo28_reg: LDO28 { @@ -617,6 +645,10 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1300000>; regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck2_reg: BUCK2 { @@ -624,6 +656,10 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1500000>; regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck3_reg: BUCK3 { @@ -631,12 +667,20 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck4_reg: BUCK4 { regulator-name = "PVDD_G3D_1V0"; regulator-min-microvolt = <800000>; regulator-max-microvolt = <1400000>; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck5_reg: BUCK5 { @@ -651,6 +695,10 @@ regulator-min-microvolt = <800000>; regulator-max-microvolt = <1500000>; regulator-always-on; + + regulator-state-mem { + regulator-off-in-suspend; + }; }; buck7_reg: BUCK7 { -- 2.17.1
