The regulators would set different state/mode according to the kind of suspend state. So regulation_constraints structure has already regulator suspend state filed. This patch parse regulator suspend state from devicetree file. For example: ldoX_reg: LDOx { regulator-name = "VAP_XXX_1.2V"; regulator-min-microvolt = <1200000>; regulator-max-microvolt = <1200000>; regulator-always-on; regulator-initial-state = <3>; /* PM_SUSPEND_MEM */ regulator-state-standby { regulator-volt = <1200000>; regulator-mode = <0x2>; /* REGULATOR_MODE_NORMAL */ }; regulator-state-mem { regulator-volt = <1200000>; regulator-mode = <0x8>; /* REGULATOR_MODE_STANDBY */ regulator-off-in-suspend; }; regulator-state-disk { regulator-volt = <1200000>; regulator-mode = <0x2>; /* REGULATOR_MODE_NORMAL */ regulator-on-in-suspend; }; }; Chanwoo Choi (2): regulator: of: Add support for parsing regulator_state for suspend state dt-bindings: regulator: Add regulator suspend state for PM state .../devicetree/bindings/regulator/regulator.txt | 12 +++++ drivers/regulator/of_regulator.c | 61 +++++++++++++++++++++- 2 files changed, 71 insertions(+), 2 deletions(-) -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html