forked from ~ljy/RK356X_SDK_RELEASE
kernel/Documentation/ABI/testing/sysfs-driver-bd9571mwv-regulator
.. .. @@ -6,11 +6,13 @@ 6 6 if DDR power rails will be kept powered during system suspend. 7 7 ("on"/"1" = enabled, "off"/"0" = disabled). 8 8 Two types of power switches (or control signals) can be used: 9 9 10 A. With a momentary power switch (or pulse signal), DDR 10 11 Backup Mode is enabled by default when available, as the 11 12 PMIC will be configured only during system suspend. 12 13 B. With a toggle power switch (or level signal), the 13 14 following steps must be followed exactly: 15 14 16 1. Configure PMIC for backup mode, to change the role of 15 17 the accessory power switch from a power switch to a 16 18 wake-up switch, .. .. @@ -20,8 +22,10 @@ 20 22 3. Suspend system, 21 23 4. Switch accessory power switch on, to resume the 22 24 system. 25 23 26 DDR Backup Mode must be explicitly enabled by the user, 24 27 to invoke step 1. 28 25 29 See also Documentation/devicetree/bindings/mfd/bd9571mwv.txt. 26 30 Users: User space applications for embedded boards equipped with a 27 31 BD9571MWV PMIC.
