On Fri, Mar 25, 2016 at 07:22:45PM +0200, Ivaylo Dimitrov wrote: > On Nokia N900 regulators are left in the mode last set by the bootloader or > by the stock kernel, depends on whether it is power-on or reboot from stock > kernel to mainline. That leads to problem with devices connected to vmmc2 > regulator - when the device is rebooted from stock kernel vmmc2 is left in > "sleep" mode (REGULATOR_STATUS_STANDBY in terms of regulator framework) and > as noone in mainline kernel switches vmmc2 regulator to normal > (REGULATOR_STATUS_NORMAL) mode, devices supplied by it does not get enough > power to operate normally. Then there is a constraint that the regulators must be in normal mode and this needs to be expressed in the machine constraints.
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