> Dealing with the new API sounds pretty cumbersome, as this would mean that > we need to change everything from the MFD / regmap level down to the i2c > platform drivers (the poweroff handler uses regmap to write to the PMIC.) I Yes, that's the problem. That's where letting the I2C core decide will save some hazzle. Some kind of whitelist for such transfer would be nice, though, to still find buggy drivers. I haven't looked into that yet if there is some information we can use (instead of passing yet another flag around). > guess we could use a shortcut from the poweroff handler to write directly to > the i2c bus though. It is not all about poweroff / reset. IIRC someone needed the irqless transfer very early, too. My personal use case would be "reset", too. There are some R-Car Gen2 boards which we need to reset via PMIC because of HW issues.
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