On Thu, Jul 21, 2022 at 12:31:41PM +0200, Johan Hovold wrote: If you're copying someone into a thread that's not obviously relevant for them it's good practice to put a note about it at the top of the mail to reduce the chances that it just gets deleted unread - people get copies of all sorts of random stuff for not great reasons (like getting pulled in by checkpatch due to once having done a cleanup) and are often quicky to delete things. > This series breaks USB and PCIe for some SC8280XP and SA540P machines > where the DP PHY regulators are shared with other PHYs whose drivers do > not request a load. > Specifically, the hard-coded vdda-phy load of 21.8 mA added by this > series, causes several RPMh regulators to now be put in low-power mode. > I found Doug's suggestion to handle situations like this in regulator > core: > > https://lore.kernel.org/all/20180814170617.100087-1-dianders@xxxxxxxxxxxx/ > but since that was rejected, how do we deal with this generally? > In the above thread Doug mentioned adding support for load requests to > further drivers and Bjorn mentioned working around it by adding > regulator-system-load properties to DT. > It seems quite likely that changes like this one affects other systems > too, and the effects may be hard to debug. So a more general solution > than playing whack-a-mole using DT would be good to have. You could add a way to specify constant base loads in DT on either a per regulator or per consumer basis.
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