On Thu, Sep 30, 2021 at 10:07:57AM +0200, Thomas Perrot wrote: > Hello, > [...] > I made experimentation on a Sierra EM9190 (SDX55) engineering sample, > using a old development firmware. > > So, I agree that setting the same timeout of 24000ms for all modems, is > not necessarily relevant. > However, the current default value seems too low, in view of timeouts > used on vendor-branded, then using a higher value seems relevant. > > Moreover, Sierra EM919x modems use a custom controller configuration, > we are currently working on it. As our tests not being sufficiently > conclusive, so we have not yet submitted. > Okay. Then please add a separate config for this device when you have it. It makes more sense to have the longer timeout only for devices that need it. Thanks, Mani > Best regards, > Thomas > > > > > > > It was derived from testing I believe. > > > > Following your reasoning above, shouldn't this 24000ms timeout be > > applied only to the Sierra Wireless EM91xx devices (which may have > > custom firmware bits delaying the initialization a bit longer), and > > not to the generic SDX24, SDX55 and SDX65? > > > > If I'm not mistaken, Thomas is testing with a custom mhi_pci_generic > > entry for the EM91xx; as in > > https://forum.sierrawireless.com/t/sierra-wireless-airprime-em919x-pcie-support/24927 > > . > > I'm also playing with that same entry on my own setup, but have other > > problems of my own :) > > > > > > -- > > Aleksander > > https://aleksander.es > > -- > Thomas Perrot, Bootlin > Embedded Linux and kernel engineering > https://bootlin.com >
