Hi Krystoff, On Tue, 1 Oct 2024 08:43:23 +0200 Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote: > On Mon, Sep 30, 2024 at 02:15:41PM +0200, Herve Codina wrote: > > In the LAN966x PCI device use case, syscon cannot be used as syscon > > devices do not support removal [1]. A syscon device is a core "system" > > device and not a device available in some addon boards and so, it is not > > supposed to be removed. > > That's not accurate. syscon is our own, Linux term which means also > anything exposing set of registers. > > If you need to unload syscons, implement it. syscon is the same resource > as all others so should be handled same way. > > > > > In order to remove the syscon device usage, allow the reset controller > > to have a direct access to the address range it needs to use. > > So you map same address twice? That's not good, because you have no > locking over concurrent register accesses. > I will remove this patch and keep using the syscon node in the next iteration. Best regards, Hervé
