On 12/03/2025 12:10, Christopher Obbard wrote: > Hi Krzysztof, > > On Wed, 12 Mar 2025 at 09:56, Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote: >> >> On 11/03/2025 20:15, Christopher Obbard wrote: >>> Hi Dmitry, >>> >>> On Tue, 11 Mar 2025 at 19:58, Dmitry Baryshkov <lumag@xxxxxxxxxx> wrote: >>>> >>>> On Tue, Mar 11, 2025 at 07:10:06PM +0100, Christopher Obbard wrote: >>>>> I sent this patch to start the discussion, some things I found: >>>>> >>>>> 1) Some interconnects are missing from arm defconfig. Should they be =y too ? >>>> >>>> No, unless those are required for the UART console. >>> >>> OK, that makes sense. FWIW the cryptic (to me, at least) commit log on >>> https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6eee808134ecf1c1093ff1ddfc056dc5e469d0c3 >>> made me think that the interconnects should be built-in on all devices. >>> >>> Of course, the real problem here is RB3gen2 not actually finding the >>> UFS/eMMC device due to no interconnect driver. >>> Until now, I have been building that into the kernel. I will >>> investigate instead shoving into the initrd (in both debian and >>> fedora) which should solve my issue and render this patchset useless. >> >> For Qualcomm platforms you are expected to always have initramfs, thus >> you will have the modules for UFS/eMMC mounts. I don't understand the >> problem which you were trying to solve. >> >> The interconnects were built in *only* because of need for serial >> console. Only. > > Thanks for confirming. It is all clear now. > > Consider this patch dropped from my side. > > For reference, I am working on updating initramfs generation tools in > Debian/Fedora to include the required interconnect modules. Currently > the interconnect drivers are built as modules in these distros, but > are not included in the initrd. That is where my confusion initially > stemmed from. Sure. This defconfig is anyway for us - developers, not for the distros to use directly. Distros have much bigger configs and use almost everything as module. Best regards, Krzysztof
