On Wed, Sep 29, 2021 at 4:20 PM Rob Clark <robdclark@xxxxxxxxx> wrote: > On Wed, Sep 29, 2021 at 2:51 PM John Stultz <john.stultz@xxxxxxxxxx> wrote: > > On Wed, Sep 29, 2021 at 2:32 PM John Stultz <john.stultz@xxxxxxxxxx> wrote: > > > On Wed, Sep 29, 2021 at 2:27 PM John Stultz <john.stultz@xxxxxxxxxx> wrote: > > > > On Fri, Sep 10, 2021 at 3:12 AM Maxime Ripard <maxime@xxxxxxxxxx> wrote: > > > > > The best practice to avoid those issues is to register its functions only after > > > > > all its dependencies are live. We also shouldn't wait any longer than we should > > > > > to play nice with the other components that are waiting for us, so in our case > > > > > that would mean moving the DSI device registration to the bridge probe. > > > > > > > > > > I also had a look at all the DSI hosts, and it seems that exynos, kirin and msm > > > > > would be affected by this and wouldn't probe anymore after those changes. > > > > > Exynos and kirin seems to be simple enough for a mechanical change (that still > > > > > requires to be tested), but the changes in msm seemed to be far more important > > > > > and I wasn't confortable doing them. > > > > > > > > > > > > Hey Maxime, > > > > Sorry for taking so long to get to this, but now that plumbers is > > > > over I've had a chance to check it out on kirin > > > > > > > > Rob Clark pointed me to his branch with some fixups here: > > > > https://gitlab.freedesktop.org/robclark/msm/-/commits/for-mripard/bridge-rework > > > > > > > > But trying to boot hikey with that, I see the following loop indefinitely: > > > > [ 4.632132] adv7511 2-0039: supply avdd not found, using dummy regulator > > > > [ 4.638961] adv7511 2-0039: supply dvdd not found, using dummy regulator > > > > [ 4.645741] adv7511 2-0039: supply pvdd not found, using dummy regulator > > > > [ 4.652483] adv7511 2-0039: supply a2vdd not found, using dummy regulator > > > > [ 4.659342] adv7511 2-0039: supply v3p3 not found, using dummy regulator > > > > [ 4.666086] adv7511 2-0039: supply v1p2 not found, using dummy regulator > > > > [ 4.681898] adv7511 2-0039: failed to find dsi host > > > > > > I just realized Rob's tree is missing the kirin patch. My apologies! > > > I'll retest and let you know. > > > > Ok, just retested including the kirin patch and unfortunately I'm > > still seeing the same thing. :( > > > > Will dig a bit and let you know when I find more. > > Did you have a chance to test it on anything using drm/msm with DSI > panels? That would at least confirm that I didn't miss anything in > the drm/msm patch to swap the dsi-host vs bridge ordering.. I believe Amit(cc'ed) tried to give it a run on his pocof1, but had some troubles getting it working against a kernel that wasn't suffering other regressions at the moment. Amit/Caleb: Any chance one of you could try again w/ these merged to 5.15-rc3? thanks -john
