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Message-ID: <CAF6AEGu2CyQA6XZ=r4c9Z0tiiPUxyhTf0OAu3v6w0oswJ3567w@mail.gmail.com> Date: Wed, 13 Oct 2021 17:16:58 -0700 From: Rob Clark <robdclark@...il.com> To: Maxime Ripard <maxime@...no.tech> Cc: Caleb Connolly <caleb.connolly@...aro.org>, Amit Pundir <amit.pundir@...aro.org>, John Stultz <john.stultz@...aro.org>, Andrzej Hajda <a.hajda@...sung.com>, Sam Ravnborg <sam@...nborg.org>, Daniel Vetter <daniel.vetter@...el.com>, David Airlie <airlied@...ux.ie>, Jonas Karlman <jonas@...boo.se>, Laurent Pinchart <Laurent.pinchart@...asonboard.com>, Thierry Reding <thierry.reding@...il.com>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Thomas Zimmermann <tzimmermann@...e.de>, Neil Armstrong <narmstrong@...libre.com>, Robert Foss <robert.foss@...aro.org>, Jernej Skrabec <jernej.skrabec@...il.com>, Sean Paul <sean@...rly.run>, "open list:DRM DRIVER FOR MSM ADRENO GPU" <freedreno@...ts.freedesktop.org>, Kyungmin Park <kyungmin.park@...sung.com>, lkml <linux-kernel@...r.kernel.org>, Xinliang Liu <xinliang.liu@...aro.org>, Seung-Woo Kim <sw0312.kim@...sung.com>, Tian Tao <tiantao6@...ilicon.com>, Inki Dae <inki.dae@...sung.com>, Linux Samsung SOC <linux-samsung-soc@...r.kernel.org>, linux-arm-msm <linux-arm-msm@...r.kernel.org>, dri-devel <dri-devel@...ts.freedesktop.org>, Chen Feng <puck.chen@...ilicon.com>, Xinwei Kong <kong.kongxinwei@...ilicon.com>, Joonyoung Shim <jy0922.shim@...sung.com> Subject: Re: [Freedreno] [PATCH v4 00/24] drm/bridge: Make panel and bridge probe order consistent On Wed, Oct 13, 2021 at 7:16 AM Maxime Ripard <maxime@...no.tech> wrote: > > Hi Caleb, > > On Thu, Sep 30, 2021 at 09:20:52PM +0100, Caleb Connolly wrote: > > Hi, > > > > On 30/09/2021 20:49, Amit Pundir wrote: > > > On Thu, 30 Sept 2021 at 04:50, Rob Clark <robdclark@...il.com> wrote: > > > > > > > > On Wed, Sep 29, 2021 at 2:51 PM John Stultz <john.stultz@...aro.org> wrote: > > > > > > > > > > On Wed, Sep 29, 2021 at 2:32 PM John Stultz <john.stultz@...aro.org> wrote: > > > > > > On Wed, Sep 29, 2021 at 2:27 PM John Stultz <john.stultz@...aro.org> wrote: > > > > > > > On Fri, Sep 10, 2021 at 3:12 AM Maxime Ripard <maxime@...no.tech> 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.. > > > > > > Hi, smoke tested > > > https://gitlab.freedesktop.org/robclark/msm/-/commits/for-mripard/bridge-rework > > > on Pocophone F1 (sdm845 / A630) with v5.15-rc3. I see no obvious > > > regressions in my limited testing so far including video (youtube) > > > playback. > > Tested on the OnePlus 6 too booting AOSP, works fine. This *fixes* > > FBDEV_EMULATION (so we can get a working framebuffer console) which was > > otherwise broken on 5.15. > > > > However it spits out some warnings during boot: https://p.calebs.dev/gucysowyna.yaml > > Thanks for testing. It looks like the runtime_pm ordering between the > msm devices changed a bit with the conversion Rob did. > > Rob, do you know what could be going on? > Not entirely sure.. I didn't see that first splat, but maybe I was missing some debug config? (The 2nd one is kind of "normal", I think related to bootloader leaving the display on) BR, -R
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