Hi Marek, On Fri, Sep 17, 2021 at 02:35:05PM +0200, Marek Szyprowski wrote: > Hi, > > On 13.09.2021 12:30, Andrzej Hajda wrote: > > W dniu 10.09.2021 o 12:12, Maxime Ripard pisze: > >> Without proper care and an agreement between how DSI hosts and devices > >> drivers register their MIPI-DSI entities and potential components, we can > >> end up in a situation where the drivers can never probe. > >> > >> Most drivers were taking evasive maneuvers to try to workaround this, > >> but not all of them were following the same conventions, resulting in > >> various incompatibilities between DSI hosts and devices. > >> > >> Now that we have a sequence agreed upon and documented, let's convert > >> exynos to it. > >> > >> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx> > > This patch should be dropped, as it will probably break the driver. > > > > Exynos is already compatible with the pattern > > register-bus-then-get-sink, but it adds/removes panel/bridge > > dynamically, so it creates drm_device without waiting for downstream sink. > > Right, this patch breaks Exynos DSI driver operation. Without it, the > whole series works fine on all Exynos based test boards. Thanks for testing. Did you have any board using one of those bridges in your test sample? Thanks! Maxime
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