[PATCH v1 0/7] drm/bridge_connector: perform HPD enablement automatically

[Dmitry Baryshkov]

On Mon, 12 Sept 2022 at 11:51, Tomi Valkeinen
<tomi.valkeinen at ideasonboard.com> wrote:
>
> Hi,
>
> On 29/04/2022 21:51, Dmitry Baryshkov wrote:
> >  From all the drivers using drm_bridge_connector only iMX/dcss and OMAP
> > DRM driver do a proper work of calling
> > drm_bridge_connector_en/disable_hpd() in right places. Rather than
> > teaching each and every driver how to properly handle
> > drm_bridge_connector's HPD, make that automatic.
> >
> > Add two additional drm_connector helper funcs: enable_hpd() and
> > disable_hpd(). Make drm_kms_helper_poll_* functions call them (as this
> > is the time where the drm_bridge_connector's functions are called by the
> > drivers too).
>
> 09077bc3116581f4d1cb961ec359ad56586e370b ("drm/bridge_connector: enable
> HPD by default if supported") was merged in March, but I think that one
> is  bit broken
> (https://lore.kernel.org/all/a28a4858-c66a-6737-a9fc-502f591ba2d5@ideasonboard.com/).
> To get omapdrm work without WARNs we could just revert that commit, but
> I think this series makes things cleaner.
>
> There's one small problem with this series: in drm_bridge_connector.c
> the drm_bridge_hpd_disable() function is called from
> _drm_bridge_connector_disable_hpd() and from
> drm_bridge_connector_destroy(). This causes two hpd_disable calls when
> removing the driver modules. I think the call from
> drm_bridge_connector_destroy() could be removed, as
> _drm_bridge_connector_disable_hpd() should always get called when
> removing the drivers.
>
> Dmitry, are you still interested in this series? Can you rebase on top
> of current upstream, and revert 09077bc3116581f4d1cb961ec359ad56586e370b
> first?

Hi, I've been a bit reluctant to continue this work after the
mentioned commit got merged. However of course I can update & resend
this patch series.

-- 
With best wishes
Dmitry