Re: [PATCH] drm/bridge: dw-mipi-dsi: Move drm_bridge_add into probe

[Jonathan Liu]

Hi Jagan,

On Thu, 24 Jun 2021 at 22:34, Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> Hi Jonathan,
>
> On Fri, Jun 18, 2021 at 6:40 PM Jonathan Liu <net147@xxxxxxxxx> wrote:
> >
> > Hi Jagan,
> >
> > On Wed, 3 Feb 2021 at 09:13, Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> wrote:
> > > @@ -1167,6 +1151,20 @@ __dw_mipi_dsi_probe(struct platform_device *pdev,
> > >         dw_mipi_dsi_debugfs_init(dsi);
> > >         pm_runtime_enable(dev);
> > >
> > > +       ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0,
> > > +                                         &panel, &bridge);
> > > +       if (ret)
> > > +               return ERR_PTR(ret);
> >
> > On RK3399 if the error is EPROBE_DEFER, __dw_mipi_dsi_probe can be
> > called again and result in the following errors:
> > [    0.717589] debugfs: Directory 'ff960000.mipi' with parent '/'
> > already present!
> > [    0.717601] dw-mipi-dsi-rockchip ff960000.mipi: failed to create debugfs root
> > [    0.717606] dw-mipi-dsi-rockchip ff960000.mipi: Unbalanced pm_runtime_enable!
>
> Is this when you test bridge on rk3399 or panel?

MIPI-DSI to LVDS bridge.

Regards,
Jonathan