On Thu 19 Mar 11:19 PDT 2020, Rob Clark wrote:
> On Wed, Mar 18, 2020 at 9:39 PM Bjorn Andersson
> <bjorn.andersson@xxxxxxxxxx> wrote:
> >
> > With the introduction of '3ef2f119bd3e ("drm/msm: Use
> > drm_attach_bridge() to attach a bridge to an encoder")' the HDMI bridge
> > is attached both in msm_hdmi_bridge_init() and later in
> > msm_hdmi_modeset_init().
> >
> > The second attempt fails as the bridge is already attached to the
> > encoder and the whole process is aborted.
> >
> > So instead make msm_hdmi_bridge_init() just initialize the hdmi_bridge
> > object and let msm_hdmi_modeset_init() attach it later.
> >
> > Fixes: 3ef2f119bd3e ("drm/msm: Use drm_attach_bridge() to attach a bridge to an encoder")
> > Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
>
> Thanks, I think this should also be solved by:
>
> https://patchwork.freedesktop.org/patch/357331/?series=74611&rev=1
Yes, didn't find that when looking yesterday. T-b and R-b.
Thanks,
Bjorn
>
> BR,
> -R
>
> > ---
> > drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 19 +++----------------
> > 1 file changed, 3 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
> > index 6e380db9287b..0e103ee1b730 100644
> > --- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
> > +++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
> > @@ -271,31 +271,18 @@ static const struct drm_bridge_funcs msm_hdmi_bridge_funcs = {
> > /* initialize bridge */
> > struct drm_bridge *msm_hdmi_bridge_init(struct hdmi *hdmi)
> > {
> > - struct drm_bridge *bridge = NULL;
> > struct hdmi_bridge *hdmi_bridge;
> > - int ret;
> > + struct drm_bridge *bridge;
> >
> > hdmi_bridge = devm_kzalloc(hdmi->dev->dev,
> > sizeof(*hdmi_bridge), GFP_KERNEL);
> > - if (!hdmi_bridge) {
> > - ret = -ENOMEM;
> > - goto fail;
> > - }
> > + if (!hdmi_bridge)
> > + return ERR_PTR(-ENOMEM);
> >
> > hdmi_bridge->hdmi = hdmi;
> >
> > bridge = &hdmi_bridge->base;
> > bridge->funcs = &msm_hdmi_bridge_funcs;
> >
> > - ret = drm_bridge_attach(hdmi->encoder, bridge, NULL, 0);
> > - if (ret)
> > - goto fail;
> > -
> > return bridge;
> > -
> > -fail:
> > - if (bridge)
> > - msm_hdmi_bridge_destroy(bridge);
> > -
> > - return ERR_PTR(ret);
> > }
> > --
> > 2.24.0
> >
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
