[PATCH v8 5/9] drm/bridge: aux-hpd: let drivers pass IRQ_HPD events

Dmitry Baryshkov dmitry.baryshkov at oss.qualcomm.com
Thu Nov 5 05:35:03 PST 2026


On Thu, Nov 05, 2026 at 12:47:24PM +0100, Luca Ceresoli wrote:
> > The DisplayPort standard defines a special kind of HPD events called
> > IRQ_HPD. These events are used to notify DP Source about the events on
> > the Sink side.
> >
> > Let users of aux-hpd, the UCSI and PMIC GLINK drivers pass the IRQ_HPD
> > events to the DisplayPort drivers.
> >
> > The drm_aux_hpd_bridge_notify() is kept to ease merging of the series,
> > preventing extra cross-tree merges. It will be removed once all
> > drivers are converted. The drm_bridge_hpd_notify() function is kept for
> > the drivers which only care about the connector status and will always
> > pass DRM_CONNECTOR_NO_EXTRA_STATUS as the extra status.
> 
> Do you have a plan to later convert all drm_bridge_hpd_notify() to the new
> _extra() variant, then remove drm_bridge_hpd_notify() and eventually rename
> drm_bridge_hpd_notify_extra() to drm_bridge_hpd_notify()?

I'd say, only if they require the extra status. Otherwise, it's just a
noise which is perfectly handled by the wrapper.

> 
> Reviewed-by: Luca Ceresoli <luca.ceresoli at bootlin.com>

-- 
With best wishes
Dmitry



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