Alright, I think the best way forward is to remove the polled HPD support.
Don't forget to update flags and function pointers.
With that, feel free to add my r-b.
Reviewed-by: Robert Foss
> > Are you saying that pin 63 never is high, or that an irq/isr routine
> > isn't getting executed?
> >
> > > When reading the value of the HPD pin, I always get 1 (and no
> > > transition occurs when plugging / unplugging a cable).
> > > The HPD IRQ is done on the HDMI connector driver [5].
> >
Le mar. 23 mars 2021 à 15:16, Adrien Grassein
a écrit :
>
> Le mar. 23 mars 2021 à 15:07, Robert Foss a écrit :
> >
> > > > > >
> > > > > > > +static enum drm_connector_status
> > > > > > > lt8912_check_cable_status(struct lt8912 *lt)
> > > > > > > +{
> > > > > > > + int ret;
> > > > > >
Le mar. 23 mars 2021 à 15:07, Robert Foss a écrit :
>
> > > > >
> > > > > > +static enum drm_connector_status lt8912_check_cable_status(struct
> > > > > > lt8912 *lt)
> > > > > > +{
> > > > > > + int ret;
> > > > > > + unsigned int reg_val;
> > > > > > +
> > > > > > + ret =
> > > >
> > > > > +static enum drm_connector_status lt8912_check_cable_status(struct
> > > > > lt8912 *lt)
> > > > > +{
> > > > > + int ret;
> > > > > + unsigned int reg_val;
> > > > > +
> > > > > + ret = regmap_read(lt->regmap[I2C_MAIN], 0xC1, _val);
> > > > > + if (ret)
Le mar. 23 mars 2021 à 11:42, Robert Foss a écrit :
>
> On Tue, 23 Mar 2021 at 11:01, Adrien Grassein
> wrote:
> >
> > Hey Robert,
> >
> > Thanks for the update.
> >
> > Le mar. 23 mars 2021 à 10:10, Robert Foss a écrit :
> > >
> > > Hey Adrien,
> > >
> > > Sorry about the slow reply, but I
On Tue, 23 Mar 2021 at 11:01, Adrien Grassein wrote:
>
> Hey Robert,
>
> Thanks for the update.
>
> Le mar. 23 mars 2021 à 10:10, Robert Foss a écrit :
> >
> > Hey Adrien,
> >
> > Sorry about the slow reply, but I just received the documentation from
> > the vendor. So let's dig in to the HPD
Hey Robert,
Thanks for the update.
Le mar. 23 mars 2021 à 10:10, Robert Foss a écrit :
>
> Hey Adrien,
>
> Sorry about the slow reply, but I just received the documentation from
> the vendor. So let's dig in to the HPD issue.
No problem :)
>
> > +static enum drm_connector_status
Hey Adrien,
Sorry about the slow reply, but I just received the documentation from
the vendor. So let's dig in to the HPD issue.
> +static enum drm_connector_status lt8912_check_cable_status(struct lt8912 *lt)
> +{
> + int ret;
> + unsigned int reg_val;
> +
> + ret =
Lontium LT8912B is a DSI to HDMI bridge.
Signed-off-by: Adrien Grassein
Reported-by: kernel test robot
---
MAINTAINERS | 1 +
drivers/gpu/drm/bridge/Kconfig | 14 +
drivers/gpu/drm/bridge/Makefile | 1 +
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