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SubjectRE: [PATCH v3 5/8] drm: bridge: thc63: Do not report input bus mode through bridge timings
Date
Hi Laurent,

Thank you for your feedback!

> From: linux-kernel-owner@vger.kernel.org <linux-kernel-owner@vger.kernel.org> On Behalf Of Laurent Pinchart
> Sent: 07 November 2019 19:52
> Subject: Re: [PATCH v3 5/8] drm: bridge: thc63: Do not report input bus mode through bridge timings
>
> Hi Fabrizio,
>
> Thank you for the patch.
>
> On Wed, Aug 28, 2019 at 07:36:39PM +0100, Fabrizio Castro wrote:
> > No need to report the input bus mode through bridge timings
> > anymore, that's now done through the DT, as specified by the
> > dt-bindings.
>
> Doesn't this break backward compatibility with older DT, as mentioned in
> the review of 4/8 ?
>

I'll drop this patch in v4

Thanks,
Fab

> > Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
> >
> > ---
> > v2->v3:
> > * new patch
> > ---
> > drivers/gpu/drm/bridge/thc63lvd1024.c | 9 ++++-----
> > include/drm/drm_bridge.h | 8 --------
> > 2 files changed, 4 insertions(+), 13 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/bridge/thc63lvd1024.c b/drivers/gpu/drm/bridge/thc63lvd1024.c
> > index 3d74129b..730f682 100644
> > --- a/drivers/gpu/drm/bridge/thc63lvd1024.c
> > +++ b/drivers/gpu/drm/bridge/thc63lvd1024.c
> > @@ -34,7 +34,7 @@ struct thc63_dev {
> > struct drm_bridge bridge;
> > struct drm_bridge *next;
> >
> > - struct drm_bridge_timings timings;
> > + bool dual_link;
> > };
> >
> > static inline struct thc63_dev *to_thc63(struct drm_bridge *bridge)
> > @@ -62,7 +62,7 @@ static enum drm_mode_status thc63_mode_valid(struct drm_bridge *bridge,
> > * isn't supported by the driver yet, simply derive the limits from the
> > * input mode.
> > */
> > - if (thc63->timings.dual_link) {
> > + if (thc63->dual_link) {
> > min_freq = 40000;
> > max_freq = 150000;
> > } else {
> > @@ -157,13 +157,13 @@ static int thc63_parse_dt(struct thc63_dev *thc63)
> >
> > if (remote) {
> > if (of_device_is_available(remote))
> > - thc63->timings.dual_link = true;
> > + thc63->dual_link = true;
> > of_node_put(remote);
> > }
> > }
> >
> > dev_dbg(thc63->dev, "operating in %s-link mode\n",
> > - thc63->timings.dual_link ? "dual" : "single");
> > + thc63->dual_link ? "dual" : "single");
> >
> > return 0;
> > }
> > @@ -221,7 +221,6 @@ static int thc63_probe(struct platform_device *pdev)
> > thc63->bridge.driver_private = thc63;
> > thc63->bridge.of_node = pdev->dev.of_node;
> > thc63->bridge.funcs = &thc63_bridge_func;
> > - thc63->bridge.timings = &thc63->timings;
> >
> > drm_bridge_add(&thc63->bridge);
> >
> > diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
> > index 7616f65..3228018 100644
> > --- a/include/drm/drm_bridge.h
> > +++ b/include/drm/drm_bridge.h
> > @@ -362,14 +362,6 @@ struct drm_bridge_timings {
> > * input signal after the clock edge.
> > */
> > u32 hold_time_ps;
> > - /**
> > - * @dual_link:
> > - *
> > - * True if the bus operates in dual-link mode. The exact meaning is
> > - * dependent on the bus type. For LVDS buses, this indicates that even-
> > - * and odd-numbered pixels are received on separate links.
> > - */
> > - bool dual_link;
> > };
> >
> > /**
>
> --
> Regards,
>
> Laurent Pinchart
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