linux-kernel - Re: [PATCH v2 4/4] drm/bridge: anx7625: Use DPI bus type

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Message-ID: <CAGXv+5E1cCNWD98fMDjC38y2UztZd=PNQ+=G=wrBYfoXkswvHA@mail.gmail.com>
Date:   Mon, 25 Apr 2022 16:24:50 +0800
From:   Chen-Yu Tsai <wenst@...omium.org>
To:     Robert Foss <robert.foss@...aro.org>, Xin Ji <xji@...logixsemi.com>
Cc:     dri-devel@...ts.freedesktop.org, Jonas Karlman <jonas@...boo.se>,
        David Airlie <airlied@...ux.ie>, qwen@...logixsemi.com,
        Neil Armstrong <narmstrong@...libre.com>,
        linux-kernel@...r.kernel.org,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        bliang@...logixsemi.com
Subject: Re: [PATCH v2 4/4] drm/bridge: anx7625: Use DPI bus type

On Fri, Apr 22, 2022 at 10:13 PM Robert Foss <robert.foss@...aro.org> wrote:
>
> On Fri, 22 Apr 2022 at 16:01, Robert Foss <robert.foss@...aro.org> wrote:
> >
> > On Fri, 22 Apr 2022 at 10:49, Xin Ji <xji@...logixsemi.com> wrote:
> > >
> > > As V4L2_FWNODE_BUS_TYPE_PARALLEL not properly descript for DPI
> > > interface, this patch use new defined V4L2_FWNODE_BUS_TYPE_DPI for it.
> > >
> > > Fixes: fd0310b6fe7d ("drm/bridge: anx7625: add MIPI DPI input feature")
> > > Signed-off-by: Xin Ji <xji@...logixsemi.com>
> > > ---
> > >  drivers/gpu/drm/bridge/analogix/anx7625.c | 8 ++++----
> > >  1 file changed, 4 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
> > > index 376da01243a3..71df977e8f53 100644
> > > --- a/drivers/gpu/drm/bridge/analogix/anx7625.c
> > > +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
> > > @@ -1623,14 +1623,14 @@ static int anx7625_parse_dt(struct device *dev,
> > >
> > >         anx7625_get_swing_setting(dev, pdata);
> > >
> > > -       pdata->is_dpi = 1; /* default dpi mode */
> > > +       pdata->is_dpi = 0; /* default dsi mode */
> > >         pdata->mipi_host_node = of_graph_get_remote_node(np, 0, 0);
> > >         if (!pdata->mipi_host_node) {
> > >                 DRM_DEV_ERROR(dev, "fail to get internal panel.\n");
> > >                 return -ENODEV;
> > >         }
> > >
> > > -       bus_type = V4L2_FWNODE_BUS_TYPE_PARALLEL;
> > > +       bus_type = 0;
> > >         mipi_lanes = MAX_LANES_SUPPORT;
> > >         ep0 = of_graph_get_endpoint_by_regs(np, 0, 0);
> > >         if (ep0) {
> > > @@ -1640,8 +1640,8 @@ static int anx7625_parse_dt(struct device *dev,
> > >                 mipi_lanes = of_property_count_u32_elems(ep0, "data-lanes");
> > >         }
> > >
> > > -       if (bus_type == V4L2_FWNODE_BUS_TYPE_PARALLEL) /* bus type is Parallel(DSI) */
> > > -               pdata->is_dpi = 0;
> > > +       if (bus_type == V4L2_FWNODE_BUS_TYPE_DPI) /* bus type is DPI */
> > > +               pdata->is_dpi = 1;
> > >
> > >         pdata->mipi_lanes = mipi_lanes;
> > >         if (pdata->mipi_lanes > MAX_LANES_SUPPORT || pdata->mipi_lanes <= 0)
> >
> > Reviewed-by: Robert Foss <robert.foss@...aro.org>
>
> Acked-by: Robert Foss <robert.foss@...aro.org>

Tested-by: Chen-Yu Tsai <wenst@...omium.org>

Confirmed this fixes the display on Juniper (Acer Chromebook Spin 311) on
mainline (next-20220422).

Xin, in the future, please send the whole series to all recipients of
all patches listed by get_maintainers.pl, not just the recipients of
each patch. In the case of this series, they should have been sent
to all of the mailing lists (media, devicetree, dri-devel) so that
everyone has the same, full view of the patches.

ChenYu