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

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Date:   Fri, 22 Apr 2022 16:13:46 +0200
From:   Robert Foss <robert.foss@...aro.org>
To:     Xin Ji <xji@...logixsemi.com>
Cc:     Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, bliang@...logixsemi.com,
        qwen@...logixsemi.com, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] drm/bridge: anx7625: Use DPI bus type

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>