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

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Message-ID: <CAG3jFytWGSUM9mevHewdmEe-hq3JgB74s7_f0fsEQqkXr9VUHg@mail.gmail.com>
Date:   Fri, 22 Apr 2022 16:01:47 +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 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>