linux-kernel - Re: [PATCH v3 6/7] drm: sun4i: dsi: Use drm_panel

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Date:   Fri, 26 Feb 2021 17:57:23 +0100
From:   Maxime Ripard <mripard@...nel.org>
To:     Jagan Teki <jagan@...rulasolutions.com>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-amarula@...rulasolutions.com
Subject: Re: [PATCH v3 6/7] drm: sun4i: dsi: Use drm_panel_bridge, connector
 API

Hi,

On Mon, Feb 15, 2021 at 01:11:01AM +0530, Jagan Teki wrote:
> Use drm_panel_bridge to replace manual panel handling code.
>
> This simplifies the driver to allows all components in the
> display pipeline to be treated as bridges, paving the way
> to generic connector handling.
>
> Use drm_bridge_connector_init to create a connector for display
> pipelines that use drm_bridge.
>
> This allows splitting connector operations across multiple bridges
> when necessary, instead of having the last bridge in the chain
> creating the connector and handling all connector operations
> internally.
>
> Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>

Most of the code removed in that patch was actually introduced earlier
which feels a bit weird. Is there a reason we can't do that one first,
and then introduce the bridge support?

Maxime