linux-kernel - Re: [PATCH v3 11/24] drm/sun4i: Don't check for LVDS and RGB when TCON has only ch1

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Message-ID: <CAGb2v64VJ2Mxq7jS=rtUNFwE6BccdDcHPN7MvG0dLHnKoMNJow@mail.gmail.com>
Date:   Thu, 28 Jun 2018 10:08:51 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Jernej Skrabec <jernej.skrabec@...l.net>
Cc:     Maxime Ripard <maxime.ripard@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [PATCH v3 11/24] drm/sun4i: Don't check for LVDS and RGB when
 TCON has only ch1

On Mon, Jun 25, 2018 at 8:02 PM, Jernej Skrabec <jernej.skrabec@...l.net> wrote:
> LVDS and RGB interfaces are always connected to TCONs which have channel
> 0. It doesn't make sense to try to init them on TV TCONs.
>
> Add a check if TCON has channel 0 before trying to init LVDS or RGB
> interface.
>
> Signed-off-by: Jernej Skrabec <jernej.skrabec@...l.net>

Reviewed-by: Chen-Yu Tsai <wens@...e.org>

Though I think at some point we could just have separate functions
to handle channel 0 and channel 1.

ChenYu