linux-kernel - Re: [PATCH 2/5] drm/bridge/synopsys: dw-hdmi: Add "unwedge" for ddc bus

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Date:   Wed, 15 May 2019 11:36:33 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Sean Paul <sean@...rly.run>
Cc:     Heiko Stuebner <heiko@...ech.de>, Sandy Huang <hjc@...k-chips.com>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Neil Armstrong <narmstrong@...libre.com>,
        David Airlie <airlied@...ux.ie>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Sean Paul <seanpaul@...omium.org>
Subject: Re: [PATCH 2/5] drm/bridge/synopsys: dw-hdmi: Add "unwedge" for ddc bus

Hi,

On Wed, May 15, 2019 at 11:20 AM Sean Paul <sean@...rly.run> wrote:

> > +                     if (IS_ERR(hdmi->default_state) &&
> > +                         !IS_ERR(hdmi->unwedge_state)) {
> > +                             dev_warn(dev,
> > +                                      "Unwedge requires default pinctrl\n");
>
> Can you downgrade this message to info or dbg? Given how rare this issue is, we
> probably don't want to spam everyone who is happily using dw-hdmi.

I don't think it will spam anyone, will it?  It will only spam if you
_do_ specify an unwedge state and you _don't_ specify a default state.
This seems like something you'd want a pretty serious warning about
because it meant that you wanted to use unwedge but you didn't specify
it properly.


> Reviewed-by: Sean Paul <sean@...rly.run>

Thanks!

-Doug