linux-kernel - Re: [PATCH] drm/i2c: tda998x: don't register the connector

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Message-ID: <CAKMK7uF7o59A=++R4kykSusfwEV5vSWWCswN6Gp9O_LcrdiQ-A@mail.gmail.com>
Date:   Fri, 23 Sep 2016 12:58:46 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Liviu Dudau <Liviu.Dudau@....com>
Cc:     Brian Starkey <brian.starkey@....com>,
        Sean Paul <seanpaul@...omium.org>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: [PATCH] drm/i2c: tda998x: don't register the connector

On Fri, Sep 23, 2016 at 11:34 AM, Liviu Dudau <Liviu.Dudau@....com> wrote:
> rmmod-ing the hdlcd module generates a WARN() splat as the vsync is still
> enabled, but we never got the call to turn off the CRTC. Brian is still
> tracking through the fbdev emulation to figure out the cause for that.

fbdev emulation doesn't do that for you. If you need/want to shut down
all the crtcs on driver unload, you need to do that yourself. There's
atomic helpers to do that for you that for you.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch