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From: Eric Anholt <eric@anholt.net>
To: Hans Verkuil <hverkuil@xs4all.nl>, linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org,
        Hans Verkuil <hans.verkuil@cisco.com>
Subject: Re: [PATCH 3/4] drm/vc4: Add register defines for CEC.
In-Reply-To: <20170711112021.38525-4-hverkuil@xs4all.nl>
References: <20170711112021.38525-1-hverkuil@xs4all.nl> <20170711112021.38525-4-hverkuil@xs4all.nl>
Date: Wed, 12 Jul 2017 11:33:12 -0700
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Hans Verkuil <hverkuil@xs4all.nl> writes:

> From: Eric Anholt <eric@anholt.net>
>
> Basic usage:
>
> poweron: HSM clock should be running.  Set the bit clock divider,
> set all the other _US timeouts based on bit clock rate.  Bring RX/TX
> reset up and then down.
>
> powerdown: Set RX/TX reset.
>
> interrupt: read CPU_STATUS, write bits that have been handled to
> CPU_CLEAR.
>
> Bits are added to /debug/dri/0/hdmi_regs so you can check out the
> power-on values.

Let's drop my hints to you from the commit message here :)

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