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Subject: Re: [RESEND PATCH 5/6] ASoC: cdn-dp: Add cdn DP codec driver
To: Vinod Koul <vinod.koul@intel.com>, Mark Brown <broonie@kernel.org>
References: <1464345942-4795-1-git-send-email-zyw@rock-chips.com>
 <1464345942-4795-6-git-send-email-zyw@rock-chips.com>
 <20160527202312.GB29837@sirena.org.uk> <20160530033321.GD16910@localhost>
Cc: dianders@chromium.org, tfiga@chromium.org, heiko@sntech.de,
        yzq@rock-chips.com, linux-rockchip@lists.infradead.org,
        Liam Girdwood <lgirdwood@gmail.com>, Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Charles Keepax <ckeepax@opensource.wolfsonmicro.com>,
        Michael Trimarchi <michael@amarulasolutions.com>,
        Bard Liao <bardliao@realtek.com>,
        Adam Thomson <Adam.Thomson.Opensource@diasemi.com>,
        anish kumar <yesanishhere@gmail.com>,
        Jacob Siverskog <jacob@teenage.engineering>,
        Richard Fitzgerald <rf@opensource.wolfsonmicro.com>,
        "Damien.Horsley" <Damien.Horsley@imgtec.com>,
        Oder Chiou <oder_chiou@realtek.com>, Jyri Sarha <jsarha@ti.com>,
        Caesar Wang <wxt@rock-chips.com>, linux-kernel@vger.kernel.org,
        alsa-devel@alsa-project.org
From: Chris Zhong <zyw@rock-chips.com>
Message-ID: <574BEB15.20704@rock-chips.com>
Date: Mon, 30 May 2016 15:26:13 +0800
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Hi Mark & Vinod

Thanks for your suggestion, I am going to use this HDMI codec driver.
But it seems no one use it, currently.

On 05/30/2016 11:33 AM, Vinod Koul wrote:
> On Fri, May 27, 2016 at 09:23:12PM +0100, Mark Brown wrote:
>> On Fri, May 27, 2016 at 06:45:41PM +0800, Chris Zhong wrote:
>>> codec driver get some interfaces from cdn-dp driver, than using those
>>> to set DP audio formats, corresponding to alsa formats.
>> I'm not seeing anything Rockchip specific in here...  DisplayPort is
>> backwards compatible with HDMI, shouldn't this be using the existing
>> hdmi-codec code?
>
> Yup, typically only difference between the two would be programming the
> info frame for DP or HDMI, otherwise it is pretty much same stuff...
>
> They should patch hdmi-codec for that, if that is not supported.
>
> Thanks