Subject: Re: [PATCH v3 06/14] Documentation: drm/bridge: add document for
 analogix_dp
To: Rob Herring <robherring2@gmail.com>,
        Russell King - ARM Linux <linux@arm.linux.org.uk>
References: <1439995728-18046-1-git-send-email-ykk@rock-chips.com>
 <1439995834-18363-1-git-send-email-ykk@rock-chips.com>
 <CAL_JsqLz+8RtBucctUj4euXZ3Ac0DvB52N9ONpAerh5T9BiTJg@mail.gmail.com>
 <20150824125758.GA7557@n2100.arm.linux.org.uk>
 <CAL_JsqKZYMMzV9Sc2r3K_rnM0FNuyb1TyJEhjGq1Hf7dTiWFKQ@mail.gmail.com>
Cc: Heiko Stuebner <heiko@sntech.de>, Thierry Reding <treding@nvidia.com>,
        Jingoo Han <jingoohan1@gmail.com>,
        Fabio Estevam <fabio.estevam@freescale.com>,
        Inki Dae <inki.dae@samsung.com>, Joe Perches <joe@perches.com>,
        Sean Paul <seanpaul@google.com>, Takashi Iwai <tiwai@suse.de>,
        dri-devel <dri-devel@lists.freedesktop.org>,
        Andrzej Hajda <a.hajda@samsung.com>,
        Gustavo Padovan <gustavo.padovan@collabora.co.uk>,
        "linux-samsung-soc@vger.kernel.org" 
	<linux-samsung-soc@vger.kernel.org>,
        Vincent Palatin <vpalatin@chromium.org>,
        linux-rockchip@lists.infradead.org,
        Kishon Vijay Abraham I <kishon@ti.com>,
        David Airlie <airlied@linux.ie>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        Pawel Moll <pawel.moll@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Doug Anderson <dianders@google.com>, Rob Herring <robh+dt@kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        Mark Yao <mark.yao@rock-chips.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Kyungmin Park <kyungmin.park@samsung.com>,
        Daniel Kurtz <djkurtz@google.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Kumar Gala <galak@codeaurora.org>, Ajay kumar <ajaynumb@gmail.com>,
        Andy Yan <andy.yan@rock-chips.com>
From: Yakir Yang <ykk@rock-chips.com>
Message-ID: <55DBC32F.4040607@rock-chips.com>
Date: Tue, 25 Aug 2015 09:21:51 +0800
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在 2015/8/24 22:48, Rob Herring 写道:
> On Mon, Aug 24, 2015 at 7:57 AM, Russell King - ARM Linux
> <linux@arm.linux.org.uk> wrote:
>> On Sun, Aug 23, 2015 at 06:23:14PM -0500, Rob Herring wrote:
>>> On Wed, Aug 19, 2015 at 9:50 AM, Yakir Yang <ykk@rock-chips.com> wrote:
>>>> +       -analogix,color-depth:
>>>> +               number of bits per colour component.
>>>> +                       COLOR_6 = 0, COLOR_8 = 1, COLOR_10 = 2, COLOR_12 = 3
>>> This seems pretty generic. Just use 6, 8, 10, or 12 for values. And
>>> drop the vendor prefix.
>> Please think about this some more.  What does "color-depth" mean?  Does it
>> mean the number of bits per colour _component_, or does it mean the total
>> number of bits to represent a particular colour.  It's confusing as it
>> stands.
> Then "component-color-bpp" perhaps?

Actually this "color-bpp" should come from crtc driver, maybe should 
come from
"struct drm_crtc {".

Like rockchip stuffs, analogix_dp-rockchip call an mode_config from 
rockchip_drm_vop
driver and set output mode to RGB[10:10:10], then vop driver just store 
the output mode
type to the private struct "vop->connecot_out_mode". do think that this 
outmode should
store into crtc, not just come from DT prop.

- Yakir

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