Date:	Sun, 06 Sep 2015 10:06:44 +0800
From:	Yakir Yang <ykk@...k-chips.com>
To:	Thierry Reding <treding@...dia.com>,
	Mark Yao <mark.yao@...k-chips.com>
CC:	Heiko Stuebner <heiko@...ech.de>,
	Jingoo Han <jingoohan1@...il.com>,
	Inki Dae <inki.dae@...sung.com>, joe@...ches.com,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	djkurtz@...omium.com, dianders@...omium.com, seanpaul@...omium.com,
	ajaynumb@...il.com, Andrzej Hajda <a.hajda@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	David Airlie <airlied@...ux.ie>,
	Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
	Andy Yan <andy.yan@...k-chips.com>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Kishon Vijay Abraham I <kishon@...com>,
	architt@...eaurora.org, robherring2@...il.com,
	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...t.NULL.NULL, s.infradead.org@...L.NULL,
	Mark Yao <yzq@...k-chips.com>
Subject: Re: [PATCH v4 09/16] drm: rockchip: add bpc and color mode setting

Hi Thierry,

在 09/03/2015 04:38 PM, Thierry Reding 写道:
> On Wed, Sep 02, 2015 at 06:02:25PM +0800, Yakir Yang wrote:
>> 在 2015/9/2 16:34, Thierry Reding 写道:
> [...]
>>> At the very least your code must compile when applied against a recent
>>> upstream tree. I would also expect you to make sure the code works at
>>> runtime, though, contrary to build testing, not everybody will be able
>>> to verify that you've actually done so. It is ultimately your platform
>>> maintainer's (i.e. Heiko's) responsibility to ensure that because they
>>> will get to deal with user complaints if people can't run an upstream
>>> kernel on the devices.
>> Oh, first time to know this rule. So I should work on Heiko's github
>> kernel branch at the first time to start send upstream.
> It's usually not necessary to rebase on a specific platform tree. Most
> platform trees should feed into linux-next anyway, so linux-next would
> be the appropriate base in almost all cases.
>
> Note, though, that that's only true if you expect somebody else to merge
> your code. The reason is that whoever will end up applying your patches
> will likely apply to a tree that feeds into linux-next, and that way you
> both end up having roughly the same base.
>
> On the other hand if you are a maintainer yourself you should be keeping
> a branch based on the latest -rc1. That's especially important if your
> tree feeds into linux-next, because basing on linux-next will break very
> horribly that way.
>
> So for this particular case I would expect either Mark or Inki to apply
> these patches when they're ready. Their trees should be based on the
> latest -rc1. At least the Exynos DRM tree feeds into linux-next, so you
> should be fine if you use linux-next as a base.

Glad to know this, thanks,
- Yakir

>
> Mark, have you ever considered having your tree added to linux-next?
>
> I'm beginning to think that we need to make that a requirement for all
> DRM drivers so that we can resolve integration issues early on rather
> than Dave having to deal with them when he pulls code in.
>
> Thierry


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