linux-kernel - Re: [PATCH v9 1/3] drm: rockchip: Add basic drm driver

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Message-ID: <1412720776.2797.8.camel@snewbury.org.uk>
Date:	Tue, 07 Oct 2014 23:26:16 +0100
From:	Steven Newbury <steve@...wbury.org.uk>
To:	Andrzej Hajda <a.hajda@...sung.com>
Cc:	Mark yao <mark.yao@...k-chips.com>, heiko@...ech.de,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>,
	David Airlie <airlied@...il.com>,
	Rob Clark <robdclark@...il.com>,
	Daniel Vetter <daniel@...ll.ch>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	Grant Likely <grant.likely@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	John Stultz <john.stultz@...aro.org>,
	Rom Lemarchand <romlem@...gle.com>, linux-doc@...r.kernel.org,
	kever.yang@...k-chips.com, dri-devel@...ts.freedesktop.org,
	dianders@...omium.org, xjq@...k-chips.com, zyw@...k-chips.com,
	cym@...k-chips.com, linux-rockchip@...ts.infradead.org,
	kfx@...k-chips.com, wxt@...k-chips.com, huangtao@...k-chips.com,
	devicetree@...r.kernel.org, dbehr@...omium.org, yxj@...k-chips.com,
	olof@...om.net, djkurtz@...omium.org, marcheu@...omium.org,
	xxm@...k-chips.com, xw@...k-chips.com, linux-api@...r.kernel.org,
	linux-kernel@...r.kernel.org, cf@...k-chips.com
Subject: Re: [PATCH v9 1/3] drm: rockchip: Add basic drm driver

I've just been discussing how this relates to rk29xx on #etnaviv.  I 
looked through the patch and it's good to see it's not limited to 
supporting Mali GPUs.  I see no reason this wouldn't be compatible 
with etna_viv for rk29xx (or future Rockchip designs with alternative 
GPUs) as long as the rest of the infrastructure to support rk29 is in 
place iommu (ARM SMMU?) driver, for example.

IMHO it's vital to keep a logical separation between the video display 
hardware and the graphics processor on SoCs.


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