linux-kernel - Re: [PATCH v14 0/3] Add drm driver for Rockchip Socs

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Date:	Thu, 27 Nov 2014 15:08:39 +0800
From:	Mark yao <mark.yao@...k-chips.com>
To:	Dave Airlie <airlied@...il.com>
CC:	Joerg Roedel <jroedel@...e.de>,
	Heiko Stübner <heiko@...ech.de>,
	Boris BREZILLON <boris.brezillon@...e-electrons.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>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	linux-doc@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	dri-devel <dri-devel@...ts.freedesktop.org>,
	linux-api@...r.kernel.org, linux-rockchip@...ts.infradead.org,
	Douglas Anderson <dianders@...omium.org>,
	Stéphane Marchesin <marcheu@...omium.org>,
	dbehr@...omium.org, Olof Johansson <olof@...om.net>,
	Daniel Kurtz <djkurtz@...omium.org>,
	Eddie Cai <cf@...k-chips.com>, simon xue <xxm@...k-chips.com>,
	Tao Huang <huangtao@...k-chips.com>,
	Kever Yang <kever.yang@...k-chips.com>, yxj@...k-chips.com,
	xw@...k-chips.com
Subject: Re: [PATCH v14 0/3] Add drm driver for Rockchip Socs

On 2014年11月27日 10:12, Dave Airlie wrote:
>>>
>> Hi Dave
>>      Do you mean that I need send you a branch, based on drm-next, merge with
>> iommu tree and rockchip drm?
> Yes, grab drm-next, git pull the arm/rockchip branch from Joerg's
> tree, put rockchip drm
> patches on top, send me pull request.
>
> I'll validate it then.
>
> Dave.
>
Hi Dave
     I have send a pull request to you, with Joerg's iommu arm/rockchip 
branch.

     I got a same problem when use "make multi_v7_defconfig" as Heiko said:
         drivers/video/fbdev/Kconfig:5:error: recursive dependency detected!
         drivers/video/fbdev/Kconfig:5:    symbol FB is selected by 
DRM_KMS_FB_HELPER
         drivers/gpu/drm/Kconfig:34:    symbol DRM_KMS_FB_HELPER is 
selected by DRM_ROCKCHIP
         drivers/gpu/drm/rockchip/Kconfig:1:    symbol DRM_ROCKCHIP 
depends on ARM_DMA_USE_IOMMU
         arch/arm/Kconfig:95:    symbol ARM_DMA_USE_IOMMU is selected by 
VIDEO_OMAP3
         drivers/media/platform/Kconfig:96:    symbol VIDEO_OMAP3 
depends on VIDEO_V4L2
         drivers/media/v4l2-core/Kconfig:6:    symbol VIDEO_V4L2 depends 
on I2C
         drivers/i2c/Kconfig:7:    symbol I2C is selected by FB_DDC
         drivers/video/fbdev/Kconfig:59:    symbol FB_DDC is selected by 
FB_CYBER2000_DDC
         drivers/video/fbdev/Kconfig:374:    symbol FB_CYBER2000_DDC 
depends on FB_CYBER2000
         drivers/video/fbdev/Kconfig:362:    symbol FB_CYBER2000 depends 
on FB

     I was confused how to solve the recursive dependency, remove 
depends on ARM_DMA_USE_IOMMU & IOMMU_API?

- Mark



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