linux-kernel - Re: [RFC 0/5] drm/tegra: Convert to master/component framework

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Message-ID: <20140430220154.GA23950@ulmo>
Date:	Thu, 1 May 2014 00:01:55 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	dri-devel@...ts.freedesktop.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Russell King <rmk+kernel@....linux.org.uk>,
	linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re: [RFC 0/5] drm/tegra: Convert to master/component framework

On Tue, Apr 22, 2014 at 05:09:28PM +0200, Thierry Reding wrote:
> From: Thierry Reding <treding@...dia.com>
> 
> Hi,
> 
> This series converts the Tegra DRM driver to the master/component
> framework. The length of the series and the list of people in Cc is
> mostly due to the fact that Tegra has some special requirements as
> opposed to other drivers and therefore requires some changes outside
> of DRM.
> 
> Patches 1 and 2 make some changes to the master/component framework
> which are necessary to convert Tegra DRM to use it. Note that since I'm
> looking for early review I haven't converted any of the existing users
> since I'm not sure if these are acceptable changes.
> 
> Patch 3 adds a new interface framework that supplements the master/
> component framework and can be used in situations where there is no
> struct device * that a driver can bind to.
> 
> A new function is introduced in patch 4 which can be used to get rid of
> the DRM bus infrastructure in individual drivers. It should be able to
> replace the requirement of having a drm_bus for all USB and platform
> DRM drivers. For backwards-compatibility with legacy PCI drivers some-
> thing different will probably be needed.
> 
> Finally, patch 5 converts the Tegra DRM driver over to using the master/
> component framework using the above four patches.
> 
> Each patch has a somewhat more elaborate description of why it is needed
> or what problem it solves. The patchset applies on top of linux-next
> with Daniel's DRM cleanup series applied.
> 
> I welcome any questions or comments you might have.
> 
> Thierry
> 
> Thierry Reding (5):
>   drivers/base: Allow multiple masters per device
>   drivers/base: Allow driver-data to be attached to a master
>   drivers/base: Add interface framework
>   drm: Introduce drm_set_unique()
>   drm/tegra: Convert to master/component framework

Ping. Anyone?

Thierry

>  drivers/base/Makefile          |   2 +-
>  drivers/base/component.c       |  31 ++-
>  drivers/base/interface.c       | 186 ++++++++++++++
>  drivers/gpu/drm/drm_ioctl.c    |  37 ++-
>  drivers/gpu/drm/drm_stub.c     |   1 +
>  drivers/gpu/drm/tegra/Makefile |   1 -
>  drivers/gpu/drm/tegra/bus.c    |  64 -----
>  drivers/gpu/drm/tegra/dc.c     |  58 ++---
>  drivers/gpu/drm/tegra/drm.c    | 171 +++++++++----
>  drivers/gpu/drm/tegra/drm.h    |  27 +-
>  drivers/gpu/drm/tegra/dsi.c    | 144 +++++------
>  drivers/gpu/drm/tegra/gr2d.c   |  78 +++---
>  drivers/gpu/drm/tegra/gr3d.c   |  77 +++---
>  drivers/gpu/drm/tegra/hdmi.c   |  69 ++---
>  drivers/gpu/drm/tegra/sor.c    |  71 ++----
>  drivers/gpu/host1x/Makefile    |   1 -
>  drivers/gpu/host1x/bus.c       | 553 -----------------------------------------
>  drivers/gpu/host1x/bus.h       |  29 ---
>  drivers/gpu/host1x/dev.c       |  21 +-
>  drivers/gpu/host1x/dev.h       |   7 +-
>  include/drm/drmP.h             |   3 +
>  include/linux/component.h      |  20 +-
>  include/linux/host1x.h         |  64 +----
>  include/linux/interface.h      |  40 +++
>  24 files changed, 625 insertions(+), 1130 deletions(-)
>  create mode 100644 drivers/base/interface.c
>  delete mode 100644 drivers/gpu/drm/tegra/bus.c
>  delete mode 100644 drivers/gpu/host1x/bus.c
>  delete mode 100644 drivers/gpu/host1x/bus.h
>  create mode 100644 include/linux/interface.h
> 
> -- 
> 1.9.2
> 

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