[PATCHv4 1/3] mx2_camera: Add soc_camera support for i.MX25/i.MX27

[g.liakhovetski@gmx.de (Guennadi Liakhovetski)]

On Wed, 30 Jun 2010, Uwe Kleine-K?nig wrote:

> On Mon, Jun 21, 2010 at 08:15:58AM +0300, Baruch Siach wrote:
> > This is the soc_camera support developed by Sascha Hauer for the i.MX27.  Alan
> > Carvalho de Assis modified the original driver to get it working on more recent
> > kernels. I modified it further to add support for i.MX25. This driver has been
> > tested on i.MX25 and i.MX27 based platforms.
> > 
> > Signed-off-by: Baruch Siach <baruch@tkos.co.il>
> > ---
> >  arch/arm/plat-mxc/include/mach/memory.h  |    4 +-
> >  arch/arm/plat-mxc/include/mach/mx2_cam.h |   46 +
> >  drivers/media/video/Kconfig              |   13 +
> >  drivers/media/video/Makefile             |    1 +
> >  drivers/media/video/mx2_camera.c         | 1493 ++++++++++++++++++++++++++++++
> >  5 files changed, 1555 insertions(+), 2 deletions(-)
> >  create mode 100644 arch/arm/plat-mxc/include/mach/mx2_cam.h
> >  create mode 100644 drivers/media/video/mx2_camera.c
> > 
> > diff --git a/arch/arm/plat-mxc/include/mach/memory.h b/arch/arm/plat-mxc/include/mach/memory.h
> > index c4b40c3..5803836 100644
> > --- a/arch/arm/plat-mxc/include/mach/memory.h
> > +++ b/arch/arm/plat-mxc/include/mach/memory.h
> > @@ -44,12 +44,12 @@
> >   */
> >  #define CONSISTENT_DMA_SIZE SZ_8M
> >  
> > -#elif defined(CONFIG_MX1_VIDEO)
> > +#elif defined(CONFIG_MX1_VIDEO) || defined(CONFIG_MX2_VIDEO)
> >  /*
> >   * Increase size of DMA-consistent memory region.
> >   * This is required for i.MX camera driver to capture at least four VGA frames.
> >   */
> >  #define CONSISTENT_DMA_SIZE SZ_4M
> > -#endif /* CONFIG_MX1_VIDEO */
> > +#endif /* CONFIG_MX1_VIDEO || CONFIG_MX2_VIDEO */
> Why not use CONFIG_VIDEO_MX2 here and get rid of CONFIG_MX2_VIDEO?

Well, firstly for uniformity with MX1 and MX3, secondly not to have to use 
(CONFIG_VIDEO_MX2 || CONFIG_VIDEO_MX2_MODULE), also note, that 
CONFIG_MX1_VIDEO is also used for linking of the FIQ handler for the camera.

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/