Re: [Linux-fbdev-devel] [RFC 2.6.26-rc3 2/7] pxafb: add shared framebuffer interface

[Krzysztof H. <krz...@po...>]

On Sat,  7 Jun 2008 00:49:21 -0400
Jaya Kumar <jay...@gm...> wrote:

> These changes are to make it possible for a secondary driver to share the
> pxafb framebuffer. The changes include:
> - adding clkdev entry in pxafb_mach_info so that a driver can pass in the
>   correct struct device owner for the LCDCLK.
> - adding custom_xfer_div entry so that a driver can have custom sized
>   transfers. For example, the metronome controller uses 16 bit AMLCD
>   transfers but actually has 3 bit pixels in 8 bit containers.
> - adding extra_video_mem entry so that a driver can tell pxafb of its
>   additional needs.
> - adding share_video_mem/unshare_video_mem callbacks to notify the secondary
>   driver of the framebuffer address, to allow refcounting, and to cleanup on
>   completion.
> 
> Signed-off-by: Jaya Kumar <jay...@gm...>
> ---
>  arch/arm/mach-pxa/devices.c      |    2 +
>  drivers/video/pxafb.c            |   45 ++++++++++++++++++++++++++++++++-----
>  include/asm-arm/arch-pxa/pxafb.h |    9 +++++++
>  3 files changed, 50 insertions(+), 6 deletions(-)
> 

Acked-by: Krzysztof Helt <krz...@wp...>

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