[Intel-gfx] [PATCH] drm/i915: get mode clock when reading the pipe config v2

[Jesse Barnes]

On Fri,  3 May 2013 15:34:41 -0700
Jesse Barnes <jbarnes at virtuousgeek.org> wrote:

> We need this for comparing modes between configuration changes.
> 
> v2: try harder to calulate non-simple pixel clocks (Daniel)
>     call get_clock after getting the encoder config, needed for pixel multiply
>     (Jesse)
> 

In reply to danvet's questions:
  - I can move the pixel multiplier into get_config; I thought some of
    our encoder regs had a bit that could be used
  - if I do that, I don't need to call get_clock separately; it needs
    the pixel multiplier to calculate m/n correctly, so that's why I
    had to put it after the encoder get_config

I added pipe config checks for the new mode flags, and I get warnings
now, but I don't want to add one for the clock just yet.  Maybe after
everything is in and working we can add one...

-- 
Jesse Barnes, Intel Open Source Technology Center