[Intel-gfx] [PATCH] drm/i915: add missing "break"

Keith Packard keithp at keithp.com
Tue Sep 27 01:05:03 CEST 2011


On Mon, 26 Sep 2011 13:56:17 -0700, Keith Packard <keithp at keithp.com> wrote:

> So, what I think we should be doing is using display_clock_mode to
> select between ck505 and internal clock source on pre-PCH hardware. For
> PCH hardware, we unconditionally use the ck505 source for the non-SSC
> reference. When we need to drive two outputs and are *not* using ck505,
> then we disable SSC.

Ok, I'm not sure this is trivial -- without CK505, how do we switch from
LVDS to LVDS+VGA (and back)? Seems like we'd have to turn the LVDS off
and back on to play with SSC. Is it worth dealing with that case? Or do
we just ignore SSC on non-CK505 hardware?

-- 
keith.packard at intel.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20110926/7bae0a66/attachment.sig>


More information about the Intel-gfx mailing list