Keith Packard 99eb6a01e5 drm/i915: Use CK505 as non-SSC source where available ...

When trying to use SSC on Ibex Peak without CK505, any non-SSC outputs
(like VGA or TV) get broken. So, do not use SSC on Ibex Peak unless
there is a CK505 available (as specified by the VBT).

On Cougar Point, all clocking is internal, so SSC can always be used,
and there will never be a CK505 available.

This eliminates VGA shimmer on some Ironlake machines which have a
CK505 clock source.

References: https://bugzilla.kernel.org/show_bug.cgi?id=21742
References: https://bugs.freedesktop.org/show_bug.cgi?id=38750
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

2011-09-28 14:08:06 -07:00

..

drm

drm/i915: Use CK505 as non-SSC source where available

2011-09-28 14:08:06 -07:00

stub

i915: select VIDEO_OUTPUT_CONTROL for ACPI_VIDEO

2011-04-13 09:10:25 +10:00

vga

drivers: use kzalloc/kcalloc instead of 'kmalloc+memset', where possible

2011-07-25 20:57:13 -07:00

Makefile

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