[Intel-gfx] [PATCH] drm/i915: Only look for matching clocks for LVDS downclock

Jesse Barnes jbarnes at virtuousgeek.org
Mon Jan 16 21:20:03 CET 2012

On Tue, 10 Jan 2012 15:09:36 -0800
Sean Paul <seanpaul at chromium.org> wrote:

> This patch enforces that the downclock clock source is the same as the preferred
> clock source for LVDS. This fixes a bug where the driver chooses a downclock
> clock source with a different P than the preferred mode clock source. This
> happened even if the preferred clock source implemented an acceptable rate for
> the downclock. The result of this bug is that downclock is disabled.
> Signed-off-by: Sean Paul <seanpaul at chromium.org>
> ---

Yeah looks like a good cleanup that also makes downclocking more likely.

Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>

Jesse Barnes, Intel Open Source Technology Center
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