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drm/radeon/kms: remove new pll algo

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The recent changes to the old algo (prefer high post div)
coupled with the range and precision limitations of using
fixed point with the new algo make the new algo less
useful.  So drop the new algo.  This should work as well
or better than the old new/old combinations and simplifies
the code a lot.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=30218
among others.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2010-09-29 11:37:41 -04:00
committed by Dave Airlie
parent f28488c282
commit 48dfaaeb66
7 changed files with 9 additions and 278 deletions
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4
drivers/gpu/drm/radeon/radeon_legacy_crtc.c
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@@ -717,10 +717,6 @@ static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
pll = &rdev->clock.p1pll;
pll->flags = RADEON_PLL_LEGACY;
if (radeon_new_pll == 1)
pll->algo = PLL_ALGO_NEW;
else
pll->algo = PLL_ALGO_LEGACY;
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (encoder->crtc == crtc) {