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Revert "drm/radeon/kms: switch back to min->max pll post divider iteration"

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This reverts commit a6f9761743.

Remove this commit as it is no longer necessary. The relevant bugs
were fixed properly in:
drm/radeon/kms: hopefully fix pll issues for real (v3)
5b40ddf888
drm/radeon/kms: add missing frac fb div flag for dce4+
9f4283f49f

This commit also broke certain ~5 Mhz modes on old arcade monitors,
so reverting this commit fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=29502

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2011-02-21 01:11:59 -05:00 committed by Dave Airlie
parent d8204a37ba
commit bd6a60afeb
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/radeon/radeon_display.c
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@ -971,7 +971,7 @@ void radeon_compute_pll_legacy(struct radeon_pll *pll,
max_fractional_feed_div = pll->max_frac_feedback_div; max_fractional_feed_div = pll->max_frac_feedback_div;
} }
for (post_div = min_post_div; post_div <= max_post_div; ++post_div) { for (post_div = max_post_div; post_div >= min_post_div; --post_div) {
uint32_t ref_div; uint32_t ref_div;
if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1)) if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))