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

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Seems more reliable.  Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=26552

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
2011-01-31 16:48:50 -05:00
committed by Dave Airlie
parent 20d391d725
commit a6f9761743
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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@@ -849,7 +849,7 @@ void radeon_compute_pll(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 = max_post_div; post_div >= min_post_div; --post_div) { for (post_div = min_post_div; post_div <= max_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))