[PATCH 1/3] drm/radeon/kms: prefer high post dividers in legacy pll algo
Alex Deucher
alexdeucher at gmail.com
Wed Sep 29 08:37:39 PDT 2010
the hw prefers higher post dividers
Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
---
drivers/gpu/drm/radeon/radeon_display.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 7422f27..1de2248 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -513,7 +513,7 @@ static void radeon_compute_pll_legacy(struct radeon_pll *pll,
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;
if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
--
1.7.1.1
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