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drm/radeon: revert "Prefer lower feedback dividers"

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Turns out this breaks a lot of different hardware.

This reverts commit fc8c70526b.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2020-09-09 13:12:46 +02:00 committed by Alex Deucher
parent 719a6513fb
commit 0f3cd13d84
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/radeon/radeon_display.c
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@ -933,7 +933,7 @@ static void avivo_get_fb_ref_div(unsigned nom, unsigned den, unsigned post_div,
/* get matching reference and feedback divider */
*ref_div = min(max(den/post_div, 1u), ref_div_max);
*fb_div = max(nom * *ref_div * post_div / den, 1u);
*fb_div = DIV_ROUND_CLOSEST(nom * *ref_div * post_div, den);
/* limit fb divider to its maximum */
if (*fb_div > fb_div_max) {