From 0f3cd13d846105795de271ac64bb807df38513b7 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Wed, 9 Sep 2020 13:12:46 +0200 Subject: [PATCH] drm/radeon: revert "Prefer lower feedback dividers" MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Turns out this breaks a lot of different hardware. This reverts commit fc8c70526bd30733ea8667adb8b8ffebea30a8ed. Signed-off-by: Christian König Acked-by: Nirmoy Das Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 7b69d6d..e0ae911 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -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) { -- 2.7.4