From 7c26773ca09884b5ca1ee37dc5bbfcbe143b1e28 Mon Sep 17 00:00:00 2001 From: Stephan Raue Date: Sun, 13 Apr 2014 00:21:28 +0200 Subject: [PATCH] linux: update PLL numbers patch Signed-off-by: Stephan Raue --- ...k-finding-display-PLL-numbers-fix-range.patch | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/packages/linux/patches/3.14/linux-997-drm-radeon-rework-finding-display-PLL-numbers-fix-range.patch b/packages/linux/patches/3.14/linux-997-drm-radeon-rework-finding-display-PLL-numbers-fix-range.patch index 5afc02005b..a12ae3d7aa 100644 --- a/packages/linux/patches/3.14/linux-997-drm-radeon-rework-finding-display-PLL-numbers-fix-range.patch +++ b/packages/linux/patches/3.14/linux-997-drm-radeon-rework-finding-display-PLL-numbers-fix-range.patch @@ -1,20 +1,16 @@ -From 146b3e334cdbfa4bf5b5d3a4162f7b677356773d Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Christian=20K=C3=B6nig?= -Date: Fri, 4 Apr 2014 13:45:42 +0200 -Subject: [PATCH] drm/radeon: apply more strict limits for PLL params -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit +From: Christian König Letting post and refernce divider get to big is bad for signal stability. -Signed-off-by: Christian König +v2: increase the limit to 210 + +Signed-off-by: Christian König --- drivers/gpu/drm/radeon/radeon_display.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c -index 386cfa4..d68863e 100644 +index 386cfa4..2f42912 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -937,6 +937,9 @@ void radeon_compute_pll_avivo(struct radeon_pll *pll, @@ -22,7 +18,7 @@ index 386cfa4..d68863e 100644 post_div = post_div_best; + /* limit reference * post divider to a maximum */ -+ ref_div_max = min(100 / post_div, ref_div_max); ++ ref_div_max = min(210 / post_div, ref_div_max); + /* get matching reference and feedback divider */ ref_div = max(den / post_div, 1u);