aboutsummaryrefslogtreecommitdiffstats
path: root/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0195-drm-amd-display-Fix-64-bit-division.patch
diff options
context:
space:
mode:
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0195-drm-amd-display-Fix-64-bit-division.patch')
-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0195-drm-amd-display-Fix-64-bit-division.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0195-drm-amd-display-Fix-64-bit-division.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0195-drm-amd-display-Fix-64-bit-division.patch
new file mode 100644
index 00000000..aff1994d
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0195-drm-amd-display-Fix-64-bit-division.patch
@@ -0,0 +1,28 @@
+From 2f3efa7c7c3f73292fb4a7d46f7b39136fda57cc Mon Sep 17 00:00:00 2001
+From: Harry Wentland <harry.wentland@amd.com>
+Date: Mon, 6 Feb 2017 11:23:20 -0500
+Subject: [PATCH 0195/4131] drm/amd/display: Fix 64-bit division
+
+Signed-off-by: Harry Wentland <harry.wentland@amd.com>
+Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/dce/dce_abm.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c
+index f4696bf..7005ebb 100644
+--- a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c
++++ b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c
+@@ -94,7 +94,7 @@ static unsigned int get_current_backlight(struct dce_abm *abm_dce)
+ if (bl_period == 0)
+ bl_period = 0xFFFF;
+
+- current_backlight /= bl_period;
++ current_backlight = div_u64(current_backlight, bl_period);
+ current_backlight = (current_backlight + 1) >> 1;
+
+ current_backlight = (uint64_t)(current_backlight) * bl_period;
+--
+2.7.4
+