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authorPaolo Bonzini <pbonzini@redhat.com>2022-09-01 19:21:27 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2022-09-01 19:21:27 -0400
commit29250ba51bc1cbe8a87e923f76978b87c3247a8c (patch)
treeb6afc83e580ae3b746aa530434f56bb6fb80cc8b /drivers/gpu/drm/amd/display/dc/basics/conversion.c
parent35906d23cf036857738d49b0d9388376145dc017 (diff)
parentca922fecda6caa5162409406dc3b663062d75089 (diff)
Merge tag 'kvm-s390-master-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
PCI interpretation compile fixes
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/basics/conversion.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/basics/conversion.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/basics/conversion.c b/drivers/gpu/drm/amd/display/dc/basics/conversion.c
index 6767fab55c26..352e9afb85c6 100644
--- a/drivers/gpu/drm/amd/display/dc/basics/conversion.c
+++ b/drivers/gpu/drm/amd/display/dc/basics/conversion.c
@@ -100,3 +100,24 @@ void convert_float_matrix(
matrix[i] = (uint16_t)reg_value;
}
}
+
+static uint32_t find_gcd(uint32_t a, uint32_t b)
+{
+ uint32_t remainder = 0;
+ while (b != 0) {
+ remainder = a % b;
+ a = b;
+ b = remainder;
+ }
+ return a;
+}
+
+void reduce_fraction(uint32_t num, uint32_t den,
+ uint32_t *out_num, uint32_t *out_den)
+{
+ uint32_t gcd = 0;
+
+ gcd = find_gcd(num, den);
+ *out_num = num / gcd;
+ *out_den = den / gcd;
+}