drm/radeon/kms: fix legacy get_engine/memory clock

Fix a bad shift in the post div.

Should fix fdo bug 26145

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/radeon_clocks.c b/drivers/gpu/drm/radeon/radeon_clocks.c
index 812f24d..73c4405 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_clocks.c
+++ b/drivers/gpu/drm/radeon/radeon_clocks.c
@@ -56,7 +56,7 @@ uint32_t radeon_legacy_get_engine_clock(struct radeon_device *rdev)
        else if (post_div == 3)
                sclk >>= 2;
        else if (post_div == 4)
-               sclk >>= 4;
+               sclk >>= 3;
 
        return sclk;
 }
@@ -86,7 +86,7 @@ uint32_t radeon_legacy_get_memory_clock(struct radeon_device *rdev)
        else if (post_div == 3)
                mclk >>= 2;
        else if (post_div == 4)
-               mclk >>= 4;
+               mclk >>= 3;
 
        return mclk;
 }