drm/radeon: lower the ref * post PLL maximum once more

Let's be conservative and use 100 here until we find something better. Bugs: https://bugzilla.kernel.org/show_bug.cgi?id=75241 Signed-off-by: Christian König <[email protected]>
berg · May 30, 2014 · 4b21ce1 · 4b21ce1
1 parent efb27e7
commit 4b21ce1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
@@ -862,7 +862,7 @@ static void avivo_get_fb_ref_div(unsigned nom, unsigned den, unsigned post_div,
 				 unsigned *fb_div, unsigned *ref_div)
 {
 	/* limit reference * post divider to a maximum */
-	ref_div_max = min(128 / post_div, ref_div_max);
+	ref_div_max = max(min(100 / post_div, ref_div_max), 1u);
 
 	/* get matching reference and feedback divider */
 	*ref_div = min(max(DIV_ROUND_CLOSEST(den, post_div), 1u), ref_div_max);