add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/drivers/gpu/drm/radeon/cypress_dpm.c
..
..
@@ -559,8 +559,12 @@
559
559
 						     ASIC_INTERNAL_MEMORY_SS, vco_freq)) {
560
560
 			u32 reference_clock = rdev->clock.mpll.reference_freq;
561
561
 			u32 decoded_ref = rv740_get_decoded_reference_divider(dividers.ref_div);
562
-			u32 clk_s = reference_clock * 5 / (decoded_ref * ss.rate);
563
-			u32 clk_v = ss.percentage *
562
+			u32 clk_s, clk_v;
563
+
564
+			if (!decoded_ref)
565
+				return -EINVAL;
566
+			clk_s = reference_clock * 5 / (decoded_ref * ss.rate);
567
+			clk_v = ss.percentage *
564
568
 				(0x4000 * dividers.whole_fb_div + 0x800 * dividers.frac_fb_div) / (clk_s * 625);
565
569
 
566
570
 			mpll_ss1 &= ~CLKV_MASK;