39 	u32 pat, val, before;  in reg_pattern_test()  local
45 		before = rd32(reg);  in reg_pattern_test()
53 			wr32(reg, before);  in reg_pattern_test()
56 		wr32(reg, before);  in reg_pattern_test()
65 	u32 val, before;  in reg_set_and_check()  local
67 	before = rd32(reg);  in reg_set_and_check()
75 		wr32(reg, before);  in reg_set_and_check()
78 	wr32(reg, before);  in reg_set_and_check()
86 	u32 value, before, after;  in igc_reg_test()  local
95 	before = rd32(IGC_STATUS);  in igc_reg_test()
96 	value = before & toggle;  in igc_reg_test()
107 	wr32(IGC_STATUS, before);  in igc_reg_test()