reference_period_ps  645 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c 	unsigned int period_ps, reference_period_ps;
reference_period_ps  689 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c 		reference_period_ps = period_ps / 2;
reference_period_ps  692 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c 		reference_period_ps = period_ps;
reference_period_ps  698 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c 		sample_delay_factor = sample_delay_ps / reference_period_ps;