FMC2_BTR_CLKDIV
clk_period = FIELD_GET(FMC2_BTR_CLKDIV, btr) + 1;
clk_period = FIELD_GET(FMC2_BTR_CLKDIV, btr) + 1;
val = FIELD_PREP(FMC2_BTR_CLKDIV, val);
regmap_update_bits(ebi->regmap, FMC2_BTR(cs), FMC2_BTR_CLKDIV, val);
val = FIELD_PREP(FMC2_BTR_CLKDIV, val);
regmap_update_bits(ebi->regmap, FMC2_BTR(cs), FMC2_BTR_CLKDIV, val);