buck4 202 drivers/regulator/88pm800-regulator.c PM800_BUCK(buck4, BUCK4, BUCK_ENA, 3, 1200000, buck2_5_volt_range, 0x73), buck4 333 drivers/regulator/da9052-regulator.c DA9052_DCDC(BUCK4, buck4, 50, 1800, 3600, 5, 6, 0), buck4 350 drivers/regulator/da9052-regulator.c DA9052_DCDC(BUCK4, buck4, 25, 950, 2525, 6, 6, 0), buck4 373 drivers/regulator/stpmic1_regulator.c .desc = REG_BUCK(BUCK4, buck4), buck4 524 drivers/regulator/stpmic1_regulator.c MATCH(buck4, BUCK4),