From 5e2f01772a87ddd8592d5a53de85261b62faa7fb Mon Sep 17 00:00:00 2001 From: Tim Harvey Date: Tue, 22 Apr 2014 21:53:58 -0700 Subject: power: Add support for LTC3676 PMIC The LTC3676 PMIC includes four DC/DC converters, and three 300mA LDO Regulators (two Adjustable). The DC/DC converters are adjustable based on a resistor devider (board-specific). This adds support for the LTC3676 by creating a namespace unique init function that uses the PMIC API to allocate a pmic and defines the registers. Signed-off-by: Tim Harvey Acked-by: Stefano Babic --- drivers/power/pmic/Makefile | 1 + drivers/power/pmic/pmic_ltc3676.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) create mode 100644 drivers/power/pmic/pmic_ltc3676.c (limited to 'drivers/power/pmic') diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index 4129bdabfb..920bbdce6e 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -5,6 +5,7 @@ # SPDX-License-Identifier: GPL-2.0+ # +obj-$(CONFIG_POWER_LTC3676) += pmic_ltc3676.o obj-$(CONFIG_POWER_MAX8998) += pmic_max8998.o obj-$(CONFIG_POWER_MAX8997) += pmic_max8997.o obj-$(CONFIG_POWER_MUIC_MAX8997) += muic_max8997.o diff --git a/drivers/power/pmic/pmic_ltc3676.c b/drivers/power/pmic/pmic_ltc3676.c new file mode 100644 index 0000000000..9b874cb07c --- /dev/null +++ b/drivers/power/pmic/pmic_ltc3676.c @@ -0,0 +1,32 @@ +/* + * Copyright (C) 2014 Gateworks Corporation + * Tim Harvey + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include + +int power_ltc3676_init(unsigned char bus) +{ + static const char name[] = "LTC3676_PMIC"; + struct pmic *p = pmic_alloc(); + + if (!p) { + printf("%s: POWER allocation error!\n", __func__); + return -ENOMEM; + } + + p->name = name; + p->interface = PMIC_I2C; + p->number_of_regs = LTC3676_NUM_OF_REGS; + p->hw.i2c.addr = CONFIG_POWER_LTC3676_I2C_ADDR; + p->hw.i2c.tx_num = 1; + p->bus = bus; + + return 0; +} -- cgit v1.2.1