diff options
| -rw-r--r-- | drivers/power/pmic/Makefile | 1 | ||||
| -rw-r--r-- | drivers/power/pmic/pmic_ltc3676.c | 32 | ||||
| -rw-r--r-- | include/power/ltc3676_pmic.h | 51 |
3 files changed, 84 insertions, 0 deletions
diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index 4129bda..920bbdc 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 0000000..9b874cb --- /dev/null +++ b/drivers/power/pmic/pmic_ltc3676.c @@ -0,0 +1,32 @@ +/* + * Copyright (C) 2014 Gateworks Corporation + * Tim Harvey <tharvey@gateworks.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <errno.h> +#include <i2c.h> +#include <power/pmic.h> +#include <power/ltc3676_pmic.h> + +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; +} diff --git a/include/power/ltc3676_pmic.h b/include/power/ltc3676_pmic.h new file mode 100644 index 0000000..dcaa985 --- /dev/null +++ b/include/power/ltc3676_pmic.h @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2014 Gateworks Corporation + * Tim Harvey <tharvey@gateworks.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __LTC3676_PMIC_H_ +#define __LTC3676_PMIC_H_ + +/* LTC3676 registers */ +enum { + LTC3676_BUCK1 = 0x01, + LTC3676_BUCK2 = 0x02, + LTC3676_BUCK3 = 0x03, + LTC3676_BUCK4 = 0x04, + LTC3676_LDOA = 0x05, + LTC3676_LDOB = 0x06, + LTC3676_SQD1 = 0x07, + LTC3676_SQD2 = 0x08, + LTC3676_CNTRL = 0x09, + LTC3676_DVB1A = 0x0A, + LTC3676_DVB1B = 0x0B, + LTC3676_DVB2A = 0x0C, + LTC3676_DVB2B = 0x0D, + LTC3676_DVB3A = 0x0E, + LTC3676_DVB3B = 0x0F, + LTC3676_DVB4A = 0x10, + LTC3676_DVB4B = 0x11, + LTC3676_MSKIRQ = 0x12, + LTC3676_MSKPG = 0x13, + LTC3676_USER = 0x14, + LTC3676_HRST = 0x1E, + LTC3676_CLIRQ = 0x1F, + LTC3676_IRQSTAT = 0x15, + LTC3676_PGSTATL = 0x16, + LTC3676_PGSTATR = 0x17, + LTC3676_NUM_OF_REGS = 0x20, +}; + +/* + * SW Configuration + */ + +#define LTC3676_DVB_MASK 0x1f +#define LTC3676_PGOOD_MASK (1<<5) +#define LTC3676_REF_SELA (0<<5) +#define LTC3676_REF_SELB (1<<5) + +int power_ltc3676_init(unsigned char bus); +#endif |