diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2014-04-22 21:53:58 -0700 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2014-05-09 14:38:23 +0200 |
| commit | 5e2f01772a87ddd8592d5a53de85261b62faa7fb (patch) | |
| tree | 2332f55367598e3067c7f9a4451c40c2c4b9c366 /drivers | |
| parent | 17449272a01f2c23b890090ef7ebf720ec9cea32 (diff) | |
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 <tharvey@gateworks.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/pmic/Makefile | 1 | ||||
| -rw-r--r-- | drivers/power/pmic/pmic_ltc3676.c | 32 |
2 files changed, 33 insertions, 0 deletions
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 <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; +} |