2 * Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack@eets.ch>
4 * SPDX-License-Identifier: GPL-2.0+
10 #include <power/pmic.h>
11 #include <power/regulator.h>
12 #include <power/tps65910_pmic.h>
14 DECLARE_GLOBAL_DATA_PTR
;
16 static const struct pmic_child_info pmic_children_info
[] = {
17 { .prefix
= "ldo_", .driver
= TPS65910_LDO_DRIVER
},
18 { .prefix
= "buck_", .driver
= TPS65910_BUCK_DRIVER
},
19 { .prefix
= "boost_", .driver
= TPS65910_BOOST_DRIVER
},
23 static int pmic_tps65910_reg_count(struct udevice
*dev
)
25 return TPS65910_NUM_REGS
;
28 static int pmic_tps65910_write(struct udevice
*dev
, uint reg
, const u8
*buffer
,
33 ret
= dm_i2c_write(dev
, reg
, buffer
, len
);
35 pr_err("%s write error on register %02x\n", dev
->name
, reg
);
40 static int pmic_tps65910_read(struct udevice
*dev
, uint reg
, u8
*buffer
,
45 ret
= dm_i2c_read(dev
, reg
, buffer
, len
);
47 pr_err("%s read error on register %02x\n", dev
->name
, reg
);
52 static int pmic_tps65910_bind(struct udevice
*dev
)
54 ofnode regulators_node
;
57 regulators_node
= dev_read_subnode(dev
, "regulators");
58 if (!ofnode_valid(regulators_node
)) {
59 debug("%s regulators subnode not found\n", dev
->name
);
63 children
= pmic_bind_children(dev
, regulators_node
, pmic_children_info
);
65 debug("%s has no children (regulators)\n", dev
->name
);
70 static int pmic_tps65910_probe(struct udevice
*dev
)
72 /* use I2C control interface instead of I2C smartreflex interface to
73 * access smartrefelex registers VDD1_OP_REG, VDD1_SR_REG, VDD2_OP_REG
76 return pmic_clrsetbits(dev
, TPS65910_REG_DEVICE_CTRL
, 0,
77 TPS65910_I2C_SEL_MASK
);
80 static struct dm_pmic_ops pmic_tps65910_ops
= {
81 .reg_count
= pmic_tps65910_reg_count
,
82 .read
= pmic_tps65910_read
,
83 .write
= pmic_tps65910_write
,
86 static const struct udevice_id pmic_tps65910_match
[] = {
87 { .compatible
= "ti,tps65910" },
91 U_BOOT_DRIVER(pmic_tps65910
) = {
92 .name
= "pmic_tps65910",
94 .of_match
= pmic_tps65910_match
,
95 .bind
= pmic_tps65910_bind
,
96 .probe
= pmic_tps65910_probe
,
97 .ops
= &pmic_tps65910_ops
,