2 * Copyright (C) 2015 Google, Inc
4 * SPDX-License-Identifier: GPL-2.0+
12 #include <power/pmic.h>
13 #include <power/regulator.h>
14 #include <power/s5m8767.h>
16 DECLARE_GLOBAL_DATA_PTR
;
18 static const struct pmic_child_info pmic_children_info
[] = {
19 { .prefix
= "LDO", .driver
= S5M8767_LDO_DRIVER
},
20 { .prefix
= "BUCK", .driver
= S5M8767_BUCK_DRIVER
},
24 static int s5m8767_reg_count(struct udevice
*dev
)
26 return S5M8767_NUM_OF_REGS
;
29 static int s5m8767_write(struct udevice
*dev
, uint reg
, const uint8_t *buff
,
32 if (dm_i2c_write(dev
, reg
, buff
, len
)) {
33 error("write error to device: %p register: %#x!", dev
, reg
);
40 static int s5m8767_read(struct udevice
*dev
, uint reg
, uint8_t *buff
, int len
)
42 if (dm_i2c_read(dev
, reg
, buff
, len
)) {
43 error("read error from device: %p register: %#x!", dev
, reg
);
50 int s5m8767_enable_32khz_cp(struct udevice
*dev
)
52 return pmic_clrsetbits(dev
, S5M8767_EN32KHZ_CP
, 0, 1 << 1);
55 static int s5m8767_bind(struct udevice
*dev
)
58 const void *blob
= gd
->fdt_blob
;
61 node
= fdt_subnode_offset(blob
, dev_of_offset(dev
), "regulators");
63 debug("%s: %s regulators subnode not found!", __func__
,
68 debug("%s: '%s' - found regulators subnode\n", __func__
, dev
->name
);
70 children
= pmic_bind_children(dev
, node
, pmic_children_info
);
72 debug("%s: %s - no child found\n", __func__
, dev
->name
);
74 /* Always return success for this device */
78 static struct dm_pmic_ops s5m8767_ops
= {
79 .reg_count
= s5m8767_reg_count
,
81 .write
= s5m8767_write
,
84 static const struct udevice_id s5m8767_ids
[] = {
85 { .compatible
= "samsung,s5m8767-pmic" },
89 U_BOOT_DRIVER(pmic_s5m8767
) = {
90 .name
= "s5m8767_pmic",
92 .of_match
= s5m8767_ids
,