lp87565.c
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/*
* (C) Copyright 2017 Texas Instruments Incorporated, <www.ti.com>
* Keerthy <j-keerthy@ti.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <fdtdec.h>
#include <errno.h>
#include <dm.h>
#include <i2c.h>
#include <power/pmic.h>
#include <power/regulator.h>
#include <power/lp87565.h>
#include <dm/device.h>
DECLARE_GLOBAL_DATA_PTR;
static const struct pmic_child_info pmic_children_info[] = {
{ .prefix = "buck", .driver = LP87565_BUCK_DRIVER },
{ },
};
static int lp87565_write(struct udevice *dev, uint reg, const uint8_t *buff,
int len)
{
int ret;
ret = dm_i2c_write(dev, reg, buff, len);
if (ret)
pr_err("write error to device: %p register: %#x!", dev, reg);
return ret;
}
static int lp87565_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
{
int ret;
ret = dm_i2c_read(dev, reg, buff, len);
if (ret)
pr_err("read error from device: %p register: %#x!", dev, reg);
return ret;
}
static int lp87565_bind(struct udevice *dev)
{
ofnode regulators_node;
int children;
regulators_node = dev_read_subnode(dev, "regulators");
if (!ofnode_valid(regulators_node)) {
debug("%s: %s regulators subnode not found!", __func__,
dev->name);
return -ENXIO;
}
debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
children = pmic_bind_children(dev, regulators_node, pmic_children_info);
if (!children)
printf("%s: %s - no child found\n", __func__, dev->name);
/* Always return success for this device */
return 0;
}
static struct dm_pmic_ops lp87565_ops = {
.read = lp87565_read,
.write = lp87565_write,
};
static const struct udevice_id lp87565_ids[] = {
{ .compatible = "ti,lp87565", .data = LP87565 },
{ .compatible = "ti,lp87565-q1", .data = LP87565_Q1 },
{ }
};
U_BOOT_DRIVER(pmic_lp87565) = {
.name = "lp87565_pmic",
.id = UCLASS_PMIC,
.of_match = lp87565_ids,
.bind = lp87565_bind,
.ops = &lp87565_ops,
};