mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-31 23:33:44 +09:00
d024236e5a
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
86 lines
1.9 KiB
C
86 lines
1.9 KiB
C
/*
|
|
* (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>
|
|
|
|
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,
|
|
};
|