mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-09-20 13:21:32 +02:00
d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2014-2015 Samsung Electronics
|
|
* Przemyslaw Marczak <p.marczak@samsung.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <fdtdec.h>
|
|
#include <errno.h>
|
|
#include <dm.h>
|
|
#include <i2c.h>
|
|
#include <log.h>
|
|
#include <linux/printk.h>
|
|
#include <power/pmic.h>
|
|
#include <power/regulator.h>
|
|
#include <power/max77686_pmic.h>
|
|
|
|
static const struct pmic_child_info pmic_children_info[] = {
|
|
{ .prefix = "LDO", .driver = MAX77686_LDO_DRIVER },
|
|
{ .prefix = "BUCK", .driver = MAX77686_BUCK_DRIVER },
|
|
{ },
|
|
};
|
|
|
|
static int max77686_reg_count(struct udevice *dev)
|
|
{
|
|
return MAX77686_NUM_OF_REGS;
|
|
}
|
|
|
|
static int max77686_write(struct udevice *dev, uint reg, const uint8_t *buff,
|
|
int len)
|
|
{
|
|
if (dm_i2c_write(dev, reg, buff, len)) {
|
|
pr_err("write error to device: %p register: %#x!\n", dev, reg);
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int max77686_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
|
|
{
|
|
if (dm_i2c_read(dev, reg, buff, len)) {
|
|
pr_err("read error from device: %p register: %#x!\n", dev, reg);
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int max77686_bind(struct udevice *dev)
|
|
{
|
|
ofnode regulators_node;
|
|
int children;
|
|
|
|
regulators_node = dev_read_subnode(dev, "voltage-regulators");
|
|
if (!ofnode_valid(regulators_node)) {
|
|
debug("%s: %s regulators subnode not found!\n", __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)
|
|
debug("%s: %s - no child found\n", __func__, dev->name);
|
|
|
|
/* Always return success for this device */
|
|
return 0;
|
|
}
|
|
|
|
static struct dm_pmic_ops max77686_ops = {
|
|
.reg_count = max77686_reg_count,
|
|
.read = max77686_read,
|
|
.write = max77686_write,
|
|
};
|
|
|
|
static const struct udevice_id max77686_ids[] = {
|
|
{ .compatible = "maxim,max77686" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(pmic_max77686) = {
|
|
.name = "max77686_pmic",
|
|
.id = UCLASS_PMIC,
|
|
.of_match = max77686_ids,
|
|
.bind = max77686_bind,
|
|
.ops = &max77686_ops,
|
|
};
|