mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-10-01 03:42:17 +00:00
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>
92 lines
2.1 KiB
C
92 lines
2.1 KiB
C
/*
|
|
* Copyright (C) 2015 Freescale Semiconductor, Inc
|
|
* Peng Fan <Peng.Fan@freescale.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/pfuze100_pmic.h>
|
|
|
|
static const struct pmic_child_info pmic_children_info[] = {
|
|
/* sw[x], swbst */
|
|
{ .prefix = "s", .driver = PFUZE100_REGULATOR_DRIVER },
|
|
/* vgen[x], vsnvs, vcc, v33, vcc_sd */
|
|
{ .prefix = "v", .driver = PFUZE100_REGULATOR_DRIVER },
|
|
{ },
|
|
};
|
|
|
|
static int pfuze100_reg_count(struct udevice *dev)
|
|
{
|
|
return PFUZE100_NUM_OF_REGS;
|
|
}
|
|
|
|
static int pfuze100_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!", dev, reg);
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pfuze100_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!", dev, reg);
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pfuze100_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)
|
|
debug("%s: %s - no child found\n", __func__, dev->name);
|
|
|
|
/* Always return success for this device */
|
|
return 0;
|
|
}
|
|
|
|
static struct dm_pmic_ops pfuze100_ops = {
|
|
.reg_count = pfuze100_reg_count,
|
|
.read = pfuze100_read,
|
|
.write = pfuze100_write,
|
|
};
|
|
|
|
static const struct udevice_id pfuze100_ids[] = {
|
|
{ .compatible = "fsl,pfuze100", .data = PFUZE100, },
|
|
{ .compatible = "fsl,pfuze200", .data = PFUZE200, },
|
|
{ .compatible = "fsl,pfuze3000", .data = PFUZE3000, },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(pmic_pfuze100) = {
|
|
.name = "pfuze100 pmic",
|
|
.id = UCLASS_PMIC,
|
|
.of_match = pfuze100_ids,
|
|
.bind = pfuze100_bind,
|
|
.ops = &pfuze100_ops,
|
|
};
|