mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
7da7ff5491
The PFUZE3000 uses registers addresses up to 0xff. The DM pfuze100 driver supports both pfuze100 and pfuze3000. Allow it to use the device type to return the correct number of registers. Also rename the too generic PMIC_NUM_OF_REGS enumeration value for pfuze3000 to match the other "PFUZE3000_" prefixed enumerations and the pfuze100 enumeration value PFUZE100_NUM_OF_REGS. Cc: Peng Fan <Peng.Fan@freescale.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Trent Piepho <tpiepho@impinj.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2015 Freescale Semiconductor, Inc
|
|
* Peng Fan <Peng.Fan@freescale.com>
|
|
*/
|
|
|
|
#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>
|
|
#include <power/pfuze3000_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 dev->driver_data == PFUZE3000 ? PFUZE3000_NUM_OF_REGS : 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,
|
|
};
|