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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 commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2020 Gateworks Corporation
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*/
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#include <common.h>
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#include <errno.h>
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#include <dm.h>
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#include <i2c.h>
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#include <log.h>
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#include <power/pmic.h>
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#include <power/regulator.h>
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#include <power/mp5416.h>
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#include <asm/global_data.h>
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DECLARE_GLOBAL_DATA_PTR;
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static const struct pmic_child_info pmic_children_info[] = {
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/* buck */
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{ .prefix = "b", .driver = MP6416_REGULATOR_DRIVER },
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/* ldo */
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{ .prefix = "l", .driver = MP6416_REGULATOR_DRIVER },
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{ },
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};
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static int mp5416_reg_count(struct udevice *dev)
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{
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return MP5416_NUM_OF_REGS - 1;
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}
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static int mp5416_write(struct udevice *dev, uint reg, const uint8_t *buff,
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int len)
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{
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if (dm_i2c_write(dev, reg, buff, len)) {
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pr_err("write error to device: %p register: %#x!", dev, reg);
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return -EIO;
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}
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return 0;
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}
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static int mp5416_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
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{
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if (dm_i2c_read(dev, reg, buff, len)) {
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pr_err("read error from device: %p register: %#x!", dev, reg);
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return -EIO;
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}
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return 0;
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}
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static int mp5416_bind(struct udevice *dev)
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{
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int children;
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ofnode regulators_node;
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debug("%s %s\n", __func__, dev->name);
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regulators_node = dev_read_subnode(dev, "regulators");
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if (!ofnode_valid(regulators_node)) {
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debug("%s: %s regulators subnode not found!\n", __func__,
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dev->name);
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return -ENXIO;
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}
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debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
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children = pmic_bind_children(dev, regulators_node, pmic_children_info);
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if (!children)
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debug("%s: %s - no child found\n", __func__, dev->name);
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/* Always return success for this device */
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return 0;
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}
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static int mp5416_probe(struct udevice *dev)
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{
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debug("%s %s\n", __func__, dev->name);
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return 0;
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}
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static struct dm_pmic_ops mp5416_ops = {
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.reg_count = mp5416_reg_count,
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.read = mp5416_read,
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.write = mp5416_write,
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};
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static const struct udevice_id mp5416_ids[] = {
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{ .compatible = "mps,mp5416", },
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{ }
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};
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U_BOOT_DRIVER(pmic_mp5416) = {
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.name = "mp5416 pmic",
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.id = UCLASS_PMIC,
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.of_match = mp5416_ids,
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.bind = mp5416_bind,
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.probe = mp5416_probe,
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.ops = &mp5416_ops,
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};
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