mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-16 16:16:16 +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>
101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
/*
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* (C) Copyright 2016 Texas Instruments Incorporated, <www.ti.com>
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* Keerthy <j-keerthy@ti.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <fdtdec.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 <power/pmic.h>
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#include <power/regulator.h>
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#include <power/palmas.h>
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#include <dm/device.h>
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static const struct pmic_child_info pmic_children_info[] = {
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{ .prefix = "ldo", .driver = PALMAS_LDO_DRIVER },
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{ .prefix = "smps", .driver = PALMAS_SMPS_DRIVER },
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{ },
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};
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static int palmas_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 palmas_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 palmas_bind(struct udevice *dev)
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{
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ofnode pmic_node = ofnode_null(), regulators_node;
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ofnode subnode;
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int children;
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dev_for_each_subnode(subnode, dev) {
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const char *name;
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char *temp;
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name = ofnode_get_name(subnode);
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temp = strstr(name, "pmic");
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if (temp) {
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pmic_node = subnode;
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break;
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}
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}
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if (!ofnode_valid(pmic_node)) {
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debug("%s: %s pmic subnode not found!", __func__, dev->name);
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return -ENXIO;
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}
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regulators_node = ofnode_find_subnode(pmic_node, "regulators");
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if (!ofnode_valid(regulators_node)) {
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debug("%s: %s reg subnode not found!", __func__, dev->name);
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return -ENXIO;
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}
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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 struct dm_pmic_ops palmas_ops = {
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.read = palmas_read,
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.write = palmas_write,
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};
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static const struct udevice_id palmas_ids[] = {
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{ .compatible = "ti,tps659038", .data = TPS659038 },
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{ .compatible = "ti,tps65917" , .data = TPS65917 },
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{ }
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};
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U_BOOT_DRIVER(pmic_palmas) = {
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.name = "palmas_pmic",
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.id = UCLASS_PMIC,
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.of_match = palmas_ids,
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.bind = palmas_bind,
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.ops = &palmas_ops,
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};
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