mirror of
https://github.com/AsahiLinux/u-boot
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88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
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/*
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* (C) Copyright 2017 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/lp87565.h>
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#include <dm/device.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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{ .prefix = "buck", .driver = LP87565_BUCK_DRIVER },
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{ },
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};
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static int lp87565_write(struct udevice *dev, uint reg, const uint8_t *buff,
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int len)
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{
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int ret;
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ret = dm_i2c_write(dev, reg, buff, len);
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if (ret)
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error("write error to device: %p register: %#x!", dev, reg);
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return ret;
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}
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static int lp87565_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
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{
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int ret;
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ret = dm_i2c_read(dev, reg, buff, len);
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if (ret)
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error("read error from device: %p register: %#x!", dev, reg);
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return ret;
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}
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static int lp87565_bind(struct udevice *dev)
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{
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ofnode regulators_node;
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int children;
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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!", __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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printf("%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 lp87565_ops = {
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.read = lp87565_read,
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.write = lp87565_write,
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};
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static const struct udevice_id lp87565_ids[] = {
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{ .compatible = "ti,lp87565", .data = LP87565 },
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{ .compatible = "ti,lp87565-q1", .data = LP87565_Q1 },
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{ }
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};
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U_BOOT_DRIVER(pmic_lp87565) = {
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.name = "lp87565_pmic",
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.id = UCLASS_PMIC,
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.of_match = lp87565_ids,
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.bind = lp87565_bind,
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.ops = &lp87565_ops,
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};
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