mirror of
https://github.com/AsahiLinux/u-boot
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1e94b46f73
This old patch was marked as deferred. Bring it back to life, to continue towards the removal of common.h Move this out of the common header and include it only where needed. Signed-off-by: Simon Glass <sjg@chromium.org>
89 lines
2 KiB
C
89 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2014-2015 Samsung Electronics
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* Przemyslaw Marczak <p.marczak@samsung.com>
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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 <log.h>
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#include <linux/printk.h>
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#include <power/pmic.h>
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#include <power/regulator.h>
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#include <power/max77686_pmic.h>
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static const struct pmic_child_info pmic_children_info[] = {
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{ .prefix = "LDO", .driver = MAX77686_LDO_DRIVER },
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{ .prefix = "BUCK", .driver = MAX77686_BUCK_DRIVER },
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{ },
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};
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static int max77686_reg_count(struct udevice *dev)
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{
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return MAX77686_NUM_OF_REGS;
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}
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static int max77686_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!\n", 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 max77686_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!\n", 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 max77686_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, "voltage-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 struct dm_pmic_ops max77686_ops = {
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.reg_count = max77686_reg_count,
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.read = max77686_read,
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.write = max77686_write,
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};
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static const struct udevice_id max77686_ids[] = {
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{ .compatible = "maxim,max77686" },
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{ }
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};
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U_BOOT_DRIVER(pmic_max77686) = {
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.name = "max77686_pmic",
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.id = UCLASS_PMIC,
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.of_match = max77686_ids,
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.bind = max77686_bind,
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.ops = &max77686_ops,
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};
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