mirror of
https://github.com/brain-hackers/u-boot-brain
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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>
89 lines
1.9 KiB
C
89 lines
1.9 KiB
C
/*
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* Copyright (C) 2015 Samsung Electronics
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* Przemyslaw Marczak <p.marczak@samsung.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/s2mps11.h>
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static const struct pmic_child_info pmic_children_info[] = {
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{ .prefix = S2MPS11_OF_LDO_PREFIX, .driver = S2MPS11_LDO_DRIVER },
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{ .prefix = S2MPS11_OF_BUCK_PREFIX, .driver = S2MPS11_BUCK_DRIVER },
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{ },
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};
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static int s2mps11_reg_count(struct udevice *dev)
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{
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return S2MPS11_REG_COUNT;
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}
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static int s2mps11_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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pr_err("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 s2mps11_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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pr_err("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 s2mps11_probe(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!", __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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return 0;
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}
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static struct dm_pmic_ops s2mps11_ops = {
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.reg_count = s2mps11_reg_count,
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.read = s2mps11_read,
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.write = s2mps11_write,
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};
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static const struct udevice_id s2mps11_ids[] = {
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{ .compatible = "samsung,s2mps11-pmic" },
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{ }
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};
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U_BOOT_DRIVER(pmic_s2mps11) = {
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.name = "s2mps11_pmic",
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.id = UCLASS_PMIC,
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.of_match = s2mps11_ids,
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.ops = &s2mps11_ops,
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.probe = s2mps11_probe,
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};
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