mirror of
https://github.com/AsahiLinux/u-boot
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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>
92 lines
1.9 KiB
C
92 lines
1.9 KiB
C
/*
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* Copyright (C) 2015 Google, Inc
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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/s5m8767.h>
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static const struct pmic_child_info pmic_children_info[] = {
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{ .prefix = "LDO", .driver = S5M8767_LDO_DRIVER },
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{ .prefix = "BUCK", .driver = S5M8767_BUCK_DRIVER },
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{ },
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};
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static int s5m8767_reg_count(struct udevice *dev)
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{
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return S5M8767_NUM_OF_REGS;
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}
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static int s5m8767_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 s5m8767_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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int s5m8767_enable_32khz_cp(struct udevice *dev)
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{
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return pmic_clrsetbits(dev, S5M8767_EN32KHZ_CP, 0, 1 << 1);
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}
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static int s5m8767_bind(struct udevice *dev)
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{
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int children;
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ofnode node;
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node = dev_read_subnode(dev, "regulators");
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if (!ofnode_valid(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, 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 s5m8767_ops = {
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.reg_count = s5m8767_reg_count,
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.read = s5m8767_read,
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.write = s5m8767_write,
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};
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static const struct udevice_id s5m8767_ids[] = {
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{ .compatible = "samsung,s5m8767-pmic" },
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{ }
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};
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U_BOOT_DRIVER(pmic_s5m8767) = {
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.name = "s5m8767_pmic",
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.id = UCLASS_PMIC,
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.of_match = s5m8767_ids,
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.bind = s5m8767_bind,
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.ops = &s5m8767_ops,
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};
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