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>
87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
/*
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* Copyright (C) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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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 <dm.h>
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#include <errno.h>
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#include <fdtdec.h>
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#include <linux/libfdt.h>
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#include <power/act8846_pmic.h>
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#include <power/pmic.h>
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static const struct pmic_child_info pmic_children_info[] = {
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{ .prefix = "REG", .driver = "act8846_reg"},
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{ },
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};
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static int act8846_reg_count(struct udevice *dev)
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{
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return ACT8846_NUM_OF_REGS;
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}
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static int act8846_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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debug("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 act8846_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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debug("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 act8846_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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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 act8846_ops = {
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.reg_count = act8846_reg_count,
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.read = act8846_read,
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.write = act8846_write,
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};
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static const struct udevice_id act8846_ids[] = {
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{ .compatible = "active-semi,act8846" },
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{ }
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};
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U_BOOT_DRIVER(pmic_act8846) = {
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.name = "act8846 pmic",
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.id = UCLASS_PMIC,
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.of_match = act8846_ids,
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.bind = act8846_bind,
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.ops = &act8846_ops,
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};
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