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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>
96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/*
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* Copyright (C) EETS GmbH, 2017, Felix Brack <f.brack@eets.ch>
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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 <i2c.h>
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#include <power/pmic.h>
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#include <power/regulator.h>
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#include <power/tps65910_pmic.h>
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static const struct pmic_child_info pmic_children_info[] = {
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{ .prefix = "ldo_", .driver = TPS65910_LDO_DRIVER },
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{ .prefix = "buck_", .driver = TPS65910_BUCK_DRIVER },
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{ .prefix = "boost_", .driver = TPS65910_BOOST_DRIVER },
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{ },
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};
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static int pmic_tps65910_reg_count(struct udevice *dev)
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{
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return TPS65910_NUM_REGS;
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}
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static int pmic_tps65910_write(struct udevice *dev, uint reg, const u8 *buffer,
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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, buffer, len);
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if (ret)
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pr_err("%s write error on register %02x\n", dev->name, reg);
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return ret;
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}
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static int pmic_tps65910_read(struct udevice *dev, uint reg, u8 *buffer,
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int len)
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{
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int ret;
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ret = dm_i2c_read(dev, reg, buffer, len);
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if (ret)
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pr_err("%s read error on register %02x\n", dev->name, reg);
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return ret;
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}
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static int pmic_tps65910_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 regulators subnode not found\n", dev->name);
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return -EINVAL;
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}
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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 has no children (regulators)\n", dev->name);
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return 0;
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}
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static int pmic_tps65910_probe(struct udevice *dev)
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{
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/* use I2C control interface instead of I2C smartreflex interface to
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* access smartrefelex registers VDD1_OP_REG, VDD1_SR_REG, VDD2_OP_REG
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* and VDD2_SR_REG
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*/
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return pmic_clrsetbits(dev, TPS65910_REG_DEVICE_CTRL, 0,
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TPS65910_I2C_SEL_MASK);
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}
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static struct dm_pmic_ops pmic_tps65910_ops = {
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.reg_count = pmic_tps65910_reg_count,
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.read = pmic_tps65910_read,
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.write = pmic_tps65910_write,
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};
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static const struct udevice_id pmic_tps65910_match[] = {
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{ .compatible = "ti,tps65910" },
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{ /* sentinel */ }
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};
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U_BOOT_DRIVER(pmic_tps65910) = {
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.name = "pmic_tps65910",
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.id = UCLASS_PMIC,
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.of_match = pmic_tps65910_match,
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.bind = pmic_tps65910_bind,
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.probe = pmic_tps65910_probe,
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.ops = &pmic_tps65910_ops,
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};
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