mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 17:07:38 +00:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
112 lines
2.4 KiB
C
112 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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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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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <power/rk8xx_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 = "DCDC_REG", .driver = "rk8xx_buck"},
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{ .prefix = "LDO_REG", .driver = "rk8xx_ldo"},
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{ .prefix = "SWITCH_REG", .driver = "rk8xx_switch"},
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{ },
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};
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static int rk8xx_reg_count(struct udevice *dev)
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{
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return RK808_NUM_OF_REGS;
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}
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static int rk8xx_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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debug("write error to device: %p register: %#x!", dev, reg);
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return ret;
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}
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return 0;
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}
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static int rk8xx_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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debug("read error from device: %p register: %#x!", dev, reg);
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return ret;
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}
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return 0;
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}
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#if CONFIG_IS_ENABLED(PMIC_CHILDREN)
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static int rk8xx_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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#endif
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static int rk8xx_probe(struct udevice *dev)
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{
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struct rk8xx_priv *priv = dev_get_priv(dev);
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uint8_t msb, lsb;
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/* read Chip variant */
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rk8xx_read(dev, ID_MSB, &msb, 1);
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rk8xx_read(dev, ID_LSB, &lsb, 1);
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priv->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
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return 0;
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}
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static struct dm_pmic_ops rk8xx_ops = {
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.reg_count = rk8xx_reg_count,
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.read = rk8xx_read,
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.write = rk8xx_write,
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};
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static const struct udevice_id rk8xx_ids[] = {
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{ .compatible = "rockchip,rk808" },
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{ .compatible = "rockchip,rk818" },
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{ }
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};
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U_BOOT_DRIVER(pmic_rk8xx) = {
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.name = "rk8xx pmic",
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.id = UCLASS_PMIC,
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.of_match = rk8xx_ids,
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#if CONFIG_IS_ENABLED(PMIC_CHILDREN)
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.bind = rk8xx_bind,
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#endif
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.priv_auto_alloc_size = sizeof(struct rk8xx_priv),
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.probe = rk8xx_probe,
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.ops = &rk8xx_ops,
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};
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