mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-08 20:26:17 +09:00
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>
108 lines
2.4 KiB
C
108 lines
2.4 KiB
C
/*
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* Copyright (c) 2016, NVIDIA CORPORATION.
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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 <power-domain.h>
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#include <power-domain-uclass.h>
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static inline struct power_domain_ops *power_domain_dev_ops(struct udevice *dev)
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{
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return (struct power_domain_ops *)dev->driver->ops;
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}
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static int power_domain_of_xlate_default(struct power_domain *power_domain,
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struct ofnode_phandle_args *args)
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{
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debug("%s(power_domain=%p)\n", __func__, power_domain);
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if (args->args_count != 1) {
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debug("Invalid args_count: %d\n", args->args_count);
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return -EINVAL;
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}
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power_domain->id = args->args[0];
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return 0;
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}
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int power_domain_get(struct udevice *dev, struct power_domain *power_domain)
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{
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struct ofnode_phandle_args args;
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int ret;
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struct udevice *dev_power_domain;
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struct power_domain_ops *ops;
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debug("%s(dev=%p, power_domain=%p)\n", __func__, dev, power_domain);
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ret = dev_read_phandle_with_args(dev, "power-domains",
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"#power-domain-cells", 0, 0, &args);
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if (ret) {
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debug("%s: dev_read_phandle_with_args failed: %d\n",
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__func__, ret);
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return ret;
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}
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ret = uclass_get_device_by_ofnode(UCLASS_POWER_DOMAIN, args.node,
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&dev_power_domain);
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if (ret) {
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debug("%s: uclass_get_device_by_ofnode failed: %d\n",
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__func__, ret);
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return ret;
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}
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ops = power_domain_dev_ops(dev_power_domain);
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power_domain->dev = dev_power_domain;
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if (ops->of_xlate)
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ret = ops->of_xlate(power_domain, &args);
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else
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ret = power_domain_of_xlate_default(power_domain, &args);
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if (ret) {
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debug("of_xlate() failed: %d\n", ret);
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return ret;
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}
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ret = ops->request(power_domain);
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if (ret) {
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debug("ops->request() failed: %d\n", ret);
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return ret;
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}
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return 0;
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}
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int power_domain_free(struct power_domain *power_domain)
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{
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struct power_domain_ops *ops = power_domain_dev_ops(power_domain->dev);
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debug("%s(power_domain=%p)\n", __func__, power_domain);
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return ops->free(power_domain);
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}
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int power_domain_on(struct power_domain *power_domain)
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{
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struct power_domain_ops *ops = power_domain_dev_ops(power_domain->dev);
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debug("%s(power_domain=%p)\n", __func__, power_domain);
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return ops->on(power_domain);
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}
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int power_domain_off(struct power_domain *power_domain)
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{
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struct power_domain_ops *ops = power_domain_dev_ops(power_domain->dev);
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debug("%s(power_domain=%p)\n", __func__, power_domain);
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return ops->off(power_domain);
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}
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UCLASS_DRIVER(power_domain) = {
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.id = UCLASS_POWER_DOMAIN,
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.name = "power_domain",
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};
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