mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-22 03:03:05 +00:00
105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2016, NVIDIA CORPORATION.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <log.h>
|
|
#include <malloc.h>
|
|
#include <power-domain-uclass.h>
|
|
#include <asm/io.h>
|
|
#include <asm/power-domain.h>
|
|
|
|
#define SANDBOX_POWER_DOMAINS 3
|
|
|
|
struct sandbox_power_domain {
|
|
bool on[SANDBOX_POWER_DOMAINS];
|
|
};
|
|
|
|
static int sandbox_power_domain_request(struct power_domain *power_domain)
|
|
{
|
|
debug("%s(power_domain=%p)\n", __func__, power_domain);
|
|
|
|
if (power_domain->id >= SANDBOX_POWER_DOMAINS)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_power_domain_free(struct power_domain *power_domain)
|
|
{
|
|
debug("%s(power_domain=%p)\n", __func__, power_domain);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_power_domain_on(struct power_domain *power_domain)
|
|
{
|
|
struct sandbox_power_domain *sbr = dev_get_priv(power_domain->dev);
|
|
|
|
debug("%s(power_domain=%p)\n", __func__, power_domain);
|
|
|
|
sbr->on[power_domain->id] = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_power_domain_off(struct power_domain *power_domain)
|
|
{
|
|
struct sandbox_power_domain *sbr = dev_get_priv(power_domain->dev);
|
|
|
|
debug("%s(power_domain=%p)\n", __func__, power_domain);
|
|
|
|
sbr->on[power_domain->id] = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_power_domain_bind(struct udevice *dev)
|
|
{
|
|
debug("%s(dev=%p)\n", __func__, dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_power_domain_probe(struct udevice *dev)
|
|
{
|
|
debug("%s(dev=%p)\n", __func__, dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id sandbox_power_domain_ids[] = {
|
|
{ .compatible = "sandbox,power-domain" },
|
|
{ }
|
|
};
|
|
|
|
struct power_domain_ops sandbox_power_domain_ops = {
|
|
.request = sandbox_power_domain_request,
|
|
.rfree = sandbox_power_domain_free,
|
|
.on = sandbox_power_domain_on,
|
|
.off = sandbox_power_domain_off,
|
|
};
|
|
|
|
U_BOOT_DRIVER(sandbox_power_domain) = {
|
|
.name = "sandbox_power_domain",
|
|
.id = UCLASS_POWER_DOMAIN,
|
|
.of_match = sandbox_power_domain_ids,
|
|
.bind = sandbox_power_domain_bind,
|
|
.probe = sandbox_power_domain_probe,
|
|
.priv_auto_alloc_size = sizeof(struct sandbox_power_domain),
|
|
.ops = &sandbox_power_domain_ops,
|
|
};
|
|
|
|
int sandbox_power_domain_query(struct udevice *dev, unsigned long id)
|
|
{
|
|
struct sandbox_power_domain *sbr = dev_get_priv(dev);
|
|
|
|
debug("%s(dev=%p, id=%ld)\n", __func__, dev, id);
|
|
|
|
if (id >= SANDBOX_POWER_DOMAINS)
|
|
return -EINVAL;
|
|
|
|
return sbr->on[id];
|
|
}
|