u-boot/drivers/core/simple-pm-bus.c
Tom Rini 03de305ec4 Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"
As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-20 13:35:03 -06:00

55 lines
1 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2020 Sean Anderson <seanga2@gmail.com>
*/
#include <clk.h>
#include <dm.h>
/*
* Power domains are taken care of by driver_probe, so we just have to enable
* clocks
*/
static int simple_pm_bus_probe(struct udevice *dev)
{
int ret;
struct clk_bulk *bulk = dev_get_priv(dev);
ret = clk_get_bulk(dev, bulk);
if (ret)
return ret;
ret = clk_enable_bulk(bulk);
if (ret && ret != -ENOSYS) {
clk_release_bulk(bulk);
return ret;
}
return 0;
}
static int simple_pm_bus_remove(struct udevice *dev)
{
int ret;
struct clk_bulk *bulk = dev_get_priv(dev);
ret = clk_release_bulk(bulk);
if (ret && ret != -ENOSYS)
return ret;
else
return 0;
}
static const struct udevice_id simple_pm_bus_ids[] = {
{ .compatible = "simple-pm-bus" },
{ }
};
U_BOOT_DRIVER(simple_pm_bus_drv) = {
.name = "simple_pm_bus",
.id = UCLASS_SIMPLE_BUS,
.of_match = simple_pm_bus_ids,
.probe = simple_pm_bus_probe,
.remove = simple_pm_bus_remove,
.priv_auto = sizeof(struct clk_bulk),
.flags = DM_FLAG_PRE_RELOC,
};