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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2020 Sean Anderson <seanga2@gmail.com>
- */
- #include <common.h>
- #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,
- };
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