12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152 |
- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
- */
- #include <common.h>
- #include <clk-uclass.h>
- #include <dm.h>
- struct clk_fixed_rate {
- unsigned long fixed_rate;
- };
- #define to_clk_fixed_rate(dev) ((struct clk_fixed_rate *)dev_get_platdata(dev))
- static ulong clk_fixed_rate_get_rate(struct clk *clk)
- {
- if (clk->id != 0)
- return -EINVAL;
- return to_clk_fixed_rate(clk->dev)->fixed_rate;
- }
- const struct clk_ops clk_fixed_rate_ops = {
- .get_rate = clk_fixed_rate_get_rate,
- };
- static int clk_fixed_rate_ofdata_to_platdata(struct udevice *dev)
- {
- #if !CONFIG_IS_ENABLED(OF_PLATDATA)
- to_clk_fixed_rate(dev)->fixed_rate =
- dev_read_u32_default(dev, "clock-frequency", 0);
- #endif
- return 0;
- }
- static const struct udevice_id clk_fixed_rate_match[] = {
- {
- .compatible = "fixed-clock",
- },
- { /* sentinel */ }
- };
- U_BOOT_DRIVER(clk_fixed_rate) = {
- .name = "fixed_rate_clock",
- .id = UCLASS_CLK,
- .of_match = clk_fixed_rate_match,
- .ofdata_to_platdata = clk_fixed_rate_ofdata_to_platdata,
- .platdata_auto_alloc_size = sizeof(struct clk_fixed_rate),
- .ops = &clk_fixed_rate_ops,
- };
|