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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
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*/
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#include <common.h>
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#include <clk-uclass.h>
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#include <dm.h>
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#include <linux/clk-provider.h>
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static ulong clk_fixed_rate_get_rate(struct clk *clk)
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{
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return to_clk_fixed_rate(clk->dev)->fixed_rate;
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}
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/* avoid clk_enable() return -ENOSYS */
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static int dummy_enable(struct clk *clk)
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{
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return 0;
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}
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const struct clk_ops clk_fixed_rate_ops = {
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.get_rate = clk_fixed_rate_get_rate,
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.enable = dummy_enable,
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};
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static int clk_fixed_rate_ofdata_to_platdata(struct udevice *dev)
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{
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struct clk *clk = &to_clk_fixed_rate(dev)->clk;
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#if !CONFIG_IS_ENABLED(OF_PLATDATA)
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to_clk_fixed_rate(dev)->fixed_rate =
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dev_read_u32_default(dev, "clock-frequency", 0);
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#endif
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/* Make fixed rate clock accessible from higher level struct clk */
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dev->uclass_priv = clk;
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clk->dev = dev;
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clk->enable_count = 0;
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return 0;
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}
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static const struct udevice_id clk_fixed_rate_match[] = {
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{
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.compatible = "fixed-clock",
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},
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{ /* sentinel */ }
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};
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U_BOOT_DRIVER(fixed_clock) = {
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.name = "fixed_clock",
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.id = UCLASS_CLK,
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.of_match = clk_fixed_rate_match,
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.ofdata_to_platdata = clk_fixed_rate_ofdata_to_platdata,
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.platdata_auto = sizeof(struct clk_fixed_rate),
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.ops = &clk_fixed_rate_ops,
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.flags = DM_FLAG_PRE_RELOC,
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};
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