55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
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/*******************************************************************************
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*
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* File name : clock-utils.h
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* Description : Utility functions not related to the Low Level API
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*
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* COPYRIGHT (C) 2010 STMicroelectronics - All Rights Reserved
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* This file is under the GPL 2 License.
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*
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******************************************************************************/
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#include <linux/clkdev.h>
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static inline int clk_register_table(struct clk *clks, int num, int enable)
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{
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int i;
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for (i = 0; i < num; i++) {
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struct clk *clk = &clks[i];
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int ret;
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struct clk_lookup *cl;
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/*
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* Some devices have clockgen outputs which are unused.
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* In this case the LLA may still have an entry in its
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* tables for that clock, and try and register that clock,
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* so we need some way to skip it.
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*/
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if (!clk->name)
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continue;
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ret = clk_register(clk);
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if (ret)
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return ret;
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/*
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* We must ignore the result of clk_enables as some of
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* the LLA enables functions claim to support an
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* enables function, but then fail if you call it!
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*/
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if (enable) {
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ret = clk_enable(clk);
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if (ret)
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pr_warning("Failed to enable clk %s, "
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"ignoring\n", clk->name);
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}
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cl = clkdev_alloc(clk, clk->name, NULL);
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if (!cl)
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return -ENOMEM;
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clkdev_add(cl);
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}
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return 0;
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}
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