1/* 2 * linux/arch/arm/plat-versatile/clock.c 3 * 4 * Copyright (C) 2004 ARM Limited. 5 * Written by Deep Blue Solutions Limited. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11#include <linux/module.h> 12#include <linux/kernel.h> 13#include <linux/errno.h> 14#include <linux/clk.h> 15#include <linux/mutex.h> 16 17#include <asm/hardware/icst.h> 18 19#include <mach/clkdev.h> 20 21int clk_enable(struct clk *clk) 22{ 23 return 0; 24} 25EXPORT_SYMBOL(clk_enable); 26 27void clk_disable(struct clk *clk) 28{ 29} 30EXPORT_SYMBOL(clk_disable); 31 32unsigned long clk_get_rate(struct clk *clk) 33{ 34 return clk->rate; 35} 36EXPORT_SYMBOL(clk_get_rate); 37 38long clk_round_rate(struct clk *clk, unsigned long rate) 39{ 40 long ret = -EIO; 41 if (clk->ops && clk->ops->round) 42 ret = clk->ops->round(clk, rate); 43 return ret; 44} 45EXPORT_SYMBOL(clk_round_rate); 46 47int clk_set_rate(struct clk *clk, unsigned long rate) 48{ 49 int ret = -EIO; 50 if (clk->ops && clk->ops->set) 51 ret = clk->ops->set(clk, rate); 52 return ret; 53} 54EXPORT_SYMBOL(clk_set_rate); 55 56long icst_clk_round(struct clk *clk, unsigned long rate) 57{ 58 struct icst_vco vco; 59 vco = icst_hz_to_vco(clk->params, rate); 60 return icst_hz(clk->params, vco); 61} 62EXPORT_SYMBOL(icst_clk_round); 63 64int icst_clk_set(struct clk *clk, unsigned long rate) 65{ 66 struct icst_vco vco; 67 68 vco = icst_hz_to_vco(clk->params, rate); 69 clk->rate = icst_hz(clk->params, vco); 70 clk->ops->setvco(clk, vco); 71 72 return 0; 73} 74EXPORT_SYMBOL(icst_clk_set); 75