1 /* 2 * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com> 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 */ 10 11 #include <linux/clk-provider.h> 12 #include <linux/clkdev.h> 13 #include <linux/clk/at91_pmc.h> 14 #include <linux/of.h> 15 #include <linux/mfd/syscon.h> 16 #include <linux/regmap.h> 17 18 #include <asm/proc-fns.h> 19 20 #include "pmc.h" 21 22 int of_at91_get_clk_range(struct device_node *np, const char *propname, 23 struct clk_range *range) 24 { 25 u32 min, max; 26 int ret; 27 28 ret = of_property_read_u32_index(np, propname, 0, &min); 29 if (ret) 30 return ret; 31 32 ret = of_property_read_u32_index(np, propname, 1, &max); 33 if (ret) 34 return ret; 35 36 if (range) { 37 range->min = min; 38 range->max = max; 39 } 40 41 return 0; 42 } 43 EXPORT_SYMBOL_GPL(of_at91_get_clk_range); 44