projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| e47bb515 | 1 | /* |
| 3572b33e | 2 | * SH-Mobile Clock Framework |
| e47bb515 MD |
3 | * |
| 4 | * Copyright (C) 2010 Magnus Damm | |
| 5 | * | |
| 3572b33e MD |
6 | * Used together with arch/arm/common/clkdev.c and drivers/sh/clk.c. |
| 7 | * | |
| e47bb515 MD |
8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by | |
| 10 | * the Free Software Foundation; version 2 of the License. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 20 | * | |
| 21 | */ | |
| 22 | #include <linux/kernel.h> | |
| 23 | #include <linux/init.h> | |
| 25f5550f MD |
24 | |
| 25 | #ifdef CONFIG_COMMON_CLK | |
| 26 | #include <linux/clk.h> | |
| 27 | #include <linux/clkdev.h> | |
| ad6ffa0b | 28 | #include "clock.h" |
| 25f5550f MD |
29 | |
| 30 | void __init shmobile_clk_workaround(const struct clk_name *clks, | |
| 31 | int nr_clks, bool enable) | |
| 32 | { | |
| 33 | const struct clk_name *clkn; | |
| 34 | struct clk *clk; | |
| 35 | unsigned int i; | |
| 36 | ||
| 37 | for (i = 0; i < nr_clks; ++i) { | |
| 38 | clkn = clks + i; | |
| 39 | clk = clk_get(NULL, clkn->clk); | |
| 40 | if (!IS_ERR(clk)) { | |
| 41 | clk_register_clkdev(clk, clkn->con_id, clkn->dev_id); | |
| 42 | if (enable) | |
| 43 | clk_prepare_enable(clk); | |
| 44 | clk_put(clk); | |
| 45 | } | |
| 46 | } | |
| 47 | } | |
| 48 | ||
| 49 | #else /* CONFIG_COMMON_CLK */ | |
| e47bb515 | 50 | #include <linux/sh_clk.h> |
| dc28094b | 51 | #include <linux/export.h> |
| ad6ffa0b | 52 | #include "clock.h" |
| fd44aa5e | 53 | #include "common.h" |
| f5942c76 KM |
54 | |
| 55 | unsigned long shmobile_fixed_ratio_clk_recalc(struct clk *clk) | |
| 56 | { | |
| 57 | struct clk_ratio *p = clk->priv; | |
| 58 | ||
| 59 | return clk->parent->rate / p->div * p->mul; | |
| 60 | }; | |
| 61 | ||
| 62 | struct sh_clk_ops shmobile_fixed_ratio_clk_ops = { | |
| 63 | .recalc = shmobile_fixed_ratio_clk_recalc, | |
| 64 | }; | |
| e47bb515 | 65 | |
| 6b6a4c06 | 66 | int __init shmobile_clk_init(void) |
| e47bb515 MD |
67 | { |
| 68 | /* Kick the child clocks.. */ | |
| 69 | recalculate_root_clocks(); | |
| 70 | ||
| 71 | /* Enable the necessary init clocks */ | |
| 72 | clk_enable_init_clocks(); | |
| 73 | ||
| 74 | return 0; | |
| 75 | } | |
| 76 | ||
| 77 | int __clk_get(struct clk *clk) | |
| 78 | { | |
| 79 | return 1; | |
| 80 | } | |
| 81 | EXPORT_SYMBOL(__clk_get); | |
| 82 | ||
| 83 | void __clk_put(struct clk *clk) | |
| 84 | { | |
| 85 | } | |
| 86 | EXPORT_SYMBOL(__clk_put); | |
| 25f5550f MD |
87 | |
| 88 | #endif /* CONFIG_COMMON_CLK */ |