2 * OMAP2/3 interface clock control
4 * Copyright (C) 2011 Nokia Corporation
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.
13 #include <linux/kernel.h>
14 #include <linux/clk.h>
17 #include <plat/prcm.h>
20 #include "clock2xxx.h"
21 #include "cm2xxx_3xxx.h"
22 #include "cm-regbits-24xx.h"
24 /* Private functions */
27 void omap2_clkt_iclk_allow_idle(struct clk *clk)
31 r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
33 v = __raw_readl((__force void __iomem *)r);
34 v |= (1 << clk->enable_bit);
35 __raw_writel(v, (__force void __iomem *)r);
39 void omap2_clkt_iclk_deny_idle(struct clk *clk)
43 r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
45 v = __raw_readl((__force void __iomem *)r);
46 v &= ~(1 << clk->enable_bit);
47 __raw_writel(v, (__force void __iomem *)r);
52 const struct clkops clkops_omap2_iclk_dflt_wait = {
53 .enable = omap2_dflt_clk_enable,
54 .disable = omap2_dflt_clk_disable,
55 .find_companion = omap2_clk_dflt_find_companion,
56 .find_idlest = omap2_clk_dflt_find_idlest,
57 .allow_idle = omap2_clkt_iclk_allow_idle,
58 .deny_idle = omap2_clkt_iclk_deny_idle,
61 const struct clkops clkops_omap2_iclk_dflt = {
62 .enable = omap2_dflt_clk_enable,
63 .disable = omap2_dflt_clk_disable,
64 .allow_idle = omap2_clkt_iclk_allow_idle,
65 .deny_idle = omap2_clkt_iclk_deny_idle,
68 const struct clkops clkops_omap2_iclk_idle_only = {
69 .allow_idle = omap2_clkt_iclk_allow_idle,
70 .deny_idle = omap2_clkt_iclk_deny_idle,
73 const struct clkops clkops_omap2_mdmclk_dflt_wait = {
74 .enable = omap2_dflt_clk_enable,
75 .disable = omap2_dflt_clk_disable,
76 .find_companion = omap2_clk_dflt_find_companion,
77 .find_idlest = omap2_clk_dflt_find_idlest,
78 .allow_idle = omap2_clkt_iclk_allow_idle,
79 .deny_idle = omap2_clkt_iclk_deny_idle,