clkt_iclk.c
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/*
* OMAP2/3 interface clock control
*
* Copyright (C) 2011 Nokia Corporation
* Paul Walmsley
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#undef DEBUG
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <plat/clock.h>
#include <plat/prcm.h>
#include "clock.h"
#include "clock2xxx.h"
#include "cm2xxx_3xxx.h"
#include "cm-regbits-24xx.h"
/* Private functions */
/* XXX */
void omap2_clkt_iclk_allow_idle(struct clk *clk)
{
u32 v, r;
r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
v = __raw_readl((__force void __iomem *)r);
v |= (1 << clk->enable_bit);
__raw_writel(v, (__force void __iomem *)r);
}
/* XXX */
void omap2_clkt_iclk_deny_idle(struct clk *clk)
{
u32 v, r;
r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
v = __raw_readl((__force void __iomem *)r);
v &= ~(1 << clk->enable_bit);
__raw_writel(v, (__force void __iomem *)r);
}
/* Public data */
const struct clkops clkops_omap2_iclk_dflt_wait = {
.enable = omap2_dflt_clk_enable,
.disable = omap2_dflt_clk_disable,
.find_companion = omap2_clk_dflt_find_companion,
.find_idlest = omap2_clk_dflt_find_idlest,
.allow_idle = omap2_clkt_iclk_allow_idle,
.deny_idle = omap2_clkt_iclk_deny_idle,
};
const struct clkops clkops_omap2_iclk_dflt = {
.enable = omap2_dflt_clk_enable,
.disable = omap2_dflt_clk_disable,
.allow_idle = omap2_clkt_iclk_allow_idle,
.deny_idle = omap2_clkt_iclk_deny_idle,
};
const struct clkops clkops_omap2_iclk_idle_only = {
.allow_idle = omap2_clkt_iclk_allow_idle,
.deny_idle = omap2_clkt_iclk_deny_idle,
};
const struct clkops clkops_omap2_mdmclk_dflt_wait = {
.enable = omap2_dflt_clk_enable,
.disable = omap2_dflt_clk_disable,
.find_companion = omap2_clk_dflt_find_companion,
.find_idlest = omap2_clk_dflt_find_idlest,
.allow_idle = omap2_clkt_iclk_allow_idle,
.deny_idle = omap2_clkt_iclk_deny_idle,
};