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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-provider.h>
#include <linux/io.h>
#include "clock.h"
/* Register offsets */
#define CM_AUTOIDLE 0x30
#define CM_ICLKEN 0x10
/* Private functions */
/* XXX */
void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk)
{
u32 v;
void __iomem *r;
r = (__force void __iomem *)
((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
v = omap2_clk_readl(clk, r);
v |= (1 << clk->enable_bit);
omap2_clk_writel(v, clk, r);
}
/* XXX */
void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk)
{
u32 v;
void __iomem *r;
r = (__force void __iomem *)
((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
v = omap2_clk_readl(clk, r);
v &= ~(1 << clk->enable_bit);
omap2_clk_writel(v, clk, r);
}
/* Public data */
const struct clk_hw_omap_ops clkhwops_iclk = {
.allow_idle = omap2_clkt_iclk_allow_idle,
.deny_idle = omap2_clkt_iclk_deny_idle,
};
const struct clk_hw_omap_ops clkhwops_iclk_wait = {
.allow_idle = omap2_clkt_iclk_allow_idle,
.deny_idle = omap2_clkt_iclk_deny_idle,
.find_idlest = omap2_clk_dflt_find_idlest,
.find_companion = omap2_clk_dflt_find_companion,
};
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