mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-18 08:35:08 +08:00
519ab8b202
Clock nodes shall use the services provided by underlying drivers to access the hardware registers instead of direct memory read/write. Thus, change all the code to use the new omap2_clk_readl / omap2_clk_writel APIs for this. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
/*
|
|
* 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"
|
|
#include "clock2xxx.h"
|
|
#include "cm2xxx_3xxx.h"
|
|
#include "cm-regbits-24xx.h"
|
|
|
|
/* 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,
|
|
};
|
|
|
|
|
|
|