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32cc002116
Convert all OMAP4 specific platform files to use COMMON clk
and keep all the changes under the CONFIG_COMMON_CLK macro check
so it does not break any existing code. At a later point switch
to COMMON clk and get rid of all old/legacy code.
This converts all apis which will be called directly from COMMON
clk to take a struct clk_hw parameter, and all the internal platform
apis to take a struct clk_hw_omap parameter.
Changes are based off the original patch from Mike Turquette.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: created new omap2_clksel_find_parent_index() rather than
modifying omap2_init_clksel_parent(); moved clkhwops_iclk_wait to
clkt_iclk.c to fix OMAP4-only builds; added clk-provider.h include to clock.h
to try to fix some 3430-builds]
[mturquette@ti.com: squash patch for omap2_clkops_{en,dis}able_clkdm;
omap2_dflt_clk_is_enabled should not enable clocks]
Signed-off-by: Mike Turquette <mturquette@ti.com>
[paul@pwsan.com: fix compiler warning; update to apply; added kerneldoc on
non-trivial new functions; added the dpll3xxx clockdomain modifications]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*
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* OMAP2/3 interface clock control
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*
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* Copyright (C) 2011 Nokia Corporation
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* Paul Walmsley
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#undef DEBUG
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#include <linux/kernel.h>
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#ifdef CONFIG_COMMON_CLK
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#include <linux/clk-provider.h>
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#else
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#include <linux/clk.h>
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#endif
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#include <linux/io.h>
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#include "clock.h"
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#include "clock2xxx.h"
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#include "cm2xxx_3xxx.h"
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#include "cm-regbits-24xx.h"
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/* Private functions */
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/* XXX */
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void omap2_clkt_iclk_allow_idle(struct clk *clk)
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{
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u32 v, r;
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r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
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v = __raw_readl((__force void __iomem *)r);
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v |= (1 << clk->enable_bit);
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__raw_writel(v, (__force void __iomem *)r);
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}
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/* XXX */
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void omap2_clkt_iclk_deny_idle(struct clk *clk)
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{
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u32 v, r;
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r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
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v = __raw_readl((__force void __iomem *)r);
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v &= ~(1 << clk->enable_bit);
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__raw_writel(v, (__force void __iomem *)r);
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}
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/* Public data */
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#ifdef CONFIG_COMMON_CLK
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const struct clk_hw_omap_ops clkhwops_iclk_wait = {
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.allow_idle = omap2_clkt_iclk_allow_idle,
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.deny_idle = omap2_clkt_iclk_deny_idle,
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.find_idlest = omap2_clk_dflt_find_idlest,
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.find_companion = omap2_clk_dflt_find_companion,
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};
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#else
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const struct clkops clkops_omap2_iclk_dflt_wait = {
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.enable = omap2_dflt_clk_enable,
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.disable = omap2_dflt_clk_disable,
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.find_companion = omap2_clk_dflt_find_companion,
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.find_idlest = omap2_clk_dflt_find_idlest,
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.allow_idle = omap2_clkt_iclk_allow_idle,
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.deny_idle = omap2_clkt_iclk_deny_idle,
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};
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const struct clkops clkops_omap2_iclk_dflt = {
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.enable = omap2_dflt_clk_enable,
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.disable = omap2_dflt_clk_disable,
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.allow_idle = omap2_clkt_iclk_allow_idle,
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.deny_idle = omap2_clkt_iclk_deny_idle,
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};
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const struct clkops clkops_omap2_iclk_idle_only = {
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.allow_idle = omap2_clkt_iclk_allow_idle,
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.deny_idle = omap2_clkt_iclk_deny_idle,
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};
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const struct clkops clkops_omap2_mdmclk_dflt_wait = {
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.enable = omap2_dflt_clk_enable,
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.disable = omap2_dflt_clk_disable,
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.find_companion = omap2_clk_dflt_find_companion,
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.find_idlest = omap2_clk_dflt_find_idlest,
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.allow_idle = omap2_clkt_iclk_allow_idle,
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.deny_idle = omap2_clkt_iclk_deny_idle,
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};
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#endif
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