mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
d037e100d1
Clean all #ifdef's added to OMAP2 clock code to make it COMMON clk ready, not that CONFIG_COMMON_CLK is enabled. Signed-off-by: Rajendra Nayak <rnayak@ti.com> [paul@pwsan.com: also drop CONFIG_COMMON_CLK tests around APLL recalc_rate functions] Signed-off-by: Mike Turquette <mturquette@ti.com> [paul@pwsan.com: remove some ifdefs in mach-omap2/io.c] Signed-off-by: Paul Walmsley <paul@pwsan.com>
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/*
|
|
* OMAP2-specific DPLL control functions
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/io.h>
|
|
|
|
#include "clock.h"
|
|
#include "cm2xxx.h"
|
|
#include "cm-regbits-24xx.h"
|
|
|
|
/* Private functions */
|
|
|
|
/**
|
|
* _allow_idle - enable DPLL autoidle bits
|
|
* @clk: struct clk * of the DPLL to operate on
|
|
*
|
|
* Enable DPLL automatic idle control. The DPLL will enter low-power
|
|
* stop when its downstream clocks are gated. No return value.
|
|
* REVISIT: DPLL can optionally enter low-power bypass by writing 0x1
|
|
* instead. Add some mechanism to optionally enter this mode.
|
|
*/
|
|
static void _allow_idle(struct clk_hw_omap *clk)
|
|
{
|
|
if (!clk || !clk->dpll_data)
|
|
return;
|
|
|
|
omap2xxx_cm_set_dpll_auto_low_power_stop();
|
|
}
|
|
|
|
/**
|
|
* _deny_idle - prevent DPLL from automatically idling
|
|
* @clk: struct clk * of the DPLL to operate on
|
|
*
|
|
* Disable DPLL automatic idle control. No return value.
|
|
*/
|
|
static void _deny_idle(struct clk_hw_omap *clk)
|
|
{
|
|
if (!clk || !clk->dpll_data)
|
|
return;
|
|
|
|
omap2xxx_cm_set_dpll_disable_autoidle();
|
|
}
|
|
|
|
|
|
/* Public data */
|
|
const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll = {
|
|
.allow_idle = _allow_idle,
|
|
.deny_idle = _deny_idle,
|
|
};
|