linux/arch/arm/mach-omap2/powerdomain44xx.c
Rajendra Nayak f327e07b0e OMAP: powerdomain: Arch specific funcs for state control
Define the following architecture specific funtions for omap2/3/4
.pwrdm_set_next_pwrst
.pwrdm_read_next_pwrst
.pwrdm_read_pwrst
.pwrdm_read_prev_pwrst

Convert the platform-independent framework to call these functions.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: remove remaining static allocations in powerdomains.h file;
 remove path in file header comments, rearranged Makefile changes]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Rajendra Nayak <rnayak@ti.com>
2010-12-21 20:01:18 -07:00

56 lines
1.6 KiB
C

/*
* OMAP4 powerdomain control
*
* Copyright (C) 2009-2010 Texas Instruments, Inc.
* Copyright (C) 2007-2009 Nokia Corporation
*
* Derived from mach-omap2/powerdomain.c written by Paul Walmsley
* Rajendra Nayak <rnayak@ti.com>
*
* 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/io.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <plat/powerdomain.h>
#include <plat/prcm.h>
#include "prm.h"
#include "prm-regbits-44xx.h"
#include "powerdomains.h"
static int omap4_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst)
{
prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK,
(pwrst << OMAP_POWERSTATE_SHIFT),
pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL);
return 0;
}
static int omap4_pwrdm_read_next_pwrst(struct powerdomain *pwrdm)
{
return prm_read_mod_bits_shift(pwrdm->prcm_offs,
OMAP4_PM_PWSTCTRL, OMAP_POWERSTATE_MASK);
}
static int omap4_pwrdm_read_pwrst(struct powerdomain *pwrdm)
{
return prm_read_mod_bits_shift(pwrdm->prcm_offs,
OMAP4_PM_PWSTST, OMAP_POWERSTATEST_MASK);
}
static int omap4_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
{
return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP4_PM_PWSTST,
OMAP4430_LASTPOWERSTATEENTERED_MASK);
}
struct pwrdm_ops omap4_pwrdm_operations = {
.pwrdm_set_next_pwrst = omap4_pwrdm_set_next_pwrst,
.pwrdm_read_next_pwrst = omap4_pwrdm_read_next_pwrst,
.pwrdm_read_pwrst = omap4_pwrdm_read_pwrst,
.pwrdm_read_prev_pwrst = omap4_pwrdm_read_prev_pwrst,
};