On Thu, Jul 5, 2012 at 3:03 PM, Rajendra Nayak <rnayak@xxxxxx> wrote:
> Just to give more context, the though of doing something like
> what the below RFC does came up as part of the patch review of
> Jean's "Functional power state" series.
My reply crossed yours...
> There was also some
> offline discussion about this between me, Santosh Shilimkar and
> Paul Walmsley.
Good to know!
And... ?
Jean.
>
>
> On Thursday 05 July 2012 06:17 PM, Rajendra Nayak wrote:
>>
>> Hi,
>>
>> This RFC is aimed at simplifying the powerdomain control
>> (in software) for OMAP. Powerdomains on OMAP have been
>> fairly complex to program (as compared to other SoCs)
>> mainly due to the multiple memory/logic control exposed
>> to software. These controls are limited to achieving
>> whats know as 'OSWR: Open Switch Retention' state in OMAP.
>> Rest of the states supported (ON, INACTIVE, CSWR, OFF) are
>> fairly easy to program needing just a target power state
>> to be configured.
>>
>> While in theory, the hardware does expose multiple ways/
>> combinations in which OSWR can be achieved, we in software
>> have always been using just *one* combination all along.
>> OSWR has always been configured as *logic lost, all memory
>> retained* for all current OMAPs supported.
>>
>> With future OMAPs planning to get rid of all the memory/logic
>> control altogether it makes sense to look at the apis exposed
>> through the current powerdomain framework to its users (like
>> cpuilde, suspend etc) and see if those could also be simplified.
>>
>> The RFC is suspend tested on OMAP4430sdp and
>> OMAP3630Beagle-Xm.
>>
>> regards,
>> Rajendra
>>
>> ----
>> From 5f5e4eb342110286bf719c7d9d7c1959f53e34f9 Mon Sep 17 00:00:00 2001
>> From: Rajendra Nayak<rnayak@xxxxxx>
>> Date: Thu, 5 Jul 2012 17:33:28 +0530
>> Subject: [RFC] ARM: OMAP: Powerdomain: control memory and logic bits
>> internally
>>
>> Powerdomain framework exposes various apis for memory and logic
>> control for powerdomains, for its users to program OSWR: Open SWitch
>> Retention state. While in theory, there are various combinations of
>> memory and logic states possible which can be configured as OSWR,
>> in practice all OMAPs use just one combination. Logic lost, memory
>> retained.
>>
>> This can very easily be handled within the powerdomain framework itself,
>> without exposing all complex memory/logic control apis to upper layer
>> drivers like cpuidle and suspend.
>>
>> To do this, introduce 2 new power domain states PWRDM_POWER_CSWR and
>> PWRDM_POWER_OSWR usable by the users of powerdomain framework and
>> make all memory/logic control apis internal to powerdomain framework.
>> Change all users of powerdomain framework to get rid of all usage
>> of memory/logic control apis and use the newly defined states for
>> CSWR and OSWR with the already used powerstate control apis.
>>
>> Some functions (which are now made internal) are forward declared
>> to avoid moving functions around in the file (which can be done in a
>> later patch) to help keep the patch reviewable.
>>
>> Signed-off-by: Rajendra Nayak<rnayak@xxxxxx>
>> ---
>> arch/arm/mach-omap2/cpuidle44xx.c | 9 +---
>> arch/arm/mach-omap2/omap-mpuss-lowpower.c | 7 +--
>> arch/arm/mach-omap2/pm24xx.c | 17 +------
>> arch/arm/mach-omap2/pm34xx.c | 8 ++--
>> arch/arm/mach-omap2/pm44xx.c | 11 +---
>> arch/arm/mach-omap2/powerdomain-private.h | 17 +++++++
>> arch/arm/mach-omap2/powerdomain.c | 54
>> +++++++++++++++++++---
>> arch/arm/mach-omap2/powerdomain.h | 14 +-----
>> arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.c | 1 +
>> arch/arm/mach-omap2/powerdomains2xxx_data.c | 1 +
>> arch/arm/mach-omap2/powerdomains3xxx_data.c | 1 +
>> arch/arm/mach-omap2/powerdomains44xx_data.c | 1 +
>> 12 files changed, 85 insertions(+), 56 deletions(-)
>> create mode 100644 arch/arm/mach-omap2/powerdomain-private.h
>>
>> diff --git a/arch/arm/mach-omap2/cpuidle44xx.c
>> b/arch/arm/mach-omap2/cpuidle44xx.c
>> index be1617c..d40fe90 100644
>> --- a/arch/arm/mach-omap2/cpuidle44xx.c
>> +++ b/arch/arm/mach-omap2/cpuidle44xx.c
>> @@ -27,7 +27,6 @@
>> /* Machine specific information */
>> struct omap4_idle_statedata {
>> u32 cpu_state;
>> - u32 mpu_logic_state;
>> u32 mpu_state;
>> };
>>
>> @@ -35,17 +34,14 @@ static struct omap4_idle_statedata omap4_idle_data[] =
>> {
>> {
>> .cpu_state = PWRDM_POWER_ON,
>> .mpu_state = PWRDM_POWER_ON,
>> - .mpu_logic_state = PWRDM_POWER_RET,
>> },
>> {
>> .cpu_state = PWRDM_POWER_OFF,
>> - .mpu_state = PWRDM_POWER_RET,
>> - .mpu_logic_state = PWRDM_POWER_RET,
>> + .mpu_state = PWRDM_POWER_CSWR,
>> },
>> {
>> .cpu_state = PWRDM_POWER_OFF,
>> - .mpu_state = PWRDM_POWER_RET,
>> - .mpu_logic_state = PWRDM_POWER_OFF,
>> + .mpu_state = PWRDM_POWER_OSWR,
>> },
>> };
>>
>> @@ -95,7 +91,6 @@ static int omap4_enter_idle(struct cpuidle_device *dev,
>> if (cx->cpu_state == PWRDM_POWER_OFF)
>> cpu_pm_enter();
>>
>> - pwrdm_set_logic_retst(mpu_pd, cx->mpu_logic_state);
>> omap_set_pwrdm_state(mpu_pd, cx->mpu_state);
>>
>> /*
>> diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
>> b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
>> index 13670aa..41d559b 100644
>> --- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
>> +++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
>> @@ -125,7 +125,7 @@ static void scu_pwrst_prepare(unsigned int cpu_id,
>> unsigned int cpu_state)
>> u32 scu_pwr_st;
>>
>> switch (cpu_state) {
>> - case PWRDM_POWER_RET:
>> + case PWRDM_POWER_OSWR:
>> scu_pwr_st = SCU_PM_DORMANT;
>> break;
>> case PWRDM_POWER_OFF:
>> @@ -243,7 +243,7 @@ int omap4_enter_lowpower(unsigned int cpu, unsigned
>> int power_state)
>> case PWRDM_POWER_OFF:
>> save_state = 1;
>> break;
>> - case PWRDM_POWER_RET:
>> + case PWRDM_POWER_CSWR:
>> default:
>> /*
>> * CPUx CSWR is invalid hardware state. Also CPUx OSWR
>> @@ -262,8 +262,7 @@ int omap4_enter_lowpower(unsigned int cpu, unsigned
>> int power_state)
>> * In MPUSS OSWR or device OFF, interrupt controller contest is
>> lost.
>> */
>> mpuss_clear_prev_logic_pwrst();
>> - if ((pwrdm_read_next_pwrst(mpuss_pd) == PWRDM_POWER_RET)&&
>> - (pwrdm_read_logic_retst(mpuss_pd) == PWRDM_POWER_OFF))
>> + if (pwrdm_read_next_pwrst(mpuss_pd) == PWRDM_POWER_OSWR)
>> save_state = 2;
>>
>> cpu_clear_prev_logic_pwrst(cpu);
>> diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
>> index 2edeffc..fe60d31 100644
>> --- a/arch/arm/mach-omap2/pm24xx.c
>> +++ b/arch/arm/mach-omap2/pm24xx.c
>> @@ -93,8 +93,7 @@ static int omap2_enter_full_retention(void)
>> * Set MPU powerdomain's next power state to RETENTION;
>> * preserve logic state during retention
>> */
>> - pwrdm_set_logic_retst(mpu_pwrdm, PWRDM_POWER_RET);
>> - pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
>> + pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_CSWR);
>>
>> /* Workaround to kill USB */
>> l = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0) |
>> OMAP24XX_USBSTANDBYCTRL;
>> @@ -232,7 +231,6 @@ out:
>>
>> static void __init prcm_setup_regs(void)
>> {
>> - int i, num_mem_banks;
>> struct powerdomain *pwrdm;
>>
>> /*
>> @@ -242,23 +240,14 @@ static void __init prcm_setup_regs(void)
>> omap2_prm_write_mod_reg(OMAP24XX_AUTOIDLE_MASK, OCP_MOD,
>> OMAP2_PRCM_SYSCONFIG_OFFSET);
>>
>> - /*
>> - * Set CORE powerdomain memory banks to retain their contents
>> - * during RETENTION
>> - */
>> - num_mem_banks = pwrdm_get_mem_bank_count(core_pwrdm);
>> - for (i = 0; i< num_mem_banks; i++)
>> - pwrdm_set_mem_retst(core_pwrdm, i, PWRDM_POWER_RET);
>> -
>> /* Set CORE powerdomain's next power state to RETENTION */
>> - pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_RET);
>> + pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_CSWR);
>>
>> /*
>> * Set MPU powerdomain's next power state to RETENTION;
>> * preserve logic state during retention
>> */
>> - pwrdm_set_logic_retst(mpu_pwrdm, PWRDM_POWER_RET);
>> - pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET);
>> + pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_CSWR);
>>
>> /* Force-power down DSP, GFX powerdomains */
>>
>> diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
>> index 3a595e8..6ae3b4d 100644
>> --- a/arch/arm/mach-omap2/pm34xx.c
>> +++ b/arch/arm/mach-omap2/pm34xx.c
>> @@ -279,7 +279,7 @@ void omap_sram_idle(void)
>> mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm);
>> switch (mpu_next_state) {
>> case PWRDM_POWER_ON:
>> - case PWRDM_POWER_RET:
>> + case PWRDM_POWER_CSWR:
>> /* No need to save context */
>> save_state = 0;
>> break;
>> @@ -610,13 +610,13 @@ void omap3_pm_off_mode_enable(int enable)
>> if (enable)
>> state = PWRDM_POWER_OFF;
>> else
>> - state = PWRDM_POWER_RET;
>> + state = PWRDM_POWER_CSWR;
>>
>> list_for_each_entry(pwrst,&pwrst_list, node) {
>> if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583)&&
>> pwrst->pwrdm == core_pwrdm&&
>> state == PWRDM_POWER_OFF) {
>> - pwrst->next_state = PWRDM_POWER_RET;
>> + pwrst->next_state = PWRDM_POWER_CSWR;
>> pr_warn("%s: Core OFF disabled due to errata
>> i583\n",
>> __func__);
>> } else {
>> @@ -661,7 +661,7 @@ static int __init pwrdms_setup(struct powerdomain
>> *pwrdm, void *unused)
>> if (!pwrst)
>> return -ENOMEM;
>> pwrst->pwrdm = pwrdm;
>> - pwrst->next_state = PWRDM_POWER_RET;
>> + pwrst->next_state = PWRDM_POWER_CSWR;
>> list_add(&pwrst->node,&pwrst_list);
>>
>> if (pwrdm_has_hdwr_sar(pwrdm))
>> diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
>> index ea24174..2029740 100644
>> --- a/arch/arm/mach-omap2/pm44xx.c
>> +++ b/arch/arm/mach-omap2/pm44xx.c
>> @@ -43,16 +43,12 @@ static int omap4_pm_suspend(void)
>> u32 cpu_id = smp_processor_id();
>>
>> /* Save current powerdomain state */
>> - list_for_each_entry(pwrst,&pwrst_list, node) {
>> + list_for_each_entry(pwrst,&pwrst_list, node)
>>
>> pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm);
>> - pwrst->saved_logic_state =
>> pwrdm_read_logic_retst(pwrst->pwrdm);
>> - }
>>
>> /* Set targeted power domain states by suspend */
>> - list_for_each_entry(pwrst,&pwrst_list, node) {
>> + list_for_each_entry(pwrst,&pwrst_list, node)
>>
>> omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state);
>> - pwrdm_set_logic_retst(pwrst->pwrdm, PWRDM_POWER_OFF);
>> - }
>>
>> /*
>> * For MPUSS to hit power domain retention(CSWR or OSWR),
>> @@ -75,7 +71,6 @@ static int omap4_pm_suspend(void)
>> ret = -1;
>> }
>> omap_set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state);
>> - pwrdm_set_logic_retst(pwrst->pwrdm,
>> pwrst->saved_logic_state);
>> }
>> if (ret)
>> pr_crit("Could not enter target state in pm_suspend\n");
>> @@ -113,7 +108,7 @@ static int __init pwrdms_setup(struct powerdomain
>> *pwrdm, void *unused)
>> return -ENOMEM;
>>
>> pwrst->pwrdm = pwrdm;
>> - pwrst->next_state = PWRDM_POWER_RET;
>> + pwrst->next_state = PWRDM_POWER_CSWR;
>> list_add(&pwrst->node,&pwrst_list);
>>
>> return omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state);
>> diff --git a/arch/arm/mach-omap2/powerdomain-private.h
>> b/arch/arm/mach-omap2/powerdomain-private.h
>> new file mode 100644
>> index 0000000..0c2dd23
>> --- /dev/null
>> +++ b/arch/arm/mach-omap2/powerdomain-private.h
>> @@ -0,0 +1,17 @@
>> +/*
>> + * Internal powerdomain header
>> + *
>> + * Copyright (C) 2012 Texas Instruments, Inc.
>> + *
>> + * 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.
>> + *
>> + */
>> +
>> +#ifndef __ARCH_ARM_MACH_OMAP2_POWERDOMAIN_PRIVATE_H
>> +#define __ARCH_ARM_MACH_OMAP2_POWERDOMAIN_PRIVATE_H
>> +
>> +#define PWRDM_POWER_RET 0x1
>> +
>> +#endif /* __ARCH_ARM_MACH_OMAP2_POWERDOMAIN_PRIVATE_H */
>> diff --git a/arch/arm/mach-omap2/powerdomain.c
>> b/arch/arm/mach-omap2/powerdomain.c
>> index 9611490..79e3b28 100644
>> --- a/arch/arm/mach-omap2/powerdomain.c
>> +++ b/arch/arm/mach-omap2/powerdomain.c
>> @@ -30,6 +30,7 @@
>> #include<asm/cpu.h>
>> #include<plat/cpu.h>
>> #include "powerdomain.h"
>> +#include "powerdomain-private.h"
>> #include "clockdomain.h"
>> #include<plat/prcm.h>
>>
>> @@ -42,6 +43,13 @@ enum {
>> PWRDM_STATE_PREV,
>> };
>>
>> +/* Fwd declarations */
>> +static int pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst);
>> +static int pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, u8
>> pwrst);
>> +static int pwrdm_read_logic_retst(struct powerdomain *pwrdm);
>> +static int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm);
>> +static int pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank);
>> +static int pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm);
>>
>> /* pwrdm_list contains all registered struct powerdomains */
>> static LIST_HEAD(pwrdm_list);
>> @@ -477,7 +485,7 @@ int pwrdm_get_mem_bank_count(struct powerdomain
>> *pwrdm)
>> */
>> int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst)
>> {
>> - int ret = -EINVAL;
>> + int ret = -EINVAL, i, num_mem_banks;
>>
>> if (!pwrdm)
>> return -EINVAL;
>> @@ -488,6 +496,20 @@ int pwrdm_set_next_pwrst(struct powerdomain *pwrdm,
>> u8 pwrst)
>> pr_debug("powerdomain: setting next powerstate for %s to %0x\n",
>> pwrdm->name, pwrst);
>>
>> + switch (pwrst) {
>> + case PWRDM_POWER_CSWR:
>> + case PWRDM_POWER_OSWR:
>> + if (pwrst == PWRDM_POWER_OSWR)
>> + pwrdm_set_logic_retst(pwrdm, PWRDM_POWER_OFF);
>> + num_mem_banks = pwrdm_get_mem_bank_count(pwrdm);
>> + for (i = 0; i< num_mem_banks; i++)
>> + pwrdm_set_mem_retst(pwrdm, i, PWRDM_POWER_RET);
>> + pwrst = PWRDM_POWER_RET;
>> + break;
>> + default:
>> + break;
>> + }
>> +
>> if (arch_pwrdm&& arch_pwrdm->pwrdm_set_next_pwrst) {
>>
>> /* Trace the pwrdm desired target state */
>> trace_power_domain_target(pwrdm->name, pwrst,
>> @@ -517,6 +539,12 @@ int pwrdm_read_next_pwrst(struct powerdomain *pwrdm)
>> if (arch_pwrdm&& arch_pwrdm->pwrdm_read_next_pwrst)
>>
>> ret = arch_pwrdm->pwrdm_read_next_pwrst(pwrdm);
>>
>> + if (ret == PWRDM_POWER_RET) {
>> + if (pwrdm_read_logic_retst(pwrdm) == PWRDM_POWER_OFF)
>> + ret = PWRDM_POWER_OSWR;
>> + else
>> + ret = PWRDM_POWER_CSWR;
>> + }
>> return ret;
>> }
>>
>> @@ -538,6 +566,12 @@ int pwrdm_read_pwrst(struct powerdomain *pwrdm)
>> if (arch_pwrdm&& arch_pwrdm->pwrdm_read_pwrst)
>>
>> ret = arch_pwrdm->pwrdm_read_pwrst(pwrdm);
>>
>> + if (ret == PWRDM_POWER_RET) {
>> + if (pwrdm_read_logic_pwrst(pwrdm) == PWRDM_POWER_OFF)
>> + ret = PWRDM_POWER_OSWR;
>> + else
>> + ret = PWRDM_POWER_CSWR;
>> + }
>> return ret;
>> }
>>
>> @@ -559,6 +593,12 @@ int pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
>> if (arch_pwrdm&& arch_pwrdm->pwrdm_read_prev_pwrst)
>>
>> ret = arch_pwrdm->pwrdm_read_prev_pwrst(pwrdm);
>>
>> + if (ret == PWRDM_POWER_RET) {
>> + if (pwrdm_read_prev_logic_pwrst(pwrdm) == PWRDM_POWER_OFF)
>> + ret = PWRDM_POWER_OSWR;
>> + else
>> + ret = PWRDM_POWER_CSWR;
>> + }
>> return ret;
>> }
>>
>> @@ -573,7 +613,7 @@ int pwrdm_read_prev_pwrst(struct powerdomain *pwrdm)
>> * -EINVAL if the powerdomain pointer is null or the target power
>> * state is not not supported, or returns 0 upon success.
>> */
>> -int pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst)
>> +static int pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst)
>> {
>> int ret = -EINVAL;
>>
>> @@ -645,7 +685,7 @@ int pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8
>> bank, u8 pwrst)
>> * bank does not exist or is not controllable, or returns 0 upon
>> * success.
>> */
>> -int pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, u8 pwrst)
>> +static int pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, u8
>> pwrst)
>> {
>> int ret = -EINVAL;
>>
>> @@ -676,7 +716,7 @@ int pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8
>> bank, u8 pwrst)
>> * if the powerdomain pointer is null or returns the logic retention
>> * power state upon success.
>> */
>> -int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
>> +static int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
>> {
>> int ret = -EINVAL;
>>
>> @@ -697,7 +737,7 @@ int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm)
>> * -EINVAL if the powerdomain pointer is null or returns the previous
>> * logic power state upon success.
>> */
>> -int pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm)
>> +static int pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm)
>> {
>> int ret = -EINVAL;
>>
>> @@ -718,7 +758,7 @@ int pwrdm_read_prev_logic_pwrst(struct powerdomain
>> *pwrdm)
>> * if the powerdomain pointer is null or returns the next logic
>> * power state upon success.
>> */
>> -int pwrdm_read_logic_retst(struct powerdomain *pwrdm)
>> +static int pwrdm_read_logic_retst(struct powerdomain *pwrdm)
>> {
>> int ret = -EINVAL;
>>
>> @@ -771,7 +811,7 @@ int pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8
>> bank)
>> * controllable, or returns the previous memory power state upon
>> * success.
>> */
>> -int pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank)
>> +static int pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank)
>> {
>> int ret = -EINVAL;
>>
>> diff --git a/arch/arm/mach-omap2/powerdomain.h
>> b/arch/arm/mach-omap2/powerdomain.h
>> index 8f88d65..57d9953 100644
>> --- a/arch/arm/mach-omap2/powerdomain.h
>> +++ b/arch/arm/mach-omap2/powerdomain.h
>> @@ -28,9 +28,10 @@
>>
>> /* Powerdomain basic power states */
>> #define PWRDM_POWER_OFF 0x0
>> -#define PWRDM_POWER_RET 0x1
>> #define PWRDM_POWER_INACTIVE 0x2
>> #define PWRDM_POWER_ON 0x3
>> +#define PWRDM_POWER_CSWR 0x4
>> +#define PWRDM_POWER_OSWR 0x5
>>
>> #define PWRDM_MAX_PWRSTS 4
>>
>> @@ -195,17 +196,6 @@ int pwrdm_read_pwrst(struct powerdomain *pwrdm);
>> int pwrdm_read_prev_pwrst(struct powerdomain *pwrdm);
>> int pwrdm_clear_all_prev_pwrst(struct powerdomain *pwrdm);
>>
>> -int pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst);
>> -int pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, u8 pwrst);
>> -int pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, u8 pwrst);
>> -
>> -int pwrdm_read_logic_pwrst(struct powerdomain *pwrdm);
>> -int pwrdm_read_prev_logic_pwrst(struct powerdomain *pwrdm);
>> -int pwrdm_read_logic_retst(struct powerdomain *pwrdm);
>> -int pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank);
>> -int pwrdm_read_prev_mem_pwrst(struct powerdomain *pwrdm, u8 bank);
>> -int pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank);
>> -
>> int pwrdm_enable_hdwr_sar(struct powerdomain *pwrdm);
>> int pwrdm_disable_hdwr_sar(struct powerdomain *pwrdm);
>> bool pwrdm_has_hdwr_sar(struct powerdomain *pwrdm);
>> diff --git a/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.c
>> b/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.c
>> index d3a5399..de8c67f 100644
>> --- a/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.c
>> +++ b/arch/arm/mach-omap2/powerdomains2xxx_3xxx_data.c
>> @@ -32,6 +32,7 @@
>> */
>>
>> #include "powerdomain.h"
>> +#include "powerdomain-private.h"
>>
>> #include "prcm-common.h"
>> #include "prm.h"
>> diff --git a/arch/arm/mach-omap2/powerdomains2xxx_data.c
>> b/arch/arm/mach-omap2/powerdomains2xxx_data.c
>> index 2385c1f..170462f 100644
>> --- a/arch/arm/mach-omap2/powerdomains2xxx_data.c
>> +++ b/arch/arm/mach-omap2/powerdomains2xxx_data.c
>> @@ -15,6 +15,7 @@
>> #include<linux/init.h>
>>
>> #include "powerdomain.h"
>> +#include "powerdomain-private.h"
>> #include "powerdomains2xxx_3xxx_data.h"
>>
>> #include "prcm-common.h"
>> diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c
>> b/arch/arm/mach-omap2/powerdomains3xxx_data.c
>> index fb0a0a6..9aa847b 100644
>> --- a/arch/arm/mach-omap2/powerdomains3xxx_data.c
>> +++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c
>> @@ -18,6 +18,7 @@
>> #include<plat/cpu.h>
>>
>> #include "powerdomain.h"
>> +#include "powerdomain-private.h"
>> #include "powerdomains2xxx_3xxx_data.h"
>>
>> #include "prcm-common.h"
>> diff --git a/arch/arm/mach-omap2/powerdomains44xx_data.c
>> b/arch/arm/mach-omap2/powerdomains44xx_data.c
>> index 704664c..4f8c9ee 100644
>> --- a/arch/arm/mach-omap2/powerdomains44xx_data.c
>> +++ b/arch/arm/mach-omap2/powerdomains44xx_data.c
>> @@ -23,6 +23,7 @@
>> #include<linux/init.h>
>>
>> #include "powerdomain.h"
>> +#include "powerdomain-private.h"
>>
>> #include "prcm-common.h"
>> #include "prcm44xx.h"
>
>
> --
>
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