> -----Original Message-----
> From: Gulati, Shweta
> Sent: Wednesday, March 24, 2010 7:17 PM
> To: linux-omap@xxxxxxxxxxxxxxx
> Cc: Gulati, Shweta; Sripathy, Vishwanath
> Subject: [PATCH L23.I3 PM 1/2 ]: To put all the powerdomains in OFF mode instead
> of Ret
Subject should not have TI internal release names.
Also Cover letter for the patch series is missing
>
> From: Shweta Gulati <shweta.gulati@xxxxxx>
>
> According to Defect OMAPS00210499 CAM, DSS and USBHOST should stay
> in OFF state instead of Retention in OS Idle Path.
> This Patch puts all the powerdomain in OFF state by default
> in pm init code and ensures that Mpu next state is OFF only
> before it goes to Suspend/Idle.
>
> Signed-off-by: Vishwanath BS <Vishwanath.bs@xxxxxx>
> Signed-off-by: Shweta Gulati <shweta.gulati@xxxxxx>
> ---
>
> Index: kernel-omap3-dev/arch/arm/mach-omap2/cpuidle34xx.c
> =====================================================
> ==============
> --- kernel-omap3-dev.orig/arch/arm/mach-omap2/cpuidle34xx.c
> +++ kernel-omap3-dev/arch/arm/mach-omap2/cpuidle34xx.c
> @@ -144,11 +144,14 @@ static int omap3_enter_idle(struct cpuid
> local_irq_disable();
> local_fiq_disable();
>
> - if (!enable_off_mode) {
> + if (disable_off_mode) {
> if (mpu_state < PWRDM_POWER_RET)
> mpu_state = PWRDM_POWER_RET;
> if (core_state < PWRDM_POWER_RET)
> core_state = PWRDM_POWER_RET;
> + } else {
> + mpu_state = PWRDM_POWER_OFF;
> + core_state = PWRDM_POWER_OFF;
> }
>
> /* For any state above inactive set the logic and memory retention
> Index: kernel-omap3-dev/arch/arm/mach-omap2/pm-debug.c
> =====================================================
> ==============
> --- kernel-omap3-dev.orig/arch/arm/mach-omap2/pm-debug.c
> +++ kernel-omap3-dev/arch/arm/mach-omap2/pm-debug.c
> @@ -548,7 +548,7 @@ static int option_set(void *data, u64 va
>
> *option = val;
>
> - if (option == &enable_off_mode)
> + if (option == &disable_off_mode)
> omap3_pm_off_mode_enable(val);
> return 0;
> }
> @@ -597,8 +597,8 @@ static int __init pm_dbg_init(void)
>
> }
>
> - (void) debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUGO, d,
> - &enable_off_mode, &pm_dbg_option_fops);
> + (void) debugfs_create_file("disable_off_mode", S_IRUGO | S_IWUGO, d,
> + &disable_off_mode, &pm_dbg_option_fops);
> (void) debugfs_create_file("sleep_while_idle", S_IRUGO | S_IWUGO, d,
> &sleep_while_idle, &pm_dbg_option_fops);
> (void) debugfs_create_file("enable_oswr", S_IRUGO | S_IWUGO, d,
> Index: kernel-omap3-dev/arch/arm/mach-omap2/pm.h
> =====================================================
> ==============
> --- kernel-omap3-dev.orig/arch/arm/mach-omap2/pm.h
> +++ kernel-omap3-dev/arch/arm/mach-omap2/pm.h
> @@ -13,7 +13,7 @@
>
> #include <plat/powerdomain.h>
>
> -extern u32 enable_off_mode;
> +extern u32 disable_off_mode;
> extern u32 sleep_while_idle;
> extern u32 enable_oswr;
> extern u32 voltage_off_while_idle;
> Index: kernel-omap3-dev/arch/arm/mach-omap2/pm34xx.c
> =====================================================
> ==============
> --- kernel-omap3-dev.orig/arch/arm/mach-omap2/pm34xx.c
> +++ kernel-omap3-dev/arch/arm/mach-omap2/pm34xx.c
> @@ -75,7 +75,7 @@ static inline bool is_suspending(void)
> #define OMAP3630_EFUSE_CNTRL 0x48002A8C
> #define ABO_LDO_TRANXDONE_TIMEOUT 100
>
> -u32 enable_off_mode;
> +u32 disable_off_mode;
> u32 sleep_while_idle;
> u32 enable_oswr;
> u32 wakeup_timer_seconds;
> @@ -1197,15 +1197,15 @@ static void __init prcm_setup_regs(void)
> omap3_d2d_idle();
> }
>
> -void omap3_pm_off_mode_enable(int enable)
> +void omap3_pm_off_mode_enable(int disable)
> {
> struct power_state *pwrst;
> u32 state;
>
> - if (enable)
> - state = PWRDM_POWER_OFF;
> - else
> + if (disable)
> state = PWRDM_POWER_RET;
> + else
> + state = PWRDM_POWER_OFF;
>
> #ifdef CONFIG_OMAP_PM_SRF
> resource_lock_opp(VDD1_OPP);
> @@ -1303,7 +1303,8 @@ static int __init pwrdms_setup(struct po
> if (!pwrst)
> return -ENOMEM;
> pwrst->pwrdm = pwrdm;
> - if (strcmp("iva2_pwrdm", pwrdm->name))
> + if (!strcmp("mpu_pwrdm", pwrdm->name) ||
> + !strcmp("core_pwrdm", pwrdm->name))
> pwrst->next_state = PWRDM_POWER_RET;
> else
> pwrst->next_state = PWRDM_POWER_OFF;
> Index: kernel-omap3-dev/arch/arm/mach-omap2/resource34xx.c
> =====================================================
> ==============
> --- kernel-omap3-dev.orig/arch/arm/mach-omap2/resource34xx.c
> +++ kernel-omap3-dev/arch/arm/mach-omap2/resource34xx.c
> @@ -106,7 +106,7 @@ void init_pd_latency(struct shared_resou
> struct pd_latency_db *pd_lat_db;
>
> resp->no_of_users = 0;
> - if (enable_off_mode)
> + if (!disable_off_mode)
> resp->curr_level = PD_LATENCY_OFF;
> else
> resp->curr_level = PD_LATENCY_RET;
> @@ -144,7 +144,7 @@ int set_pd_latency(struct shared_resourc
> }
> }
>
> - if (!enable_off_mode && pd_lat_level == PD_LATENCY_OFF)
> + if (disable_off_mode && pd_lat_level == PD_LATENCY_OFF)
> pd_lat_level = PD_LATENCY_RET;
>
> resp->curr_level = pd_lat_level;
--
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