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| author | Vivek Kutal <vivek.kutal@celunite.com> | 2007-12-11 21:46:31 +0530 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2008-02-08 10:38:01 -0800 |
| commit | 010bb0cf42fe2fa0a00753e0c11a3e8bfefb37a3 (patch) | |
| tree | 2bfa2f5e6d4925344630573922bbb8982727f0ac /arch/arm | |
| parent | 087c50302fbd608118e7c0f27a95dc552ad2f53b (diff) | |
| download | linux-010bb0cf42fe2fa0a00753e0c11a3e8bfefb37a3.tar.gz | |
ARM: OMAP1: PM fixes for OMAP1
This patch does the following: - Fixes the omap_pm_idle() code so that we enter WFI mode in idle. - /sys/power/sleep_while_idle is created only when 32k timer is used Signed-off-by: Vivek Kutal <vivek.kutal@celunite.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap1/pm.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c index 06b7e54a0128..64adb24ffb7f 100644 --- a/arch/arm/mach-omap1/pm.c +++ b/arch/arm/mach-omap1/pm.c @@ -67,6 +67,8 @@ static unsigned int mpui730_sleep_save[MPUI730_SLEEP_SAVE_SIZE]; static unsigned int mpui1510_sleep_save[MPUI1510_SLEEP_SAVE_SIZE]; static unsigned int mpui1610_sleep_save[MPUI1610_SLEEP_SAVE_SIZE]; +#ifdef CONFIG_OMAP_32K_TIMER + static unsigned short enable_dyn_sleep = 1; static ssize_t idle_show(struct kobject *kobj, struct kobj_attribute *attr, @@ -91,6 +93,8 @@ static ssize_t idle_store(struct kobject *kobj, struct kobj_attribute *attr, static struct kobj_attribute sleep_while_idle_attr = __ATTR(sleep_while_idle, 0644, idle_show, idle_store); +#endif + static void (*omap_sram_idle)(void) = NULL; static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL; @@ -104,9 +108,7 @@ void omap_pm_idle(void) { extern __u32 arm_idlect1_mask; __u32 use_idlect1 = arm_idlect1_mask; -#ifndef CONFIG_OMAP_MPU_TIMER - int do_sleep; -#endif + int do_sleep = 0; local_irq_disable(); local_fiq_disable(); @@ -128,7 +130,6 @@ void omap_pm_idle(void) use_idlect1 = use_idlect1 & ~(1 << 9); #else - do_sleep = 0; while (enable_dyn_sleep) { #ifdef CONFIG_CBUS_TAHVO_USB @@ -141,6 +142,8 @@ void omap_pm_idle(void) break; } +#endif + #ifdef CONFIG_OMAP_DM_TIMER use_idlect1 = omap_dm_timer_modify_idlect_mask(use_idlect1); #endif @@ -168,7 +171,6 @@ void omap_pm_idle(void) } omap_sram_suspend(omap_readl(ARM_IDLECT1), omap_readl(ARM_IDLECT2)); -#endif local_fiq_enable(); local_irq_enable(); @@ -661,7 +663,10 @@ static struct platform_suspend_ops omap_pm_ops ={ static int __init omap_pm_init(void) { + +#ifdef CONFIG_OMAP_32K_TIMER int error; +#endif printk("Power Management for TI OMAP.\n"); @@ -719,9 +724,11 @@ static int __init omap_pm_init(void) omap_pm_init_proc(); #endif +#ifdef CONFIG_OMAP_32K_TIMER error = sysfs_create_file(power_kobj, &sleep_while_idle_attr); if (error) printk(KERN_ERR "sysfs_create_file failed: %d\n", error); +#endif if (cpu_is_omap16xx()) { /* configure LOW_PWR pin */ |