diff options
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-omap2/pm-debug.c | 27 | ||||
-rw-r--r-- | arch/arm/mach-omap2/pm.h | 4 | ||||
-rw-r--r-- | arch/arm/mach-omap2/pm34xx.c | 22 | ||||
-rw-r--r-- | arch/arm/mach-omap2/serial.c | 2 |
4 files changed, 53 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c index 7eb2c12c8b7c..1725da3f4e18 100644 --- a/arch/arm/mach-omap2/pm-debug.c +++ b/arch/arm/mach-omap2/pm-debug.c @@ -527,6 +527,29 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir) return 0; } +static int option_get(void *data, u64 *val) +{ + u32 *option = data; + + *val = *option; + + return 0; +} + +static int option_set(void *data, u64 val) +{ + u32 *option = data; + + *option = val; + + if (option == &enable_off_mode) + omap3_pm_off_mode_enable(val); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(pm_dbg_option_fops, option_get, option_set, "%llu\n"); + static int __init pm_dbg_init(void) { int i; @@ -569,6 +592,10 @@ 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("sleep_while_idle", S_IRUGO | S_IWUGO, d, + &sleep_while_idle, &pm_dbg_option_fops); pm_dbg_init_done = 1; return 0; diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h index 45cafac716d1..9582793ce82d 100644 --- a/arch/arm/mach-omap2/pm.h +++ b/arch/arm/mach-omap2/pm.h @@ -13,7 +13,11 @@ #include <plat/powerdomain.h> +extern u32 enable_off_mode; +extern u32 sleep_while_idle; + extern void *omap3_secure_ram_storage; +extern void omap3_pm_off_mode_enable(int); extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm); extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state); diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 90d1dc5884ef..ade2e4a6bb7d 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -25,6 +25,7 @@ #include <linux/list.h> #include <linux/err.h> #include <linux/gpio.h> +#include <linux/clk.h> #include <plat/sram.h> #include <plat/clockdomain.h> @@ -57,6 +58,9 @@ #define OMAP343X_TABLE_VALUE_OFFSET 0x30 #define OMAP343X_CONTROL_REG_VALUE_OFFSET 0x32 +u32 enable_off_mode; +u32 sleep_while_idle; + struct power_state { struct powerdomain *pwrdm; u32 next_state; @@ -456,6 +460,8 @@ static int omap3_fclks_active(void) static int omap3_can_sleep(void) { + if (!sleep_while_idle) + return 0; if (!omap_uart_can_sleep()) return 0; if (omap3_fclks_active()) @@ -900,6 +906,22 @@ static void __init prcm_setup_regs(void) omap3_d2d_idle(); } +void omap3_pm_off_mode_enable(int enable) +{ + struct power_state *pwrst; + u32 state; + + if (enable) + state = PWRDM_POWER_OFF; + else + state = PWRDM_POWER_RET; + + list_for_each_entry(pwrst, &pwrst_list, node) { + pwrst->next_state = state; + set_pwrdm_state(pwrst->pwrdm, state); + } +} + int omap3_pm_get_suspend_state(struct powerdomain *pwrdm) { struct power_state *pwrst; diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index a5aecffe03ff..72df1b188135 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -155,8 +155,6 @@ static inline void __init omap_uart_reset(struct omap_uart_state *uart) #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) -static int enable_off_mode; /* to be removed by full off-mode patches */ - static void omap_uart_save_context(struct omap_uart_state *uart) { u16 lcr = 0; |