From fe617af716bc09cbbdd11ad820d5818017a9f481 Mon Sep 17 00:00:00 2001 From: Peter 'p2' De Schrijver Date: Wed, 15 Oct 2008 17:48:44 +0300 Subject: OMAP: PM: Hook into PM counters This patch modifies the clock, clockdomain and OMAP3 specific powerdomain code to call the PM counter infrastructure whenever one or more powerdomains might have changed state. Signed-off-by: Peter 'p2' De Schrijver Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/arm/mach-omap2/pm34xx.c') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 488d595..f197624 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -170,6 +170,8 @@ static void omap_sram_idle(void) printk(KERN_ERR "Invalid mpu state in sram_idle\n"); return; } + pwrdm_pre_transition(); + omap2_gpio_prepare_for_retention(); omap_uart_prepare_idle(0); omap_uart_prepare_idle(1); @@ -182,6 +184,9 @@ static void omap_sram_idle(void) omap_uart_resume_idle(1); omap_uart_resume_idle(0); omap2_gpio_resume_after_retention(); + + pwrdm_post_transition(); + } /* @@ -271,6 +276,7 @@ static int set_pwrdm_state(struct powerdomain *pwrdm, u32 state) if (sleep_switch) { omap2_clkdm_allow_idle(pwrdm->pwrdm_clkdms[0]); pwrdm_wait_transition(pwrdm); + pwrdm_state_switch(pwrdm); } err: -- cgit v1.1 From a23456e9b02b3fae0fc78cb33fad69803a50e5bc Mon Sep 17 00:00:00 2001 From: Peter 'p2' De Schrijver Date: Wed, 15 Oct 2008 18:13:47 +0300 Subject: OMAP: PM: Add closures to clkdm_for_each and pwrdm_for_each. Add some infrastructure to easily iterate over clock and power domains. Signed-off-by: Peter 'p2' De Schrijver Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/arm/mach-omap2/pm34xx.c') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index f197624..331dfca 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -664,7 +664,7 @@ static void __init prcm_setup_regs(void) omap3_d2d_idle(); } -static int __init pwrdms_setup(struct powerdomain *pwrdm) +static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) { struct power_state *pwrst; @@ -689,7 +689,7 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm) * supported. Initiate sleep transition for other clockdomains, if * they are not used */ -static int __init clkdms_setup(struct clockdomain *clkdm) +static int __init clkdms_setup(struct clockdomain *clkdm, void *unused) { if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO) omap2_clkdm_allow_idle(clkdm); @@ -722,13 +722,13 @@ static int __init omap3_pm_init(void) goto err1; } - ret = pwrdm_for_each(pwrdms_setup); + ret = pwrdm_for_each(pwrdms_setup, NULL); if (ret) { printk(KERN_ERR "Failed to setup powerdomains\n"); goto err2; } - (void) clkdm_for_each(clkdms_setup); + (void) clkdm_for_each(clkdms_setup, NULL); mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); if (mpu_pwrdm == NULL) { -- cgit v1.1 From 68d4778c701b7e22ddfd64e3afb6628c92718ad2 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Wed, 26 Nov 2008 12:26:24 +0200 Subject: OMAP: PM: Added suspend target state control to debugfs for OMAP3 Target state can be read / programmed via files under: [debugfs]/pm_debug/[pwrdm]/suspend Signed-off-by: Tero Kristo Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'arch/arm/mach-omap2/pm34xx.c') diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 331dfca..26f2aca 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -664,6 +664,30 @@ static void __init prcm_setup_regs(void) omap3_d2d_idle(); } +int omap3_pm_get_suspend_state(struct powerdomain *pwrdm) +{ + struct power_state *pwrst; + + list_for_each_entry(pwrst, &pwrst_list, node) { + if (pwrst->pwrdm == pwrdm) + return pwrst->next_state; + } + return -EINVAL; +} + +int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state) +{ + struct power_state *pwrst; + + list_for_each_entry(pwrst, &pwrst_list, node) { + if (pwrst->pwrdm == pwrdm) { + pwrst->next_state = state; + return 0; + } + } + return -EINVAL; +} + static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused) { struct power_state *pwrst; -- cgit v1.1