This patch adds configurable wakeup timer support in suspend. Also for statistics pm counter support is added.
Signed-off-by: Santosh Shilimkar <[email protected]> Cc: Kevin Hilman <[email protected]> --- arch/arm/mach-omap2/omap4-mpuss-lowpower.c | 4 ++++ arch/arm/mach-omap2/pm-debug.c | 10 ++++++++-- arch/arm/mach-omap2/pm44xx.c | 5 +++++ 3 files changed, 17 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/omap4-mpuss-lowpower.c b/arch/arm/mach-omap2/omap4-mpuss-lowpower.c index 7348d29..3cd9e8b 100644 --- a/arch/arm/mach-omap2/omap4-mpuss-lowpower.c +++ b/arch/arm/mach-omap2/omap4-mpuss-lowpower.c @@ -289,6 +289,8 @@ int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state) if (cpu) goto cpu_prepare; + pwrdm_pre_transition(); + /* * Check MPUSS next state and save GIC if needed * GIC lost during MPU OFF and OSWR @@ -334,6 +336,8 @@ cpu_prepare: gic_dist_enable(); } + pwrdm_post_transition(); + ret: return 0; } diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c index 34f0e5d..c83a0f6 100644 --- a/arch/arm/mach-omap2/pm-debug.c +++ b/arch/arm/mach-omap2/pm-debug.c @@ -606,9 +606,11 @@ static int __init pm_dbg_init(void) if (pm_dbg_init_done) return 0; - if (cpu_is_omap34xx()) + if (cpu_is_omap34xx()) { pm_dbg_reg_modules = omap3_pm_reg_modules; - else { + } else if (cpu_is_omap44xx()) { + /* Allow pm_dbg_init on OMAP4. */ + } else { printk(KERN_ERR "%s: only OMAP3 supported\n", __func__); return -ENODEV; } @@ -624,6 +626,9 @@ static int __init pm_dbg_init(void) pwrdm_for_each(pwrdms_setup, (void *)d); + if (cpu_is_omap44xx()) + goto skip_reg_debufs; + pm_dbg_dir = debugfs_create_dir("registers", d); if (IS_ERR(pm_dbg_dir)) return PTR_ERR(pm_dbg_dir); @@ -638,6 +643,7 @@ static int __init pm_dbg_init(void) pm_dbg_dir, (void *)(i+1), &debug_reg_fops); } +skip_reg_debufs: (void) debugfs_create_file("enable_off_mode", S_IRUGO | S_IWUSR, d, &enable_off_mode, &pm_dbg_option_fops); diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index 0d1f33a..14d4229 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -41,6 +41,11 @@ static int omap4_pm_suspend(void) int state, ret = 0; u32 cpu_id = smp_processor_id(); + /* Wakeup timer from suspend */ + if (wakeup_timer_seconds || wakeup_timer_milliseconds) + omap2_pm_wakeup_on_timer(wakeup_timer_seconds, + wakeup_timer_milliseconds); + /* Save current powerdomain state */ list_for_each_entry(pwrst, &pwrst_list, node) { pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm); -- 1.6.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
