diff options
Diffstat (limited to 'arch/arm/mach-vexpress/tc2_pm.c')
| -rw-r--r-- | arch/arm/mach-vexpress/tc2_pm.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c index 8be975e4b31..a5e18df801d 100644 --- a/arch/arm/mach-vexpress/tc2_pm.c +++ b/arch/arm/mach-vexpress/tc2_pm.c @@ -80,7 +80,7 @@ static int tc2_pm_power_up(unsigned int cpu, unsigned int cluster) return 0; } -static void tc2_pm_power_down(void) +static void tc2_pm_down(u64 residency) { unsigned int mpidr, cpu, cluster; bool last_man = false, skip_wfi = false; @@ -101,7 +101,8 @@ static void tc2_pm_power_down(void) vexpress_spc_set_cpu_wakeup_irq(cpu, cluster, 1); if (!tc2_pm_use_count[0][cluster] && !tc2_pm_use_count[1][cluster] && - !tc2_pm_use_count[2][cluster]) { + !tc2_pm_use_count[2][cluster] && + (!residency || residency > 5000)) { vexpress_spc_powerdown_enable(cluster, 1); vexpress_spc_set_global_wakeup_intr(1); last_man = true; @@ -164,6 +165,23 @@ static void tc2_pm_power_down(void) /* Not dead at this point? Let our caller cope. */ } +static void tc2_pm_power_down(void) +{ + tc2_pm_down(0); +} + +static void tc2_pm_suspend(u64 residency) +{ + unsigned int mpidr, cpu, cluster; + + mpidr = read_cpuid_mpidr(); + cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0); + cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); + vexpress_spc_write_bxaddr_reg(cluster, cpu, + virt_to_phys(mcpm_entry_point)); + tc2_pm_down(residency); +} + static void tc2_pm_powered_up(void) { unsigned int mpidr, cpu, cluster; @@ -199,6 +217,7 @@ static void tc2_pm_powered_up(void) static const struct mcpm_platform_ops tc2_pm_power_ops = { .power_up = tc2_pm_power_up, .power_down = tc2_pm_power_down, + .suspend = tc2_pm_suspend, .powered_up = tc2_pm_powered_up, }; |