diff options
| author | Alex Frid <afrid@nvidia.com> | 2011-09-30 21:27:37 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:49:12 -0800 |
| commit | 0d1215e34724bf9e4db329e818d699f5d11986ac (patch) | |
| tree | a4b87d7383fc993bd2f4a2f8ada318902ca87d1f /arch/arm/mach-tegra/cpuidle-t3.c | |
| parent | be98d35b06c52310e8a5cdb22f0ba454c30313c2 (diff) | |
ARM: tegra: power: Add Tegra3 cpu idle parameters
Add Tegra3 cpu idle parameters: lp2_0_in_idle and lp_n_in_idle
to independently control LP2 mode for boot and secondary cpus.
Change-Id: I7e526b9bd78a9d5c3235307bbc89f5fb507bec2b
Reviewed-on: http://git-master/r/55630
Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
Tested-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Scott Williams <scwilliams@nvidia.com>
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>
Rebase-Id: Rc6a468b2e9e065c344b2386366d5a47d77ddf037
Diffstat (limited to 'arch/arm/mach-tegra/cpuidle-t3.c')
| -rw-r--r-- | arch/arm/mach-tegra/cpuidle-t3.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/cpuidle-t3.c b/arch/arm/mach-tegra/cpuidle-t3.c index 8ef8ed45e8bd..d9645ecb1a0c 100644 --- a/arch/arm/mach-tegra/cpuidle-t3.c +++ b/arch/arm/mach-tegra/cpuidle-t3.c @@ -67,6 +67,12 @@ static s64 tegra_cpu_wake_by_time[4] = { LLONG_MAX, LLONG_MAX, LLONG_MAX, LLONG_MAX }; #endif +static bool lp2_0_in_idle = true; +module_param(lp2_0_in_idle, bool, 0644); + +static bool lp2_n_in_idle = true; +module_param(lp2_n_in_idle, bool, 0644); + static struct clk *cpu_clk_for_dvfs; static struct clk *twd_clk; @@ -117,6 +123,9 @@ bool tegra3_lp2_is_allowed(struct cpuidle_device *dev, if (!tegra_all_cpus_booted) return false; + if ((!lp2_0_in_idle && !dev->cpu) || (!lp2_n_in_idle && dev->cpu)) + return false; + /* On A01, LP2 on slave CPU's cause ranhdom CPU hangs. * Refer to Bug 804085. */ |