The new CPU Idle driver has all necessary features in order to allow
the deepest idling state on Tegra30 SoC where the whole CPU cluster is
power-gated using the coupled idle state.
Signed-off-by: Dmitry Osipenko <dig...@gmail.com>
---
Please note that outer_disable() has a WARN_ON(num_online_cpus > 1)
and it doesn't know that we turned off those secondary CPUs, hence the
outer_cache.disable() is now invoked directly.
arch/arm/mach-tegra/pm.c | 4 ++--
drivers/cpuidle/cpuidle-tegra.c | 4 +---
2 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c
index f9c9bce9e15d..cc941b0c97e8 100644
--- a/arch/arm/mach-tegra/pm.c
+++ b/arch/arm/mach-tegra/pm.c
@@ -146,8 +146,8 @@ static int tegra_sleep_cpu(unsigned long v2p)
* if any of secondary CPU's is online and this is the LP2-idle
* code-path only for Tegra20/30.
*/
- if (trusted_foundations_registered())
- outer_disable();
+ if (trusted_foundations_registered() && outer_cache.disable)
+ outer_cache.disable();
/*
* Note that besides of setting up CPU reset vector this firmware
diff --git a/drivers/cpuidle/cpuidle-tegra.c b/drivers/cpuidle/cpuidle-tegra.c
index 3fad4a0cbc78..31eeef22c0ff 100644
--- a/drivers/cpuidle/cpuidle-tegra.c
+++ b/drivers/cpuidle/cpuidle-tegra.c
@@ -202,10 +202,8 @@ static int tegra_cpuidle_probe(struct platform_device
*pdev)
switch (tegra_get_chip_id()) {
case TEGRA20:
tegra_idle_driver.states[1].disabled = true;
- tegra_idle_driver.states[3].disabled = true;
- break;
+ /* fall through */
case TEGRA30:
- tegra_idle_driver.states[2].disabled = true;
tegra_idle_driver.states[3].disabled = true;
break;
case TEGRA114:
--
2.22.0
