LP2 suspending could be unavailable, for example if it is disabled in a device-tree. CC6 cpuidle state won't work in that case. Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx> --- drivers/cpuidle/cpuidle-tegra.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/cpuidle/cpuidle-tegra.c b/drivers/cpuidle/cpuidle-tegra.c index bbd7999a3910..077ff15e32fb 100644 --- a/drivers/cpuidle/cpuidle-tegra.c +++ b/drivers/cpuidle/cpuidle-tegra.c @@ -31,6 +31,7 @@ #include <soc/tegra/fuse.h> #include <soc/tegra/irq.h> #include <soc/tegra/pm.h> +#include <soc/tegra/pmc.h> #include <asm/cpuidle.h> #include <asm/firmware.h> @@ -325,6 +326,10 @@ static void tegra_cpuidle_setup_tegra114_c7_state(void) static int tegra_cpuidle_probe(struct platform_device *pdev) { + /* LP2 could be disabled in device-tree */ + if (tegra_pmc_get_suspend_mode() < TEGRA_SUSPEND_LP2) + tegra_idle_driver.states[TEGRA_CC6].disabled = true; + /* * Required suspend-resume functionality, which is provided by the * Tegra-arch core and PMC driver, is unavailable if PM-sleep option -- 2.24.0