cpuidle: tegra: Disable CC6 state if LP2 unavailable (382ac8e2) · Commits · 戴 / test

LP2 suspending could be unavailable, for example if it is disabled in a device-tree. CC6 cpuidle state won't work in that case. Acked-by:

drivers/cpuidle/cpuidle-tegra.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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>
		@@ -337,6 +338,10 @@ 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_cpuidle_disable_state(TEGRA_CC6);

		/*
		* Required suspend-resume functionality, which is provided by the
		* Tegra-arch core and PMC driver, is unavailable if PM-sleep option