exynos_enter_aftr() is called by coupled CPU idle code every time CPU
enters idle state, what can be considered as a hot path. Replace
of_machine_is_compatible() call with a simple SoC revision check.
of_machine_is_compatible() function performs a dozen of string comparisons
during the full device tree walk, while soc_is_exynos4412() is a simple
integer check on SoC revision variable.
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
arch/arm/mach-exynos/pm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index a1055a2b8d54..a822c5073715 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -163,7 +163,7 @@ void exynos_enter_aftr(void)
exynos_pm_central_suspend();
- if (of_machine_is_compatible("samsung,exynos4412")) {
+ if (soc_is_exynos4412()) {
/* Setting SEQ_OPTION register */
pmu_raw_writel(S5P_USE_STANDBY_WFI0 | S5P_USE_STANDBY_WFE0,
S5P_CENTRAL_SEQ_OPTION);
--
2.15.0
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