[v6,2/6] ACPI: bus master reload not supported in reduced HW mode

Message ID 1389394340-2680-3-git-send-email-al.stone@linaro.org
State New
Headers show

Commit Message

Al Stone Jan. 10, 2014, 10:52 p.m.
From: Al Stone <al.stone@linaro.org>

Do not save and restore bus master reload registers in suspend/resume
when in reduced HW mode; according to the spec, no such registers should
exist

Signed-off-by: Al Stone <al.stone@linaro.org>
---
 drivers/acpi/processor_idle.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Patch

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 597cdab..eac984a 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -229,12 +229,14 @@  static struct syscore_ops acpi_processor_syscore_ops = {
 
 void acpi_processor_syscore_init(void)
 {
-	register_syscore_ops(&acpi_processor_syscore_ops);
+	if (!acpi_gbl_reduced_hardware)
+		register_syscore_ops(&acpi_processor_syscore_ops);
 }
 
 void acpi_processor_syscore_exit(void)
 {
-	unregister_syscore_ops(&acpi_processor_syscore_ops);
+	if (!acpi_gbl_reduced_hardware)
+		unregister_syscore_ops(&acpi_processor_syscore_ops);
 }
 #endif /* CONFIG_PM_SLEEP */