[PATCH v3 2/5] ACPI: bus master reload not supported in reduced HW mode

[al.stone at linaro.org]

From: Al Stone <al.stone at linaro.org>

Remove the saving and restoring of 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 at linaro.org>
---
 drivers/acpi/processor_idle.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 597cdab..8b48c08 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -202,7 +202,7 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr,
 
 #endif
 
-#ifdef CONFIG_PM_SLEEP
+#if (IS_ENABLED(CONFIG_PM_SLEEP) && !IS_ENABLED(CONFIG_ACPI_REDUCED_HARDWARE))
 static u32 saved_bm_rld;
 
 static int acpi_processor_suspend(void)
@@ -236,7 +236,10 @@ void acpi_processor_syscore_exit(void)
 {
 	unregister_syscore_ops(&acpi_processor_syscore_ops);
 }
-#endif /* CONFIG_PM_SLEEP */
+#else
+void acpi_processor_syscore_init(void) { return; }
+void acpi_processor_syscore_exit(void) { return; }
+#endif
 
 #if defined(CONFIG_X86)
 static void tsc_check_state(int state)
-- 
1.8.3.1