ssb: Turn suspend/resume upside down

Turn the SSB bus suspend mechanism upside down.
Instead of deciding by an internal reference count when to suspend/resume,
let the parent bus call us in their suspend/resume routine.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 8 insertions, 5 deletions

diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index 8644e03cf588..a8ca396f810a 100644
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -260,9 +260,6 @@ struct ssb_bus {
         struct ssb_device devices[SSB_MAX_NR_CORES];
         u8 nr_devices;
 
-        /* Reference count. Number of suspended devices. */
-        u8 suspend_cnt;
-
         /* Software ID number for this bus. */
         unsigned int busnumber;
 
@@ -334,6 +331,13 @@ extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
 
 extern void ssb_bus_unregister(struct ssb_bus *bus);
 
+/* Suspend a SSB bus.
+ * Call this from the parent bus suspend routine. */
+extern int ssb_bus_suspend(struct ssb_bus *bus);
+/* Resume a SSB bus.
+ * Call this from the parent bus resume routine. */
+extern int ssb_bus_resume(struct ssb_bus *bus);
+
 extern u32 ssb_clockspeed(struct ssb_bus *bus);
 
 /* Is the device enabled in hardware? */
diff --git a/include/linux/ssb/ssb_driver_chipcommon.h b/include/linux/ssb/ssb_driver_chipcommon.h
index b548a54ff1f5..7d7e03dcf77c 100644
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -367,8 +367,7 @@ static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
 
 extern void ssb_chipcommon_init(struct ssb_chipcommon *cc);
 
-#include <linux/pm.h>
-extern void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state);
+extern void ssb_chipco_suspend(struct ssb_chipcommon *cc);
 extern void ssb_chipco_resume(struct ssb_chipcommon *cc);
 
 extern void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc,