svn commit: r251606 - head/sys/dev/ath

[Adrian Chadd]

Author: adrian
Date: Mon Jun 10 20:10:34 2013
New Revision: 251606
URL: http://svnweb.freebsd.org/changeset/base/251606

Log:
  Add another comment about WB195 (AR9285+AR3011) when using ASPM.

Modified:
  head/sys/dev/ath/if_ath_btcoex.c

Modified: head/sys/dev/ath/if_ath_btcoex.c
==============================================================================
--- head/sys/dev/ath/if_ath_btcoex.c	Mon Jun 10 17:12:22 2013	(r251605)
+++ head/sys/dev/ath/if_ath_btcoex.c	Mon Jun 10 20:10:34 2013	(r251606)
@@ -134,6 +134,10 @@ ath_btcoex_cfg_wb195(struct ath_softc *s
  * When using bluetooth coexistence, ASPM needs to be disabled
  * otherwise the sleeping interferes with the bluetooth (USB)
  * operation and the MAC sleep/wakeup hardware.
+ *
+ * The PCIe powersave routine also needs to not be called
+ * by the driver during suspend/resume, else things will get
+ * a little odd.  Check Linux ath9k for more details.
  */
 static int
 ath_btcoex_aspm_wb195(struct ath_softc *sc)