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mfd: Update db8500-prmcu hostport_access enable

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Force the Modem wakeup by asserting the CaWakeReq signal before the
hostaccess_req/ack ping-pong sequence. The Awake_req signal is de-asserted
asserted at the same time than the hostaccess_req. Return error on failure
case so that the client using this can take appropiate steps.

Signed-off-by: Arun Murthy <arun.murthy@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Arun Murthy
2012-05-21 14:28:21 +05:30
committed by Samuel Ortiz
parent 19d57ed5a3
commit 5261e10119
4 changed files with 30 additions and 30 deletions
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drivers/mfd/dbx500-prcmu-regs.h
+1
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@@ -106,6 +106,7 @@
#define PRCM_HOSTACCESS_REQ (_PRCMU_BASE + 0x334)
#define PRCM_HOSTACCESS_REQ_HOSTACCESS_REQ 0x1
#define PRCM_HOSTACCESS_REQ_WAKE_REQ BIT(16)
#define ARM_WAKEUP_MODEM 0x1
#define PRCM_ARM_IT1_CLR (_PRCMU_BASE + 0x48C)