diff options
| author | Arun Murthy <arun.murthy@stericsson.com> | 2012-02-08 18:57:14 +0530 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-06-05 10:40:30 +0200 |
| commit | e8c5dd0c5b4ea6ffb4797d993c47c55b1ff13efe (patch) | |
| tree | fa1a38d9092fd4438121e8468dee446f44785697 | |
| parent | 29b8dd738210a2bcf1ddc5f4c07c71323a375af0 (diff) | |
u8500-shrm: check for modem awake along with hostaccess_port
Before writing to GOP we mush ensure that hostaccess_port is high. Along with
that its better to check the modem awake status, to confirm that modem is awake
and we dont end up with a freeze on writing to GOP.
ST-Ericsson Linux next: NA
ST-Ericsson ID: 413508
ST-Ericsson FOSS-OUT ID: Trivial
Change-Id: Ia1bfa7adb8b472745f53ddd03878f25b3ed62375
Signed-off-by: Arun Murthy <arun.murthy@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/48277
Reviewed-by: QABUILD
Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
| -rw-r--r-- | drivers/modem/shrm/shrm_protocol.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/modem/shrm/shrm_protocol.c b/drivers/modem/shrm/shrm_protocol.c index e3daeda4348..fa4251cdbbd 100644 --- a/drivers/modem/shrm/shrm_protocol.c +++ b/drivers/modem/shrm/shrm_protocol.c @@ -35,8 +35,12 @@ #define MAX_PAYLOAD 1024 #define MOD_STUCK_TIMEOUT 6 #define FIFO_FULL_TIMEOUT 1 +#define PRCM_MOD_AWAKE_STATUS_PRCM_MOD_COREPD_AWAKE BIT(0) +#define PRCM_MOD_AWAKE_STATUS_PRCM_MOD_AAPD_AWAKE BIT(1) +#define PRCM_MOD_AWAKE_STATUS_PRCM_MOD_VMODEM_OFF_ISO BIT(2) #define PRCM_HOSTACCESS_REQ 0x334 +#define PRCM_MOD_AWAKE_STATUS 0x4A0 static u8 boot_state = BOOT_INIT; static u8 recieve_common_msg[8*1024]; @@ -127,10 +131,14 @@ static void shm_ac_wake_req_work(struct kthread_work *work) static u32 get_host_accessport_val(void) { u32 prcm_hostaccess; + u32 status; + status = (prcmu_read(PRCM_MOD_AWAKE_STATUS) & 0x03); prcm_hostaccess = prcmu_read(PRCM_HOSTACCESS_REQ); wmb(); - prcm_hostaccess = prcm_hostaccess & 0x01; + prcm_hostaccess = (prcm_hostaccess & 0x01) && + (status == (PRCM_MOD_AWAKE_STATUS_PRCM_MOD_AAPD_AWAKE | + PRCM_MOD_AWAKE_STATUS_PRCM_MOD_COREPD_AWAKE)); return prcm_hostaccess; } |