diff options
| author | Prashanth Bhatta <bhattap@qca.qualcomm.com> | 2015-10-15 20:46:16 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2015-10-16 00:57:47 -0700 |
| commit | 01ae45b557e662b39fcdf41eed2bfc804ae5bd99 (patch) | |
| tree | 28a68dba748427d4b9e9a11130bd29b160f6d8f0 | |
| parent | 4856602f03ec9f5ae78ba8df8c2ae3000a87396d (diff) | |
qcacld: Prevent runtime suspend when recovery initiated
When self recovery initiated, CRASH_INJECT command is sent to
firmware. If firmware crash doesn't reach the host in time then
RuntimePM may kick in and try to suspend the PCIe link. At this
time, firmware might already been crashed just that host missed
the interrupt. Add the logic to prevent the Runtime suspend when
initiating the recovery so that host driver doesn't attempt the
suspend which may not go through and cause stability issues.
Change-Id: Ie8d5fc6aa08e4864fa5f03119c25037f5aeb5cec
CRs-fixed: 924538
| -rw-r--r-- | CORE/VOSS/src/vos_api.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/CORE/VOSS/src/vos_api.c b/CORE/VOSS/src/vos_api.c index cfb24850ff83..43a8afa2c63b 100644 --- a/CORE/VOSS/src/vos_api.c +++ b/CORE/VOSS/src/vos_api.c @@ -2478,6 +2478,7 @@ void vos_trigger_recovery(void) pVosContextType vos_context; tp_wma_handle wma_handle; VOS_STATUS status = VOS_STATUS_SUCCESS; + void *runtime_context = NULL; vos_context = vos_get_global_context(VOS_MODULE_ID_VOSS, NULL); if (!vos_context) { @@ -2494,6 +2495,9 @@ void vos_trigger_recovery(void) return; } + runtime_context = vos_runtime_pm_prevent_suspend_init("vos_recovery"); + vos_runtime_pm_prevent_suspend(runtime_context); + wma_crash_inject(wma_handle, RECOVERY_SIM_SELF_RECOVERY, 0); status = vos_wait_single_event(&wma_handle->recovery_event, @@ -2506,14 +2510,16 @@ void vos_trigger_recovery(void) if (vos_is_logp_in_progress(VOS_MODULE_ID_VOSS, NULL)) { VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, "LOGP is in progress, ignore!"); - return; + goto out; } vos_set_logp_in_progress(VOS_MODULE_ID_VOSS, TRUE); cnss_schedule_recovery_work(); #endif - - return; } + +out: + vos_runtime_pm_allow_suspend(runtime_context); + vos_runtime_pm_prevent_suspend_deinit(runtime_context); } /** |