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msm: ipa: add safety SSR check for QMI message handling

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When QMI_IPA_INIT_MODEM_DRIVER_REQ_V01 message is sent just before
modem crash there is no gurantee we will get proper response to
handle gracefully. Make use of remoteproc notifications to
handle the timeout gracefully when in SSR condition.

Change-Id: Icdf90ab2abcba9ab01f9e3bc9be9c32686e2d172
Signed-off-by: Chaitanya Pratapa <quic_cpratapa@quicinc.com>
This commit is contained in:
Chaitanya Pratapa
2022-07-07 10:48:08 -07:00
committed by Gerrit - the friendly Code Review server
parent c32f794de9
commit d733f3f036
1 changed files with 2 additions and 1 deletions
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3
drivers/platform/msm/ipa/ipa_v3/ipa_qmi_service.c
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@@ -1767,7 +1767,8 @@ static void ipa3_q6_clnt_svc_arrive(struct work_struct *work)
/* Initialize modem IPA-driver */
IPAWANDBG("send ipa3_qmi_init_modem_send_sync_msg to modem\n");
rc = ipa3_qmi_init_modem_send_sync_msg();
if ((rc == -ENETRESET) || (rc == -ENODEV) || (rc == -ECONNRESET)) {
if ((rc == -ENETRESET) || (rc == -ENODEV) || (rc == -ECONNRESET) ||
atomic_read(&ipa3_ctx->is_ssr)) {
IPAWANERR(
"ipa3_qmi_init_modem_send_sync_msg failed due to SSR!\n");
/* Cleanup when ipa3_wwan_remove is called */