Commit 33afeeb1 authored Oct 02, 2018 by Bojun Pan Committed by Gerrit - the friendly Code Review server Oct 03, 2018

msm: ipa: fix clock issue which cause poll_mode out of sync



The pm_activate in irq_rx_schedule_poll can be in progress
and a workqueue will be started to enable NAPI. The NAPI poll and
pm_activate can happen in the same time which will cause the
poll_mode in ipa and gsi out of sync. The fix is to add the
pm_activate_sync in workqueue and make sure the clock enabled
before start NAPI.

Change-Id: Ie7ee843e83817e46f8507bb179dc8fd90b095675
Signed-off-by: Bojun Pan <bojunp@codeaurora.org>

parent 84f39b76

drivers/platform/msm/ipa/ipa_v3/ipa_dp.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1512,6 +1512,8 @@ static void ipa3_wq_handle_rx(struct work_struct *work)
		if (sys->ep->napi_enabled) {
		if (!ipa3_ctx->use_ipa_pm)
		IPA_ACTIVE_CLIENTS_INC_SPECIAL("NAPI");
		else
		ipa_pm_activate_sync(sys->pm_hdl);
		sys->ep->client_notify(sys->ep->priv,
		IPA_CLIENT_START_POLL, 0);
		} else