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Commit f3bbb995 authored by Praveen Kurapati's avatar Praveen Kurapati Committed by Gerrit - the friendly Code Review server
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msm: ipa3: Update channel start as success in flow control state 



Observing race condition when we are starting the channel and
modem trying to offload flow_control on same channel. Add changes
to retrun success if channel state is flow control when trying to
start the channel.

Change-Id: Id254cd0e3e17c74e931d27cb96577224559c091e
Signed-off-by: default avatarPraveen Kurapati <pkurapat@codeaurora.org>
parent 29444f60

drivers/platform/msm/gsi/gsi.c

+4 −2
Original line number Diff line number Diff line
@@ -175,7 +175,8 @@ static void gsi_channel_state_change_wait(unsigned long chan_hdl, 
		}



		if (op == GSI_CH_START) {

			if (curr_state == GSI_CHAN_STATE_STARTED) {

			if (curr_state == GSI_CHAN_STATE_STARTED ||

				curr_state == GSI_CHAN_STATE_FLOW_CONTROL) {

				ctx->state = curr_state;

				return;

			}
@@ -2780,7 +2781,8 @@ int gsi_start_channel(unsigned long chan_hdl) 
		ctx,

		GSI_START_CMD_TIMEOUT_MS, op);



	if (ctx->state != GSI_CHAN_STATE_STARTED) {

	if (ctx->state != GSI_CHAN_STATE_STARTED &&

		ctx->state != GSI_CHAN_STATE_FLOW_CONTROL) {

		/*

		* Hardware returned unexpected status, unexpected

		* hardware state.

drivers/platform/msm/gsi/gsi.h

+1 −0
Original line number Diff line number Diff line
@@ -90,6 +90,7 @@ enum gsi_chan_state { 
	GSI_CHAN_STATE_STARTED = 0x2,

	GSI_CHAN_STATE_STOPPED = 0x3,

	GSI_CHAN_STATE_STOP_IN_PROC = 0x4,

	GSI_CHAN_STATE_FLOW_CONTROL = 0x5,

	GSI_CHAN_STATE_ERROR = 0xf

};