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msm:ipa: stop UL IPA TX channel at the end of the probe

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Stop UL MHIP IPA TX channel at end of the probe
if there is no active tethering. This will make sure no Uplink data is
sent when Device side is not prepared to take data.

Change-Id: Id37c0c7eb8270bdf4806265c75780951ae7394c3
Signed-off-by: Michael Adisumarta <madisuma@codeaurora.org>
This commit is contained in:
Michael Adisumarta 2019-11-04 12:49:25 -08:00 • committed by Gerrit - the friendly Code Review server
commit e5f9bb8d59
1 changed files with 10 additions and 2 deletions
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12
drivers/platform/msm/ipa/ipa_v3/ipa_mpm.c
View file

@ -2309,16 +2309,24 @@ static int ipa_mpm_mhi_probe_cb(struct mhi_device *mhi_dev,
}
if (ul_prod != IPA_CLIENT_MAX) {
/* No teth started yet, disable UL channel */
ipa_ep_idx = ipa3_get_ep_mapping(ul_prod);
if (ipa_ep_idx == IPA_EP_NOT_ALLOCATED) {
IPA_MPM_ERR("fail to alloc EP.\n");
goto fail_stop_channel;
}
ret = ipa3_stop_gsi_channel(ipa_ep_idx);
if (ret) {
IPA_MPM_ERR("MHIP Stop channel err = %d\n",
ret);
goto fail_stop_channel;
}
ipa_mpm_change_gsi_state(probe_id,
IPA_MPM_MHIP_CHAN_UL,
GSI_STOPPED);
}
if (is_acted)
ipa_mpm_vote_unvote_pcie_clk(CLK_OFF, probe_id, true,
&is_acted);
ipa_mpm_vote_unvote_pcie_clk(CLK_OFF, probe_id,
true, &is_acted);
break;
case IPA_MPM_TETH_INPROGRESS:
case IPA_MPM_TETH_CONNECTED: