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disp: msm: dp: send dp hpd notification from attention_work

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The hpd notification is skipped in connect_work if there is an
attention_work pending. So, the notification has to be sent in
attention_work.

Some dongles issue multiple attention events with LINK_STATUS_UPDATED
while the connect_work is in progress. So, once the link training
is successfully completed the LINK_STATUS_UPDATED attention event is
considered handled and the attention_work scheduled to execute after
the connect_work will return early without handling the
hpd_notification cases.

This change will ensure the hpd_notification is sent from
attention_work in such cases.

Change-Id: I5ef6781354b80842d2a6f44360cde25ee6d2b0b7
Signed-off-by: Sankeerth Billakanti <sbillaka@codeaurora.org>
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
This commit is contained in:
Sankeerth Billakanti
2020-02-04 16:40:55 +05:30
committed by Tatenda Chipeperekwa
parent 9ee6c22331
commit d7bc0eebfe
1 changed files with 13 additions and 11 deletions
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24
msm/dp/dp_display.c
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@@ -1408,23 +1408,25 @@ static void dp_display_attention_work(struct work_struct *work)
mutex_unlock(&dp->session_lock); mutex_unlock(&dp->session_lock);
if (dp->link->sink_request & (DP_TEST_LINK_PHY_TEST_PATTERN | if (dp->link->sink_request & (DP_TEST_LINK_PHY_TEST_PATTERN |
DP_TEST_LINK_TRAINING)) { DP_TEST_LINK_TRAINING))
goto mst_attention; goto mst_attention;
} else {
/*
* It is possible that the connect_work skipped sending
* the HPD notification if the attention message was
* already pending. Send the notification here to
* account for that. This is not needed if this
* attention work was handling a test request
*/
dp_display_send_hpd_notification(dp);
}
} }
cp_irq: cp_irq:
if (dp_display_is_hdcp_enabled(dp) && dp->hdcp.ops->cp_irq) if (dp_display_is_hdcp_enabled(dp) && dp->hdcp.ops->cp_irq)
dp->hdcp.ops->cp_irq(dp->hdcp.data); dp->hdcp.ops->cp_irq(dp->hdcp.data);
if (!dp->mst.mst_active) {
/*
* It is possible that the connect_work skipped sending
* the HPD notification if the attention message was
* already pending. Send the notification here to
* account for that. This is not needed if this
* attention work was handling a test request
*/
dp_display_send_hpd_notification(dp);
}
mst_attention: mst_attention:
dp_display_mst_attention(dp); dp_display_mst_attention(dp);
SDE_EVT32_EXTERNAL(SDE_EVTLOG_FUNC_EXIT, dp->state); SDE_EVT32_EXTERNAL(SDE_EVTLOG_FUNC_EXIT, dp->state);