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disp: msm: sde: add esd check during wr_ptr wait

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Move esd check to write pointer wait instead of during
write pointer timeout. With this change display will avoid
improperly signaling a retire fence and allowing two flushes
to happen within a single vsync in cases where ESD failure
is happening.

Change-Id: I6fbd76a2f6b47d3237039f66a3b1edd1f72a0a1d
Signed-off-by: Samantha Tran <samtran@codeaurora.org>
This commit is contained in:
Samantha Tran
2021-06-14 12:53:26 -07:00
parent eacfafbaed
commit dc56d01f20
2 changed files with 17 additions and 3 deletions
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15
msm/sde/sde_connector.h
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@@ -742,6 +742,21 @@ static inline enum sde_rm_topology_name sde_connector_get_old_topology_name(
return c_state->old_topology_name;
}
/**
* sde_connector_panel_dead - check if panel is dead
* @conn: pointer to drm connector
* Returns: bool indicating whether or not panel is dead based on connector
*/
static inline bool sde_connector_panel_dead(struct drm_connector *conn)
{
struct sde_connector *sde_conn = to_sde_connector(conn);
if (!sde_conn)
return true;
return sde_conn->panel_dead;
}
/**
* sde_connector_set_old_topology_name - helper to cache value of previous
* mode's topology

5
msm/sde/sde_encoder_phys_cmd.c
View File

@@ -1449,7 +1449,7 @@ static int _sde_encoder_phys_cmd_wait_for_wr_ptr(
if (ctl && ctl->ops.get_start_state)
frame_pending = ctl->ops.get_start_state(ctl);
ret = frame_pending ? ret : 0;
ret = (frame_pending || sde_connector_esd_status(phys_enc->connector)) ? ret : 0;
/*
* There can be few cases of ESD where CTL_START is cleared but
@@ -1521,8 +1521,7 @@ static int _sde_encoder_phys_cmd_handle_wr_ptr_timeout(
SDE_EVT32(DRMID(phys_enc->parent), switch_te, SDE_EVTLOG_FUNC_ENTRY);
if (sde_connector_esd_status(phys_enc->connector)) {
/* watchdog TE already set on esd status check failure */
if (sde_connector_panel_dead(phys_enc->connector)) {
ret = _sde_encoder_phys_cmd_wait_for_wr_ptr(phys_enc);
} else if (switch_te) {
SDE_DEBUG_CMDENC(cmd_enc,