[PATCH 14/19] Revert "drm/amd/display: Don't allow IPS2 in D0 for RCG Dynamic"

[Aurabindo Pillai]

From: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>

This reverts commit 4ac57a450da3.

In some test environments causes reporting failures for S0i3/S4.

It shouldn't actually block entry provided there's no race with the
last state being updated, but currently suspecting there's an IPS2
check that's no longer being met.

Fixes: 4ac57a450da3("drm/amd/display: Don't allow IPS2 in D0 for RCG Dynamic")
Reviewed-by: Ovidiu Bunea <ovidiu.bunea at amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 5 +----
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h | 1 -
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
index 2c3672c41163..775c58637f46 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
@@ -1313,8 +1313,7 @@ static void dc_dmub_srv_notify_idle(const struct dc *dc, bool allow_idle)
 			new_signals.bits.allow_ips2 = 1;
 		} else if (dc->config.disable_ips == DMUB_IPS_RCG_IN_ACTIVE_IPS2_IN_OFF) {
 			/* TODO: Move this logic out to hwseq */
-			if (dc_dmub_srv->last_power_state == DC_ACPI_CM_POWER_STATE_D3 &&
-			    count_active_streams(dc) == 0) {
+			if (count_active_streams(dc) == 0) {
 				/* IPS2 - Display off */
 				new_signals.bits.allow_pg = 1;
 				new_signals.bits.allow_ips1 = 1;
@@ -1518,8 +1517,6 @@ void dc_dmub_srv_notify_fw_dc_power_state(struct dc_dmub_srv *dc_dmub_srv,
 	}
 
 	dc_wake_and_execute_dmub_cmd(dc_dmub_srv->ctx, &cmd, DM_DMUB_WAIT_TYPE_WAIT);
-
-	dc_dmub_srv->last_power_state = power_state;
 }
 
 bool dc_dmub_srv_should_detect(struct dc_dmub_srv *dc_dmub_srv)
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h
index 4763e652c9c7..10b48198b7a6 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h
@@ -56,7 +56,6 @@ struct dc_dmub_srv {
 	union dmub_shared_state_ips_driver_signals driver_signals;
 	bool idle_allowed;
 	bool needs_idle_wake;
-	enum dc_acpi_cm_power_state last_power_state;
 };
 
 void dc_dmub_srv_wait_idle(struct dc_dmub_srv *dc_dmub_srv);
-- 
2.47.1