From: "JinZe.Xu" <jinze...@amd.com>
[Why]
This disablement would be specific for Nav10 and shouldn’t be propagated to the
other programs.
[How]
Power gating is controlled by driver.
Signed-off-by: JinZe.Xu <jinze...@amd.com>
Reviewed-by: Jun Lei <jun....@amd.com>
Acked-by: Stylon Wang <stylon.w...@amd.com>
---
.../drm/amd/display/dc/dcn302/dcn302_hwseq.c | 34 +++++++------------
1 file changed, 12 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_hwseq.c
b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_hwseq.c
index e8580cccbebf..0a6d58dd8f6d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_hwseq.c
@@ -86,17 +86,12 @@ void dcn302_dpp_pg_control(struct dce_hwseq *hws, unsigned
int dpp_inst, bool po
1, 1000);
break;
case 4: /* DPP4 */
- /*
- * Do not power gate DPP4, should be left at HW default, power
on permanently.
- * PG on Pipe4 is De-featured, attempting to put it to PG state
may result in hard
- * reset.
- * REG_UPDATE(DOMAIN9_PG_CONFIG,
- * DOMAIN9_POWER_GATE, power_gate);
- *
- * REG_WAIT(DOMAIN9_PG_STATUS,
- * DOMAIN9_PGFSM_PWR_STATUS, pwr_status,
- * 1, 1000);
- */
+ REG_UPDATE(DOMAIN9_PG_CONFIG,
+ DOMAIN9_POWER_GATE, power_gate);
+
+ REG_WAIT(DOMAIN9_PG_STATUS,
+ DOMAIN9_PGFSM_PWR_STATUS, pwr_status,
+ 1, 1000);
break;
default:
BREAK_TO_DEBUGGER();
@@ -148,17 +143,12 @@ void dcn302_hubp_pg_control(struct dce_hwseq *hws,
unsigned int hubp_inst, bool
1, 1000);
break;
case 4: /* DCHUBP4 */
- /*
- * Do not power gate DCHUB4, should be left at HW default,
power on permanently.
- * PG on Pipe4 is De-featured, attempting to put it to PG state
may result in hard
- * reset.
- * REG_UPDATE(DOMAIN8_PG_CONFIG,
- * DOMAIN8_POWER_GATE, power_gate);
- *
- * REG_WAIT(DOMAIN8_PG_STATUS,
- * DOMAIN8_PGFSM_PWR_STATUS, pwr_status,
- * 1, 1000);
- */
+ REG_UPDATE(DOMAIN8_PG_CONFIG,
+ DOMAIN8_POWER_GATE, power_gate);
+
+ REG_WAIT(DOMAIN8_PG_STATUS,
+ DOMAIN8_PGFSM_PWR_STATUS, pwr_status,
+ 1, 1000);
break;
default:
BREAK_TO_DEBUGGER();
--
2.25.1
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