diff options
| author | JinZe.Xu <JinZe.Xu@amd.com> | 2021-05-18 14:36:37 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-08 12:16:14 -0400 |
| commit | 2259918e087d9967e6c8f9b621d67d5968019724 (patch) | |
| tree | 374efdd157b35b87d25c756ef7c0dfe72ba3ac23 /drivers | |
| parent | 346cf627fb27c0fea63a041cedbaa4f31784e504 (diff) | |
drm/amd/display: Control power gating by driver.
[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.Xu@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn302/dcn302_hwseq.c | 34 |
1 files 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(); |