From: Yongqiang Sun <yongqiang.sun@amd.com>
Date: Tue, 22 Aug 2017 15:03:06 -0400
Subject: drm/amd/display: Remove mpc from bios left over, keep double buffer
disabled.
Git-commit: d1423e6faf161e69070dbb1d6764dd5da59563a8
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c | 10 +++++++++-
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c | 3 ---
2 files changed, 9 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c
@@ -127,10 +127,18 @@ static void mpc10_mpcc_remove(
for (z_idx = 0; z_idx < opp->mpc_tree.num_pipes; z_idx++)
if (opp->mpc_tree.dpp[z_idx] == dpp_id)
break;
+
if (z_idx == opp->mpc_tree.num_pipes) {
- ASSERT(0);
+ /* In case of resume from S3/S4, remove mpcc from bios left over */
+ REG_SET(MPCC_OPP_ID[dpp_id], 0,
+ MPCC_OPP_ID, 0xf);
+ REG_SET(MPCC_TOP_SEL[dpp_id], 0,
+ MPCC_TOP_SEL, 0xf);
+ REG_SET(MPCC_BOT_SEL[dpp_id], 0,
+ MPCC_BOT_SEL, 0xf);
return;
}
+
mpcc_id = opp->mpc_tree.mpcc[z_idx];
REG_SET(MPCC_OPP_ID[mpcc_id], 0,
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c
@@ -289,9 +289,6 @@ static void tgn10_unblank_crtc(struct ti
{
struct dcn10_timing_generator *tgn10 = DCN10TG_FROM_TG(tg);
- REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL,
- OTG_BLANK_DATA_DOUBLE_BUFFER_EN, 1);
-
REG_UPDATE_2(OTG_BLANK_CONTROL,
OTG_BLANK_DATA_EN, 0,
OTG_BLANK_DE_MODE, 0);