From: Leo (Hanghong) Ma <hanghong.ma@amd.com>
Date: Fri, 25 Oct 2019 13:40:13 +0000 (-0400)
Subject: drm/amd/display: Add hubp clock status in DTN log for Navi
X-Git-Tag: v5.6-rc1~114^2~21^2~254
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d3698cea22c6c203bdb95a5330664c0e5dfd0829;p=thirdparty%2Fkernel%2Flinux.git

drm/amd/display: Add hubp clock status in DTN log for Navi

[Why]
For debug purpose, we need to check HUBP_CLOCK_ENABLE in DTN
log debugfs on Navi.

[How]
Add related register read in dcn20_hubp.c.

Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
index f04325604f6c4..7d9ffb81584a4 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c
@@ -1202,6 +1202,9 @@ void hubp2_read_state_common(struct hubp *hubp)
 			HUBP_TTU_DISABLE, &s->ttu_disable,
 			HUBP_UNDERFLOW_STATUS, &s->underflow_status);
 
+	REG_GET(HUBP_CLK_CNTL,
+			HUBP_CLOCK_ENABLE, &s->clock_en);
+
 	REG_GET(DCN_GLOBAL_TTU_CNTL,
 			MIN_TTU_VBLANK, &s->min_ttu_vblank);