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 f043256..7d9ffb8 100644 (file)
--- 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);