drm/amd/display: Remove unnecessary DSC power gating for DCN401

[Why]
In some cases during topology changes, a pipe that was used to drive a
stream being removed can be re-assigned to drive a different stream. In
these cases, DSC power gating is not handled properly, leading to
situations where DSC is being setup while power gated.

[How]
 - remove enable_stream_gating and disable_stream_gating for DCN401

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c
index 6a768702c7bdecdae442c6f2060ba9c7b109b608..1439f07f0b64eda8d5417de8e1af9e44ab75b37f 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_init.c
@@ -115,8 +115,6 @@ static const struct hwseq_private_funcs dcn401_private_funcs = {
        .reset_hw_ctx_wrap = dcn20_reset_hw_ctx_wrap,
        .enable_stream_timing = dcn401_enable_stream_timing,
        .edp_backlight_control = dce110_edp_backlight_control,
-       .disable_stream_gating = dcn20_disable_stream_gating,
-       .enable_stream_gating = dcn20_enable_stream_gating,
        .setup_vupdate_interrupt = dcn20_setup_vupdate_interrupt,
        .did_underflow_occur = dcn10_did_underflow_occur,
        .init_blank = dcn32_init_blank,