diff options
| author | hersen wu <hersenxs.wu@amd.com> | 2019-08-02 16:01:37 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-08-23 11:46:02 -0500 |
| commit | f49cfa279b9a2214172d13e87fe6a11bd3941f67 (patch) | |
| tree | eb29f996558047584af36c5bdab96cedc27c072f /drivers/gpu/drm/amd/display/dc/core/dc_resource.c | |
| parent | 9a7bfcb6acee07ae891ad28d40a1535aab3134a9 (diff) | |
drm/amd/display: flicking observed while installing driver on Navi10 CF
[WHY] value of dchub_ref_clock is decided by dchubbub global timer
settings which is programmed by vbios command table disp_init.
for multi-GPU case, vbios is posted only for primary GPU. without
vbios posted for the secondary GPU, value of dchub_ref_clock is not
set properly. this value will affect dcn bandwidth calcuation and
cause underflow. user will see screen flicking during driver
installation for dual GPU case.
[HOW] dc init_hw always call vbios command table disp_init to
make sure dchubbub global timer is configured and enable.
Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_resource.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index f7d8edc9cd02..5fb0c3d672e4 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -172,6 +172,7 @@ struct resource_pool *dc_create_resource_pool(struct dc *dc, default: break; } + if (res_pool != NULL) { if (dc->ctx->dc_bios->fw_info_valid) { res_pool->ref_clocks.xtalin_clock_inKhz = |