diff options
| author |   Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> | 2019-12-04 11:54:24 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2020-02-06 15:04:36 -0500 |
| commit | f4406d6fb23c72eb8ccf071db00fb06d9586bb5f (patch) | |
| tree | 98b66ea3adf53a0e1300c508ded3cd5e679304fa | |
| parent | drm/amd/display: Add sysfs interface for set/get srm (diff) | |
| download | linux-dev-f4406d6fb23c72eb8ccf071db00fb06d9586bb5f.tar.xz linux-dev-f4406d6fb23c72eb8ccf071db00fb06d9586bb5f.zip | |
drm/amd/display: Load srm before enabling HDCP
[Why]
we need to load SRM before we start HDCP. Because for S3 case the sysfs call will be
after we have already enabled HDCP, so we might not be using the latest SRM
[How]
Set srm before starting HDCP.
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c index 221abee517ee..fe043b18bb21 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c @@ -136,6 +136,13 @@ void hdcp_update_display(struct hdcp_workqueue *hdcp_work, hdcp_w->link.adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_0; if (enable_encryption) { + /* Explicitly set the saved SRM as sysfs call will be after we already enabled hdcp + * (s3 resume case) + */ + if (hdcp_work->srm_size > 0) + psp_set_srm(hdcp_work->hdcp.config.psp.handle, hdcp_work->srm, hdcp_work->srm_size, + &hdcp_work->srm_version); + display->adjust.disable = 0; if (content_type == DRM_MODE_HDCP_CONTENT_TYPE0) hdcp_w->link.adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_0; |