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drm/amd/display: Load srm before enabling HDCP

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[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>
This commit is contained in:
Bhawanpreet Lakha 2019-12-04 11:54:24 -05:00 committed by Alex Deucher
parent 9037246bb2
commit f4406d6fb2
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
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@ -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;