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authorBhawanpreet Lakha <[email protected]>2019-12-04 11:54:24 -0500
committerAlex Deucher <[email protected]>2020-02-06 15:04:36 -0500
commitf4406d6fb23c72eb8ccf071db00fb06d9586bb5f (patch)
tree98b66ea3adf53a0e1300c508ded3cd5e679304fa /drivers/gpu/drm/amd/display
parent9037246bb2da58d7b990ec9133f69c0b7d86f7a0 (diff)
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 <[email protected]> Reviewed-by: Rodrigo Siqueira <[email protected]> Reviewed-by: Harry Wentland <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c7
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;