diff options
| author | Oleh Kuzhylnyi <okuzhyln@amd.com> | 2025-08-18 13:19:29 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-09-05 17:38:40 -0400 |
| commit | 9fd2da71c301184d98fe37674ca8d017d1ce6600 (patch) | |
| tree | 20ad36dee0211cecff63e62c8e4b2c77aef44abf /drivers/gpu/drm/amd/display/amdgpu_dm | |
| parent | drm/amdgpu: Add vbios build number interface (diff) | |
| download | linux-9fd2da71c301184d98fe37674ca8d017d1ce6600.tar.gz linux-9fd2da71c301184d98fe37674ca8d017d1ce6600.zip | |
drm/amd/display: Add HDCP policy control
[Why]
DM should be able to control HDCP retry limit via configurable
parameter.
[How]
Expose a retry_limit parameter for controlling the maximum number of
retries and lift the hardcode out to DM.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Oleh Kuzhylnyi <okuzhyln@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 2 |
1 files changed, 2 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 437174d4fed5..58e084f52526 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 @@ -223,6 +223,7 @@ void hdcp_update_display(struct hdcp_workqueue *hdcp_work, display_adjust.disable = MOD_HDCP_DISPLAY_NOT_DISABLE; link_adjust.auth_delay = 2; + link_adjust.retry_limit = MAX_NUM_OF_ATTEMPTS; if (content_type == DRM_MODE_HDCP_CONTENT_TYPE0) { link_adjust.hdcp2.force_type = MOD_HDCP_FORCE_TYPE_0; @@ -572,6 +573,7 @@ static void update_config(void *handle, struct cp_psp_stream_config *config) link->dp.usb4_enabled = config->usb4_enabled; display->adjust.disable = MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION; link->adjust.auth_delay = 2; + link->adjust.retry_limit = MAX_NUM_OF_ATTEMPTS; link->adjust.hdcp1.disable = 0; hdcp_w->encryption_status[display->index] = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF; |