diff options
| author | Xiaodong Yan <Xiaodong.Yan@amd.com> | 2019-12-06 18:43:53 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-07 12:13:42 -0500 |
| commit | d12babaf15404eb102a84f8f9e6b7112c94c8221 (patch) | |
| tree | 1605e845dfaabe9a569bb0bdf47e87fad77d82a7 /drivers/gpu | |
| parent | daa9692db988afad0c124acf77a7cc08cccd844b (diff) | |
drm/amd/display: add event type check before restart the authentication
[Why]
Some combined docks will always trigger CP_IRQ but there's nothing the driver
needs to take care of, but the CP_IRQ breaks the original hdcp state and
triggers the driver to restart the authentication.
[How]
Add the event type check before restart the authentication or resend the stream
management
Signed-off-by: Xiaodong Yan <Xiaodong.Yan@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c index da190739a969..8cae3e3aacd5 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_transition.c @@ -630,7 +630,10 @@ enum mod_hdcp_status mod_hdcp_hdcp2_dp_transition(struct mod_hdcp *hdcp, break; } else if (input->prepare_stream_manage != PASS || input->stream_manage_write != PASS) { - fail_and_restart_in_ms(0, &status, output); + if (event_ctx->event == MOD_HDCP_EVENT_CALLBACK) + fail_and_restart_in_ms(0, &status, output); + else + increment_stay_counter(hdcp); break; } callback_in_ms(100, output); @@ -655,10 +658,12 @@ enum mod_hdcp_status mod_hdcp_hdcp2_dp_transition(struct mod_hdcp *hdcp, */ if (hdcp->auth.count.stream_management_retry_count > 10) { fail_and_restart_in_ms(0, &status, output); - } else { + } else if (event_ctx->event == MOD_HDCP_EVENT_CALLBACK) { hdcp->auth.count.stream_management_retry_count++; callback_in_ms(0, output); set_state_id(hdcp, output, D2_A9_SEND_STREAM_MANAGEMENT); + } else { + increment_stay_counter(hdcp); } break; } |