diff options
| author | Jing Zhou <Jing.Zhou@amd.com> | 2019-11-14 11:39:52 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-07 20:13:27 +0300 |
| commit | 454425e8f919d9373b7db431552c0860c156e2cd (patch) | |
| tree | c03cadcffd01344d716d14398de6fffb1f115d50 /drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c | |
| parent | 838a4ea38441963b035078052acd99ab4af74c42 (diff) | |
| download | linux-454425e8f919d9373b7db431552c0860c156e2cd.tar.xz | |
drm/amd/display: rx_validation failed resume from sleep
[why]
Most DP/HDMI monitors need more time to response rx_validation
request.
[how]
Add generic 1000ms delay.
Signed-off-by: Jing Zhou <Jing.Zhou@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/drm/amd/display/modules/hdcp/hdcp1_transition.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c index 136b8011ff3f..21ebc62bb9d9 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c @@ -67,11 +67,19 @@ enum mod_hdcp_status mod_hdcp_hdcp1_transition(struct mod_hdcp *hdcp, break; case H1_A2_COMPUTATIONS_A3_VALIDATE_RX_A6_TEST_FOR_REPEATER: if (input->bcaps_read != PASS || - input->r0p_read != PASS || - input->rx_validation != PASS || - (!conn->is_repeater && input->encryption != PASS)) { + input->r0p_read != PASS) { + fail_and_restart_in_ms(0, &status, output); + break; + } else if (input->rx_validation != PASS) { /* 1A-06: consider invalid r0' a failure */ /* 1A-08: consider bksv listed in SRM a failure */ + /* + * some slow RX will fail rx validation when it is + * not ready. give it more time to react before retry. + */ + fail_and_restart_in_ms(1000, &status, output); + break; + } else if (!conn->is_repeater && input->encryption != PASS) { fail_and_restart_in_ms(0, &status, output); break; } @@ -212,7 +220,11 @@ enum mod_hdcp_status mod_hdcp_hdcp1_dp_transition(struct mod_hdcp *hdcp, * after 3 attempts. * 1A-08: consider bksv listed in SRM a failure */ - fail_and_restart_in_ms(0, &status, output); + /* + * some slow RX will fail rx validation when it is + * not ready. give it more time to react before retry. + */ + fail_and_restart_in_ms(1000, &status, output); } break; } else if ((!conn->is_repeater && input->encryption != PASS) || |