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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>
This commit is contained in:
Jing Zhou 2019-11-14 16:39:52 +08:00 committed by Alex Deucher
parent 838a4ea384
commit 454425e8f9
1 changed files with 16 additions and 4 deletions
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20
drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c
View File

@ -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) ||