Commit 454425e8 authored by Jing Zhou's avatar Jing Zhou Committed by Alex Deucher
Browse files

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: default avatarJing Zhou <Jing.Zhou@amd.com>
Reviewed-by: default avatarWenjing Liu <Wenjing.Liu@amd.com>
Acked-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 838a4ea3

drivers/gpu/drm/amd/display/modules/hdcp/hdcp1_transition.c

+16 −4
Original line number Diff line number Diff line
@@ -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) ||

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