From: ChunTao Tso <chuntao.tso@amd.com>
Date: Tue, 3 Oct 2023 09:05:05 +0000 (+0800)
Subject: drm/amd/display: amend HPD handler for Replay
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ce3b32ec4aef7171277c7c8efc07861eac27998c;p=linux.git

drm/amd/display: amend HPD handler for Replay

[Why]
For Replay, if we receive HPD, it doesn’t need to reboot the display.
We don’t need to return anything exactly.

[How]
Return nothing just because we don’t need to reboot the display.

Signed-off-by: ChunTao Tso <chuntao.tso@amd.com>
Acked-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
index fc14c36441443..06e829ef48af2 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c
@@ -184,17 +184,17 @@ static bool handle_hpd_irq_psr_sink(struct dc_link *link)
 	return false;
 }
 
-static bool handle_hpd_irq_replay_sink(struct dc_link *link)
+static void handle_hpd_irq_replay_sink(struct dc_link *link)
 {
 	union dpcd_replay_configuration replay_configuration;
 	/*AMD Replay version reuse DP_PSR_ERROR_STATUS for REPLAY_ERROR status.*/
 	union psr_error_status replay_error_status;
 
 	if (link->replay_settings.config.force_disable_desync_error_check)
-		return true;
+		return;
 
 	if (!link->replay_settings.replay_feature_enabled)
-		return false;
+		return;
 
 	dm_helpers_dp_read_dpcd(
 		link->ctx,
@@ -246,7 +246,6 @@ static bool handle_hpd_irq_replay_sink(struct dc_link *link)
 			edp_set_replay_allow_active(link, &allow_active, true, false, NULL);
 		}
 	}
-	return true;
 }
 
 void dp_handle_link_loss(struct dc_link *link)
@@ -427,9 +426,7 @@ bool dp_handle_hpd_rx_irq(struct dc_link *link,
 		/* PSR-related error was detected and handled */
 		return true;
 
-	if (handle_hpd_irq_replay_sink(link))
-		/* Replay-related error was detected and handled */
-		return true;
+	handle_hpd_irq_replay_sink(link);
 
 	/* If PSR-related error handled, Main link may be off,
 	 * so do not handle as a normal sink status change interrupt.