[PATCH AUTOSEL 6.7 20/88] drm/amd/display: Fix Replay Desync Error IRQ handler

Sasha Levin
2024-01-22T14:57:29Z

From: Dennis Chan <dennis.chan@amd.com>

[ Upstream commit dd5c6362ddcd8bdb07704faff8648593885ecfa1 ]

In previous case, Replay didn't identify the IRQ type, This commit fixes
the issues for the interrupt.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Robin Chen <robin.chen@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Dennis Chan <dennis.chan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
.../display/dc/link/protocols/link_dp_irq_handler.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

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 0c00e94e90b1..9eadc2c7f221 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
@@ -190,9 +190,6 @@ static void handle_hpd_irq_replay_sink(struct dc_link *link)
/*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;
-
if (!link->replay_settings.replay_feature_enabled)
return;

@@ -210,9 +207,6 @@ static void handle_hpd_irq_replay_sink(struct dc_link *link)
&replay_error_status.raw,
sizeof(replay_error_status.raw));

- if (replay_configuration.bits.DESYNC_ERROR_STATUS)
- link->replay_settings.config.received_desync_error_hpd = 1;
-
link->replay_settings.config.replay_error_status.bits.LINK_CRC_ERROR =
replay_error_status.bits.LINK_CRC_ERROR;
link->replay_settings.config.replay_error_status.bits.DESYNC_ERROR =
@@ -225,6 +219,12 @@ static void handle_hpd_irq_replay_sink(struct dc_link *link)
link->replay_settings.config.replay_error_status.bits.STATE_TRANSITION_ERROR) {
bool allow_active;

+ if (link->replay_settings.config.replay_error_status.bits.DESYNC_ERROR)
+ link->replay_settings.config.received_desync_error_hpd = 1;
+
+ if (link->replay_settings.config.force_disable_desync_error_check)
+ return;
+
/* Acknowledge and clear configuration bits */
dm_helpers_dp_write_dpcd(
link->ctx,
--
2.43.0