From e92d0314f31bd2bc3ab99138a8b5a3c4fef4c195 Mon Sep 17 00:00:00 2001 From: Wayne Lin Date: Wed, 29 Jul 2026 09:59:10 +0800 Subject: [PATCH] drm/amd/display: Extend DMUB wait for DIG PHY programming commands [Why] DIG transmitter ENABLE and voltage/pre-emphasis VBIOS commands can take longer than the default inbox timeout after amdgpu reload, while DMCUB runs extended DPPHY polling before advancing INBOX1 RPTR. [How] Extend the waiting time to 500ms Reviewed-by: Tom Chung Signed-off-by: Wayne Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index b9fd375a3997..01864fe816a3 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -41,7 +41,7 @@ #define DC_LOGGER CTX->logger #define GPINT_RETRY_NUM 20 -#define MAX_WAIT_US 100000 +#define MAX_WAIT_US 500000 static void dc_dmub_srv_construct(struct dc_dmub_srv *dc_srv, struct dc *dc, struct dmub_srv *dmub)