The patch below does not apply to the 6.5-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.5.y git checkout FETCH_HEAD git cherry-pick -x 9725a4f9eb495bfa6c7f5ccdb49440ff06dba0a1 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023112421-threaten-donor-e115@gregkh' --subject-prefix 'PATCH 6.5.y' HEAD^..
Possible dependencies:
9725a4f9eb49 ("drm/amd/display: Add null checks for 8K60 lightup") 051d90070d4c ("drm/amd/display: Refactor DPG test pattern logic for ODM cases") ddd5298c63e4 ("drm/amd/display: Update cursor limits based on SW cursor fallback limits") 13c0e836316a ("drm/amd/display: Adjust code style for hw_sequencer.h") 1288d7020809 ("drm/amd/display: Improve x86 and dmub ips handshake") c0f8b83188c7 ("drm/amd/display: disable IPS") 93a66cef607c ("drm/amd/display: Add IPS control flag") dc01c4b79bfe ("drm/amd/display: Update driver and IPS interop") e87a6c5b7780 ("drm/amd/display: Blank phantom OTG before enabling") 0fa45b6aeae4 ("drm/amd/display: Add DCN35 Resource") ec129fa356be ("drm/amd/display: Add DCN35 init") 65138eb72e1f ("drm/amd/display: Add DCN35 DMUB") 8774029f76b9 ("drm/amd/display: Add DCN35 CLK_MGR") 6f8b7565cca4 ("drm/amd/display: Add DCN35 HWSEQ") 920f879c8360 ("drm/amd/display: Add DCN35 PG_CNTL") fb8c3ef80584 ("drm/amd/display: Update dc.h for DCN35 support") 5e77c339a291 ("drm/amd/display: Skip dmub memory flush when not needed") 3001e6d1dedc ("drm/amd/display: Add support for 1080p SubVP to reduce idle power") 0b9dc439f404 ("drm/amd/display: Write flip addr to scratch reg for subvp") 96182df99dad ("drm/amd/display: Enable runtime register offset init for DCN32 DMUB")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 9725a4f9eb495bfa6c7f5ccdb49440ff06dba0a1 Mon Sep 17 00:00:00 2001 From: Muhammad Ahmed ahmed.ahmed@amd.com Date: Tue, 31 Oct 2023 16:03:21 -0400 Subject: [PATCH] drm/amd/display: Add null checks for 8K60 lightup
[WHY & HOW] Add some null checks to fix an issue where 8k60 tiled display fails to light up.
Cc: Mario Limonciello mario.limonciello@amd.com Cc: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Reviewed-by: Charlene Liu charlene.liu@amd.com Acked-by: Alex Hung alex.hung@amd.com Signed-off-by: Muhammad Ahmed ahmed.ahmed@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/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 7b9bf5cb4529..d8f434738212 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -3178,7 +3178,7 @@ static bool update_planes_and_stream_state(struct dc *dc, struct pipe_ctx *otg_master = resource_get_otg_master_for_stream(&context->res_ctx, context->streams[i]);
- if (otg_master->stream->test_pattern.type != DP_TEST_PATTERN_VIDEO_MODE) + if (otg_master && otg_master->stream->test_pattern.type != DP_TEST_PATTERN_VIDEO_MODE) resource_build_test_pattern_params(&context->res_ctx, otg_master); } } diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index 1d48278cba96..a1f1d1003992 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -5190,6 +5190,9 @@ bool dc_resource_acquire_secondary_pipe_for_mpc_odm_legacy( sec_next = sec_pipe->next_odm_pipe; sec_prev = sec_pipe->prev_odm_pipe;
+ if (pri_pipe == NULL) + return false; + *sec_pipe = *pri_pipe;
sec_pipe->top_pipe = sec_top;