This is a note to let you know that I've just added the patch titled
drm/i915/dp: Fix the computation for compressed_bpp for DISPLAY < 13
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-dp-fix-the-computation-for-compressed_bpp-for-display-13.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f7caddfd558e32db0ae944256e623a259538b357 Mon Sep 17 00:00:00 2001
From: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Date: Tue, 5 Mar 2024 11:14:43 +0530
Subject: drm/i915/dp: Fix the computation for compressed_bpp for DISPLAY < 13
From: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
commit f7caddfd558e32db0ae944256e623a259538b357 upstream.
For DISPLAY < 13, compressed bpp is chosen from a list of
supported compressed bpps. Fix the condition to choose the
appropriate compressed bpp from the list.
Fixes: 1c56e9a39833 ("drm/i915/dp: Get optimal link config to have best compressed bpp")
Cc: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v6.7+
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/10162
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Reviewed-by: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20240305054443.2489895-1-ankit.k.nautiyal@xxxxxxxxx
(cherry picked from commit 5a1da42b50f3594e18738885c2f23ed36629dd00)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1916,8 +1916,9 @@ icl_dsc_compute_link_config(struct intel
dsc_max_bpp = min(dsc_max_bpp, pipe_bpp - 1);
for (i = 0; i < ARRAY_SIZE(valid_dsc_bpp); i++) {
- if (valid_dsc_bpp[i] < dsc_min_bpp ||
- valid_dsc_bpp[i] > dsc_max_bpp)
+ if (valid_dsc_bpp[i] < dsc_min_bpp)
+ continue;
+ if (valid_dsc_bpp[i] > dsc_max_bpp)
break;
ret = dsc_compute_link_config(intel_dp,
Patches currently in stable-queue which might be from ankit.k.nautiyal@xxxxxxxxx are
queue-6.8/drm-i915-dp-fix-the-computation-for-compressed_bpp-for-display-13.patch
queue-6.8/drm-i915-dp-fix-dsc-state-hw-readout-for-sst-connect.patch
