This is a note to let you know that I've just added the patch titled
drm/dsc: fix DP_DSC_MAX_BPP_DELTA_* macro values
to the 6.2-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-dsc-fix-dp_dsc_max_bpp_delta_-macro-values.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0d68683838f2850dd8ff31f1121e05bfb7a2def0 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@xxxxxxxxx>
Date: Thu, 6 Apr 2023 16:46:15 +0300
Subject: drm/dsc: fix DP_DSC_MAX_BPP_DELTA_* macro values
From: Jani Nikula <jani.nikula@xxxxxxxxx>
commit 0d68683838f2850dd8ff31f1121e05bfb7a2def0 upstream.
The macro values just don't match the specs. Fix them.
Fixes: 1482ec00be4a ("drm: Add missing DP DSC extended capability definitions.")
Cc: Vinod Govindapillai <vinod.govindapillai@xxxxxxxxx>
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230406134615.1422509-2-jani.nikula@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/drm/display/drm_dp.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -286,8 +286,8 @@
#define DP_DSC_MAX_BITS_PER_PIXEL_HI 0x068 /* eDP 1.4 */
# define DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK (0x3 << 0)
-# define DP_DSC_MAX_BPP_DELTA_VERSION_MASK 0x06
-# define DP_DSC_MAX_BPP_DELTA_AVAILABILITY 0x08
+# define DP_DSC_MAX_BPP_DELTA_VERSION_MASK (0x3 << 5) /* eDP 1.5 & DP 2.0 */
+# define DP_DSC_MAX_BPP_DELTA_AVAILABILITY (1 << 7) /* eDP 1.5 & DP 2.0 */
#define DP_DSC_DEC_COLOR_FORMAT_CAP 0x069
# define DP_DSC_RGB (1 << 0)
Patches currently in stable-queue which might be from jani.nikula@xxxxxxxxx are
queue-6.2/drm-dsc-fix-dp_dsc_max_bpp_delta_-macro-values.patch
queue-6.2/drm-dsc-fix-drm_edp_dsc_sink_output_bpp-dpcd-high-by.patch
queue-6.2/drm-i915-check-pipe-source-size-when-using-skl-scale.patch
