FAILED: patch "[PATCH] drm/dsc: fix drm_edp_dsc_sink_output_bpp() DPCD high byte" failed to apply to 5.4-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 5.4-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-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x 13525645e2246ebc8a21bd656248d86022a6ee8f
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023051338-denial-player-e724@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:

13525645e224 ("drm/dsc: fix drm_edp_dsc_sink_output_bpp() DPCD high byte usage")
1482ec00be4a ("drm: Add missing DP DSC extended capability definitions.")
34f667634a0d ("drm/dp_mst: add passthrough_aux to struct drm_dp_mst_port")
5d1b8b4a14f7 ("drm/display: Split DisplayPort header into core and helper")
da68386d9edb ("drm: Rename dp/ to display/")
c9e9ce0b6f85 ("Merge tag 'drm-misc-next-2022-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 13525645e2246ebc8a21bd656248d86022a6ee8f Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Thu, 6 Apr 2023 16:46:14 +0300
Subject: [PATCH] drm/dsc: fix drm_edp_dsc_sink_output_bpp() DPCD high byte
 usage

The operator precedence between << and & is wrong, leading to the high
byte being completely ignored. For example, with the 6.4 format, 32
becomes 0 and 24 becomes 8. Fix it, and remove the slightly confusing
and unnecessary DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT macro while at it.

Fixes: 0575650077ea ("drm/dp: DRM DP helper/macros to get DP sink DSC parameters")
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Cc: Manasi Navare <navaremanasi@google.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: <stable@vger.kernel.org> # v5.0+
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230406134615.1422509-1-jani.nikula@intel.com

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 632376c291db..4545ed610958 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -286,7 +286,6 @@
 
 #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_BITS_PER_PIXEL_HI_SHIFT 8
 # define DP_DSC_MAX_BPP_DELTA_VERSION_MASK  0x06
 # define DP_DSC_MAX_BPP_DELTA_AVAILABILITY  0x08
 
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index ab55453f2d2c..ade9df59e156 100644
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -181,9 +181,8 @@ static inline u16
 drm_edp_dsc_sink_output_bpp(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE])
 {
 	return dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_LOW - DP_DSC_SUPPORT] |
-		(dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_HI - DP_DSC_SUPPORT] &
-		 DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK <<
-		 DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT);
+		((dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_HI - DP_DSC_SUPPORT] &
+		  DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK) << 8);
 }
 
 static inline u32