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* FAILED: patch "[PATCH] drm/i915/dsi: Use TRANS_DDI_FUNC_CTL's own port width macro" failed to apply to 6.12-stable tree
@ 2025-02-24 10:22 gregkh
  2025-02-24 15:39 ` [PATCH 6.12.y] drm/i915/dsi: Use TRANS_DDI_FUNC_CTL's own port width macro Imre Deak
  2025-03-05 15:50 ` Imre Deak
  0 siblings, 2 replies; 6+ messages in thread
From: gregkh @ 2025-02-24 10:22 UTC (permalink / raw)
  To: imre.deak, jani.nikula, rodrigo.vivi, stable; +Cc: stable


The patch below does not apply to the 6.12-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-6.12.y
git checkout FETCH_HEAD
git cherry-pick -x 879f70382ff3e92fc854589ada3453e3f5f5b601
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2025022418-clergyman-hacker-f7f7@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

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

From 879f70382ff3e92fc854589ada3453e3f5f5b601 Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Fri, 14 Feb 2025 16:19:51 +0200
Subject: [PATCH] drm/i915/dsi: Use TRANS_DDI_FUNC_CTL's own port width macro

The format of the port width field in the DDI_BUF_CTL and the
TRANS_DDI_FUNC_CTL registers are different starting with MTL, where the
x3 lane mode for HDMI FRL has a different encoding in the two registers.
To account for this use the TRANS_DDI_FUNC_CTL's own port width macro.

Cc: <stable@vger.kernel.org> # v6.5+
Fixes: b66a8abaa48a ("drm/i915/display/mtl: Fill port width in DDI_BUF_/TRANS_DDI_FUNC_/PORT_BUF_CTL for HDMI")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250214142001.552916-2-imre.deak@intel.com
(cherry picked from commit 76120b3a304aec28fef4910204b81a12db8974da)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index c977b74f82f0..82bf6c654de2 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -809,8 +809,8 @@ gen11_dsi_configure_transcoder(struct intel_encoder *encoder,
 		/* select data lane width */
 		tmp = intel_de_read(display,
 				    TRANS_DDI_FUNC_CTL(display, dsi_trans));
-		tmp &= ~DDI_PORT_WIDTH_MASK;
-		tmp |= DDI_PORT_WIDTH(intel_dsi->lane_count);
+		tmp &= ~TRANS_DDI_PORT_WIDTH_MASK;
+		tmp |= TRANS_DDI_PORT_WIDTH(intel_dsi->lane_count);
 
 		/* select input pipe */
 		tmp &= ~TRANS_DDI_EDP_INPUT_MASK;


^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2025-03-06 19:11 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2025-02-24 10:22 FAILED: patch "[PATCH] drm/i915/dsi: Use TRANS_DDI_FUNC_CTL's own port width macro" failed to apply to 6.12-stable tree gregkh
2025-02-24 15:39 ` [PATCH 6.12.y] drm/i915/dsi: Use TRANS_DDI_FUNC_CTL's own port width macro Imre Deak
2025-02-25 16:13   ` Sasha Levin
2025-03-05 12:57   ` Greg KH
2025-03-05 15:50 ` Imre Deak
2025-03-06 19:11   ` Sasha Levin

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