FAILED: patch "[PATCH] drm/amd/display: Increase num voltage states to 40" failed to apply to 6.1-stable tree

FAILED: patch "[PATCH] drm/amd/display: Increase num voltage states to 40" failed to apply to 6.1-stable tree

[gregkh]

The patch below does not apply to the 6.1-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-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 75a3371e8ffdab2e504f4326daab60f8fb15fdf1
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2024012724-duty-vocalize-d9cb@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

Possible dependencies:

75a3371e8ffd ("drm/amd/display: Increase num voltage states to 40")
1682bd1a6b5f ("drm/amd/display: Expand kernel doc for DC")

thanks,

greg k-h

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

From 75a3371e8ffdab2e504f4326daab60f8fb15fdf1 Mon Sep 17 00:00:00 2001
From: Alvin Lee <alvin.lee2@amd.com>
Date: Wed, 8 Nov 2023 17:16:28 -0500
Subject: [PATCH] drm/amd/display: Increase num voltage states to 40

[Description]
If during driver init stage there are greater than 20
intermediary voltage states while constructing the SOC
BB we could hit issues because we will index outside of the
clock_limits array and start overwriting data. Increase the
total number of states to 40 to avoid this issue.

Cc: stable@vger.kernel.org # 6.1+
Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dc_features.h b/drivers/gpu/drm/amd/display/dc/dml/dc_features.h
index 2cbdd75429ff..6e669a2c5b2d 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dc_features.h
+++ b/drivers/gpu/drm/amd/display/dc/dml/dc_features.h
@@ -36,7 +36,7 @@
  * Define the maximum amount of states supported by the ASIC. Every ASIC has a
  * specific number of states; this macro defines the maximum number of states.
  */
-#define DC__VOLTAGE_STATES 20
+#define DC__VOLTAGE_STATES 40
 #define DC__NUM_DPP__4 1
 #define DC__NUM_DPP__0_PRESENT 1
 #define DC__NUM_DPP__1_PRESENT 1

FAILED: patch "[PATCH] drm/amd/display: Increase num voltage states to 40" failed to apply to 6.1-stable tree

[gregkh]

The patch below does not apply to the 6.1-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-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 67e38874b85b8df7b23d29f78ac3d7ecccd9519d
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023120315-suction-seventh-f9e4@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

Possible dependencies:

67e38874b85b ("drm/amd/display: Increase num voltage states to 40")
1682bd1a6b5f ("drm/amd/display: Expand kernel doc for DC")

thanks,

greg k-h

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

From 67e38874b85b8df7b23d29f78ac3d7ecccd9519d Mon Sep 17 00:00:00 2001
From: Alvin Lee <alvin.lee2@amd.com>
Date: Wed, 8 Nov 2023 17:16:28 -0500
Subject: [PATCH] drm/amd/display: Increase num voltage states to 40

[Description]
If during driver init stage there are greater than 20
intermediary voltage states while constructing the SOC
BB we could hit issues because we will index outside of the
clock_limits array and start overwriting data. Increase the
total number of states to 40 to avoid this issue.

Cc: stable@vger.kernel.org # 6.1+
Reviewed-by: Samson Tam <samson.tam@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dc_features.h b/drivers/gpu/drm/amd/display/dc/dml/dc_features.h
index 2cbdd75429ff..6e669a2c5b2d 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dc_features.h
+++ b/drivers/gpu/drm/amd/display/dc/dml/dc_features.h
@@ -36,7 +36,7 @@
  * Define the maximum amount of states supported by the ASIC. Every ASIC has a
  * specific number of states; this macro defines the maximum number of states.
  */
-#define DC__VOLTAGE_STATES 20
+#define DC__VOLTAGE_STATES 40
 #define DC__NUM_DPP__4 1
 #define DC__NUM_DPP__0_PRESENT 1
 #define DC__NUM_DPP__1_PRESENT 1