This is a note to let you know that I've just added the patch titled
arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved
to the 6.5-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:
arm64-dts-qcom-sdm845-db845c-mark-cont-splash-memory-region-as-reserved.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 110e70fccce4f22b53986ae797d665ffb1950aa6 Mon Sep 17 00:00:00 2001
From: Amit Pundir <amit.pundir@xxxxxxxxxx>
Date: Wed, 26 Jul 2023 18:57:19 +0530
Subject: arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved
From: Amit Pundir <amit.pundir@xxxxxxxxxx>
commit 110e70fccce4f22b53986ae797d665ffb1950aa6 upstream.
Adding a reserved memory region for the framebuffer memory
(the splash memory region set up by the bootloader).
It fixes a kernel panic (arm-smmu: Unhandled context fault
at this particular memory region) reported on DB845c running
v5.10.y.
Cc: stable@xxxxxxxxxxxxxxx # v5.10+
Reviewed-by: Caleb Connolly <caleb.connolly@xxxxxxxxxx>
Signed-off-by: Amit Pundir <amit.pundir@xxxxxxxxxx>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230726132719.2117369-2-amit.pundir@xxxxxxxxxx
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -101,6 +101,14 @@
};
};
+ reserved-memory {
+ /* Cont splash region set up by the bootloader */
+ cont_splash_mem: framebuffer@9d400000 {
+ reg = <0x0 0x9d400000 0x0 0x2400000>;
+ no-map;
+ };
+ };
+
lt9611_1v8: lt9611-vdd18-regulator {
compatible = "regulator-fixed";
regulator-name = "LT9611_1V8";
@@ -506,6 +514,7 @@
};
&mdss {
+ memory-region = <&cont_splash_mem>;
status = "okay";
};
Patches currently in stable-queue which might be from amit.pundir@xxxxxxxxxx are
queue-6.5/arm64-dts-qcom-sdm845-db845c-mark-cont-splash-memory-region-as-reserved.patch
