6.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Amit Pundir amit.pundir@linaro.org
[ Upstream commit 110e70fccce4f22b53986ae797d665ffb1950aa6 ]
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@vger.kernel.org # v5.10+ Reviewed-by: Caleb Connolly caleb.connolly@linaro.org Signed-off-by: Amit Pundir amit.pundir@linaro.org Acked-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Link: https://lore.kernel.org/r/20230726132719.2117369-2-amit.pundir@linaro.org Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts index d6b464cb61d6f..f546f6f57c1e5 100644 --- 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"; };