| From 52421601e6f8a2ce92fdb63a13cc1f92a4e6552f Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| 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@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 c289bf0903b45..c9efcb894a52f 100644 |
| --- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts |
| +++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts |
| @@ -100,6 +100,14 @@ |
| }; |
| }; |
| |
| + 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"; |
| @@ -512,6 +520,7 @@ |
| }; |
| |
| &mdss { |
| + memory-region = <&cont_splash_mem>; |
| status = "okay"; |
| }; |
| |
| -- |
| 2.40.1 |
| |
