linux-kernel - [PATCH v2] arm64: dts: qcom: sdm845-xiaomi-beryllium: Add reserved memory region

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Message-Id: <20230127063355.1775246-1-amit.pundir@linaro.org>
Date:   Fri, 27 Jan 2023 12:03:55 +0530
From:   Amit Pundir <amit.pundir@...aro.org>
To:     Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Caleb Connolly <caleb.connolly@...aro.org>,
        Joel Selvaraj <joelselvaraj.oss@...il.com>
Cc:     linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        dt <devicetree@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        phone-devel <phone-devel@...r.kernel.org>
Subject: [PATCH v2] arm64: dts: qcom: sdm845-xiaomi-beryllium: Add reserved memory region

Put cont splash memory region under the reserved-memory as
confirmed by the downstream code for both Tianma and EBBG variants.

Signed-off-by: Amit Pundir <amit.pundir@...aro.org>
---
v2: The framebuffer address is same for the EBBG variant too,
    so moved this change from -tianma.dts to -common.dtsi.

 .../arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi
index eb6b2b676eca..37591daace73 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi
@@ -97,6 +97,12 @@ spss_mem: memory@...00000 {
 			no-map;
 		};
 
+		/* Cont splash region set up by the bootloader */
+		cont_splash_mem: framebuffer@...00000 {
+			reg = <0 0x9d400000 0 0x2400000>;
+			no-map;
+		};
+
 		rmtfs_mem: memory@...01000 {
 			compatible = "qcom,rmtfs-mem";
 			reg = <0 0xf6301000 0 0x200000>;
-- 
2.25.1