linux-kernel - [PATCH v1 2/2] arm64: dts: qcom: add initial support for Samsung Galaxy S20 FE

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Message-ID: <20250815151426.32023-3-ghatto404@gmail.com>
Date: Fri, 15 Aug 2025 15:14:26 +0000
From: Eric Gonçalves <ghatto404@...il.com>
To: andersson@...nel.org,
	konradybcio@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 2/2] arm64: dts: qcom: add initial support for Samsung Galaxy S20 FE

Add new device support for the Samsung Galaxy S20 FE 4G/5G
 (SM-G980/SM-G981B) phone

What works:
- SimpleFB
- Pstore/ramoops

Signed-off-by: Eric Gonçalves <ghatto404@...il.com>
---
 arch/arm64/boot/dts/qcom/Makefile             |  1 +
 .../boot/dts/qcom/sm8250-samsung-r8q.dts      | 47 +++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/sm8250-samsung-r8q.dts

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 4bfa926b6a08..5ac6aab51a9d 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -275,6 +275,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= sm8150-sony-xperia-kumano-bahamut.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8150-sony-xperia-kumano-griffin.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-hdk.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-mtp.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-samsung-r8q.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-sony-xperia-edo-pdx203.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-sony-xperia-edo-pdx206.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-xiaomi-elish-boe.dtb
diff --git a/arch/arm64/boot/dts/qcom/sm8250-samsung-r8q.dts b/arch/arm64/boot/dts/qcom/sm8250-samsung-r8q.dts
new file mode 100644
index 000000000000..32036fc9668a
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm8250-samsung-r8q.dts
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/dts-v1/;
+
+#include "sm8250.dtsi"
+
+/ {
+	model = "Samsung Galaxy S20 FE";
+	compatible = "samsung,r8q", "qcom,sm8250";
+	chassis-type = "handset";
+
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		framebuffer: framebuffer@...00000 {
+			compatible = "simple-framebuffer";
+			reg = <0x0 0x9c000000 0x0 (1080 * 2400 * 4)>;
+			width = <1080>;
+			height = <2400>;
+			stride = <(1080 * 4)>;
+			format = "a8r8g8b8";
+		};
+	};
+
+	reserved-memory {
+		cont_splash_mem: memory@...00000 {
+			reg = <0x0 0x9c000000 0x0 (1080 * 2400 * 4)>;
+			no-map;
+		};
+
+		ramoops@...00000 {
+			compatible = "ramoops";
+			reg = <0x0 0x9fa00000 0x0 0x100000>;
+			record-size = <0x4000>;
+			console-size = <0x40000>;
+			pmsg-size = <0x40000>;
+			ecc-size = <16>;
+			no-map;
+		};
+	};
+};
+
+&tlmm {
+	gpio-reserved-ranges = <40 4>; /* I2C (not linked to anything) */
+};
-- 
2.50.1