diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 4906712e3cfd..50572419dca9 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -116,3 +116,5 @@ dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-sony-xperia-edo-pdx203.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8250-sony-xperia-edo-pdx206.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8350-hdk.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm8350-mtp.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= sm8350-sony-xperia-sagami-pdx214.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= sm8350-sony-xperia-sagami-pdx215.dtb
diff --git a/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx214.dts b/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx214.dts
new file mode 100644
index 000000000000..cc650508dc2d
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx214.dts
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2021, Konrad Dybcio <konrad.dybcio@somainline.org>
+ */
+
+/dts-v1/;
+
+#include "sm8350-sony-xperia-sagami.dtsi"
+
+/ {
+	model = "Sony Xperia 5 III";
+	compatible = "sony,pdx214-generic", "qcom,sm8350";
+};
+
+&framebuffer {
+	width = <1080>;
+	height = <2520>;
+	stride = <(1080 * 4)>;
+};
diff --git a/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx215.dts b/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx215.dts
new file mode 100644
index 000000000000..d21bbeb603a6
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami-pdx215.dts
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2021, Konrad Dybcio <konrad.dybcio@somainline.org>
+ */
+
+/dts-v1/;
+
+#include "sm8350-sony-xperia-sagami.dtsi"
+
+/ {
+	model = "Sony Xperia 1 III";
+	compatible = "sony,pdx215-generic", "qcom,sm8350";
+};
diff --git a/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami.dtsi b/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami.dtsi
new file mode 100644
index 000000000000..b50f04ffee95
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm8350-sony-xperia-sagami.dtsi
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2021, Konrad Dybcio <konrad.dybcio@somainline.org>
+ */
+
+#include "sm8350.dtsi"
+#include "pm8350.dtsi"
+#include "pm8350b.dtsi"
+#include "pm8350c.dtsi"
+#include "pmk8350.dtsi"
+#include "pmr735a.dtsi"
+#include "pmr735b.dtsi"
+
+/ {
+	/*
+	 * Yes, you are correct, there is NO MORE {msm,board,pmic}-id on SM8350!
+	 * Adding it will cause the bootloader to go crazy and randomly crash
+	 * shortly after closing UEFI boot services.. Perhaps that has something
+	 * to do with the OS running inside a VM now..?
+	 */
+
+	chassis-type = "handset";
+
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		framebuffer: framebuffer@e1000000 {
+			compatible = "simple-framebuffer";
+			reg = <0 0xe1000000 0 0x2300000>;
+
+			/* The display, even though it's 4K, initializes at 1080-ish p */
+			width = <1096>;
+			height = <2560>;
+			stride = <(1096 * 4)>;
+			format = "a8r8g8b8";
+			/*
+			 * That's (going to be) a lot of clocks, but it's necessary due
+			 * to unused clk cleanup & no panel driver yet
+			 */
+			clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+				 <&gcc GCC_DISP_SF_AXI_CLK>;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		/* For reasons still unknown, GAssist key and Camera Focus/Shutter don't work.. */
+
+		vol-down {
+			label = "Volume Down";
+			linux,code = <KEY_VOLUMEDOWN>;
+			gpios = <&pmk8350_gpios 3 GPIO_ACTIVE_LOW>;
+			debounce-interval = <15>;
+			linux,can-disable;
+			gpio-key,wakeup;
+		};
+	};
+
+	reserved-memory {
+		cont_splash_mem: memory@e1000000 {
+			reg = <0 0xe1000000 0 0x2300000>;
+			no-map;
+		};
+
+		ramoops@ffc00000 {
+			compatible = "ramoops";
+			reg = <0 0xffc00000 0 0x100000>;
+			console-size = <0x40000>;
+			record-size = <0x1000>;
+			no-map;
+		};
+	};
+};
+
+&pmk8350_rtc {
+	status = "okay";
+};
+
+&pon_pwrkey {
+	status = "okay";
+};
+
+&pon_resin {
+	status = "okay";
+	linux,code = <KEY_VOLUMEUP>;
+};
+
+&qupv3_id_0 {
+	status = "okay";
+};
+
+&qupv3_id_1 {
+	status = "okay";
+};
+
+&qupv3_id_2 {
+	status = "okay";
+};
+
+&tlmm {
+	gpio-reserved-ranges = <44 4>;
+};
+
+/* BIG WARNING! DO NOT TOUCH UFS, YOUR DEVICE WILL DIE! */
+&ufs_mem_hc { status = "disabled"; };
+&ufs_mem_phy { status = "disabled"; };
+
+/* TODO: Make USB3 work (perhaps needs regulators for higher-current operation?) */
+&usb_1 {
+	status = "okay";
+
+	qcom,select-utmi-as-pipe-clk;
+};
+
+&usb_1_dwc3 {
+	dr_mode = "peripheral";
+
+	maximum-speed = "high-speed";
+	phys = <&usb_1_hsphy>;
+	phy-names = "usb2-phy";
+};
+
+&usb_1_hsphy {
+	status = "okay";
+};
+
+&usb_1_qmpphy {
+	status = "okay";
+};