On 03/07/2026 09:59, Erikas Bitovtas wrote:
Samsung Galaxy A52/A72 are devices released on atoll (SM7125) platform
in 2021. Add initial device tree for SM7125 Samsung platform with
support for:
- Framebuffer
- GPIO keys
- Hall sensor
- Vibrator
- Regulators
- Reset input
- Real-time clock
- SD card
- UFS
- USB
Tested-by: Stefan Hansson <[email protected]>
Signed-off-by: Erikas Bitovtas <[email protected]>
---
arch/arm64/boot/dts/qcom/Makefile | 2 +
arch/arm64/boot/dts/qcom/sm7125-samsung-a52q.dts | 31 ++
arch/arm64/boot/dts/qcom/sm7125-samsung-a72q.dts | 31 ++
.../arm64/boot/dts/qcom/sm7125-samsung-common.dtsi | 518 +++++++++++++++++++++
4 files changed, 582 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/Makefile
b/arch/arm64/boot/dts/qcom/Makefile
index 6f33c4e2f09c..d90311806e21 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -344,6 +344,8 @@ dtb-$(CONFIG_ARCH_QCOM) +=
sm6125-xiaomi-laurel-sprout.dtb
dtb-$(CONFIG_ARCH_QCOM) += sm6125-xiaomi-willow.dtb
dtb-$(CONFIG_ARCH_QCOM) += sm6350-sony-xperia-lena-pdx213.dtb
dtb-$(CONFIG_ARCH_QCOM) += sm6375-sony-xperia-murray-pdx225.dtb
+dtb-$(CONFIG_ARCH_QCOM) += sm7125-samsung-a52q.dtb
+dtb-$(CONFIG_ARCH_QCOM) += sm7125-samsung-a72q.dtb
dtb-$(CONFIG_ARCH_QCOM) += sm7125-xiaomi-curtana.dtb
dtb-$(CONFIG_ARCH_QCOM) += sm7125-xiaomi-joyeuse.dtb
dtb-$(CONFIG_ARCH_QCOM) += sm7225-fairphone-fp4.dtb
diff --git a/arch/arm64/boot/dts/qcom/sm7125-samsung-a52q.dts
b/arch/arm64/boot/dts/qcom/sm7125-samsung-a52q.dts
new file mode 100644
index 000000000000..e4d005054b00
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm7125-samsung-a52q.dts
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SM7125 Samsung Galaxy A52 (a52q) specific device tree source
+ *
+ * Copyright (c) 2026, The Linux Foundation. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include "sm7125-samsung-common.dtsi"
+
+/ {
+ model = "Samsung Galaxy A52";
+ compatible = "samsung,a52q", "qcom,sm7125";
+ qcom,board-id = <0x22 0x6>;
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ rmtfs_mem: memory@f4f01000 {
+ compatible = "qcom,rmtfs-mem";
+ reg = <0 0xf4f01000 0 0x200000>;
Hi Erikas!
the start on the 0x1000 offset sounds suspicious, doesn't it need 0xf4f0 0000
and size 0x202000 with qcom,use-guard-pages ?
You can also share most of the properties and define it in the -common.dtsi
+ no-map;
+
+ qcom,client-id = <1>;
+ qcom,vmid = <QCOM_SCM_VMID_MSS_MSA>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/qcom/sm7125-samsung-a72q.dts
b/arch/arm64/boot/dts/qcom/sm7125-samsung-a72q.dts
new file mode 100644
index 000000000000..df8d637ef16f
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm7125-samsung-a72q.dts
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SM7125 Samsung Galaxy A72 (a72q) specific device tree source
+ *
+ * Copyright (c) 2026, The Linux Foundation. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include "sm7125-samsung-common.dtsi"
+
+/ {
+ model = "Samsung Galaxy A72";
+ compatible = "samsung,a72q", "qcom,sm7125";
+ qcom,board-id = <0x22 0x5>;
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ rmtfs_mem: memory@f3701000 {
+ compatible = "qcom,rmtfs-mem";
+ reg = <0 0xf3701000 0 0x200000>;
same rmtfs comment as above
+ no-map;
+
+ qcom,client-id = <1>;
+ qcom,vmid = <QCOM_SCM_VMID_MSS_MSA>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/qcom/sm7125-samsung-common.dtsi
b/arch/arm64/boot/dts/qcom/sm7125-samsung-common.dtsi
new file mode 100644
index 000000000000..836dc9b8b1a5
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm7125-samsung-common.dtsi
@@ -0,0 +1,518 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SM7125 Samsung common device tree source
+ *
+ * Copyright (c) 2026, The Linux Foundation. All rights reserved.
+ */
+
+#include <dt-bindings/arm/qcom,ids.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
+#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+#include "sm7125.dtsi"
+#include "pm6150.dtsi"
+#include "pm6150l.dtsi"
+
+/delete-node/ &rmtfs_mem;
+/delete-node/ &ipa_fw_mem;
+/delete-node/ &tz_mem;
+
+/ {
+ chassis-type = "handset";
+
+ qcom,msm-id = <QCOM_ID_SM7125 0>;
+
+ chosen {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ framebuffer@9c000000 {
+ compatible = "simple-framebuffer";
+ reg = <0x0 0x9c000000 0x0 (1080 * 2400 * 4)>;
use memory-region = <&cont_splash_mem>; instead of reg
David
+ width = <1080>;
+ height = <2400>;
+ stride = <(1080 * 4)>;
+ format = "a8r8g8b8";
+ clocks = <&gcc GCC_DISP_HF_AXI_CLK>;
+ };
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&key_vol_up_default>, <&hall_sensor_default>;
+
+ vol-up {
+ label = "Volume up";
+ gpios = <&pm6150l_gpios 8 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_VOLUMEUP>;
+ debounce-interval = <15>;
+ };
+
+ event-hall-sensor {
+ label = "Hall Effect Sensor";
+ gpios = <&pm6150_gpios 10 GPIO_ACTIVE_LOW>;
+ linux,input-type = <EV_SW>;
+ linux,code = <SW_LID>;
+ debounce-interval = <15>;
+ };
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ tz_mem: memory@80b00000 {
+ reg = <0x0 0x80b00000 0x0 0x7100000>;
+ no-map;
+ };
+
+ mpss_mem: memory@8b000000 {
+ reg = <0x0 0x8b000000 0x0 0x8900000>;
+ no-map;
+ };
+
+ wlan_mem: memory@93900000 {
+ reg = <0x0 0x93900000 0x0 0x200000>;
+ no-map;
+ };
+
+ ipa_fw_mem: memory@93b00000 {
+ reg = <0x0 0x93b00000 0x0 0x10000>;
+ no-map;
+ };
+
+ ipa_gsi_region: memory@93b10000 {
+ reg = <0x0 0x93b10000 0x0 0x5000>;
+ no-map;
+ };
+
+ gpu_mem: memory@93b15000 {
+ reg = <0x0 0x93b15000 0x0 0x2000>;
+ no-map;
+ };
+
+ adsp_mem: memory@93c00000 {
+ reg = <0x0 0x93c00000 0x0 0x3e00000>;
+ no-map;
+ };
+
+ camera_region: memory@97a00000 {
+ reg = <0x0 0x97a00000 0x0 0x500000>;
+ no-map;
+ };
+
+ pil_npu_region: memory@97f00000 {
+ reg = <0x0 0x97f00000 0x0 0x500000>;
+ no-map;
+ };
+
+ venus_mem: memory@98400000 {
+ reg = <0x0 0x98400000 0x0 0x500000>;
+ no-map;
+ };
+
+ cdsp_mem: memory@98900000 {
+ reg = <0x0 0x98900000 0x0 0x1e00000>;
+ no-map;
+ };
+
+ cont_splash_mem: memory@9c000000 {
+ reg = <0x0 0x9c000000 0x0 (1080 * 2400 * 4)>;
+ no-map;
+ };
+
[...]
