Samsung Galaxy S22+ (SM-S906B), codenamed g0s, is a mobile phone from
2022. It features 8GB RAM, 128/256GB UFS 3.1, Exynos 2200 SoC and a
1080x2340 Dynamic AMOLED display.

This device has an issue where cpu2 and cpu3 fail to come up
consistently, which leads to a hang later in the boot process. Disable
them until the problem is figured out.

This initial device tree configures simple-framebuffer, volume-up key and
usb.

Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
---
 arch/arm64/boot/dts/exynos/Makefile           |   1 +
 arch/arm64/boot/dts/exynos/exynos2200-g0s.dts | 175 ++++++++++++++++++
 2 files changed, 176 insertions(+)
 create mode 100644 arch/arm64/boot/dts/exynos/exynos2200-g0s.dts

diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile
index f6f4bc650..235b9def4 100644
--- a/arch/arm64/boot/dts/exynos/Makefile
+++ b/arch/arm64/boot/dts/exynos/Makefile
@@ -2,6 +2,7 @@
 subdir-y += google
 
 dtb-$(CONFIG_ARCH_EXYNOS) += \
+	exynos2200-g0s.dtb		\
 	exynos5433-tm2.dtb		\
 	exynos5433-tm2e.dtb		\
 	exynos7-espresso.dtb		\
diff --git a/arch/arm64/boot/dts/exynos/exynos2200-g0s.dts b/arch/arm64/boot/dts/exynos/exynos2200-g0s.dts
new file mode 100644
index 000000000..06e5a34be
--- /dev/null
+++ b/arch/arm64/boot/dts/exynos/exynos2200-g0s.dts
@@ -0,0 +1,175 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Samsung Galaxy S22+ (g0s/SM-S906B) device tree source
+ *
+ * Copyright (c) 2025, Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
+ */
+
+/dts-v1/;
+#include "exynos2200.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	model = "Samsung Galaxy S22+ (SM-S906B)";
+	compatible = "samsung,g0s", "samsung,exynos2200";
+	chassis-type = "handset";
+
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		framebuffer: framebuffer {
+			compatible = "simple-framebuffer";
+			memory-region = <&cont_splash_mem>;
+			width = <1080>;
+			height = <2340>;
+			stride = <(1080 * 4)>;
+			format = "a8r8g8b8";
+		};
+	};
+
+	/*
+	 * RTC clock (XrtcXTI); external, must be 32.768 kHz.
+	 *
+	 * TODO: Remove this once RTC clock is implemented properly as part of
+	 *       PMIC driver.
+	 */
+	rtcclk: clock-rtcclk {
+		compatible = "fixed-clock";
+		clock-output-names = "rtcclk";
+		#clock-cells = <0>;
+		clock-frequency = <32768>;
+	};
+
+	/*
+	 * cpu2 and cpu3 fail to come up consistently, which leads
+	 * to a hang later in the boot process.
+	 *
+	 * Disable them until the issue is figured out.
+	 */
+	cpus {
+		/delete-node/ cpu@200;
+		/delete-node/ cpu@300;
+
+		cpu-map {
+			cluster0 {
+				/delete-node/ core2;
+				/delete-node/ core3;
+			};
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		pinctrl-0 = <&key_volup>;
+		pinctrl-names = "default";
+
+		volup-key {
+			label = "Volume Up";
+			linux,code = <KEY_VOLUMEUP>;
+			gpios = <&gpa3 0 GPIO_ACTIVE_LOW>;
+			wakeup-source;
+		};
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x80000000>,
+		      <0x8 0x80000000 0x1 0x7e000000>;
+	};
+
+	/* TODO: Remove this once PMIC is implemented  */
+	reg_dummy: regulator-0 {
+		compatible = "regulator-fixed";
+		regulator-name = "dummy_reg";
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		cont_splash_mem: framebuffer@f6200000 {
+			reg = <0x0 0xf6200000 0x0 (1080 * 2340 * 4)>;
+			no-map;
+		};
+
+		debug_kinfo_reserved: debug-kinfo-reserved@fcfff000 {
+			reg = <0x0 0xfcfff000 0x0 0x1000>;
+			no-map;
+		};
+
+		log_itmon: log-itmon@fffe0000 {
+			reg = <0x0 0xfffe0000 0x0 0x20000>;
+			no-map;
+		};
+	};
+};
+
+&cmu_hsi0 {
+	clocks = <&xtcxo>,
+		 <&rtcclk>,
+		 <&cmu_top CLK_DOUT_CMU_HSI0_NOC>,
+		 <&cmu_top CLK_DOUT_CMU_HSI0_DPGTC>,
+		 <&cmu_top CLK_DOUT_CMU_HSI0_DPOSC>,
+		 <&cmu_top CLK_DOUT_CMU_HSI0_USB32DRD>;
+	clock-names = "oscclk", "rtcclk", "noc", "dpgtc", "dposc", "usb";
+};
+
+&ext_26m {
+	clock-frequency = <26000000>;
+};
+
+&ext_200m {
+	clock-frequency = <200000000>;
+};
+
+&mct_peris {
+	status = "okay";
+};
+
+&pinctrl_alive {
+	key_volup: key-volup-pins {
+		samsung,pins = "gpa3-0";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_F>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
+		samsung,pin-drv = <EXYNOS7_PIN_DRV_LV4>;
+	};
+};
+
+&ppi_cluster0 {
+	affinity = <&cpu0 &cpu1>;
+};
+
+&usb {
+	/* TODO: Replace these once PMIC is implemented  */
+	vdd10-supply = <&reg_dummy>;
+	vdd33-supply = <&reg_dummy>;
+	status = "okay";
+};
+
+&usb_con_phy {
+	status = "okay";
+};
+
+&usb_dwc3 {
+	dr_mode = "otg";
+	usb-role-switch;
+	role-switch-default-mode = "peripheral";
+	maximum-speed = "high-speed";
+};
+
+&usb_hsphy {
+	/* TODO: Replace these once PMIC is implemented  */
+	vdda12-supply = <&reg_dummy>;
+	vdd-supply = <&reg_dummy>;
+	status = "okay";
+};
+
+&xtcxo {
+	clock-frequency = <76800000>;
+};
-- 
2.43.0

Hi Ivaylo,

kernel test robot noticed the following build errors:

[auto build test ERROR on krzk/for-next]
[also build test ERROR on robh/for-next krzk-dt/for-next pinctrl-samsung/for-next linus/master v6.14-rc4 next-20250228]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Ivaylo-Ivanov/dt-bindings-arm-samsung-document-g0s-board-binding/20250223-203243
base:   https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux.git for-next
patch link:    https://lore.kernel.org/r/20250223123044.725493-4-ivo.ivanov.ivanov1%40gmail.com
patch subject: [PATCH v2 3/4] arm64: dts: exynos: add initial support for Samsung Galaxy S22+
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20250301/202503011651.Vto3vDw7-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250301/202503011651.Vto3vDw7-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202503011651.Vto3vDw7-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/arm64/boot/dts/exynos/exynos2200-g0s.dts:9:
>> arch/arm64/boot/dts/exynos/exynos2200.dtsi:8:10: fatal error: 'dt-bindings/clock/samsung,exynos2200-cmu.h' file not found
       8 | #include <dt-bindings/clock/samsung,exynos2200-cmu.h>
         |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 error generated.


vim +8 arch/arm64/boot/dts/exynos/exynos2200.dtsi

b661f5fc96c5e9 Ivaylo Ivanov 2025-02-23  @8  #include <dt-bindings/clock/samsung,exynos2200-cmu.h>
b661f5fc96c5e9 Ivaylo Ivanov 2025-02-23   9  #include <dt-bindings/interrupt-controller/arm-gic.h>
b661f5fc96c5e9 Ivaylo Ivanov 2025-02-23  10  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki