feat: update kernel, add patches for backlight, etc.

configuration.nix

@@ -11,6 +11,7 @@
     pkgs.linux-firmware (pkgs.callPackage ./pkgs/t14s-firmware.nix { })
   ];
 
+  boot.loader.efi.canTouchEfiVariables = false;
   boot.loader.systemd-boot = {
     enable = true;
     extraFiles = {
@@ -48,6 +49,38 @@
 
   services.getty.autologinUser = lib.mkDefault "root";
 
+  nixpkgs.overlays = [
+    (final: prev: {
+      qrtr = prev.callPackage ./pkgs/qrtr.nix {};
+      qmic = prev.callPackage ./pkgs/qmic.nix {};
+      rmtfs = prev.callPackage ./pkgs/rmtfs.nix { inherit (final) qrtr qmic; };
+      pd-mapper = final.callPackage ./pkgs/pd-mapper.nix { inherit (final) qrtr; };
+    })
+  ];
+
+  systemd.services = {
+    pd-mapper = {
+      unitConfig = {
+        Requires = "qrtr-ns.service";
+        After = "qrtr-ns.service";
+      };
+      serviceConfig = {
+        Restart = "always";
+        ExecStart = "${pkgs.pd-mapper}/bin/pd-mapper";
+      };
+      wantedBy = [
+        "multi-user.target"
+      ];
+    };
+    qrtr-ns = {
+      serviceConfig = {
+        ExecStart = "${pkgs.qrtr}/bin/qrtr-ns -v -f 1";
+        Restart = "always";
+      };
+      wantedBy = ["multi-user.target"];
+    };
+  };
+
   nixpkgs.config.allowUnfree = true;
 
   nix.settings = {

kernel.nix

@@ -1,71 +1,102 @@
 { config, lib, pkgs, ... }:
 
 let
-  inherit (config.boot.loader) efi;
-
   linux_x1e_pkg = { buildLinux, ... } @ args:
     buildLinux (args // rec {
-      version = "6.10.0";
-      modDirVersion = "6.10.0-next-20240725";
+      version = "6.12.0";
+      modDirVersion = "6.12.0-rc3";
 
-      src = pkgs.fetchFromGitLab {
-        domain = "git.codelinaro.org";
-        owner = "abel.vesa";
+      src = pkgs.fetchFromGitHub {
+       owner = "jhovold";
        repo = "linux";
-        rev = "x1e80100-20240725"; # "x1e80100-next";
-        hash = "sha256-0DFmPJEFl+cQT3Li4vuptBwavRc9CQOatd8TIYht+54=";
+       # wip/x1e80100-6.12-rc3
+       rev = "84318c8e3038f579070e7c5d109d1d2311a5f437";
+       hash = "sha256-kpuzjqcI4YGS+S9OvIUhm6z8xCGMA5h5+JlcHhoEETM=";
       };
       kernelPatches = (args.kernelPatches or [ ]);
 
-      extraMeta.branch = "6.10";
+      extraMeta.branch = "6.12";
     } // (args.argsOverride or { }));
 
-  linux_x1e = pkgs.callPackage linux_x1e_pkg { defconfig = "x1e_defconfig"; };
+  linux_x1e = pkgs.callPackage linux_x1e_pkg {
+    defconfig = "johan_defconfig";
+  };
+
   linuxPackages_x1e = pkgs.recurseIntoAttrs (pkgs.linuxPackagesFor linux_x1e);
 
-  dtb = "${linuxPackages_x1e.kernel}/dtbs/qcom/x1e78100-lenovo-thinkpad-t14s.dtb";
-  dtbHash = builtins.hashFile "md5" dtb;
-  dtbName = "x1e78100-${dtbHash}.dtb";
 in {
+  hardware = {
+    deviceTree = {
+      enable = true;
+      name = "qcom/x1e78100-lenovo-thinkpad-t14s.dtb";
+    };
+  };
+
   boot = {
     kernelPackages = linuxPackages_x1e;
 
+    kernelPatches = [
+      {
+        name = "backlight";
+        patch = ./patches/backlight.patch;
+      }
+      {
+        name = "bluetooth";
+        patch = ./patches/bluetooth.patch;
+      }
+      {
+        name = "disable-type-c-dp";
+        patch = ./patches/disable-type-c-dp.patch;
+      }
+      {
+        name = "vmlinuz.efi";
+        patch = null;
+        extraStructuredConfig = with lib.kernel; {
+          EFI_ZBOOT = lib.mkForce no;
+        };
+      }
+      {
+        name = "disable-qr-code-panic-screen";
+        patch = null;
+        extraStructuredConfig = with lib.kernel; {
+          DRM_PANIC_SCREEN_QR_CODE = lib.mkForce no;
+        };
+      }
+      {
+        name = "disable-rust";
+        patch = null;
+        extraStructuredConfig = with lib.kernel; {
+          RUST = lib.mkForce no;
+        };
+      }
+    ];
+
     kernelParams = [
-      "dtb=${dtbName}"
-
-      #"initcall_debug"
-
-      #"earlycon=efifb"
-      "console=tty0"
-      #"ignore_loglevel"
-      #"keep_bootcon"
-
       "regulator_ignore_unused"
       "clk_ignore_unused"
       "pd_ignore_unused"
       "arm64.nopauth"
-      #"acpi=no"
       "efi=novamap"
-      #"efi=noruntime"
-
       "pcie_aspm.policy=powersupersave"
       "iommu.strict=0"
       "iommu.passthrough=0"
-
-      #"earlyprintk=xdbc"
-      #"usbcore.autosuspend=-1"
-      "module_blacklist=edac_core,qcom_q6v5_pas"
     ];
 
     supportedFilesystems.zfs = false;
 
     initrd = {
+      systemd = {
+        enable = true;
+        tpm2.enable = false;
+      };
+
       includeDefaultModules = false;
 
       availableKernelModules = [
         "nvme"
         "uas"
         "usb-storage"
+        "pcie-qcom"
 
         "gpio-sbu-mux"
         "leds-qcom-lpg"
@@ -96,36 +127,6 @@ in {
         # fat32
         "vfat" "nls-cp437" "nls-iso8859-1"
       ];
-
-      systemd = {
-        enable = true;
-        enableTpm2 = false;
     };
   };
-
-    loader = {
-      systemd-boot.enable = lib.mkForce true;
-      efi.canTouchEfiVariables = false;
-      systemd-boot.extraFiles = {
-        "${dtbName}" = dtb;
-      };
-    };
-  };
-
-  system.activationScripts.t14s-gen6-dtb = ''
-    in_package="${dtb}"
-    esp_tool_folder="${efi.efiSysMountPoint}/"
-    in_esp="''${esp_tool_folder}${dtbName}"
-    in_esp_backup="''${esp_tool_folder}/dtb/${dtbName}"
-    in_esp_backup_dir="''${esp_tool_folder}/dtb/"
-    mkdir -p "$in_esp_backup_dir"
-    cp "$in_package" "$in_esp_backup"
-    >&2 echo "Ensuring $in_esp in EFI System Partition"
-    if ! ${pkgs.diffutils}/bin/cmp --silent "$in_package" "$in_esp"; then
-      >&2 echo "Copying $in_package -> $in_esp"
-      mkdir -p "$esp_tool_folder"
-      cp "$in_package" "$in_esp"
-      sync
-    fi
-  '';
 }

patches/backlight.patch

@@ -0,0 +1,51 @@
+diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
+index 04d6983ca8f3..0d42b275fd66 100644
+--- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
++++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
+@@ -19,6 +19,14 @@ / {
+ 	compatible = "lenovo,thinkpad-t14s", "qcom,x1e78100", "qcom,x1e80100";
+ 	chassis-type = "laptop";
+ 
++	backlight: backlight {
++		compatible = "pwm-backlight";
++		pwms = <&pmk8550_pwm 0 5000000>;
++		enable-gpios = <&pmc8380_3_gpios 4 GPIO_ACTIVE_HIGH>;
++		pinctrl-0 = <&edp_bl_en>, <&edp_bl_pwm>;
++		pinctrl-names = "default";
++	};
++
+ 	gpio-keys {
+ 		compatible = "gpio-keys";
+ 
+@@ -744,12 +752,9 @@ &mdss_dp3 {
+ 	aux-bus {
+ 		panel {
+ 			compatible = "edp-panel";
+-			enable-gpios = <&pmc8380_3_gpios 4 GPIO_ACTIVE_HIGH>;
++			backlight = <&backlight>;
+ 			power-supply = <&vreg_edp_3p3>;
+ 
+-			pinctrl-0 = <&edp_bl_en>;
+-			pinctrl-names = "default";
+-
+ 			port {
+ 				edp_panel_in: endpoint {
+ 					remote-endpoint = <&mdss_dp3_out>;
+@@ -849,6 +854,17 @@ rtmr0_1p15_reg_en: rtmr0-1p15-reg-en-state {
+ 	};
+ };
+ 
++&pmk8550_pwm {
++	status = "okay";
++};
++
++&pmk8550_gpios {
++	edp_bl_pwm: edp-bl-pwm-state {
++		pins = "gpio5";
++		function = "func3";
++	};
++};
++
+ &qupv3_0 {
+ 	status = "okay";
+ };

patches/bluetooth.patch

@@ -0,0 +1,48 @@
+diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
+index 04d6983ca8f3..0bb3ca93cfaa 100644
+--- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
++++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
+@@ -19,6 +19,11 @@ / {
+ 	compatible = "lenovo,thinkpad-t14s", "qcom,x1e78100", "qcom,x1e80100";
+ 	chassis-type = "laptop";
+ 
++	aliases {
++		serial0 = &uart21;
++		serial1 = &uart14;
++	};
++
+ 	gpio-keys {
+ 		compatible = "gpio-keys";
+ 
+@@ -1013,6 +1018,31 @@ wcd_default: wcd-reset-n-active-state {
+ 		bias-disable;
+ 		output-low;
+ 	};
++
++	bt_en_default: bt-en-sleep {
++		pins = "gpio116";
++		function = "gpio";
++		output-low;
++		bias-disable;
++		qcom,drive-strength = <16>;
++	};
++};
++
++&uart14 {
++	status = "okay";
++
++	bluetooth: bt_wcn7850 {
++		compatible = "qcom,wcn7850-bt";
++		pinctrl-names = "default";
++		pinctrl-0 = <&bt_en_default>;
++		enable-gpios = <&tlmm 116 GPIO_ACTIVE_HIGH>;
++		max-speed = <3200000>;
++	};
++};
++
++&uart21 {
++	compatible = "qcom,geni-debug-uart";
++	status = "okay";
+ };
+ 
+ &usb_1_ss0_hsphy {

patches/disable-type-c-dp.patch

@@ -0,0 +1,27 @@
+diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
+index 04d6983ca8f3..998cb8920dbc 100644
+--- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
++++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts
+@@ -719,22 +719,6 @@ &mdss {
+ 	status = "okay";
+ };
+ 
+-&mdss_dp0 {
+-	status = "okay";
+-};
+-
+-&mdss_dp0_out {
+-	data-lanes = <0 1 2 3>;
+-};
+-
+-&mdss_dp1 {
+-	status = "okay";
+-};
+-
+-&mdss_dp1_out {
+-	data-lanes = <0 1 2 3>;
+-};
+-
+ &mdss_dp3 {
+ 	compatible = "qcom,x1e80100-dp";
+ 	/delete-property/ #sound-dai-cells;

pkgs/pd-mapper.nix

@@ -0,0 +1,33 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  pkg-config,
+  qrtr,
+  lzma,
+}:
+
+stdenv.mkDerivation {
+  pname = "pd-mapper";
+  version = "2024-06-19";
+
+  src = fetchFromGitHub {
+    owner = "linux-msm";
+    repo = "pd-mapper";
+    rev = "e7c42e1522249593302a5b8920b9e7b42dc3f25e";
+    sha256 = "sha256-gTUpltbY5439IEEvnxnt8WOFUgfpQUJWr5f+OB12W8A=";
+  };
+
+  nativeBuildInputs = [ pkg-config lzma ];
+
+  buildInputs = [ qrtr ];
+
+  installFlags = [ "prefix=$(out)" ];
+
+  meta = with lib; {
+    description = "pd mapper";
+    homepage = "https://github.com/linux-msm/pd-mapper";
+    license = licenses.bsd3;
+    platforms = platforms.linux;
+  };
+}

pkgs/qmic.nix

@@ -0,0 +1,26 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub
+}:
+
+stdenv.mkDerivation {
+  pname = "qmic";
+  version = "2022-07-18";
+
+  src = fetchFromGitHub {
+    owner = "linux-msm";
+    repo = "qmic";
+    rev = "4574736afce75aa5eec1e1069a19563410167c9f";
+    sha256 = "sha256-0/mIg98pN66ZaVsQ6KmZINuNfiKvdEHMsqDx0iciF8w=";
+  };
+
+  installFlags = [ "prefix=$(out)" ];
+
+  meta = with lib; {
+    description = "QMI IDL compiler";
+    homepage = "https://github.com/linux-msm/qmic";
+    license = licenses.bsd3;
+    platforms = platforms.aarch64;
+  };
+}

pkgs/qrtr.nix

@@ -0,0 +1,33 @@
+{
+  stdenv,
+  lib,
+  fetchFromGitHub,
+  meson,
+  cmake,
+  pkg-config,
+  systemd,
+  ninja,
+}:
+
+stdenv.mkDerivation {
+  pname = "qrtr";
+  version = "2024-05-21";
+
+  src = fetchFromGitHub {
+    owner = "linux-msm";
+    repo = "qrtr";
+    rev = "daf7f4cc326a5036dcce2bd7deaf2c32841b0336";
+    hash = "sha256-OGx5fxxtrNN9EJJxxH4MTDRFGsyu4LNo+ks46zbJqF0=";
+  };
+
+  nativeBuildInputs = [ meson cmake pkg-config systemd ninja ];
+
+  installFlags = [ "prefix=$(out)" ];
+
+  meta = with lib; {
+    description = "QMI IDL compiler";
+    homepage = "https://github.com/linux-msm/qrtr";
+    license = licenses.bsd3;
+    platforms = platforms.aarch64;
+  };
+}

pkgs/rmtfs.nix

@@ -0,0 +1,31 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  udev,
+  qrtr,
+  qmic
+}:
+
+stdenv.mkDerivation {
+  pname = "rmtfs";
+  version = "2024-03-18";
+
+  buildInputs = [ udev qrtr qmic ];
+
+  src = fetchFromGitHub {
+    owner = "linux-msm";
+    repo = "rmtfs";
+    rev = "33e1e40615efc59b17a515afe857c51b8b8c1ad1";
+    hash = "sha256-AxFuDmfLTcnnwm+nezwLc8yaHcX+pFkX5qSIO38T/BM=";
+  };
+
+  installFlags = [ "prefix=$(out)" ];
+
+  meta = with lib; {
+    description = "Qualcomm Remote Filesystem Service";
+    homepage = "https://github.com/linux-msm/rmtfs";
+    license = licenses.bsd3;
+    platforms = platforms.aarch64;
+  };
+}

pkgs/t14s-firmware.nix

@@ -7,13 +7,13 @@
 
 stdenvNoCC.mkDerivation rec {
   pname = "linux-firmware";
-  version = "20240726";
+  version = "20241003";
 
   src = fetchFromGitHub {
     owner = "jollheef";
     repo = "linux-firmware-x1e78100-lenovo-thinkpad-t14s";
-    rev = "4ba0b781ffc27cb48736942822192b548a316838";
-    hash = "sha256-ZeV6JRxU1gMwtWZH8sePCrZXFa27GxoKpLK4sg3Ljyo=";
+    rev = "e3ba8bb550b023b9f8501360f1d85d74d3de96b4";
+    hash = "sha256-REkQpg+27to11VoDfAksvqzi5M7MDjAcAvR7P8cnRk0=";
   };
 
   installPhase = ''

scripts/make-image.sh

@@ -5,7 +5,7 @@ efi_part_label=i_t14sg6_efi
 nix_part_label=i_t14sg6_nix
 boot_size=256M
 
-fallocate -l4G ${file}
+fallocate -l8G ${file}
 
 parted ${file} mklabel gpt
 parted ${file} mkpart ${efi_part_label} fat32 0% ${boot_size}
@@ -23,7 +23,7 @@ mkdir /mnt/boot
 mount ${drive}p1 /mnt/boot
 
 mkdir -p /mnt/etc/nixos
-cp -r pkgs *.nix /mnt/etc/nixos/
+cp -r patches pkgs *.nix /mnt/etc/nixos/
 nixos-install --root /mnt --no-root-password
 
 umount -R /mnt