Restructure & rework power management config

system/roles/laptop/power/acpi.nix

@@ -0,0 +1,23 @@
+{ pkgs, lib, config, ...}: let
+  inherit (lib) mkIf;
+  deviceType = config.myOptions.device.roles.type;
+  acceptedTypes = ["laptop"];
+in {
+  config = mkIf (builtins.elem deviceType acceptedTypes) {
+    hardware.acpilight.enable = true;
+
+    environment.systemPackages = with pkgs; [ acpi ];
+
+    # handle ACPI events
+    services.acpid.enable = true;
+
+    boot = {
+      kernelModules = ["acpi_call"];
+      extraModulePackages = with config.boot.kernelPackages; [
+        acpi_call
+        cpupower
+      ];
+    };
+  };
+}
+

system/roles/laptop/power/auto-cpufreq/default.nix

@@ -1,47 +0,0 @@
-# This sets up power management using auto-cpufreq,
-# alongside with upower and power-profiles-daemon.
-# Together, this provides a complete alternative to TLP
-{ pkgs, lib, config, ...}: let
-  inherit (lib) mkIf mkDefault;
-  deviceType = config.myOptions.device.roles.type;
-  acceptedTypes = ["laptop"];
-in {
-  imports = [
-    ./power-profiles-daemon
-  ];
-
-  config = mkIf (builtins.elem deviceType acceptedTypes) {
-    services = {
-      # superior power management
-      auto-cpufreq = {
-        enable = true;
-        settings = let
-          MHz = x: x * 1000;
-        in {
-          battery = {
-            governor = "powersave";
-            scaling_min_freq = mkDefault (MHz 1200);
-            scaling_max_freq = mkDefault (MHz 1800);
-            turbo = "never";
-          };
-
-          charger = {
-            governor = "performance";
-            scaling_min_freq = mkDefault (MHz 1800);
-            scaling_max_freq = mkDefault (MHz 3800);
-            turbo = "auto";
-          };
-        };
-      };
-
-      # DBus service that provides power management support to applications
-      upower = {
-        enable = true;
-        percentageLow = 15;
-        percentageCritical = 5;
-        percentageAction = 3;
-        criticalPowerAction = "Hibernate";
-      };
-    };
-  };
-}

system/roles/laptop/power/default.nix

@@ -1,37 +1,15 @@
 { pkgs, lib, config, ...}: let
-  inherit (lib) mkIf mkDefault;
+  inherit (lib) mkIf;
   deviceType = config.myOptions.device.roles.type;
   acceptedTypes = ["laptop"];
 in {
   imports = [
-    ./auto-cpufreq
+    ./power-profiles-daemon
+    ./upower.nix
+    ./acpi.nix
   ];
 
   config = mkIf (builtins.elem deviceType acceptedTypes) {
-    hardware.acpilight.enable = true;
+    environment.systemPackages = with pkgs; [ powertop ];
-
-    environment.systemPackages = with pkgs; [
-      acpi
-      powertop
-    ];
-
-    services = {
-      # handle ACPI events
-      acpid.enable = true;
-
-      # temperature target on battery
-      undervolt = {
-        tempBat = 65; # deg C
-        package = pkgs.undervolt;
-      };
-    };
-
-    boot = {
-      kernelModules = ["acpi_call"];
-      extraModulePackages = with config.boot.kernelPackages; [
-        acpi_call
-        cpupower
-      ];
-    };
   };
 }

system/roles/laptop/power/upower.nix

@@ -0,0 +1,19 @@
+{ pkgs, lib, config, ...}: let
+  inherit (lib) mkIf;
+  deviceType = config.myOptions.device.roles.type;
+  acceptedTypes = ["laptop"];
+in {
+  config = mkIf (builtins.elem deviceType acceptedTypes) {
+    services = {
+      # DBus service that provides power management support to applications
+      upower = {
+        enable = true;
+        percentageLow = 15;
+        percentageCritical = 5;
+        percentageAction = 3;
+        criticalPowerAction = "Hibernate";
+      };
+    };
+  };
+}
+