From 43fe882270f9d2abdc61736ca88efc7362bcad73 Mon Sep 17 00:00:00 2001
From: Don Harper <duck@duckland.org>
Date: Thu, 21 Aug 2025 13:39:59 -0500
Subject: [PATCH] hosts | add auto-cpufreq, switch loki & smaug to use,
 formating

---
 hosts/loki/default.nix             | 14 +++++++++++---
 hosts/smaug/default.nix            | 12 ++++++++++--
 hosts/vars.nix                     |  4 ++--
 hosts/workstation/auto-cpufreq.nix | 30 ++++++++++++++++++++++++++++++
 hosts/workstation/default.nix      |  1 +
 5 files changed, 54 insertions(+), 7 deletions(-)
 create mode 100644 hosts/workstation/auto-cpufreq.nix

diff --git a/hosts/loki/default.nix b/hosts/loki/default.nix
index f5df8e2..52cd7b6 100644
--- a/hosts/loki/default.nix
+++ b/hosts/loki/default.nix
@@ -1,4 +1,11 @@
-{ inputs, outputs, lib, config, pkgs, ... }: {
+{
+  inputs,
+  outputs,
+  lib,
+  config,
+  pkgs,
+  ...
+}: {
   imports = [
     inputs.nixos-hardware.nixosModules.dell-xps-13-9310
     ./hardware-configuration.nix
@@ -6,7 +13,7 @@
     ../workstation
   ];
   networking.hostName = "loki";
-  boot.binfmt.emulatedSystems = [ "aarch64-linux" ];
+  boot.binfmt.emulatedSystems = ["aarch64-linux"];
   variables.address = "100.72.0.1";
   variables.swayScale = "1.1";
 
@@ -18,7 +25,8 @@
     kvm.enable = false;
     games.enable = true;
     wine.enable = false;
-    tlp.enable = true;
+    tlp.enable = false;
+    auto-cpufreq.enable = true;
     gnome-calendar.enable = true;
   };
   wm = {
diff --git a/hosts/smaug/default.nix b/hosts/smaug/default.nix
index 5dbedeb..5cef073 100644
--- a/hosts/smaug/default.nix
+++ b/hosts/smaug/default.nix
@@ -1,4 +1,11 @@
-{ inputs, outputs, lib, config, pkgs, ... }: {
+{
+  inputs,
+  outputs,
+  lib,
+  config,
+  pkgs,
+  ...
+}: {
   imports = [
     inputs.nixos-hardware.nixosModules.lenovo-thinkpad-x260
     inputs.nixos-hardware.nixosModules.common-pc-laptop
@@ -19,7 +26,8 @@
     kvm.enable = true;
     games.enable = true;
     wine.enable = false;
-    tlp.enable = true;
+    tlp.enable = false;
+    auto-cpufreq = true;
     gnome-calendar.enable = true;
   };
   wm = {
diff --git a/hosts/vars.nix b/hosts/vars.nix
index ee8dc05..9480aa4 100644
--- a/hosts/vars.nix
+++ b/hosts/vars.nix
@@ -1,8 +1,8 @@
-{ lib, ... }: {
+{lib, ...}: {
   options = {
     variables = lib.mkOption {
       type = lib.types.attrs;
-      default = { };
+      default = {};
     };
   };
 }
diff --git a/hosts/workstation/auto-cpufreq.nix b/hosts/workstation/auto-cpufreq.nix
new file mode 100644
index 0000000..c2d0ac1
--- /dev/null
+++ b/hosts/workstation/auto-cpufreq.nix
@@ -0,0 +1,30 @@
+{
+  pkgs,
+  inputs,
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.roles.auto-cpufreq;
+in {
+  options.roles.auto-cpufreq = {enable = mkEnableOption "roles auto-cpufreq";};
+  config = mkIf cfg.enable {
+    services.auto-cpufreq = {
+      enable = true;
+      settings = {
+        battery = {
+          governor = "powersave";
+          turbo = "never";
+          enable_thresholds = true;
+          start_threshold = 50;
+          stop_threshold = 80;
+        };
+        charger = {
+          governor = "performance";
+          turbo = "auto";
+        };
+      };
+    };
+  };
+}
diff --git a/hosts/workstation/default.nix b/hosts/workstation/default.nix
index a084f70..633033f 100644
--- a/hosts/workstation/default.nix
+++ b/hosts/workstation/default.nix
@@ -48,6 +48,7 @@ in {
     ./detect-reboot-needed.nix
     ./kmscon.nix
     ./systemd.nix
+    ./auto-cpufreq.nix
     ./tlp.nix
     ./upgrade-diff.nix
     ./wine.nix