From a6a2ba7139adf1a5661c21d79217f19d8e620f62 Mon Sep 17 00:00:00 2001
From: sternenseemann <sternenseemann@systemli.org>
Date: Tue, 1 Mar 2022 22:03:50 +0100
Subject: modules/thinkpad: load the acpi_call kernel module for TLP

This kernel module is required for some operations supported by
TLP (e.g. tlp recalibrate), so we should enable it and be it to prevent
confusing error messages (as I encountered).
---
 modules/hardware/thinkpad.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'modules/hardware')

diff --git a/modules/hardware/thinkpad.nix b/modules/hardware/thinkpad.nix
index f94b5934..e4c1cd70 100644
--- a/modules/hardware/thinkpad.nix
+++ b/modules/hardware/thinkpad.nix
@@ -27,5 +27,15 @@ in
 
     # TLP Linux Advanced Power Management
     services.tlp.enable = mkDefault true;
+    boot = {
+      # acpi_call is required for some tlp features, e.g. discharge/recalibrate
+      kernelModules = [
+        "acpi_call"
+      ];
+
+      extraModulePackages = [
+        config.boot.kernelPackages.acpi_call
+      ];
+    };
   };
 }
-- 
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