From 7b70b5ec860722270f77c25cbcf0f0deac81e292 Mon Sep 17 00:00:00 2001
From: Colin <colin@uninsane.org>
Date: Tue, 15 Aug 2023 10:49:07 +0000
Subject: [PATCH] linux-megous: build WITHOUT modem_power module, for better
 eg25-manager compatibility

---
 pkgs/additional/linux-megous/default.nix | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/pkgs/additional/linux-megous/default.nix b/pkgs/additional/linux-megous/default.nix
index 299508c8..0676151b 100644
--- a/pkgs/additional/linux-megous/default.nix
+++ b/pkgs/additional/linux-megous/default.nix
@@ -1,5 +1,6 @@
 { lib
 , buildLinux
+, fetchpatch
 , fetchFromGitHub
 , pkgs
 # something inside nixpkgs calls `override` on the kernel and passes in extra arguments
@@ -40,6 +41,9 @@ let
     SCHED_DEBUG = lib.mkForce no;  # determines /sys/kernel/debug/sched
     # SUNRPC_DEBUG = lib.mkForce no;  # i use NFS though
 
+    # modem_power is incompatible with eg25-manager: <https://gitlab.com/mobian1/eg25-manager/-/issues/38>
+    MODEM_POWER = no;
+
     # taken from mobile-nixos config?? or upstream megous config??
     RTL8723CS = module;
     BT_HCIUART_3WIRE = yes;
@@ -107,6 +111,15 @@ let
     pkgs.kernelPatches.bridge_stp_helper
     pkgs.kernelPatches.request_key_helper
     # (patchDefconfig kernelConfig)
+    {
+      # Drop modem-power from DT to allow eg25-manager to have full control.
+      # source: <https://github.com/NixOS/mobile-nixos/pull/573>
+      name = "remove-modem-power-from-devicetree";
+      patch = fetchpatch {
+        url = "https://gitlab.com/postmarketOS/pmaports/-/raw/164e9f010dcf56642d8e6f422a994b927ae23f38/device/main/linux-postmarketos-allwinner/0007-dts-pinephone-drop-modem-power-node.patch";
+        sha256 = "nYCoaYj8CuxbgXfy5q43Xb/ebe5DlJ1Px571y1/+lfQ=";
+      };
+    }
   ];