move dts config from kernel to boot

The kernel does not need to know about the DTS. I am prepared
to be very slightly injured on this hill.

devices/gl-ar750/default.nix

@@ -42,6 +42,12 @@
       boot.tftp = {
         loadAddress = "0x00A00000";
       };
+      boot.dts = {
+        src = "${openwrt}/target/linux/ath79/dts/qca9531_glinet_gl-ar750.dts";
+        includes =  [
+          "${openwrt}/target/linux/ath79/dts"
+        ];
+      };
       kernel = {
         src = pkgs.pkgsBuildBuild.fetchurl {
           name = "linux.tar.gz";
@@ -61,12 +67,6 @@
           patches ${openwrt}/target/linux/generic/hack-5.15/*.patch
           patches ${openwrt}/target/linux/ath79/patches-5.15/*.patch
         '';
-        dts = {
-          src = "${openwrt}/target/linux/ath79/dts/qca9531_glinet_gl-ar750.dts";
-          includes =  [
-            "${openwrt}/target/linux/ath79/dts"
-          ];
-        };
         config = {
           MIPS_ELF_APPENDED_DTB = "y";
           OF = "y";

devices/gl-mt300a/default.nix

@@ -29,6 +29,12 @@
       boot.tftp = {
         loadAddress = "0x00A00000";
       };
+      boot.dts = {
+        src = "${openwrt}/target/linux/ramips/dts/mt7620a_glinet_gl-mt300a.dts";
+        includes = [
+          "${openwrt}/target/linux/ramips/dts"
+        ];
+      };
 
       kernel = {
         src = pkgs.fetchurl {
@@ -49,12 +55,6 @@
           patches ${openwrt}/target/linux/generic/hack-5.15/*.patch
           patches ${openwrt}/target/linux/ramips/patches-5.15/*.patch
         '';
-        dts = {
-          src = "${openwrt}/target/linux/ramips/dts/mt7620a_glinet_gl-mt300a.dts";
-          includes = [
-            "${openwrt}/target/linux/ramips/dts"
-          ];
-        };
         config = {
           MIPS_ELF_APPENDED_DTB = "y";
           OF = "y";

devices/gl-mt300n-v2/default.nix

@@ -29,6 +29,12 @@
       boot.tftp = {
         loadAddress = "0x00A00000";
       };
+      boot.dts = {
+        src = "${openwrt}/target/linux/ramips/dts/mt7628an_glinet_gl-mt300n-v2.dts";
+        includes = [
+          "${openwrt}/target/linux/ramips/dts"
+        ];
+      };
 
       kernel = {
         src = pkgs.fetchurl {
@@ -49,12 +55,6 @@
           patches ${openwrt}/target/linux/generic/hack-5.15/*.patch
           patches ${openwrt}/target/linux/ramips/patches-5.15/*.patch
         '';
-        dts = {
-          src = "${openwrt}/target/linux/ramips/dts/mt7628an_glinet_gl-mt300n-v2.dts";
-          includes = [
-            "${openwrt}/target/linux/ramips/dts"
-          ];
-        };
         config = {
           MIPS_ELF_APPENDED_DTB = "y";
           OF = "y";

modules/base.nix

@@ -29,13 +29,6 @@ in {
         default = "true";
         type = types.lines;
       } ;
-      dts = {
-        src = mkOption { type = types.path; };
-        includes = mkOption {
-          default = [];
-          type = types.listOf types.path;
-        };
-      };
       config = mkOption {
         # mostly the values are y n or m, but sometimes
         # other strings are also used
@@ -48,10 +41,19 @@ in {
     users =  mkOption {
       type = types.attrsOf types.anything;
     };
-    boot.commandLine = mkOption {
+    boot = {
+      dts = {
+        src = mkOption { type = types.path; };
+        includes = mkOption {
+          default = [];
+          type = types.listOf types.path;
+        };
+      };
+      commandLine = mkOption {
         type = types.listOf types.nonEmptyStr;
         default = [];
       };
+    };
     device.defaultOutput = mkOption {
       type = types.nonEmptyStr;
     };

modules/outputs.nix

@@ -23,8 +23,8 @@ in
         inherit (config.kernel) config src extraPatchPhase;
       };
       dtb =  (callPackage ../kernel/dtb.nix {}) {
-        dts = config.kernel.dts.src;
+        dts = config.boot.dts.src;
-        includes = config.kernel.dts.includes ++ [
+        includes = config.boot.dts.includes ++ [
           "${kernel.headers}/include"
         ];
       };