Merge branch 'staging-next' into staging

Resolved the following conflicts:

- kernel flags between 09176d28a0 and 2b28822d8d
- clojure-lsp between 3fa00685ce and e03c068af5

pkgs/os-specific/linux/firmware/fwupd/default.nix

@@ -91,6 +91,12 @@ let
 
   self = stdenv.mkDerivation rec {
     pname = "fwupd";
+    # A regression is present in https://github.com/fwupd/fwupd/commit/fde4b1676a2c64e70bebd88f7720307c62635654
+    # released with 1.5.6.
+    # Fix for the regression: https://github.com/fwupd/fwupd/pull/2902
+    # Maintainer says a new release is to be expected in a few days:
+    #   https://twitter.com/hughsient/status/1362476792297185289
+    # In the mean time, please do not release 1.5.6 and go strait to 1.5.7
     version = "1.5.5";
 
     # libfwupd goes to lib

pkgs/os-specific/linux/kernel/common-config.nix

@@ -95,7 +95,9 @@ let
       BLK_CGROUP_IOCOST = whenAtLeast "5.4" yes;
       IOSCHED_DEADLINE = whenOlder "5.0" yes; # Removed in 5.0-RC1
       MQ_IOSCHED_DEADLINE = whenAtLeast "4.11" yes;
+      BFQ_GROUP_IOSCHED = whenAtLeast "4.12" yes;
       MQ_IOSCHED_KYBER = whenAtLeast "4.12" yes;
+      IOSCHED_BFQ = whenAtLeast "4.12" module;
     };
 
     # Enable NUMA.
@@ -258,6 +260,7 @@ let
       DRM_AMD_DC_DCN2_0 = whenBetween "5.3" "5.6" yes;
       DRM_AMD_DC_DCN2_1 = whenBetween "5.4" "5.6" yes;
       DRM_AMD_DC_DCN3_0 = whenBetween "5.9" "5.11" yes;
+      DRM_AMD_DC_DCN = whenAtLeast "5.11" yes;
       DRM_AMD_DC_HDCP = whenAtLeast "5.5" yes;
       DRM_AMD_DC_SI = whenAtLeast "5.10" yes;
     } // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux") {