Merge tag 'v4.13-rc1' into patchwork

Linux v4.13-rc1

* tag 'v4.13-rc1': (11136 commits)
  Linux v4.13-rc1
  random: reorder READ_ONCE() in get_random_uXX
  random: suppress spammy warnings about unseeded randomness
  replace incorrect strscpy use in FORTIFY_SOURCE
  kmod: throttle kmod thread limit
  kmod: add test driver to stress test the module loader
  MAINTAINERS: give kmod some maintainer love
  xtensa: use generic fb.h
  fault-inject: add /proc/<pid>/fail-nth
  fault-inject: simplify access check for fail-nth
  fault-inject: make fail-nth read/write interface symmetric
  fault-inject: parse as natural 1-based value for fail-nth write interface
  fault-inject: automatically detect the number base for fail-nth write interface
  kernel/watchdog.c: use better pr_fmt prefix
  MAINTAINERS: move the befs tree to kernel.org
  lib/atomic64_test.c: add a test that atomic64_inc_not_zero() returns an int
  mm: fix overflow check in expand_upwards()
  ubifs: Set double hash cookie also for RENAME_EXCHANGE
  ubifs: Massage assert in ubifs_xattr_set() wrt. init_xattrs
  ubifs: Don't leak kernel memory to the MTD
  ...

1 files changed, 129 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card.txt b/Documentation/devicetree/bindings/sound/audio-graph-card.txt
new file mode 100644
index 000000000000..6e6720aa33f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/audio-graph-card.txt
@@ -0,0 +1,129 @@
+Audio Graph Card:
+
+Audio Graph Card specifies audio DAI connections of SoC <-> codec.
+It is based on common bindings for device graphs.
+see ${LINUX}/Documentation/devicetree/bindings/graph.txt
+
+Basically, Audio Graph Card property is same as Simple Card.
+see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt
+
+Below are same as Simple-Card.
+
+- label
+- widgets
+- routing
+- dai-format
+- frame-master
+- bitclock-master
+- bitclock-inversion
+- frame-inversion
+- dai-tdm-slot-num
+- dai-tdm-slot-width
+- clocks / system-clock-frequency
+
+Required properties:
+
+- compatible				: "audio-graph-card";
+- dais					: list of CPU DAI port{s}
+
+Optional properties:
+- pa-gpios: GPIO used to control external amplifier.
+
+Example: Single DAI case
+
+	sound_card {
+		compatible = "audio-graph-card";
+
+		dais = <&cpu_port>;
+	};
+
+	dai-controller {
+		...
+		cpu_port: port {
+			cpu_endpoint: endpoint {
+				remote-endpoint = <&codec_endpoint>;
+
+				dai-format = "left_j";
+				...
+			};
+		};
+	};
+
+	audio-codec {
+		...
+		port {
+			codec_endpoint: endpoint {
+				remote-endpoint = <&cpu_endpoint>;
+			};
+		};
+	};
+
+Example: Multi DAI case
+
+	sound-card {
+		compatible = "audio-graph-card";
+
+		label = "sound-card";
+
+		dais = <&cpu_port0
+			&cpu_port1
+			&cpu_port2>;
+	};
+
+	audio-codec@0 {
+		...
+		port {
+			codec0_endpoint: endpoint {
+				remote-endpoint = <&cpu_endpoint0>;
+			};
+		};
+	};
+
+	audio-codec@1 {
+		...
+		port {
+			codec1_endpoint: endpoint {
+				remote-endpoint = <&cpu_endpoint1>;
+			};
+		};
+	};
+
+	audio-codec@2 {
+		...
+		port {
+			codec2_endpoint: endpoint {
+				remote-endpoint = <&cpu_endpoint2>;
+			};
+		};
+	};
+
+	dai-controller {
+		...
+		ports {
+			cpu_port0: port@0 {
+				cpu_endpoint0: endpoint {
+					remote-endpoint = <&codec0_endpoint>;
+
+					dai-format = "left_j";
+					...
+				};
+			};
+			cpu_port1: port@1 {
+				cpu_endpoint1: endpoint {
+					remote-endpoint = <&codec1_endpoint>;
+
+					dai-format = "i2s";
+					...
+				};
+			};
+			cpu_port2: port@2 {
+				cpu_endpoint2: endpoint {
+					remote-endpoint = <&codec2_endpoint>;
+
+					dai-format = "i2s";
+					...
+				};
+			};
+		};
+	};
+