Merging upstream version 6.8.9.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 594 insertions, 91 deletions

diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 76a9f1e8cd..83e3ba773f 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -9,7 +9,6 @@
 
 #include <linux/clk.h>
 #include <linux/device.h>
-#include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of.h>
diff --git a/sound/soc/generic/audio-graph-card2-custom-sample.dtsi b/sound/soc/generic/audio-graph-card2-custom-sample.dtsi
index 8acaa2ddb3..9efd31206c 100644
--- a/sound/soc/generic/audio-graph-card2-custom-sample.dtsi
+++ b/sound/soc/generic/audio-graph-card2-custom-sample.dtsi
@@ -58,12 +58,32 @@
 	 *			| |-> codec13
 	 *			+-+
 	 *
-	 * [Multi-CPU/Codec]
+	 * [Multi-CPU/Codec-0]
 	 *		+-+		+-+
 	 *	cpu1 <--| |<-@--------->| |-> codec1
 	 *	cpu2 <--| |		| |-> codec2
 	 *		+-+		+-+
 	 *
+	 * [Multi-CPU/Codec-1]
+	 *
+	 *		+-+		+-+
+	 *		| |<-@--------->| |
+	 *		| |		| |
+	 *	cpu8 <--| |<----------->| |-> codec14
+	 *	cpu9 <--| |<---+------->| |-> codec15
+	 *		+-+	\------>| |-> codec16
+	 *				+-+
+	 *
+	 * [Multi-CPU/Codec-2]
+	 *
+	 *		+-+		+-+
+	 *		| |<-@--------->| |
+	 *		| |		| |
+	 *	cpu10 <-| |<----------->| |-> codec17
+	 *	cpu11 <-| |<-----+----->| |-> codec18
+	 *	cpu12 <-| |<----/	+-+
+	 *		+-+
+	 *
 	 * [DPCM]
 	 *
 	 *	CPU3/CPU4 are converting rate to 44100
@@ -144,16 +164,39 @@
 			 */
 			 &cpu0
 
-			/* [Semi-Multi] */
+			/*
+			 * [Semi-Multi]
+			 * cpu7/codec12/codec13
+			 */
 			&sm0
 
 			/*
-			 * [Multi-CPU/Codec]: cpu side only
+			 * [Multi-CPU/Codec-0]: cpu side only
 			 * cpu1/cpu2/codec1/codec2
 			 */
 			 &mcpu0
 
 			/*
+			 * [Multi-CPU/Codec-1]: cpu side only
+			 * cpu8/cpu9/codec14/codec15/codec16
+			 *
+			 * Because it will reach to the maximum of sound minor number,
+			 * disable it so far.
+			 * If you want to try it, please disable some other one instead.
+			 */
+			//&mcpu1
+
+			/*
+			 * [Multi-CPU/Codec-2]: cpu side only
+			 * cpu10/cpu11/cpu12/codec17/codec18
+			 *
+			 * Because it will reach to the maximum of sound minor number,
+			 * disable it so far.
+			 * If you want to try it, please disable some other one instead.
+			 */
+			//&mcpu2
+
+			/*
 			 * [DPCM]: both FE / BE
 			 * cpu3/cpu4/codec3
 			 */
@@ -182,64 +225,259 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 
+			/*
+			 * [Multi-CPU-0]
+			 *
+			 *		+---+		+---+
+			 *	cpu1 <--|A X|<-@------->|x a|-> codec1
+			 *	cpu2 <--|B  |		|  b|-> codec2
+			 *		+---+		+---+
+			 */
 			ports@0 {
 				reg = <0>;
 				#address-cells = <1>;
 				#size-cells = <0>;
-			/* [Multi-CPU] */
-			mcpu0:	port@0 { reg = <0>; mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; };
-				port@1 { reg = <1>; mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>;    }; };
-				port@2 { reg = <2>; mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>;    }; };
+			mcpu0:	port@0 { reg = <0>; mcpu00_ep: endpoint { remote-endpoint = <&mcodec00_ep>; };};/* (X) to pair */
+				port@1 { reg = <1>; mcpu01_ep: endpoint { remote-endpoint = <&cpu1_ep>;     };};/* (A) Multi Element */
+				port@2 { reg = <2>; mcpu02_ep: endpoint { remote-endpoint = <&cpu2_ep>;     };};/* (B) Multi Element */
 			};
 
-			/* [Multi-Codec] */
+			/*
+			 * [Multi-Codec-0]
+			 *
+			 *		+---+		+---+
+			 *	cpu1 <--|A X|<-@------->|x a|-> codec1
+			 *	cpu2 <--|B  |		|  b|-> codec2
+			 *		+---+		+---+
+			 */
 			ports@1 {
 				reg = <1>;
 				#address-cells = <1>;
 				#size-cells = <0>;
-				port@0 { reg = <0>; mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>;  }; };
-				port@1 { reg = <1>; mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
-				port@2 { reg = <2>; mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; };
+				port@0 { reg = <0>; mcodec00_ep: endpoint { remote-endpoint = <&mcpu00_ep>; };};/* (x) to pair */
+				port@1 { reg = <1>; mcodec01_ep: endpoint { remote-endpoint = <&codec1_ep>; };};/* (a) Multi Element */
+				port@2 { reg = <2>; mcodec02_ep: endpoint { remote-endpoint = <&codec2_ep>; };};/* (b) Multi Element */
 			};
 
-			/* [DPCM-Multi]::BE */
+			/*
+			 * [DPCM-Multi]::BE
+			 *
+			 *	FE			BE
+			 *		  ****		+---+
+			 *	cpu5 <-@--*  *-----@--->|x a|-> codec4
+			 *	cpu6 <-@--*  *		|  b|-> codec5
+			 *		  ****		+---+
+			 */
 			ports@2 {
 				reg = <2>;
 				#address-cells = <1>;
 				#size-cells = <0>;
-				port@0 { reg = <0>; mbe_ep:  endpoint { remote-endpoint = <&be10_ep>;  }; };
-				port@1 { reg = <1>; mbe1_ep: endpoint { remote-endpoint = <&codec4_ep>; }; };
-				port@2 { reg = <2>; mbe2_ep: endpoint { remote-endpoint = <&codec5_ep>; }; };
+				port@0 { reg = <0>; mbe_ep:  endpoint { remote-endpoint = <&be10_ep>;   };};/* (x) to pair */
+				port@1 { reg = <1>; mbe1_ep: endpoint { remote-endpoint = <&codec4_ep>; };};/* (a) Multi Element */
+				port@2 { reg = <2>; mbe2_ep: endpoint { remote-endpoint = <&codec5_ep>; };};/* (b) Multi Element */
 			};
 
-			/* [Codec2Codec-Multi]::CPU */
+			/*
+			 * [Codec2Codec-Multi]::CPU
+			 *
+			 *		+---+
+			 *	   +-@->|X A|-> codec8
+			 *	   |	|  B|-> codec9
+			 *	   |	+---+
+			 *	   |	+---+
+			 *	   +--->|x a|-> codec10
+			 *		|  b|-> codec11
+			 *		+---+
+			 */
 			ports@3 {
 				reg = <3>;
 				#address-cells = <1>;
 				#size-cells = <0>;
-				port@0 { reg = <0>; mc2c0_ep:  endpoint { remote-endpoint = <&c2cmf_ep>;  }; };
-				port@1 { reg = <1>; mc2c00_ep: endpoint { remote-endpoint = <&codec8_ep>; }; };
-				port@2 { reg = <2>; mc2c01_ep: endpoint { remote-endpoint = <&codec9_ep>; }; };
+				port@0 { reg = <0>; mc2c0_ep:  endpoint { remote-endpoint = <&c2cmf_ep>;  };};/* (X) to pair */
+				port@1 { reg = <1>; mc2c00_ep: endpoint { remote-endpoint = <&codec8_ep>; };};/* (A) Multi Element */
+				port@2 { reg = <2>; mc2c01_ep: endpoint { remote-endpoint = <&codec9_ep>; };};/* (B) Multi Element */
 			};
 
-			/* [Codec2Codec-Multi]::Codec */
+			/*
+			 * [Codec2Codec-Multi]::Codec
+			 *
+			 *		+---+
+			 *	   +-@->|X A|-> codec8
+			 *	   |	|  B|-> codec9
+			 *	   |	+---+
+			 *	   |	+---+
+			 *	   +--->|x a|-> codec10
+			 *		|  b|-> codec11
+			 *		+---+
+			 */
 			ports@4 {
 				reg = <4>;
 				#address-cells = <1>;
 				#size-cells = <0>;
-				port@0 { reg = <0>; mc2c1_ep:  endpoint { remote-endpoint = <&c2cmb_ep>;  }; };
-				port@1 { reg = <1>; mc2c10_ep: endpoint { remote-endpoint = <&codec10_ep>; }; };
-				port@2 { reg = <2>; mc2c11_ep: endpoint { remote-endpoint = <&codec11_ep>; }; };
+				port@0 { reg = <0>; mc2c1_ep:  endpoint { remote-endpoint = <&c2cmb_ep>;   };};/* (x) to pair */
+				port@1 { reg = <1>; mc2c10_ep: endpoint { remote-endpoint = <&codec10_ep>; };};/* (a) Multi Element */
+				port@2 { reg = <2>; mc2c11_ep: endpoint { remote-endpoint = <&codec11_ep>; };};/* (b) Multi Element */
 			};
 
-			/* [Semi-Multi] */
+			/*
+			 * [Semi-Multi]
+			 *
+			 *			+---+
+			 *	cpu7 <-@------->|X A|-> codec12
+			 *			|  B|-> codec13
+			 *			+---+
+			 */
 			ports@5 {
 				reg = <5>;
 				#address-cells = <1>;
 				#size-cells = <0>;
-				port@0 { reg = <0>; smcodec0_ep: endpoint { remote-endpoint = <&cpu7_ep>;    }; };
-				port@1 { reg = <1>; smcodec1_ep: endpoint { remote-endpoint = <&codec12_ep>; }; };
-				port@2 { reg = <2>; smcodec2_ep: endpoint { remote-endpoint = <&codec13_ep>; }; };
+				port@0 { reg = <0>; smcodec0_ep: endpoint { remote-endpoint = <&cpu7_ep>;    };};/* (X) to pair */
+				port@1 { reg = <1>; smcodec1_ep: endpoint { remote-endpoint = <&codec12_ep>; };};/* (A) Multi Element */
+				port@2 { reg = <2>; smcodec2_ep: endpoint { remote-endpoint = <&codec13_ep>; };};/* (B) Multi Element */
+			};
+
+			/*
+			 * [Multi-CPU-1]
+			 *
+			 *		+---+		+---+
+			 *		|  X|<-@------->|x  |
+			 *		|   |		|   |
+			 *	cpu8 <--|A 1|<--------->|3 a|-> codec14
+			 *	cpu9 <--|B 2|<---+----->|4 b|-> codec15
+			 *		+---+	  \---->|5 c|-> codec16
+			 *				+---+
+			 */
+			ports@6 {
+				reg = <6>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			mcpu1:	port@0 { reg = <0>; mcpu10_ep: endpoint { remote-endpoint = <&mcodec10_ep>; };};    /* (X) to pair */
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+					mcpu11_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&cpu8_ep>;       }; /* (A) Multi Element */
+					mcpu11_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcodec11_ep_0>; }; /* (1) connected Codec */
+				};
+				port@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+					mcpu12_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&cpu9_ep>;       }; /* (B) Multi Element */
+					mcpu12_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcodec12_ep_0>; }; /* (2) connected Codec */
+					mcpu12_ep_1: endpoint@2 { reg = <2>; remote-endpoint = <&mcodec13_ep_0>; }; /* (2) connected Codec */
+				};
+			};
+
+			/*
+			 * [Multi-Codec-1]
+			 *
+			 *		+---+		+---+
+			 *		|  X|<-@------->|x  |
+			 *		|   |		|   |
+			 *	cpu8 <--|A 1|<--------->|3 a|-> codec14
+			 *	cpu9 <--|B 2|<---+----->|4 b|-> codec15
+			 *		+---+	  \---->|5 c|-> codec16
+			 *				+---+
+			 */
+			ports@7 {
+				reg = <7>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mcodec10_ep: endpoint { remote-endpoint = <&mcpu10_ep>;  };};   /* (x) to pair */
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+					mcodec11_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&codec14_ep>;  }; /* (a) Multi Element */
+					mcodec11_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu11_ep_0>; }; /* (3) connected CPU */
+				};
+				port@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+					mcodec12_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&codec15_ep>;  }; /* (b) Multi Element */
+					mcodec12_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu12_ep_0>; }; /* (4) connected CPU */
+				};
+				port@3 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <3>;
+					mcodec13_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&codec16_ep>;  }; /* (c) Multi Element */
+					mcodec13_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu12_ep_1>; }; /* (5) connected CPU */
+				};
+			};
+
+			/*
+			 * [Multi-CPU-2]
+			 *
+			 *		+---+		+---+
+			 *		|  X|<-@------->|x  |
+			 *		|   |		|   |
+			 *	cpu10 <-|A 1|<--------->|4 a|-> codec17
+			 *	cpu11 <-|B 2|<-----+--->|5 b|-> codec18
+			 *	cpu12 <-|C 3|<----/	+---+
+			 *		+---+
+			 */
+			ports@8 {
+				reg = <8>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			mcpu2:	port@0 { reg = <0>; mcpu20_ep: endpoint { remote-endpoint = <&mcodec20_ep>; };};    /* (X) to pair */
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+					mcpu21_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&cpu10_ep>;      }; /* (A) Multi Element */
+					mcpu21_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcodec21_ep_0>; }; /* (1) connected Codec */
+				};
+				port@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+					mcpu22_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&cpu11_ep>;      }; /* (B) Multi Element */
+					mcpu22_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcodec22_ep_0>; }; /* (2) connected Codec */
+				};
+				port@3 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <3>;
+					mcpu23_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&cpu12_ep>;      }; /* (C) Multi Element */
+					mcpu23_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcodec22_ep_1>; }; /* (3) connected Codec */
+				};
+			};
+
+			/*
+			 * [Multi-Codec-2]
+			 *
+			 *		+---+		+---+
+			 *		|  X|<-@------->|x  |
+			 *		|   |		|   |
+			 *	cpu10 <-|A 1|<--------->|4 a|-> codec17
+			 *	cpu11 <-|B 2|<-----+--->|5 b|-> codec18
+			 *	cpu12 <-|C 3|<----/	+---+
+			 *		+---+
+			 */
+			ports@9 {
+				reg = <9>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mcodec20_ep: endpoint { remote-endpoint = <&mcpu20_ep>;  };};   /* (x) to pair */
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+					mcodec21_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&codec17_ep>;  }; /* (a) Multi Element */
+					mcodec21_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu21_ep_0>; }; /* (4) connected CPU */
+				};
+				port@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+					mcodec22_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&codec18_ep>;  }; /* (b) Multi Element */
+					mcodec22_ep_0: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu22_ep_0>; }; /* (5) connected CPU */
+					mcodec22_ep_1: endpoint@2 { reg = <2>; remote-endpoint = <&mcpu23_ep_0>; }; /* (5) connected CPU */
+				};
 			};
 		};
 
@@ -252,11 +490,27 @@
 
 				#address-cells = <1>;
 				#size-cells = <0>;
-			/* [DPCM]::FE */
+				/*
+				 * [DPCM]::FE
+				 *
+				 *	FE				BE
+				 *			****
+				 *	cpu3 <-@(fe00)--*  *--(be0)@--> codec3
+				 *	cpu4 <-@(fe01)--*  *		(44.1kHz)
+				 *			****
+				 */
 			fe00:	port@0 { reg = <0>; fe00_ep: endpoint { remote-endpoint = <&cpu3_ep>; }; };
 			fe01:	port@1 { reg = <1>; fe01_ep: endpoint { remote-endpoint = <&cpu4_ep>; }; };
 
-			/* [DPCM-Multi]::FE */
+				/*
+				 * [DPCM-Multi]::FE
+				 *
+				 *		FE			BE
+				 *			****		+-+
+				 *	cpu5 <-@(fe10)--*  *---(be1)@-->| |-> codec4
+				 *	cpu6 <-@(fe11)--*  *		| |-> codec5
+				 *			****		+-+
+				 */
 			fe10:	port@2 { reg = <2>; fe10_ep: endpoint { remote-endpoint = <&cpu5_ep>; }; };
 			fe11:	port@3 { reg = <3>; fe11_ep: endpoint { remote-endpoint = <&cpu6_ep>; }; };
 			};
@@ -266,10 +520,26 @@
 
 				#address-cells = <1>;
 				#size-cells = <0>;
-			/* [DPCM]::BE */
+				/*
+				 * [DPCM]::BE
+				 *
+				 *	FE				BE
+				 *			****
+				 *	cpu3 <-@(fe00)--*  *--(be0)@--> codec3
+				 *	cpu4 <-@(fe01)--*  *		(44.1kHz)
+				 *			****
+				 */
 			be0:	port@0 { reg = <0>; be00_ep: endpoint { remote-endpoint = <&codec3_ep>; }; };
 
-			/* [DPCM-Multi]::BE */
+				/*
+				 * [DPCM-Multi]::BE
+				 *
+				 *		FE			BE
+				 *			****		+-+
+				 *	cpu5 <-@(fe10)--*  *---(be1)@-->| |-> codec4
+				 *	cpu6 <-@(fe11)--*  *		| |-> codec5
+				 *			****		+-+
+				 */
 			be1:	port@1 { reg = <1>; be10_ep: endpoint { remote-endpoint = <&mbe_ep>; }; };
 			};
 		};
@@ -277,7 +547,13 @@
 		codec2codec {
 			#address-cells = <1>;
 			#size-cells = <0>;
-			/* [Codec2Codec] */
+			/*
+			 * [Codec2Codec]
+			 *
+			 *	+-@(c2c)-> codec6
+			 *	|
+			 *	+--------> codec7
+			 */
 			ports@0 {
 				reg = <0>;
 
@@ -289,7 +565,18 @@
 				port@1 { reg = <1>; c2cb_ep: endpoint { remote-endpoint = <&codec7_ep>; }; };
 			};
 
-			/* [Codec2Codec-Multi] */
+			/*
+			 * [Codec2Codec-Multi]
+			 *
+			 *			+-+
+			 *	   +-@(c2c_m)-->| |-> codec8
+			 *	   |		| |-> codec9
+			 *	   |		+-+
+			 *	   |		+-+
+			 *	   +----------->| |-> codec10
+			 *			| |-> codec11
+			 *			+-+
+			 */
 			ports@1 {
 				reg = <1>;
 
@@ -323,9 +610,9 @@
 			/* [Normal] */
 			cpu0: port@0 { reg = <0>; cpu0_ep: endpoint { remote-endpoint = <&codec0_ep>; }; };
 
-			/* [Multi-CPU] */
-			      port@1 { reg = <1>; cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; };
-			      port@2 { reg = <2>; cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; };
+			/* [Multi-CPU-0] */
+			      port@1 { reg = <1>; cpu1_ep: endpoint { remote-endpoint = <&mcpu01_ep>; }; };
+			      port@2 { reg = <2>; cpu2_ep: endpoint { remote-endpoint = <&mcpu02_ep>; }; };
 
 			/* [DPCM]::FE */
 			      port@3 { reg = <3>; cpu3_ep: endpoint { remote-endpoint = <&fe00_ep>; }; };
@@ -337,6 +624,14 @@
 
 			/* [Semi-Multi] */
 			sm0:  port@7 { reg = <7>; cpu7_ep: endpoint { remote-endpoint = <&smcodec0_ep>; }; };
+
+			/* [Multi-CPU-1] */
+			      port@8 { reg = <8>; cpu8_ep: endpoint { remote-endpoint = <&mcpu11_ep>;   }; };
+			      port@9 { reg = <9>; cpu9_ep: endpoint { remote-endpoint = <&mcpu12_ep>;   }; };
+			/* [Multi-CPU-2] */
+			      port@a { reg = <10>; cpu10_ep: endpoint { remote-endpoint = <&mcpu21_ep>; }; };
+			      port@b { reg = <11>; cpu11_ep: endpoint { remote-endpoint = <&mcpu22_ep>; }; };
+			      port@c { reg = <12>; cpu12_ep: endpoint { remote-endpoint = <&mcpu23_ep>; }; };
 		};
 	};
 
@@ -363,9 +658,9 @@
 			/* [Normal] */
 			port@0  { reg = <0>; codec0_ep:  endpoint { remote-endpoint = <&cpu0_ep>; }; };
 
-			/* [Multi-Codec] */
-			port@1  { reg = <1>; codec1_ep:  endpoint { remote-endpoint = <&mcodec1_ep>; }; };
-			port@2  { reg = <2>; codec2_ep:  endpoint { remote-endpoint = <&mcodec2_ep>; }; };
+			/* [Multi-Codec-0] */
+			port@1  { reg = <1>; codec1_ep:  endpoint { remote-endpoint = <&mcodec01_ep>; }; };
+			port@2  { reg = <2>; codec2_ep:  endpoint { remote-endpoint = <&mcodec02_ep>; }; };
 
 			/* [DPCM]::BE */
 			port@3  {
@@ -395,6 +690,13 @@
 			port@c { reg = <12>; codec12_ep: endpoint { remote-endpoint = <&smcodec1_ep>; }; };
 			port@d { reg = <13>; codec13_ep: endpoint { remote-endpoint = <&smcodec2_ep>; }; };
 
+			/* [Multi-Codec-1] */
+			port@e  { reg = <14>; codec14_ep: endpoint { remote-endpoint = <&mcodec11_ep>; }; };
+			port@f  { reg = <15>; codec15_ep: endpoint { remote-endpoint = <&mcodec12_ep>; }; };
+			port@10 { reg = <16>; codec16_ep: endpoint { remote-endpoint = <&mcodec13_ep>; }; };
+			/* [Multi-Codec-2] */
+			port@11 { reg = <17>; codec17_ep: endpoint { remote-endpoint = <&mcodec21_ep>; }; };
+			port@12 { reg = <18>; codec18_ep: endpoint { remote-endpoint = <&mcodec22_ep>; }; };
 		};
 	};
 };
diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
index 7146611df7..62606e20be 100644
--- a/sound/soc/generic/audio-graph-card2.c
+++ b/sound/soc/generic/audio-graph-card2.c
@@ -8,7 +8,6 @@
 // based on ${LINUX}/sound/soc/generic/audio-graph-card.c
 #include <linux/clk.h>
 #include <linux/device.h>
-#include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -83,32 +82,32 @@
 	Multi-CPU/Codec
  ************************************
 
-It has connection part (= X) and list part (= y).
-links indicates connection part of CPU side (= A).
+It has link connection part (= X,x) and list part (= A,B,a,b).
+"links" is connection part of CPU side (= @).
 
-	    +-+   (A)	     +-+
- CPU1 --(y) | | <-(X)--(X)-> | | (y)-- Codec1
- CPU2 --(y) | |		     | | (y)-- Codec2
-	    +-+		     +-+
+	+----+		+---+
+ CPU1 --|A  X| <-@----> |x a|-- Codec1
+ CPU2 --|B   |		|  b|-- Codec2
+	+----+		+---+
 
-	sound {
-		compatible = "audio-graph-card2";
+ sound {
+	compatible = "audio-graph-card2";
 
-(A)		links = <&mcpu>;
+(@)	links = <&mcpu>;
 
-		multi {
-			ports@0 {
-(X) (A)			mcpu:	port@0 { mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; };
-(y)				port@1 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; };
-(y)				port@2 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; };
-			};
-			ports@1 {
-(X)				port@0 { mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; };
-(y)				port@1 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
-(y)				port@2 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; };
-			};
+	multi {
+		ports@0 {
+(@)		mcpu:	port@0 { mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>;	}; };	// (X) to pair
+			port@1 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>;	}; };	// (A) Multi Element
+			port@2 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>;	}; };	// (B) Multi Element
+		};
+		ports@1 {
+			port@0 { mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>;	}; };	// (x) to pair
+			port@1 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>;	}; };	// (a) Multi Element
+			port@2 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>;	}; };	// (b) Multi Element
 		};
 	};
+ };
 
  CPU {
 	ports {
@@ -328,9 +327,9 @@ static struct device_node *graph_get_next_multi_ep(struct device_node **port)
 	/*
 	 * multi {
 	 *	ports {
-	 * =>	lnk:	port@0 { ... };
-	 *		port@1 { ep { ... = rep0 } };
-	 *		port@2 { ep { ... = rep1 } };
+	 * =>	lnk:	port@0 { ...		   }; // to pair
+	 *		port@1 { ep { ... = rep0 } }; // Multi Element
+	 *		port@2 { ep { ... = rep1 } }; // Multi Element
 	 *		...
 	 *	};
 	 * };
@@ -504,40 +503,203 @@ static int __graph_parse_node(struct simple_util_priv *priv,
 	return 0;
 }
 
-static int graph_parse_node(struct simple_util_priv *priv,
-			    enum graph_type gtype,
-			    struct device_node *port,
-			    struct link_info *li, int is_cpu)
+static int graph_parse_node_multi_nm(struct snd_soc_dai_link *dai_link,
+				     int *nm_idx, int cpu_idx,
+				     struct device_node *mcpu_port)
 {
-	struct device_node *ep;
-	int ret = 0;
+	/*
+	 *		+---+		+---+
+	 *		|  X|<-@------->|x  |
+	 *		|   |		|   |
+	 *	cpu0 <--|A 1|<--------->|4 a|-> codec0
+	 *	cpu1 <--|B 2|<-----+--->|5 b|-> codec1
+	 *	cpu2 <--|C 3|<----/	+---+
+	 *		+---+
+	 *
+	 * multi {
+	 *	ports {
+	 *		port@0 { mcpu_top_ep	{...  = mcodec_ep;	}; };	// (X) to pair
+	 * <mcpu_port>	port@1 { mcpu0_ep	{ ... = cpu0_ep;	};	// (A) Multi Element
+	 *			 mcpu0_ep_0	{ ... = mcodec0_ep_0;	}; };	// (1) connected Codec
+	 *		port@2 { mcpu1_ep	{ ... = cpu1_ep;	};	// (B) Multi Element
+	 *			 mcpu1_ep_0	{ ... = mcodec1_ep_0;	}; };	// (2) connected Codec
+	 *		port@3 { mcpu2_ep	{ ... = cpu2_ep;	};	// (C) Multi Element
+	 *			 mcpu2_ep_0	{ ... = mcodec1_ep_1;	}; };	// (3) connected Codec
+	 *	};
+	 *
+	 *	ports {
+	 *		port@0 { mcodec_top_ep	{...  = mcpu_ep;	}; };	// (x) to pair
+	 * <mcodec_port>port@1 { mcodec0_ep	{ ... = codec0_ep;	};	// (a) Multi Element
+	 *			 mcodec0_ep_0	{ ... = mcpu0_ep_0;	}; };	// (4) connected CPU
+	 *		port@2 { mcodec1_ep	{ ... = codec1_ep;	};	// (b) Multi Element
+	 *			 mcodec1_ep_0	{ ... = mcpu1_ep_0;	};	// (5) connected CPU
+	 *			 mcodec1_ep_1	{ ... = mcpu2_ep_0;	}; };	// (5) connected CPU
+	 *	};
+	 * };
+	 */
+	struct device_node *mcpu_ep		= port_to_endpoint(mcpu_port);
+	struct device_node *mcpu_ep_n		= mcpu_ep;
+	struct device_node *mcpu_port_top	= of_get_next_child(of_get_parent(mcpu_port), NULL);
+	struct device_node *mcpu_ep_top		= port_to_endpoint(mcpu_port_top);
+	struct device_node *mcodec_ep_top	= of_graph_get_remote_endpoint(mcpu_ep_top);
+	struct device_node *mcodec_port_top	= of_get_parent(mcodec_ep_top);
+	struct device_node *mcodec_ports	= of_get_parent(mcodec_port_top);
+	int nm_max = max(dai_link->num_cpus, dai_link->num_codecs);
+	int ret = -EINVAL;
 
-	if (graph_lnk_is_multi(port)) {
-		int idx;
+	if (cpu_idx > dai_link->num_cpus)
+		goto mcpu_err;
 
-		of_node_get(port);
+	while (1) {
+		struct device_node *mcodec_ep_n;
+		struct device_node *mcodec_port_i;
+		struct device_node *mcodec_port;
+		int codec_idx;
 
-		for (idx = 0;; idx++) {
-			ep = graph_get_next_multi_ep(&port);
-			if (!ep)
-				break;
+		if (*nm_idx > nm_max)
+			break;
 
-			ret = __graph_parse_node(priv, gtype, ep,
-						 li, is_cpu, idx);
-			of_node_put(ep);
-			if (ret < 0)
+		mcpu_ep_n = of_get_next_child(mcpu_port, mcpu_ep_n);
+		if (!mcpu_ep_n) {
+			ret = 0;
+			break;
+		}
+
+		mcodec_ep_n	= of_graph_get_remote_endpoint(mcpu_ep_n);
+		mcodec_port	= of_get_parent(mcodec_ep_n);
+
+		if (mcodec_ports != of_get_parent(mcodec_port))
+			goto mcpu_err;
+
+		codec_idx = 0;
+		mcodec_port_i = of_get_next_child(mcodec_ports, NULL);
+		while (1) {
+			if (codec_idx > dai_link->num_codecs)
+				goto mcodec_err;
+
+			mcodec_port_i = of_get_next_child(mcodec_ports, mcodec_port_i);
+
+			if (!mcodec_port_i)
+				goto mcodec_err;
+
+			if (mcodec_port_i == mcodec_port)
 				break;
+
+			codec_idx++;
 		}
-	} else {
-		/* Single CPU / Codec */
-		ep = port_to_endpoint(port);
-		ret = __graph_parse_node(priv, gtype, ep, li, is_cpu, 0);
+
+		dai_link->ch_maps[*nm_idx].cpu		= cpu_idx;
+		dai_link->ch_maps[*nm_idx].codec	= codec_idx;
+
+		(*nm_idx)++;
+
+		of_node_put(mcodec_port_i);
+mcodec_err:
+		of_node_put(mcodec_port);
+		of_node_put(mcpu_ep_n);
+		of_node_put(mcodec_ep_n);
+	}
+mcpu_err:
+	of_node_put(mcpu_ep);
+	of_node_put(mcpu_port_top);
+	of_node_put(mcpu_ep_top);
+	of_node_put(mcodec_ep_top);
+	of_node_put(mcodec_port_top);
+	of_node_put(mcodec_ports);
+
+	return ret;
+}
+
+static int graph_parse_node_multi(struct simple_util_priv *priv,
+				  enum graph_type gtype,
+				  struct device_node *port,
+				  struct link_info *li, int is_cpu)
+{
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *ep;
+	int ret = -ENOMEM;
+	int nm_idx = 0;
+	int nm_max = max(dai_link->num_cpus, dai_link->num_codecs);
+
+	/*
+	 * create ch_maps if CPU:Codec = N:M
+	 * DPCM is out of scope
+	 */
+	if (gtype != GRAPH_DPCM && !dai_link->ch_maps &&
+	    dai_link->num_cpus > 1 && dai_link->num_codecs > 1 &&
+	    dai_link->num_cpus != dai_link->num_codecs) {
+
+		dai_link->ch_maps = devm_kcalloc(dev, nm_max,
+					sizeof(struct snd_soc_dai_link_ch_map), GFP_KERNEL);
+		if (!dai_link->ch_maps)
+			goto multi_err;
+	}
+
+	for (int idx = 0;; idx++) {
+		/*
+		 * multi {
+		 *	ports {
+		 * <port>	port@0 { ... 			    }; // to pair
+		 *		port@1 { mcpu1_ep { ... = cpu1_ep };}; // Multi Element
+		 *		port@2 { mcpu2_ep { ... = cpu2_ep };}; // Multi Element
+		 *	};
+		 * };
+		 *
+		 * cpu {
+		 *	ports {
+		 * <ep>		port@0 { cpu1_ep   { ... = mcpu1_ep };};
+		 *	};
+		 * };
+		 */
+		ep = graph_get_next_multi_ep(&port);
+		if (!ep)
+			break;
+
+		ret = __graph_parse_node(priv, gtype, ep, li, is_cpu, idx);
 		of_node_put(ep);
+		if (ret < 0)
+			goto multi_err;
+
+		/* CPU:Codec = N:M */
+		if (is_cpu && dai_link->ch_maps) {
+			ret = graph_parse_node_multi_nm(dai_link, &nm_idx, idx, port);
+			if (ret < 0)
+				goto multi_err;
+		}
 	}
 
+	if (is_cpu && dai_link->ch_maps && (nm_idx != nm_max))
+		ret = -EINVAL;
+
+multi_err:
 	return ret;
 }
 
+static int graph_parse_node_single(struct simple_util_priv *priv,
+				   enum graph_type gtype,
+				   struct device_node *port,
+				   struct link_info *li, int is_cpu)
+{
+	struct device_node *ep = port_to_endpoint(port);
+	int ret = __graph_parse_node(priv, gtype, ep, li, is_cpu, 0);
+
+	of_node_put(ep);
+
+	return ret;
+}
+
+static int graph_parse_node(struct simple_util_priv *priv,
+			    enum graph_type gtype,
+			    struct device_node *port,
+			    struct link_info *li, int is_cpu)
+{
+	if (graph_lnk_is_multi(port))
+		return graph_parse_node_multi(priv, gtype, port, li, is_cpu);
+	else
+		return graph_parse_node_single(priv, gtype, port, li, is_cpu);
+}
+
 static void graph_parse_daifmt(struct device_node *node,
 			       unsigned int *daifmt, unsigned int *bit_frame)
 {
@@ -597,6 +759,7 @@ static void graph_link_init(struct simple_util_priv *priv,
 	struct device_node *ep;
 	struct device_node *ports;
 	unsigned int daifmt = 0, daiclk = 0;
+	bool playback_only = 0, capture_only = 0;
 	unsigned int bit_frame = 0;
 
 	if (graph_lnk_is_multi(port)) {
@@ -635,6 +798,11 @@ static void graph_link_init(struct simple_util_priv *priv,
 	if (is_cpu_node)
 		daiclk = snd_soc_daifmt_clock_provider_flipped(daiclk);
 
+	graph_util_parse_link_direction(port, &playback_only, &capture_only);
+
+	dai_link->playback_only = playback_only;
+	dai_link->capture_only = capture_only;
+
 	dai_link->dai_fmt	= daifmt | daiclk;
 	dai_link->init		= simple_util_dai_init;
 	dai_link->ops		= &graph_ops;
@@ -920,17 +1088,33 @@ static int graph_counter(struct device_node *lnk)
 	 *
 	 * multi {
 	 *	ports {
-	 * =>		lnk:	port@0 { ... };
-	 *			port@1 { ... };
-	 *			port@2 { ... };
+	 * =>		lnk:	port@0 { ... }; // to pair
+	 *			port@1 { ... }; // Multi Element
+	 *			port@2 { ... }; // Multi Element
 	 *			...
 	 *	};
 	 * };
 	 *
 	 * ignore first lnk part
 	 */
-	if (graph_lnk_is_multi(lnk))
-		return of_graph_get_endpoint_count(of_get_parent(lnk)) - 1;
+	if (graph_lnk_is_multi(lnk)) {
+		struct device_node *ports = of_get_parent(lnk);
+		struct device_node *port = NULL;
+		int cnt = 0;
+
+		/*
+		 * CPU/Codec = N:M case has many endpoints.
+		 * We can't use of_graph_get_endpoint_count() here
+		 */
+		while(1) {
+			port = of_get_next_child(ports, port);
+			if (!port)
+				break;
+			cnt++;
+		}
+
+		return cnt - 1;
+	}
 	/*
 	 * Single CPU / Codec
 	 */
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index cfa70a56ff..81077d16d2 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -5,7 +5,6 @@
 // Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 
 #include <linux/clk.h>
-#include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -1129,6 +1128,25 @@ parse_dai_end:
 }
 EXPORT_SYMBOL_GPL(graph_util_parse_dai);
 
+int graph_util_parse_link_direction(struct device_node *np,
+				    bool *playback_only, bool *capture_only)
+{
+	bool is_playback_only = false;
+	bool is_capture_only = false;
+
+	is_playback_only = of_property_read_bool(np, "playback-only");
+	is_capture_only = of_property_read_bool(np, "capture-only");
+
+	if (is_playback_only && is_capture_only)
+		return -EINVAL;
+
+	*playback_only = is_playback_only;
+	*capture_only = is_capture_only;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(graph_util_parse_link_direction);
+
 /* Module information */
 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
 MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");