Driver for Allo Katana DAC

Author: allocom

arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts

@@ -1,7 +1,5 @@
 /*
  * Definitions for Allo Katana DAC boards
- *
- * NB. The Katana DAC board contains SABER DAC.
  */
 
 /dts-v1/;
@@ -13,7 +11,16 @@
 	fragment@0 {
 		target = <&i2s>;
 		__overlay__ {
+			#sound-dai-cells = <0>;
 			status = "okay";
+			cpu_port: port {
+				cpu_endpoint: endpoint {
+					remote-endpoint = <&codec_endpoint>;
+					bitclock-master = <&codec_endpoint>;
+					frame-master = <&codec_endpoint>;
+					dai-format = "i2s";
+				};
+			};
 		};
 	};
 
@@ -24,23 +31,27 @@
 			#size-cells = <0>;
 			status = "okay";
 
-			sabre-ess@30 {
+			allo-katana-codec@30 {
 				#sound-dai-cells = <0>;
-				compatible = "saber,sabre-ess";
+				compatible = "allo,allo-katana-codec";
 				reg = <0x30>;
-				status = "okay";
+				port {
+					codec_endpoint: endpoint {
+					remote-endpoint = <&cpu_endpoint>;
+					};
+				};
 			};
 		};
 	};
 
 	fragment@2 {
 		target = <&sound>;
 		katana_dac: __overlay__ {
-			compatible = "allo,katana-dac";
-			i2s-controller = <&i2s>;
+			compatible = "audio-graph-card";
+			label = "Allo Katana";
+			dais = <&cpu_port>;
 			status = "okay";
 		};
 	};
-
 };
 

sound/soc/bcm/Kconfig

@@ -178,7 +178,9 @@ config SND_BCM2708_SOC_ALLO_DIGIONE
 config SND_BCM2708_SOC_ALLO_KATANA_DAC
 	tristate "Support for Allo Katana DAC"
 	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
-	select SND_SOC_SABRE_ESS_I2C
+	depends on I2C
+	select REGMAP_I2C
+	select SND_AUDIO_GRAPH_CARD
 	help
 	  Say Y or M if you want to add support for Allo Katana DAC.
 

sound/soc/bcm/Makefile

@@ -34,7 +34,7 @@ snd-soc-allo-boss-dac-objs := allo-boss-dac.o
 snd-soc-allo-piano-dac-objs := allo-piano-dac.o
 snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o
 snd-soc-allo-digione-objs := allo-digione.o
-snd-soc-allo-katana-dac-objs := allo-katana-dac.o
+snd-soc-allo-katana-codec-objs := allo-katana-codec.o
 snd-soc-pisound-objs := pisound.o
 snd-soc-fe-pi-audio-objs := fe-pi-audio.o
 
@@ -61,6 +61,6 @@ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += snd-soc-allo-boss-dac.o
 obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o
 obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o
 obj-$(CONFIG_SND_BCM2708_SOC_ALLO_DIGIONE) += snd-soc-allo-digione.o
-obj-$(CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC) += snd-soc-allo-katana-dac.o
+obj-$(CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC) += snd-soc-allo-katana-codec.o
 obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o
 obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o