[PATCH 2/3] ARM: DTS: AM3517-EVM: Add support for UI board and Audio

[Adam Ford <aford173@gmail.com>]

The full AM3517-EVM shipped with an add-on board which contained
two Audio codecs, a GPIO expander with a variety of buttons, and
some other features.  This patch enables these portions of the UI
board because they don't directly conflict with existing features.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm/boot/dts/am3517-evm-ui.dtsi b/arch/arm/boot/dts/am3517-evm-ui.dtsi
new file mode 100644
index 000000000000..e841918c1c26
--- /dev/null
+++ b/arch/arm/boot/dts/am3517-evm-ui.dtsi
@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2018 Logic PD, Inc - http://www.logicpd.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <dt-bindings/input/input.h>
+
+/ {
+	codec1 {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "tlv320aic23-hifi";
+
+		simple-audio-card,widgets =
+			"Microphone", "Mic In",
+			"Line", "Line In",
+			"Line", "Line Out";
+
+		simple-audio-card,routing =
+			"Line Out", "LOUT",
+			"Line Out", "ROUT",
+			"LLINEIN", "Line In",
+			"RLINEIN", "Line In",
+			"MICIN", "Mic In";
+
+		simple-audio-card,format = "i2s";
+		simple-audio-card,bitclock-master = <&sound_master>;
+		simple-audio-card,frame-master = <&sound_master>;
+
+		simple-audio-card,cpu {
+			sound-dai = <&mcbsp1>;
+		};
+
+		sound_master: simple-audio-card,codec {
+			sound-dai = <&tlv320aic23_1>;
+			system-clock-frequency = <12000000>;
+		};
+	};
+
+	codec2 {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "tlv320aic23-hifi";
+
+		simple-audio-card,widgets =
+			"Microphone", "Mic In",
+			"Line", "Line In",
+			"Line", "Line Out";
+
+		simple-audio-card,routing =
+			"Line Out", "LOUT",
+			"Line Out", "ROUT",
+			"LLINEIN", "Line In",
+			"RLINEIN", "Line In",
+			"MICIN", "Mic In";
+
+		simple-audio-card,format = "i2s";
+		simple-audio-card,bitclock-master = <&sound_master2>;
+		simple-audio-card,frame-master = <&sound_master2>;
+
+		simple-audio-card,cpu {
+			sound-dai = <&mcbsp2>;
+		};
+
+		sound_master2: simple-audio-card,codec {
+			sound-dai = <&tlv320aic23_2>;
+			system-clock-frequency = <12000000>;
+		};
+	};
+
+	expander-keys {
+		compatible = "gpio-keys-polled";
+		poll-interval = <100>;
+
+		record {
+			label = "Record";
+			/* linux,code = <BTN_0>; */
+			gpios = <&tca6416_2 15 GPIO_ACTIVE_LOW>;
+		};
+
+		play {
+			label = "Play";
+			linux,code = <KEY_PLAY>;
+			gpios = <&tca6416_2 14 GPIO_ACTIVE_LOW>;
+		};
+
+		Stop {
+			label = "Stop";
+			linux,code = <KEY_STOP>;
+			gpios = <&tca6416_2 13 GPIO_ACTIVE_LOW>;
+		};
+
+		fwd {
+			label = "FWD";
+			linux,code = <KEY_FASTFORWARD>;
+			gpios = <&tca6416_2 12 GPIO_ACTIVE_LOW>;
+		};
+
+		rwd {
+			label = "RWD";
+			linux,code = <KEY_REWIND>;
+			gpios = <&tca6416_2 11 GPIO_ACTIVE_LOW>;
+		};
+
+		shift {
+			label = "Shift";
+			linux,code = <KEY_LEFTSHIFT>;
+			gpios = <&tca6416_2 10 GPIO_ACTIVE_LOW>;
+		};
+
+		Mode {
+			label = "Mode";
+			linux,code = <BTN_MODE>;
+			gpios = <&tca6416_2 9 GPIO_ACTIVE_LOW>;
+		};
+
+		Menu {
+			label = "Menu";
+			linux,code = <KEY_MENU>;
+			gpios = <&tca6416_2 8 GPIO_ACTIVE_LOW>;
+		};
+
+		Up {
+			label = "Up";
+			linux,code = <KEY_UP>;
+			gpios = <&tca6416_2 7 GPIO_ACTIVE_LOW>;
+		};
+
+		Down {
+			label = "Down";
+			linux,code = <KEY_DOWN>;
+			gpios = <&tca6416_2 6 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&i2c2 {
+	/* Audio codecs */
+	tlv320aic23_1: codec@1a {
+		compatible = "ti,tlv320aic23";
+		reg = <0x1a>;
+		#sound-dai-cells= <0>;
+		status = "okay";
+	};
+
+	tlv320aic23_2: codec@1b {
+		compatible = "ti,tlv320aic23";
+		reg = <0x1b>;
+		#sound-dai-cells= <0>;
+		status = "okay";
+	};
+};
+
+&i2c3 {
+	/* Audio codecs */
+	tlv320aic23_3: codec@1a {
+		compatible = "ti,tlv320aic23";
+		reg = <0x1a>;
+		#sound-dai-cells= <0>;
+		status = "okay";
+	};
+
+	/* GPIO Expanders */
+	tca6416_2: gpio@20 {
+		compatible = "ti,tca6416";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		vcc-supply = <&vdd_io_reg>;
+	};
+
+	tca6416_3: gpio@21 {
+		compatible = "ti,tca6416";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		vcc-supply = <&vdd_io_reg>;
+	};
+
+	/* TVP5146 Analog Video decoder input */
+	tvp5146@5c {
+		compatible = "ti,tvp5146m2";
+		reg = <0x5c>;
+	};
+};
+
+&mcbsp1 {
+	status = "ok";
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcbsp1_pins>;
+};
+
+&mcbsp2 {
+	status = "ok";
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcbsp2_pins>;
+};
+
+&omap3_pmx_core {
+	mcbsp1_pins: pinmux_mcbsp1_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x2190, PIN_OUTPUT | MUX_MODE0)	/* mcbsp1_dx.mcbsp1_dx */
+			OMAP3_CORE1_IOPAD(0x2192, PIN_INPUT | MUX_MODE0)	/* mcbsp1_dx.mcbsp1_dr */
+			OMAP3_CORE1_IOPAD(0x2196, PIN_INPUT | MUX_MODE0)	/* mcbsp_clks.mcbsp1_fsx */
+			OMAP3_CORE1_IOPAD(0x2198, PIN_INPUT | MUX_MODE0)	/* mcbsp1_clkx.mcbsp1_clkx */
+		>;
+	};
+
+	mcbsp2_pins: pinmux_mcbsp2_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x213c, PIN_INPUT | MUX_MODE0)	/* mcbsp2_fsx.mcbsp2_fsx */
+			OMAP3_CORE1_IOPAD(0x213e, PIN_INPUT | MUX_MODE0)	/* mcbsp2_clkx.mcbsp2_clkx */
+			OMAP3_CORE1_IOPAD(0x2140, PIN_INPUT | MUX_MODE0)	/* mcbsp2_dr.mcbsp2.dr */
+			OMAP3_CORE1_IOPAD(0x2142, PIN_OUTPUT | MUX_MODE0)	/* mcbsp2_dx.mcbsp2_dx */
+		>;
+	};
+};
diff --git a/arch/arm/boot/dts/am3517-evm.dts b/arch/arm/boot/dts/am3517-evm.dts
index 1d158cfda15f..d4d33cd7adad 100644
--- a/arch/arm/boot/dts/am3517-evm.dts
+++ b/arch/arm/boot/dts/am3517-evm.dts
@@ -9,6 +9,7 @@
 
 #include "am3517.dtsi"
 #include "am3517-som.dtsi"
+#include "am3517-evm-ui.dtsi"
 #include <dt-bindings/input/input.h>
 
 / {
-- 
2.17.1