ARM: dts: dra72-evm: Audio support

The board uses tlv320aic3106 codec connected to McASP3. The master clock
for the codec and McASP3 is coming from ATL2.
McASP3 is the master on the I2S bus.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 114 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index 33be5c64bda3..249000d50090 100644
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -9,6 +9,7 @@
 
 #include "dra72x.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clk/ti-dra7-atl.h>
 
 / {
 	model = "TI DRA722";
@@ -102,6 +103,40 @@
 			};
 		};
 	};
+
+	sound0: sound@0 {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "DRA7xx-EVM";
+		simple-audio-card,widgets =
+			"Headphone", "Headphone Jack",
+			"Line", "Line Out",
+			"Microphone", "Mic Jack",
+			"Line", "Line In";
+		simple-audio-card,routing =
+			"Headphone Jack",       "HPLOUT",
+			"Headphone Jack",       "HPROUT",
+			"Line Out",		"LLOUT",
+			"Line Out",		"RLOUT",
+			"MIC3L",		"Mic Jack",
+			"MIC3R",		"Mic Jack",
+			"Mic Jack",		"Mic Bias",
+			"LINE1L",               "Line In",
+			"LINE1R",               "Line In";
+		simple-audio-card,format = "dsp_b";
+		simple-audio-card,bitclock-master = <&sound0_master>;
+		simple-audio-card,frame-master = <&sound0_master>;
+		simple-audio-card,bitclock-inversion;
+
+		sound0_master: simple-audio-card,cpu {
+			sound-dai = <&mcasp3>;
+			system-clock-frequency = <5644800>;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&tlv320aic3106>;
+			clocks = <&atl_clkin2_ck>;
+		};
+	};
 };
 
 &dra7_pmx_core {
@@ -236,6 +271,31 @@
 			0x3b8 (PIN_INPUT_PULLDOWN | MUX_MODE14) /* gpio7_12 HPD */
 		>;
 	};
+
+	atl_pins: pinmux_atl_pins {
+		pinctrl-single,pins = <
+			0x298 (PIN_OUTPUT | MUX_MODE5)	/* xref_clk1.atl_clk1 */
+			0x29c (PIN_OUTPUT | MUX_MODE5)	/* xref_clk2.atl_clk2 */
+		>;
+	};
+
+	mcasp3_pins: pinmux_mcasp3_pins {
+		pinctrl-single,pins = <
+			0x324 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mcasp3_aclkx */
+			0x328 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mcasp3_fsx */
+			0x32c (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mcasp3_axr0 */
+			0x330 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* mcasp3_axr1 */
+		>;
+	};
+
+	mcasp3_sleep_pins: pinmux_mcasp3_sleep_pins {
+		pinctrl-single,pins = <
+			0x324 (PIN_INPUT_PULLDOWN | MUX_MODE15)
+			0x328 (PIN_INPUT_PULLDOWN | MUX_MODE15)
+			0x32c (PIN_INPUT_PULLDOWN | MUX_MODE15)
+			0x330 (PIN_INPUT_PULLDOWN | MUX_MODE15)
+		>;
+	};
 };
 
 &i2c1 {
@@ -376,6 +436,21 @@
 			output-low;
 		};
 	};
+
+	tlv320aic3106: tlv320aic3106@19 {
+		#sound-dai-cells = <0>;
+		compatible = "ti,tlv320aic3106";
+		reg = <0x19>;
+		adc-settle-ms = <40>;
+		ai3x-micbias-vg = <1>;		/* 2.0V */
+		status = "okay";
+
+		/* Regulators */
+		AVDD-supply = <&evm_3v3>;
+		IOVDD-supply = <&evm_3v3>;
+		DRVDD-supply = <&evm_3v3>;
+		DVDD-supply = <&aic_dvdd>;
+	};
 };
 
 &i2c5 {
@@ -719,3 +794,42 @@
 		};
 	};
 };
+
+&atl {
+	pinctrl-names = "default";
+	pinctrl-0 = <&atl_pins>;
+
+	assigned-clocks = <&abe_dpll_sys_clk_mux>,
+			  <&atl_gfclk_mux>,
+			  <&dpll_abe_ck>,
+			  <&dpll_abe_m2x2_ck>,
+			  <&atl_clkin2_ck>;
+	assigned-clock-parents = <&sys_clkin2>, <&dpll_abe_m2_ck>;
+	assigned-clock-rates = <0>, <0>, <180633600>, <361267200>, <5644800>;
+
+	status = "okay";
+
+	atl2 {
+		bws = <DRA7_ATL_WS_MCASP2_FSX>;
+		aws = <DRA7_ATL_WS_MCASP3_FSX>;
+	};
+};
+
+&mcasp3 {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&mcasp3_pins>;
+	pinctrl-1 = <&mcasp3_sleep_pins>;
+
+	assigned-clocks = <&mcasp3_ahclkx_mux>;
+	assigned-clock-parents = <&atl_clkin2_ck>;
+
+	status = "okay";
+
+	op-mode = <0>;          /* MCASP_IIS_MODE */
+	tdm-slots = <2>;
+	/* 4 serializer */
+	serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
+		1 2 0 0
+	>;
+};