wcd937x codec contains soundwire RX and TX slave devices
and can convert digital audio to analog audio and vice versa.
The codec node also requires description of reset pin/gpio.

Cc: Srinivas Kandagatla <srini@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
---
 arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 47 ++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
index a37860175d2733214f1b257e84d5cb4821033242..6bce63720cfffd8e0e619937fb1f365cbbbcb283 100644
--- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
+++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
@@ -5,6 +5,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/leds/common.h>
 #include <dt-bindings/sound/qcom,q6afe.h>
 #include <dt-bindings/sound/qcom,q6asm.h>
@@ -152,6 +153,25 @@ codec {
 		};
 	};
 
+	wcd937x: codec {
+		compatible = "qcom,wcd9370-codec";
+		pinctrl-0 = <&wcd_reset_n>;
+		pinctrl-names = "default";
+		reset-gpios = <&tlmm 82 GPIO_ACTIVE_LOW>;
+		vdd-buck-supply = <&vreg_l9a_1p8>;
+		vdd-rxtx-supply = <&vreg_l9a_1p8>;
+		vdd-px-supply = <&vreg_l9a_1p8>;
+		vdd-mic-bias-supply = <&vdc_vbat_som>;
+		qcom,micbias1-microvolt = <1800000>;
+		qcom,micbias2-microvolt = <1800000>;
+		qcom,micbias3-microvolt = <1800000>;
+		qcom,micbias4-microvolt = <1800000>;
+		qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000 500000 500000 500000 500000>;
+		qcom,rx-device = <&wcd937x_rx>;
+		qcom,tx-device = <&wcd937x_tx>;
+		#sound-dai-cells = <1>;
+	};
+
 	vreg_hdmi_out_1p2: regulator-hdmi-out-1p2 {
 		compatible = "regulator-fixed";
 		regulator-name = "VREG_HDMI_OUT_1P2";
@@ -605,6 +625,26 @@ &sleep_clk {
 	clock-frequency = <32764>;
 };
 
+&swr1 {
+	status = "okay";
+
+	wcd937x_rx: codec@0,4 {
+		compatible = "sdw20217010a00";
+		reg = <0 4>;
+		qcom,rx-port-mapping = <1 2 3 4 5>;
+	};
+};
+
+&swr0 {
+	status = "okay";
+
+	wcd937x_tx: codec@0,3 {
+		compatible = "sdw20217010a00";
+		reg = <0 3>;
+		qcom,tx-port-mapping = <1 1 2 3>;
+	};
+};
+
 &tlmm {
 	gpio-reserved-ranges = <43 2>, <49 1>, <54 1>,
 			       <56 3>, <61 2>, <64 1>,
@@ -689,6 +729,13 @@ sdc2_card_det_n: sd-card-det-n-state {
 		drive-strength = <2>;
 		bias-pull-up;
 	};
+
+	wcd_reset_n: wcd-reset-n-state {
+		pins = "gpio82";
+		function = "gpio";
+		drive-strength = <16>;
+		output-high;
+	};
 };
 
 &uart3 {

-- 
2.47.2