arm64: dts: db820c: Add sound card support

This patch adds support both digital and analog audio on DB820c.
This board has HDMI port and 3.5mm audio jack to support both digital
and analog audio respectively.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>

arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi

@@ -36,6 +36,14 @@ pinconf {
 		};
 	};
 
+	audio_mclk: clk_div1 {
+		pinconf {
+			pins = "gpio15";
+			function = "func1";
+			power-source = <PM8994_GPIO_S4>; // 1.8V
+		};
+	};
+
 	volume_up_gpio: pm8996_gpio2 {
 		pinconf {
 			pins = "gpio2";

arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi

@@ -18,6 +18,8 @@
 #include "apq8096-db820c-pmic-pins.dtsi"
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/sound/qcom,q6afe.h>
+#include <dt-bindings/sound/qcom,q6asm.h>
 
 /*
  * GPIO name legend: proper name = the GPIO line is used as GPIO
@@ -63,6 +65,7 @@ chosen {
 	};
 
 	clocks {
+		compatible = "simple-bus";
 		divclk4: divclk4 {
 			compatible = "fixed-clock";
 			#clock-cells = <0>;
@@ -72,6 +75,15 @@ divclk4: divclk4 {
 			pinctrl-names = "default";
 			pinctrl-0 = <&divclk4_pin_a>;
 		};
+
+		div1_mclk: divclk1 {
+			compatible = "gpio-gate-clock";
+			pinctrl-0 = <&audio_mclk>;
+			pinctrl-names = "default";
+			clocks = <&rpmcc RPM_SMD_DIV_CLK1>;
+			#clock-cells = <0>;
+			enable-gpios = <&pm8994_gpios 15 0>;
+		};
 	};
 
 	soc {
@@ -453,6 +465,16 @@ pcie@610000 {
 			};
 		};
 
+		slim_msm: slim@91c0000 {
+			ngd@1 {
+				wcd9335: codec@1{
+					clock-names = "mclk", "slimbus";
+					clocks = <&div1_mclk>,
+						 <&rpmcc RPM_SMD_BB_CLK1>;
+				};
+			};
+		};
+
 		mdss@900000 {
 			status = "okay";
 
@@ -666,3 +688,75 @@ resin {
 		};
 	};
 };
+
+&sound {
+	compatible = "qcom,apq8096-sndcard";
+	model = "DB820c";
+	audio-routing =	"RX_BIAS", "MCLK";
+
+	mm1-dai-link {
+		link-name = "MultiMedia1";
+		cpu {
+			sound-dai = <&q6asmdai  MSM_FRONTEND_DAI_MULTIMEDIA1>;
+		};
+	};
+
+	mm2-dai-link {
+		link-name = "MultiMedia2";
+		cpu {
+			sound-dai = <&q6asmdai  MSM_FRONTEND_DAI_MULTIMEDIA2>;
+		};
+	};
+
+	mm3-dai-link {
+		link-name = "MultiMedia3";
+		cpu {
+			sound-dai = <&q6asmdai  MSM_FRONTEND_DAI_MULTIMEDIA3>;
+		};
+	};
+
+	hdmi-dai-link {
+		link-name = "HDMI";
+		cpu {
+			sound-dai = <&q6afedai HDMI_RX>;
+		};
+
+		platform {
+			sound-dai = <&q6routing>;
+		};
+
+		codec {
+			sound-dai = <&hdmi 0>;
+		};
+	};
+
+	slim-dai-link {
+		link-name = "SLIM Playback";
+		cpu {
+			sound-dai = <&q6afedai SLIMBUS_6_RX>;
+		};
+
+		platform {
+			sound-dai = <&q6routing>;
+	};
+
+		codec {
+			sound-dai = <&wcd9335 6>;
+		};
+	};
+
+	slimcap-dai-link {
+		link-name = "SLIM Capture";
+		cpu {
+			sound-dai = <&q6afedai SLIMBUS_0_TX>;
+		};
+
+		platform {
+			sound-dai = <&q6routing>;
+		};
+
+		codec {
+			sound-dai = <&wcd9335 1>;
+		};
+	};
+};

arch/arm64/boot/dts/qcom/msm8996-pins.dtsi

@@ -13,6 +13,49 @@
 
 &msmgpio {
 
+	wcd9xxx_intr {
+		wcd_intr_default: wcd_intr_default{
+			mux {
+				pins = "gpio54";
+				function = "gpio";
+			};
+
+			config {
+				pins = "gpio54";
+				drive-strength = <2>; /* 2 mA */
+				bias-pull-down; /* pull down */
+				input-enable;
+			};
+		};
+	};
+
+	cdc_reset_ctrl {
+		cdc_reset_sleep: cdc_reset_sleep {
+			mux {
+				pins = "gpio64";
+				function = "gpio";
+			};
+			config {
+				pins = "gpio64";
+				drive-strength = <16>;
+				bias-disable;
+				output-low;
+			};
+		};
+		cdc_reset_active:cdc_reset_active {
+			mux {
+				pins = "gpio64";
+				function = "gpio";
+			};
+			config {
+				pins = "gpio64";
+				drive-strength = <16>;
+				bias-pull-down;
+				output-high;
+			};
+		};
+	};
+
 	blsp1_spi0_default: blsp1_spi0_default {
 		pinmux {
 			function = "blsp_spi1";

arch/arm64/boot/dts/qcom/msm8996.dtsi

@@ -14,6 +14,7 @@
 #include <dt-bindings/clock/qcom,gcc-msm8996.h>
 #include <dt-bindings/clock/qcom,mmcc-msm8996.h>
 #include <dt-bindings/clock/qcom,rpmcc.h>
+#include <dt-bindings/soc/qcom,apr.h>
 
 / {
 	interrupt-parent = <&intc>;
@@ -1336,6 +1337,33 @@ mdp_smmu: arm,smmu@d00000 {
 			status = "disabled";
 		};
 
+		lpass_q6_smmu: arm,smmu-lpass_q6@1600000 {
+			compatible = "qcom,msm8996-smmu-v2", "qcom,smmu-v2";
+			reg = <0x1600000 0x20000>;
+			#iommu-cells = <1>;
+			power-domains = <&gcc HLOS1_VOTE_LPASS_CORE_GDSC>;
+
+			#global-interrupts = <1>;
+			interrupts = <GIC_SPI 404 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 393 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 394 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 395 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 396 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 397 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 398 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 399 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 400 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 401 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 402 IRQ_TYPE_LEVEL_HIGH>,
+		                <GIC_SPI 403 IRQ_TYPE_LEVEL_HIGH>;
+
+			clocks = <&gcc GCC_HLOS1_VOTE_LPASS_CORE_SMMU_CLK>,
+				 <&gcc GCC_HLOS1_VOTE_LPASS_ADSP_SMMU_CLK>;
+			clock-names = "iface", "bus";
+			status = "disabled";
+		};
+
 		agnoc@0 {
 			power-domains = <&gcc AGGRE0_NOC_GDSC>;
 			compatible = "simple-pm-bus";
@@ -1502,6 +1530,66 @@ pcie2: pcie@610000 {
 			};
 		};
 
+		slimbam:dma@9184000
+		{
+			compatible = "qcom,bam-v1.7.0";
+			qcom,controlled-remotely;
+			reg = <0x9184000 0x32000>;
+			num-channels  = <31>;
+			interrupts = <0 164 IRQ_TYPE_LEVEL_HIGH>;
+			#dma-cells = <1>;
+			qcom,ee = <1>;
+			qcom,num-ees = <2>;
+		};
+
+		slim_msm: slim@91c0000 {
+			compatible = "qcom,slim-ngd-v1.5.0";
+			reg = <0x91c0000 0x2C000>;
+			reg-names = "ctrl";
+			interrupts = <0 163 IRQ_TYPE_LEVEL_HIGH>;
+			dmas =	<&slimbam 3>, <&slimbam 4>,
+				<&slimbam 5>, <&slimbam 6>;
+			dma-names = "rx", "tx", "tx2", "rx2";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ngd@1 {
+				reg = <1>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				tasha_ifd: tas-ifd {
+					compatible = "slim217,1a0";
+					reg  = <0 0>;
+				};
+
+				wcd9335: codec@1{
+					pinctrl-0 = <&cdc_reset_active &wcd_intr_default>;
+					pinctrl-names = "default";
+
+					compatible = "slim217,1a0";
+					reg  = <1 0>;
+
+					interrupt-parent = <&msmgpio>;
+					interrupts = <54 IRQ_TYPE_LEVEL_HIGH>,
+						     <53 IRQ_TYPE_LEVEL_HIGH>;
+					interrupt-names  = "intr1", "intr2";
+					interrupt-controller;
+					#interrupt-cells = <1>;
+					reset-gpios = <&msmgpio 64 0>;
+
+					slim-ifc-dev  = <&tasha_ifd>;
+
+					vdd-buck-supply = <&pm8994_s4>;
+					vdd-buck-sido-supply = <&pm8994_s4>;
+					vdd-tx-supply = <&pm8994_s4>;
+					vdd-rx-supply = <&pm8994_s4>;
+					vdd-io-supply = <&pm8994_s4>;
+
+					#sound-dai-cells = <1>;
+				};
+			};
+		};
+
 		gpu@b00000 {
 			compatible = "qcom,adreno-530.2", "qcom,adreno";
 			#stream-id-cells = <16>;
@@ -1660,6 +1748,7 @@ hdmi: hdmi-tx@9a0000 {
 
 				phys = <&hdmi_phy>;
 				phy-names = "hdmi_phy";
+				#sound-dai-cells = <1>;
 
 				ports {
 					#address-cells = <1>;
@@ -1698,6 +1787,9 @@ hdmi_phy: hdmi-phy@9a0600 {
 		};
 	};
 
+	sound: sound {
+	};
+
 	adsp-pil {
 		compatible = "qcom,msm8996-adsp-pil";
 
@@ -1724,6 +1816,55 @@ smd-edge {
 			mboxes = <&apcs_glb 8>;
 			qcom,smd-edge = <1>;
 			qcom,remote-pid = <2>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			apr {
+				power-domains = <&gcc HLOS1_VOTE_LPASS_ADSP_GDSC>;
+				compatible = "qcom,apr-v2";
+				qcom,smd-channels = "apr_audio_svc";
+				reg = <APR_DOMAIN_ADSP>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				q6core {
+					reg = <APR_SVC_ADSP_CORE>;
+					compatible = "qcom,q6core";
+				};
+
+				q6afe: q6afe {
+					compatible = "qcom,q6afe";
+					reg = <APR_SVC_AFE>;
+					q6afedai: dais {
+						compatible = "qcom,q6afe-dais";
+						#address-cells = <1>;
+						#size-cells = <0>;
+						#sound-dai-cells = <1>;
+						hdmi@1 {
+							reg = <1>;
+						};
+					};
+				};
+
+				q6asm: q6asm {
+					compatible = "qcom,q6asm";
+					reg = <APR_SVC_ASM>;
+					q6asmdai: dais {
+						compatible = "qcom,q6asm-dais";
+						#sound-dai-cells = <1>;
+						iommus = <&lpass_q6_smmu 1>;
+					};
+				};
+
+				q6adm: q6adm {
+					compatible = "qcom,q6adm";
+					reg = <APR_SVC_ADM>;
+					q6routing: routing {
+						compatible = "qcom,q6adm-routing";
+						#sound-dai-cells = <0>;
+					};
+				};
+			};
+
 		};
 	};