arm: p4note: add wm1811 audio (WIP)

Signed-off-by: Martin Jücker <martin.juecker@gmail.com>

arch/arm/boot/dts/exynos4412-p4note.dtsi

@@ -116,6 +116,25 @@
 		regulator-boot-on;
 	};
 
+	mic_bias_reg: voltage-regulator-5 {
+		compatible = "regulator-fixed";
+		regulator-name = "MICBIAS_LDO_2.8V";
+		pinctrl-names = "default";
+		pinctrl-0 = <&main_mic_bias>;
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		gpios = <&gpm0 0 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	wm1811_spkvdd: voltage-regulator-6 {
+		compatible = "regulator-fixed";
+		regulator-name = "VBATT";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+	};
+
 	wlan_pwrseq: sdhci3-pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		reset-gpios = <&gpm3 5 GPIO_ACTIVE_LOW>;
@@ -241,6 +260,50 @@
 		brightness-levels = <0 48 56 64 72 80 96 112 128 144 160 176 192 255>;
 		default-brightness-level = <12>;
 	};
+
+	sound: sound {
+		compatible = "samsung,p4note-audio";
+		model = "p4note";
+		mic-bias-supply = <&mic_bias_reg>;
+		lineout-sel-gpios = <&gpj1 2 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&lineout_en>;
+		i2s-controller = <&i2s0>;
+		audio-codec = <&wm1811>;
+		samsung,audio-routing =
+			"HP", "HPOUT1L",
+			"HP", "HPOUT1R",
+
+			"SPK", "SPKOUTLN",
+			"SPK", "SPKOUTLP",
+			"SPK", "SPKOUTRN",
+			"SPK", "SPKOUTRP",
+
+			"RCV", "HPOUT2N",
+			"RCV", "HPOUT2P",
+
+			"LINE", "LINEOUT2N",
+			"LINE", "LINEOUT2P",
+
+			"HDMI", "LINEOUT1N",
+			"HDMI", "LINEOUT1P",
+
+			/* "IN1LP", "MICBIAS1",
+			"IN1LN", "MICBIAS1",
+			"MICBIAS1", "Main Mic", */
+
+			"IN1RP", "Sub Mic",
+			"IN1RN", "Sub Mic",
+
+			/* "IN2LP:VXRN", "MICBIAS2",
+			"MICBIAS2", "Headset Mic", */
+
+			"IN2RN", "FM In",
+			"IN2RP:VXRP", "FM In";
+
+			/* "IN2RN", "Third Mic",
+			"IN2RP:VXRP", "Third Mic"; */
+	};
 };
 
 &adc {
@@ -367,6 +430,41 @@
 	};
 };
 
+&i2c_4 {
+	samsung,i2c-sda-delay = <100>;
+	samsung,i2c-slave-addr = <0x10>;
+	samsung,i2c-max-bus-freq = <400000>;
+	pinctrl-0 = <&i2c4_bus>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	wm1811: audio-codec@1a {
+		compatible = "wlf,wm1811";
+		reg = <0x1a>;
+		clocks = <&pmu_system_controller 0>;
+		clock-names = "MCLK1";
+		pinctrl-0 = <&wm1811_ldo>;
+		pinctrl-names = "default";
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		AVDD2-supply = <&wm1811_spkvdd>;
+		DCVDD-supply = <&ldo3_reg>;
+		CPVDD-supply = <&wm1811_spkvdd>;
+		DBVDD1-supply = <&ldo3_reg>;
+		DBVDD2-supply = <&wm1811_spkvdd>;
+		DBVDD3-supply = <&wm1811_spkvdd>;
+		SPKVDD1-supply = <&wm1811_spkvdd>;
+		SPKVDD2-supply = <&wm1811_spkvdd>;
+
+		wlf,micbias-cfg = <0x2F 0x27>;
+		wlf,gpio-cfg = <0x3 0x0 0x0 0x0 0x0 0x0 0x0 0x8000 0x0 0x0 0x0>;
+		wlf,lineout1-feedback;
+		wlf,ldo1ena-gpios = <&gpm4 4 GPIO_ACTIVE_HIGH>;
+		wlf,ldoena-always-driven;
+	};
+};
+
 &i2c_7 {
 	samsung,i2c-sda-delay = <100>;
 	samsung,i2c-slave-addr = <0x10>;
@@ -676,6 +774,12 @@
 	};
 };
 
+&i2s0 {
+	pinctrl-0 = <&i2s0_bus>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &mshc_0 {
 	broken-cd;
 	non-removable;
@@ -714,6 +818,12 @@
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
 	};
 
+	lineout_en: lineout-en {
+		samsung,pins = "gpj1-2";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
+
 	sleep0: sleep-states {
 		PIN_SLP(gpa0-0, INPUT, NONE);
 		PIN_SLP(gpa0-1, OUT0, NONE);
@@ -836,6 +946,12 @@
 		/* 0 = CP, 1 = AP (serial output) */
 	};
 
+	main_mic_bias: main-mic-bias {
+		samsung,pins = "gpm0-0";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
+
 	led_bl_reset: led-bl-reset {
 		samsung,pins = "gpm0-1";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
@@ -866,6 +982,12 @@
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
 	};
 
+	wm1811_ldo: wm1811-ldo {
+		samsung,pins = "gpm4-4";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
+
 	tsp_reg_gpio_1: tsp-reg-gpio-1 {
 		samsung,pins = "gpm4-5";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;

arch/arm/configs/exynos_defconfig

@@ -245,6 +245,7 @@ CONFIG_SND=y
 CONFIG_SND_SOC=y
 CONFIG_SND_SOC_SAMSUNG=y
 CONFIG_SND_SOC_SAMSUNG_SMDK_WM8994=y
+CONFIG_SND_SOC_SAMSUNG_P4NOTE_WM1811=y
 CONFIG_SND_SOC_SMDK_WM8994_PCM=y
 CONFIG_SND_SOC_SNOW=y
 CONFIG_SND_SOC_ODROID=y

sound/soc/samsung/Kconfig

@@ -233,4 +233,12 @@ config SND_SOC_SAMSUNG_MIDAS_WM1811
 	help
 	  Say Y if you want to add support for SoC audio on the Midas boards.
 
+config SND_SOC_SAMSUNG_P4NOTE_WM1811
+	tristate "SoC I2S Audio support for p4note family boards"
+	depends on SND_SOC_SAMSUNG
+	select SND_SAMSUNG_I2S
+	select SND_SOC_WM8994
+	help
+	  Say Y if you want to add support for SoC audio on the p4note family boards.
+
 endif #SND_SOC_SAMSUNG

sound/soc/samsung/Makefile

@@ -43,6 +43,7 @@ snd-soc-arndale-objs := arndale.o
 snd-soc-tm2-wm5110-objs := tm2_wm5110.o
 snd-soc-aries-wm8994-objs := aries_wm8994.o
 snd-soc-midas-wm1811-objs := midas_wm1811.o
+snd-soc-p4note-wm1811-objs := p4note_wm1811.o
 
 obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o
 obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
@@ -68,3 +69,4 @@ obj-$(CONFIG_SND_SOC_ARNDALE) += snd-soc-arndale.o
 obj-$(CONFIG_SND_SOC_SAMSUNG_TM2_WM5110) += snd-soc-tm2-wm5110.o
 obj-$(CONFIG_SND_SOC_SAMSUNG_ARIES_WM8994) += snd-soc-aries-wm8994.o
 obj-$(CONFIG_SND_SOC_SAMSUNG_MIDAS_WM1811) += snd-soc-midas-wm1811.o
+obj-$(CONFIG_SND_SOC_SAMSUNG_P4NOTE_WM1811) += snd-soc-p4note-wm1811.o