arm64: dts: qcom: msm8916-samsung-a2015: Add sound and modem

Enable sound and modem for the Samsung A2015 based devices (A3, A5, E5,
E7, Grand Max). The setup is similar to most MSM8916 devices, i.e.:

 - QDSP6 audio
 - Earpiece/headphones/microphones via digital/analog codec in
   MSM8916/PM8916
 - WWAN Internet via BAM-DMUX

except:

 - NXP TFA9895 codec for speaker on Quaternary MI2S
 - Samsung-specific audio jack detection (not supported yet)

[Lin: Add e2015 and grandmax]

Co-developed-by: "Lin, Meng-Bo" <[email protected]>
Signed-off-by: "Lin, Meng-Bo" <[email protected]>
Signed-off-by: Stephan Gerhold <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>

arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi

@@ -1,10 +1,13 @@
 // SPDX-License-Identifier: GPL-2.0-only
 
 #include "msm8916-pm8916.dtsi"
+#include "msm8916-modem-qdsp6.dtsi"
+
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
+#include <dt-bindings/sound/apq8016-lpass.h>
 
 / {
 	aliases {
@@ -196,6 +199,18 @@
 	};
 };
 
+&blsp_i2c1 {
+	status = "okay";
+
+	speaker_codec: audio-codec@34 {
+		compatible = "nxp,tfa9895";
+		reg = <0x34>;
+		vddd-supply = <&pm8916_l5>;
+		sound-name-prefix = "Speaker";
+		#sound-dai-cells = <0>;
+	};
+};
+
 &blsp_i2c2 {
 	status = "okay";
 
@@ -243,6 +258,25 @@
 	status = "okay";
 };
 
+/*
+ * For some reason the speaker amplifier is connected to the second SD line
+ * (MI2S_2_D1) instead of the first (MI2S_2_D0). This must be configured in the
+ * device tree, otherwise audio will seemingly play fine on the wrong SD line
+ * but the speaker stays silent.
+ *
+ * When routing audio via QDSP6 (the default) the &lpass node is reserved and
+ * the definitions from &q6afedai are used. When the modem is disabled audio can
+ * be alternatively routed directly to the LPASS hardware with reduced latency.
+ * The definitions for &lpass are here for completeness to simplify changing the
+ * setup with minor changes to the DT (either manually or with DT overlays).
+ */
+&lpass {
+	dai-link@3 {
+		reg = <MI2S_QUATERNARY>;
+		qcom,playback-sd-lines = <1>;
+	};
+};
+
 &mdss {
 	status = "okay";
 };
@@ -253,6 +287,10 @@
 	pinctrl-1 = <&mdss_sleep>;
 };
 
+&mpss_mem {
+	reg = <0x0 0x86800000 0x0 0x5400000>;
+};
+
 &pm8916_resin {
 	status = "okay";
 	linux,code = <KEY_VOLUMEDOWN>;
@@ -265,6 +303,13 @@
 	};
 };
 
+&q6afedai {
+	dai@22 {
+		reg = <QUATERNARY_MI2S_RX>;
+		qcom,sd-lines = <1>;
+	};
+};
+
 &sdhc_1 {
 	status = "okay";
 };
@@ -279,6 +324,32 @@
 	cd-gpios = <&tlmm 38 GPIO_ACTIVE_LOW>;
 };
 
+&sound {
+	model = "samsung-a2015";
+	audio-routing =
+		"AMIC1", "MIC BIAS External1",
+		"AMIC2", "MIC BIAS Internal2",
+		"AMIC3", "MIC BIAS External1";
+
+	pinctrl-0 = <&cdc_pdm_default &sec_mi2s_default>;
+	pinctrl-1 = <&cdc_pdm_sleep &sec_mi2s_sleep>;
+	pinctrl-names = "default", "sleep";
+
+	sound_link_backend2: backend2-dai-link {
+		link-name = "Quaternary MI2S";
+
+		cpu {
+			sound-dai = <&q6afedai QUATERNARY_MI2S_RX>;
+		};
+		platform {
+			sound-dai = <&q6routing>;
+		};
+		codec {
+			sound-dai = <&speaker_codec>;
+		};
+	};
+};
+
 &usb {
 	status = "okay";
 	extcon = <&muic>, <&muic>;

arch/arm64/boot/dts/qcom/msm8916-samsung-e2015-common.dtsi

@@ -65,6 +65,10 @@
 	};
 };
 
+&mpss_mem {
+	reg = <0x0 0x86800000 0x0 0x5a00000>;
+};
+
 &reg_motor_vdd {
 	regulator-min-microvolt = <3300000>;
 	regulator-max-microvolt = <3300000>;

arch/arm64/boot/dts/qcom/msm8916-samsung-grandmax.dts

@@ -49,6 +49,10 @@
 	status = "disabled";
 };
 
+&sound {
+	model = "samsung-gmax"; /* No secondary microphone */
+};
+
 &tlmm {
 	gpio_leds_default: gpio-led-default-state {
 		pins = "gpio60";