[PATCH v2 00/10] arm64: dts: meson: add more GX soundcards

[PATCH v2 00/10] arm64: dts: meson: add more GX soundcards

[Christian Hewitt]

This series adds basic support for LPCM audio over HDMI and S/PDIF
interfaces to GXBB/GXL/GXM devices without support. I'm sure audio
support can be extended in places (some devices have internal DACs
and headphone hardware) but this gets the basics working.

I have personally tested with the khadas-vim2, odroid-c2, and both
wetek devices as I have them, and there are positive forum reports
from users with vega-s95 and some no-name P20X box devices.

Changes from v1
- Drop nexbox-a1 and rbox-pro changes - the regulator changes are
needed to get the dts to compile, but I do not have schematics to
validate the changes or the hardware to test with.

Christian Hewitt (10):
  arm64: dts: meson: add audio playback to a95x
  arm64: dts: meson: add audio playback to khadas-vim2
  arm64: dts: meson: add audio playback to nanopi-k2
  arm64: dts: meson: add audio playback to odroid-c2
  arm64: dts: meson: add audio playback to p201
  arm64: dts: meson: add audio playback to p200
  arm64: dts: meson: add audio playback to p212-s905x dtsi
  arm64: dts: meson: add audio playback to vega-s95 dtsi
  arm64: dts: meson: add audio playback to wetek-hub
  arm64: dts: meson: add audio playback to wetek-play2

 .../boot/dts/amlogic/meson-gxbb-nanopi-k2.dts | 40 ++++++++++++
 .../dts/amlogic/meson-gxbb-nexbox-a95x.dts    | 40 ++++++++++++
 .../boot/dts/amlogic/meson-gxbb-odroidc2.dts  | 40 ++++++++++++
 .../boot/dts/amlogic/meson-gxbb-p200.dts      | 61 +++++++++++++++++++
 .../boot/dts/amlogic/meson-gxbb-p201.dts      | 40 ++++++++++++
 .../boot/dts/amlogic/meson-gxbb-vega-s95.dtsi | 61 +++++++++++++++++++
 .../boot/dts/amlogic/meson-gxbb-wetek-hub.dts | 40 ++++++++++++
 .../dts/amlogic/meson-gxbb-wetek-play2.dts    | 61 +++++++++++++++++++
 .../dts/amlogic/meson-gxl-s905x-p212.dtsi     | 40 ++++++++++++
 .../dts/amlogic/meson-gxm-khadas-vim2.dts     | 44 ++++++++++++-
 10 files changed, 464 insertions(+), 3 deletions(-)

-- 
2.17.1

[PATCH v2 01/10] arm64: dts: meson: add audio playback to a95x

[Christian Hewitt]

Add initial audio support limited to HDMI i2s.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../dts/amlogic/meson-gxbb-nexbox-a95x.dts    | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
index 67d901ed2fa3..b5b11cb9f393 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
@@ -10,6 +10,7 @@
 #include "meson-gxbb.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "nexbox,a95x", "amlogic,meson-gxbb";
@@ -139,6 +140,45 @@
 			};
 		};
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXBB-NEXBOX-A95X";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
 };
 
 &cvbs_vdac_port {
-- 
2.17.1

[PATCH v2 02/10] arm64: dts: meson: add audio playback to khadas-vim2

[Christian Hewitt]

Add initial audio support limited to HDMI i2s.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../dts/amlogic/meson-gxm-khadas-vim2.dts     | 44 +++++++++++++++++--
 1 file changed, 41 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts
index bff8ec2c1c70..d4734220443c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts
@@ -7,9 +7,9 @@
 
 /dts-v1/;
 
-#include <dt-bindings/input/input.h>
-
 #include "meson-gxm.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "khadas,vim2", "amlogic,s912", "amlogic,meson-gxm";
@@ -145,6 +145,45 @@
 		clock-frequency = <32768>;
 		pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXM-KHADAS-VIM2";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
 };
 
 &cec_AO {
@@ -154,7 +193,6 @@
 	hdmi-phandle = <&hdmi_tx>;
 };
 
-
 &cpu_cooling_maps {
 	map0 {
 		cooling-device = <&gpio_fan THERMAL_NO_LIMIT 1>;
-- 
2.17.1

[PATCH v2 03/10] arm64: dts: meson: add audio playback to nanopi-k2

[Christian Hewitt]

Add initial audio support limited to HDMI i2s.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../boot/dts/amlogic/meson-gxbb-nanopi-k2.dts | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
index 7be3e354093b..8e5df00b06a2 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
@@ -7,6 +7,7 @@
 
 #include "meson-gxbb.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "friendlyarm,nanopi-k2", "amlogic,meson-gxbb";
@@ -130,6 +131,45 @@
 			};
 		};
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXBB-NANOPI-K2";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
 };
 
 &cec_AO {
-- 
2.17.1

[PATCH v2 04/10] arm64: dts: meson: add audio playback to odroid-c2

[Christian Hewitt]

Add initial audio support limited to HDMI i2s.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../boot/dts/amlogic/meson-gxbb-odroidc2.dts  | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index 70fcfb7b0683..9d8c919c6e19 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -9,6 +9,7 @@
 
 #include "meson-gxbb.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "hardkernel,odroid-c2", "amlogic,meson-gxbb";
@@ -172,6 +173,45 @@
 			};
 		};
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXBB-ODROID-C2";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
 };
 
 &cec_AO {
-- 
2.17.1

[PATCH v2 05/10] arm64: dts: meson: add audio playback to p201

[Christian Hewitt]

Add initial audio support limited to HDMI i2s.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../boot/dts/amlogic/meson-gxbb-p201.dts      | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p201.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-p201.dts
index 150a82f3b2d7..2e2bccbcfd43 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p201.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p201.dts
@@ -8,10 +8,50 @@
 /dts-v1/;
 
 #include "meson-gxbb-p20x.dtsi"
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "amlogic,p201", "amlogic,meson-gxbb";
 	model = "Amlogic Meson GXBB P201 Development Board";
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXBB-P201";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
 };
 
 &ethmac {
-- 
2.17.1

[PATCH v2 06/10] arm64: dts: meson: add audio playback to p200

[Christian Hewitt]

Add initial support limited to HDMI i2s and SPDIF (LPCM).

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../boot/dts/amlogic/meson-gxbb-p200.dts      | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts
index 3c93d1898b40..a16dac72600d 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts
@@ -9,11 +9,19 @@
 
 #include "meson-gxbb-p20x.dtsi"
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "amlogic,p200", "amlogic,meson-gxbb";
 	model = "Amlogic Meson GXBB P200 Development Board";
 
+	spdif_dit: audio-codec-0 {
+		#sound-dai-cells = <0>;
+		compatible = "linux,spdif-dit";
+		status = "okay";
+		sound-name-prefix = "DIT";
+	};
+
 	avdd18_usb_adc: regulator-avdd18_usb_adc {
 		compatible = "regulator-fixed";
 		regulator-name = "AVDD18_USB_ADC";
@@ -57,6 +65,59 @@
 			press-threshold-microvolt = <0>; /* 0% */
 		};
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXBB-P200";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_FIFO>;
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-3 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_ENCODER>;
+
+			codec-0 {
+				sound-dai = <&spdif_dit>;
+			};
+		};
+
+		dai-link-4 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
+	pinctrl-0 = <&spdif_out_y_pins>;
+	pinctrl-names = "default";
 };
 
 &ethmac {
-- 
2.17.1

[PATCH v2 07/10] arm64: dts: meson: add audio playback to p212-s905x dtsi

[Christian Hewitt]

Add initial audio support limited to HDMI i2s.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../dts/amlogic/meson-gxl-s905x-p212.dtsi     | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
index 05cb2f5e5c36..40776d42bf8e 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
@@ -11,6 +11,7 @@
 /* Common DTSI for devices which are based on the P212 reference board. */
 
 #include "meson-gxl-s905x.dtsi"
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	aliases {
@@ -85,6 +86,45 @@
 		clocks = <&wifi32k>;
 		clock-names = "ext_clock";
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXL-S905X-P212";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
 };
 
 &ethmac {
-- 
2.17.1

[PATCH v2 08/10] arm64: dts: meson: add audio playback to vega-s95 dtsi

[Christian Hewitt]

Add initial support limited to HDMI i2s and SPDIF (LPCM).

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../boot/dts/amlogic/meson-gxbb-vega-s95.dtsi | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
index 222ee8069cfa..1300585a1ec7 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
@@ -4,6 +4,7 @@
  */
 
 #include "meson-gxbb.dtsi"
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "tronsmart,vega-s95", "amlogic,meson-gxbb";
@@ -17,6 +18,13 @@
 		stdout-path = "serial0:115200n8";
 	};
 
+	spdif_dit: audio-codec-0 {
+		#sound-dai-cells = <0>;
+		compatible = "linux,spdif-dit";
+		status = "okay";
+		sound-name-prefix = "DIT";
+	};
+
 	leds {
 		compatible = "gpio-leds";
 
@@ -97,6 +105,59 @@
 		clocks = <&wifi32k>;
 		clock-names = "ext_clock";
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXBB-VEGA-S95";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_FIFO>;
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-3 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_ENCODER>;
+
+			codec-0 {
+				sound-dai = <&spdif_dit>;
+			};
+		};
+
+		dai-link-4 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
+	pinctrl-0 = <&spdif_out_y_pins>;
+	pinctrl-names = "default";
 };
 
 &cec_AO {
-- 
2.17.1

[PATCH v2 09/10] arm64: dts: meson: add audio playback to wetek-hub

[Christian Hewitt]

Add initial audio support limited to HDMI i2s.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../boot/dts/amlogic/meson-gxbb-wetek-hub.dts | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts
index 83b985bb015e..0c1570153842 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-hub.dts
@@ -7,10 +7,50 @@
 /dts-v1/;
 
 #include "meson-gxbb-wetek.dtsi"
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "wetek,hub", "amlogic,meson-gxbb";
 	model = "WeTek Hub";
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXBB-WETEK-HUB";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
 };
 
 &ir {
-- 
2.17.1

[PATCH v2 10/10] arm64: dts: meson: add audio playback to wetek-play2

[Christian Hewitt]

Add initial support limited to HDMI i2s and SPDIF (LPCM).

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
---
 .../dts/amlogic/meson-gxbb-wetek-play2.dts    | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
index 2ab8a3d10079..f2562c7de67c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
@@ -8,11 +8,19 @@
 
 #include "meson-gxbb-wetek.dtsi"
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/sound/meson-aiu.h>
 
 / {
 	compatible = "wetek,play2", "amlogic,meson-gxbb";
 	model = "WeTek Play 2";
 
+	spdif_dit: audio-codec-0 {
+		#sound-dai-cells = <0>;
+		compatible = "linux,spdif-dit";
+		status = "okay";
+		sound-name-prefix = "DIT";
+	};
+
 	leds {
 		led-wifi {
 			label = "wetek-play:wifi-status";
@@ -39,6 +47,59 @@
 			gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_LOW>;
 		};
 	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "GXBB-WETEK-PLAY2";
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+		status = "okay";
+
+		dai-link-0 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+		};
+
+		dai-link-1 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_FIFO>;
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+			dai-format = "i2s";
+			mclk-fs = <256>;
+
+			codec-0 {
+				sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+			};
+		};
+
+		dai-link-3 {
+			sound-dai = <&aiu AIU_CPU CPU_SPDIF_ENCODER>;
+
+			codec-0 {
+				sound-dai = <&spdif_dit>;
+			};
+		};
+
+		dai-link-4 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+	};
+};
+
+&aiu {
+	status = "okay";
+	pinctrl-0 = <&spdif_out_y_pins>;
+	pinctrl-names = "default";
 };
 
 &i2c_A {
-- 
2.17.1

Re: [PATCH v2 00/10] arm64: dts: meson: add more GX soundcards

[Jerome Brunet]

On Fri 02 Oct 2020 at 16:31, Christian Hewitt <christianshewitt@gmail.com> wrote:

> This series adds basic support for LPCM audio over HDMI and S/PDIF
> interfaces to GXBB/GXL/GXM devices without support. I'm sure audio
> support can be extended in places (some devices have internal DACs
> and headphone hardware) but this gets the basics working.
>
> I have personally tested with the khadas-vim2, odroid-c2, and both
> wetek devices as I have them, and there are positive forum reports
> from users with vega-s95 and some no-name P20X box devices.

It is fine to add what you have tested but I'm not confortable adding
untested stuff which will later give the false idea that they are
supposed to work.

Amplifiers and codec may require different settings and ressources
(such as GPIO and regulators) to actually operate properly.

As far the p200 and p201, like the g12 u200, those are reference design
with various sound card possibilities which usually don't apply to end
products.

For example the p200 is missing both input and output codecs, the sound
amplifier and, as it stands, is likely to be muted.

>
> Changes from v1
> - Drop nexbox-a1 and rbox-pro changes - the regulator changes are
> needed to get the dts to compile, but I do not have schematics to
> validate the changes or the hardware to test with.
>
> Christian Hewitt (10):
>   arm64: dts: meson: add audio playback to a95x
>   arm64: dts: meson: add audio playback to khadas-vim2
>   arm64: dts: meson: add audio playback to nanopi-k2
>   arm64: dts: meson: add audio playback to odroid-c2
>   arm64: dts: meson: add audio playback to p201
>   arm64: dts: meson: add audio playback to p200
>   arm64: dts: meson: add audio playback to p212-s905x dtsi
>   arm64: dts: meson: add audio playback to vega-s95 dtsi
>   arm64: dts: meson: add audio playback to wetek-hub
>   arm64: dts: meson: add audio playback to wetek-play2
>
>  .../boot/dts/amlogic/meson-gxbb-nanopi-k2.dts | 40 ++++++++++++
>  .../dts/amlogic/meson-gxbb-nexbox-a95x.dts    | 40 ++++++++++++
>  .../boot/dts/amlogic/meson-gxbb-odroidc2.dts  | 40 ++++++++++++
>  .../boot/dts/amlogic/meson-gxbb-p200.dts      | 61 +++++++++++++++++++
>  .../boot/dts/amlogic/meson-gxbb-p201.dts      | 40 ++++++++++++
>  .../boot/dts/amlogic/meson-gxbb-vega-s95.dtsi | 61 +++++++++++++++++++
>  .../boot/dts/amlogic/meson-gxbb-wetek-hub.dts | 40 ++++++++++++
>  .../dts/amlogic/meson-gxbb-wetek-play2.dts    | 61 +++++++++++++++++++
>  .../dts/amlogic/meson-gxl-s905x-p212.dtsi     | 40 ++++++++++++
>  .../dts/amlogic/meson-gxm-khadas-vim2.dts     | 44 ++++++++++++-
>  10 files changed, 464 insertions(+), 3 deletions(-)