Add support for Xiaomi Mi TV Stick

This patch series aims to add initial support for the Xiaomi Mi TV
Stick.

Xiaomi Mi TV Stick is a small Amlogic-based Android TV stick released in 
2020, and known as `xiaomi-aquaman` internally (in the downstream kernel,
u-boot, ...)
Its specifications are as follows:
 * Amlogic S805Y SoC (believed to be mostly identical to S805X)
 * 8 GB eMMC
 * 1 GB of RAM
 * Wi-Fi + Bluetooth
 * Android TV 9, upgradable to Android TV 10
 * Google-certified

There are multiple variants:
 * 1. Green PCB, manufactured in 2020, known UART pinout (helpfully 
   labeled on the board)
 * 2. Blue PCB, not much documentation about it, presumably manufactured
   between 2021 and 2023
 * 3. Green PCB, manufactured in 2023/2024, known UART pinout, some layout
   changes compared to the 2020 variant

Among these variants, there are many boards using multiple different
Wi-Fi chips.  Supporting all of them is out of scope for this patch
series.  However, there has been some work identifying Wi-Fi/Bluetooth 
since v4.  Some variants use a Realtek module while others use an
Amlogic module.

As of the time of writing this has only been tested on the 3rd variant.
It is believed that software-wise all three work mostly the same (if we 
don't count Wi-Fi/BT), but testing on the other variants would still be
appreciated.  Sadly, booting Mainline linux is slightly more
challenging on some versions of the original firmware.

The devicetree is based on the Amlogic P241 DTS.

Changes since v4 [1]:
 * add Acked-by from krzk
 * Wi-Fi on sd_emmc_b

40 more lines

Add support for the Amlogic S805Y SoC and the Xiaomi Mi TV Stick (aka.
xiaomi-aquaman).  The S805Y is very similar to the S805X, with just a
few minor differences.

Signed-off-by: Ferass El Hafidi <redacted>
Acked-by: Krzysztof Kozlowski <redacted>
---
 Documentation/devicetree/bindings/arm/amlogic.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/amlogic.yaml b/Documentation/devicetree/bindings/arm/amlogic.yaml
index 0647851ae..3403362e0 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.yaml
+++ b/Documentation/devicetree/bindings/arm/amlogic.yaml

@@ -73,6 +73,13 @@ properties:
           - const: amlogic,s805x
           - const: amlogic,meson-gxl
 
+      - description: Boards with the Amlogic Meson GXL S805Y SoC
+        items:
+          - enum:
+              - xiaomi,aquaman
+          - const: amlogic,s805y
+          - const: amlogic,meson-gxl
+
       - description: Boards with the Amlogic Meson GXL S905W SoC
         items:
           - enum:

-- 
2.47.1

Xiaomi Mi TV Stick is a small Amlogic-based Android TV stick released in
2020.  It is known as `xiaomi-aquaman` internally.  Specifications:
 * Amlogic S805Y SoC
 * Android TV 9, upgradable to Android TV 10
 * 8 GB eMMC
 * 1 GB of RAM
 * Wi-Fi + Bluetooth

The devicetree is based on p241's DT, with some changes to better match
the Mi TV Stick:
 * there is no Ethernet port, no IR, no CVBS connector on the stick
 * a white LED is present
 * adjust memory to have 1 GB of RAM available

Signed-off-by: Ferass El Hafidi <redacted>
---
 arch/arm64/boot/dts/amlogic/Makefile          |   1 +
 .../meson-gxl-s805y-xiaomi-aquaman.dts        | 292 ++++++++++++++++++
 .../boot/dts/amlogic/meson-gxl-s805y.dtsi     |  10 +
 3 files changed, 303 insertions(+)
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dts
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s805y.dtsi

diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index 2fbda8419..0921707f1 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile

@@ -49,6 +49,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-wetek-hub.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-wetek-play2.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s805x-libretech-ac.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s805x-p241.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s805y-xiaomi-aquaman.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-libretech-pc.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-mecool-kii-pro.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-p230.dtb

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dts
new file mode 100644
index 000000000..42c692017
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dts

@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2025 Ferass El Hafidi <funderscore@postmarketos.org>
+ * Heavily based on meson-gxl-s805x-p241.dtb:
+ *  - Copyright (c) 2018 BayLibre, SAS.
+ *    Author: Neil Armstrong <narmstrong@baylibre.com>
+ *    Author: Jerome Brunet <jbrunet@baylibre.com>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/sound/meson-aiu.h>
+
+#include "meson-gxl-s805y.dtsi"
+
+/ {
+	compatible = "xiaomi,aquaman", "amlogic,s805y", "amlogic,meson-gxl";
+	model = "Xiaomi Mi TV Stick (aquaman)";
+
+	aliases {
+		serial0 = &uart_AO;
+		serial1 = &uart_A;
+	};
+
+	au2: analog-amplifier {
+		compatible = "simple-audio-amplifier";
+		sound-name-prefix = "AU2";
+		VCC-supply = <&vcc_5v>;
+		enable-gpios = <&gpio GPIOH_5 GPIO_ACTIVE_HIGH>;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	emmc_pwrseq: emmc-pwrseq {
+		compatible = "mmc-pwrseq-emmc";
+		reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
+	};
+
+	hdmi-connector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_tx_tmds_out>;
+			};
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-white {
+			color = <LED_COLOR_ID_WHITE>;
+			function = LED_FUNCTION_POWER;
+			gpios = <&gpio GPIODV_24 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+			panic-indicator;
+		};
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x40000000>;
+	};
+
+	vddio_boot: regulator-vddio-boot {
+		compatible = "regulator-fixed";
+		regulator-name = "VDDIO_BOOT";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	vddao_3v3: regulator-vddao-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "VDDAO_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	vddio_ao18: regulator-vddio-ao18 {
+		compatible = "regulator-fixed";
+		regulator-name = "VDDIO_AO18";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	vcc_3v3: regulator-vcc-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC_3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	vcc_5v: regulator-vcc-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC_5V";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	emmc_pwrseq: emmc-pwrseq {
+		compatible = "mmc-pwrseq-emmc";
+		reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
+	};
+
+	wifi32k: wifi32k {
+		compatible = "pwm-clock";
+		#clock-cells = <0>;
+		clock-frequency = <32768>;
+		pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
+	};
+
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
+		clocks = <&wifi32k>;
+		clock-names = "ext_clock";
+	};
+
+	sound {
+		compatible = "amlogic,gx-sound-card";
+		model = "XIAOMI-AQUAMAN";
+		audio-aux-devs = <&au2>;
+		audio-widgets = "Line", "Lineout";
+		audio-routing = "AU2 INL", "ACODEC LOLN",
+				"AU2 INR", "ACODEC LORN",
+				"Lineout", "AU2 OUTL",
+				"Lineout", "AU2 OUTR";
+		clocks = <&clkc CLKID_MPLL0>,
+			 <&clkc CLKID_MPLL1>,
+			 <&clkc CLKID_MPLL2>;
+
+		assigned-clocks = <&clkc CLKID_MPLL0>,
+				  <&clkc CLKID_MPLL1>,
+				  <&clkc CLKID_MPLL2>;
+		assigned-clock-parents = <0>, <0>, <0>;
+		assigned-clock-rates = <294912000>,
+				       <270950400>,
+				       <393216000>;
+
+		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>;
+			};
+
+			codec-1 {
+				sound-dai = <&aiu AIU_ACODEC CTRL_I2S>;
+			};
+		};
+
+		dai-link-2 {
+			sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&hdmi_tx>;
+			};
+		};
+
+		dai-link-3 {
+			sound-dai = <&aiu AIU_ACODEC CTRL_OUT>;
+
+			codec-0 {
+				sound-dai = <&acodec>;
+			};
+		};
+	};
+};
+
+&acodec {
+	AVDD-supply = <&vddio_ao18>;
+	status = "okay";
+};
+
+&aiu {
+	status = "okay";
+};
+
+&cec_AO {
+	status = "okay";
+	pinctrl-0 = <&ao_cec_pins>;
+	pinctrl-names = "default";
+	hdmi-phandle = <&hdmi_tx>;
+};
+
+&hdmi_tx {
+	status = "okay";
+	pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+	pinctrl-names = "default";
+	hdmi-supply = <&vcc_5v>;
+};
+
+&hdmi_tx_tmds_port {
+	hdmi_tx_tmds_out: endpoint {
+		remote-endpoint = <&hdmi_connector_in>;
+	};
+};
+
+&saradc {
+	status = "okay";
+	vref-supply = <&vddio_ao18>;
+};
+
+/* Wireless SDIO Module (Amlogic W155S1 / Realtek RTL8821CS) */
+&sd_emmc_b {
+	status = "okay";
+	pinctrl-0 = <&sdio_pins>;
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	bus-width = <4>;
+	cap-sd-highspeed;
+	max-frequency = <50000000>;
+
+	non-removable;
+	disable-wp;
+
+	/* WiFi firmware requires power to be kept while in suspend */
+	keep-power-in-suspend;
+
+	mmc-pwrseq = <&sdio_pwrseq>;
+
+	vmmc-supply = <&vddao_3v3>;
+	vqmmc-supply = <&vddio_boot>;
+
+	sdio: wifi@1 {
+		reg = <1>;
+	}
+};
+
+/* eMMC */
+&sd_emmc_c {
+	status = "okay";
+	pinctrl-0 = <&emmc_pins>, <&emmc_ds_pins>;
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
+
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	max-frequency = <200000000>;
+	non-removable;
+	disable-wp;
+	mmc-ddr-1_8v;
+	mmc-hs200-1_8v;
+
+	mmc-pwrseq = <&emmc_pwrseq>;
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&vddio_boot>;
+};
+
+&pwm_ef {
+	status = "okay";
+	pinctrl-0 = <&pwm_e_pins>;
+	pinctrl-names = "default";
+};
+
+/*
+ * This is connected to the Bluetooth module
+ * Note: There's no driver for the Bluetooth module of some variants yet.
+ */
+&uart_A {
+	status = "okay";
+	pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
+	pinctrl-names = "default";
+	uart-has-rtscts;
+};
+
+&uart_AO {
+	status = "okay";
+	pinctrl-0 = <&uart_ao_a_pins>;
+	pinctrl-names = "default";
+};
+
+&usb {
+	status = "okay";
+	dr_mode = "otg";
+	vbus-supply = <&vcc_5v>;
+};

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s805y.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl-s805y.dtsi
new file mode 100644
index 000000000..49b29b71f
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s805y.dtsi

@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2025 Ferass El Hafidi <funderscore@postmarketos.org>
+ */
+
+#include "meson-gxl-s805x.dtsi"
+
+/ {
+	compatible = "amlogic,s805y", "amlogic,meson-gxl";
+};

-- 
2.47.1

On Wed Mar 19, 2025 at 7:01 PM UTC, Ferass El Hafidi wrote:
<snip>

More information is available on the postmarketOS wiki page [6].

Which would be https://wiki.postmarketos.org/wiki/Xiaomi_Mi_TV_Stick_(xiaomi-aquaman)

Sorry, forgot to put the link.

Regards.

[1]: https://lore.kernel.org/all/20250203174346.13737-1-funderscore@postmarketos.org/
[2]: https://lore.kernel.org/all/20250203091453.15751-1-funderscore@postmarketos.org/
[3]: https://lore.kernel.org/all/20250201193044.28856-1-funderscore@postmarketos.org/
[4]: https://lore.kernel.org/all/20250131200319.19996-1-funderscore@postmarketos.org/
[5]: https://lore.kernel.org/linux-amlogic/20241227212514.1376682-1-martin.blumenstingl@googlemail.com/


Ferass El Hafidi (2):
  dt-bindings: arm: amlogic: add S805Y and Mi TV Stick
  arm64: dts: amlogic: add support for xiaomi-aquaman/Mi TV Stick

 .../devicetree/bindings/arm/amlogic.yaml      |   7 +
 arch/arm64/boot/dts/amlogic/Makefile          |   1 +
 .../meson-gxl-s805y-xiaomi-aquaman.dts        | 292 ++++++++++++++++++
 .../boot/dts/amlogic/meson-gxl-s805y.dtsi     |  10 +
 4 files changed, 310 insertions(+)
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dts
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s805y.dtsi

On Wed, Mar 19, 2025 at 8:02 PM Ferass El Hafidi
[off-list ref] wrote:

Add support for the Amlogic S805Y SoC and the Xiaomi Mi TV Stick (aka.
xiaomi-aquaman).  The S805Y is very similar to the S805X, with just a
few minor differences.

Signed-off-by: Ferass El Hafidi <redacted>
Acked-by: Krzysztof Kozlowski <redacted>

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

Hello,

thanks for your contribution and sorry for the late reply!

On Wed, Mar 19, 2025 at 8:02 PM Ferass El Hafidi
[off-list ref] wrote:
[...]

I couldn't find any pictures online that show an analog audio output
(typically a 3.5mm socket).
Can you confirm that this is really present?

[...]

If there's no analog audio in/out then this section can be cleaned up
as well - together with the references to acodec in the dai-links
below.

[...]

+/* Wireless SDIO Module (Amlogic W155S1 / Realtek RTL8821CS) */
+&sd_emmc_b {

question to Neil: since we know that there's two board variants out
there (with different wifi chipsets) - are dt overlays down the road
enough (to enable Bluetooth / wifi - depending on the chipset or board
revision) or do we need to split the whole .dts?


Best regards,
Martin

On Wed, 19 Mar 2025 19:01:48 +0000, Ferass El Hafidi wrote:

This patch series aims to add initial support for the Xiaomi Mi TV
Stick.

Xiaomi Mi TV Stick is a small Amlogic-based Android TV stick released in
2020, and known as `xiaomi-aquaman` internally (in the downstream kernel,
u-boot, ...)
Its specifications are as follows:
 * Amlogic S805Y SoC (believed to be mostly identical to S805X)
 * 8 GB eMMC
 * 1 GB of RAM
 * Wi-Fi + Bluetooth
 * Android TV 9, upgradable to Android TV 10
 * Google-certified

There are multiple variants:
 * 1. Green PCB, manufactured in 2020, known UART pinout (helpfully
   labeled on the board)
 * 2. Blue PCB, not much documentation about it, presumably manufactured
   between 2021 and 2023
 * 3. Green PCB, manufactured in 2023/2024, known UART pinout, some layout
   changes compared to the 2020 variant

Among these variants, there are many boards using multiple different
Wi-Fi chips.  Supporting all of them is out of scope for this patch
series.  However, there has been some work identifying Wi-Fi/Bluetooth
since v4.  Some variants use a Realtek module while others use an
Amlogic module.

As of the time of writing this has only been tested on the 3rd variant.
It is believed that software-wise all three work mostly the same (if we
don't count Wi-Fi/BT), but testing on the other variants would still be
appreciated.  Sadly, booting Mainline linux is slightly more
challenging on some versions of the original firmware.

The devicetree is based on the Amlogic P241 DTS.

Changes since v4 [1]:
 * add Acked-by from krzk
 * Wi-Fi on sd_emmc_b

42 more quoted lines

My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


New warnings running 'make CHECK_DTBS=y for arch/arm64/boot/dts/amlogic/' for 20250319190150.31529-2-funderscore@postmarketos.org:

Error: arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dts:243.1-2 syntax error
FATAL ERROR: Unable to parse input tree
make[3]: *** [scripts/Makefile.dtbs:131: arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dtb] Error 1
make[2]: *** [scripts/Makefile.build:461: arch/arm64/boot/dts/amlogic] Error 2
make[2]: Target 'arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dtb' not remade because of errors.
make[1]: *** [/home/rob/proj/linux-dt-testing/Makefile:1475: amlogic/meson-gxl-s805y-xiaomi-aquaman.dtb] Error 2
make: *** [Makefile:248: __sub-make] Error 2
make: Target 'amlogic/meson-gxl-s905x-hwacom-amazetv.dtb' not remade because of errors.
make: Target 'amlogic/meson-gxl-s905d-sml5442tw.dtb' not remade because of errors.
make: Target 'amlogic/meson-gxl-s905d-phicomm-n1.dtb' not remade because of errors.
make: Target 'amlogic/meson-s4-s805x2-aq222.dtb' not remade because of errors.
make: Target 'amlogic/meson-gxl-s905w-p281.dtb' not remade because of errors.
make: Target 'amlogic/meson-gxm-s912-libretech-pc.dtb' not remade because of errors.
make: Target 'amlogic/meson-g12a-sei510.dtb' not remade because of errors.
make: Target 'amlogic/meson-gxm-q200.dtb' not remade because of errors.
make: Target 'amlogic/meson-gxl-s905x-khadas-vim.dtb' not remade because of errors.
make: Target 'amlogic/meson-gxlx-s905l-p271.dtb' not remade because of errors.
make: Target 'amlogic/meson-gxm-mecool-kiii-pro.dtb' not remade because of errors.
make: Target 'amlogic/meson-gxm-vega-s96.dtb' not remade because of errors.
make: Target 'amlogic/meson-g12a-fbx8am.dtb' not remade because of errors.
make: Target 'amlogic/meson-g12b-bananapi-cm4-cm4io.dtb' not remade because of errors.
make: Target 'amlogic/amlogic-c3-c308l-aw419.dtb' not remade because of errors.

81 more lines

On Wed Mar 19, 2025 at 10:36 PM UTC, Martin Blumenstingl wrote:

Hello,

thanks for your contribution and sorry for the late reply!

On Wed, Mar 19, 2025 at 8:02 PM Ferass El Hafidi
[off-list ref] wrote:
[...]

quoted

+       au2: analog-amplifier {
+               compatible = "simple-audio-amplifier";
+               sound-name-prefix = "AU2";
+               VCC-supply = <&vcc_5v>;
+               enable-gpios = <&gpio GPIOH_5 GPIO_ACTIVE_HIGH>;
+       };

I couldn't find any pictures online that show an analog audio output
(typically a 3.5mm socket).
Can you confirm that this is really present?

[...]

quoted

+       sound {
+               compatible = "amlogic,gx-sound-card";
+               model = "XIAOMI-AQUAMAN";
+               audio-aux-devs = <&au2>;
+               audio-widgets = "Line", "Lineout";
+               audio-routing = "AU2 INL", "ACODEC LOLN",
+                               "AU2 INR", "ACODEC LORN",
+                               "Lineout", "AU2 OUTL",
+                               "Lineout", "AU2 OUTR";

If there's no analog audio in/out then this section can be cleaned up
as well - together with the references to acodec in the dai-links
below.

Oops, completely overlooked those.  Will fix in v6.  There indeed is no 
analog audio output.

[...]

quoted

+/* Wireless SDIO Module (Amlogic W155S1 / Realtek RTL8821CS) */
+&sd_emmc_b {

question to Neil: since we know that there's two board variants out
there (with different wifi chipsets) - are dt overlays down the road
enough (to enable Bluetooth / wifi - depending on the chipset or board
revision) or do we need to split the whole .dts?

So far W155S1 and RTL8821CS are the *known* chipsets used, but there may 
be others.  Right now it's not my main concern, as W155S1 is not
supported in Mainline, as far as I know, and I can't test RTL8821CS
because my variant seems to have the former.

Best regards,
Martin

Regards.

On 19/03/2025 20:01, Ferass El Hafidi wrote:

309 more quoted lines

I get:
Error: arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dts:243.1-2 syntax error
FATAL ERROR: Unable to parse input tree

whil building, could you fix that ?

Neil

On 19/03/2025 23:36, Martin Blumenstingl wrote:

Hello,

thanks for your contribution and sorry for the late reply!

On Wed, Mar 19, 2025 at 8:02 PM Ferass El Hafidi
[off-list ref] wrote:
[...]

quoted

+       au2: analog-amplifier {
+               compatible = "simple-audio-amplifier";
+               sound-name-prefix = "AU2";
+               VCC-supply = <&vcc_5v>;
+               enable-gpios = <&gpio GPIOH_5 GPIO_ACTIVE_HIGH>;
+       };

I couldn't find any pictures online that show an analog audio output
(typically a 3.5mm socket).
Can you confirm that this is really present?

[...]

quoted

+       sound {
+               compatible = "amlogic,gx-sound-card";
+               model = "XIAOMI-AQUAMAN";
+               audio-aux-devs = <&au2>;
+               audio-widgets = "Line", "Lineout";
+               audio-routing = "AU2 INL", "ACODEC LOLN",
+                               "AU2 INR", "ACODEC LORN",
+                               "Lineout", "AU2 OUTL",
+                               "Lineout", "AU2 OUTR";

If there's no analog audio in/out then this section can be cleaned up
as well - together with the references to acodec in the dai-links
below.

[...]

quoted

+/* Wireless SDIO Module (Amlogic W155S1 / Realtek RTL8821CS) */
+&sd_emmc_b {

question to Neil: since we know that there's two board variants out
there (with different wifi chipsets) - are dt overlays down the road
enough (to enable Bluetooth / wifi - depending on the chipset or board
revision) or do we need to split the whole .dts?

Perhaps yes

Neil

Best regards,
Martin

On Mon Mar 24, 2025 at 7:02 AM UTC, Neil Armstrong wrote:

I get:
Error: arch/arm64/boot/dts/amlogic/meson-gxl-s805y-xiaomi-aquaman.dts:243.1-2 syntax error
FATAL ERROR: Unable to parse input tree

Yes, somehow a ";" is missing.

whil building, could you fix that ?

Neil

Hi,

On Wed, 19 Mar 2025 19:01:48 +0000, Ferass El Hafidi wrote:

This patch series aims to add initial support for the Xiaomi Mi TV
Stick.

Xiaomi Mi TV Stick is a small Amlogic-based Android TV stick released in
2020, and known as `xiaomi-aquaman` internally (in the downstream kernel,
u-boot, ...)
Its specifications are as follows:
 * Amlogic S805Y SoC (believed to be mostly identical to S805X)
 * 8 GB eMMC
 * 1 GB of RAM
 * Wi-Fi + Bluetooth
 * Android TV 9, upgradable to Android TV 10
 * Google-certified

[...]

Thanks, Applied to https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git (v6.16/arm64-dt)

[1/2] dt-bindings: arm: amlogic: add S805Y and Mi TV Stick
      https://git.kernel.org/amlogic/c/4954ec9300cfe7ab6f1de1c93c56c236ac0a07e5
[2/2] arm64: dts: amlogic: add support for xiaomi-aquaman/Mi TV Stick
      https://git.kernel.org/amlogic/c/f5d4227c6dcab047579cca7b8e31a476ecdebf7b

These changes has been applied on the intermediate git tree [1].

The v6.16/arm64-dt branch will then be sent via a formal Pull Request to the Linux SoC maintainers
for inclusion in their intermediate git branches in order to be sent to Linus during
the next merge window, or sooner if it's a set of fixes.

In the cases of fixes, those will be merged in the current release candidate
kernel and as soon they appear on the Linux master branch they will be
backported to the previous Stable and Long-Stable kernels [2].

The intermediate git branches are merged daily in the linux-next tree [3],
people are encouraged testing these pre-release kernels and report issues on the
relevant mailing-lists.

If problems are discovered on those changes, please submit a signed-off-by revert
patch followed by a corrective changeset.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
[3] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

-- 
Neil