[11/11,EXAMPLE] arm64: dts: allwinner: a527-cubie-a5e: Enable I2S and SPDIF output
Commit Message
This is an example change.
The Radxa Cubie A5E exposes I2S2 and SPDIF on the 40-pin header. Enable
both.
In this example, I2S2 is connected to adafruit speaker bonnet, which
sports a pair of MAX98357A for speaker amplication. SPDIF is connected
to a SPDIF interface card for PCs, which has both coaxial and optical
outputs. The output was connected via optical cable to a dumb SPDIF to
analog audio converter.
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
---
.../dts/allwinner/sun55i-a527-cubie-a5e.dts | 52 +++++++++++++++++++
1 file changed, 52 insertions(+)
Comments
Hi Chen-Yu,
kernel test robot noticed the following build errors:
[auto build test ERROR on sunxi/sunxi/for-next]
[also build test ERROR on broonie-sound/for-next vkoul-dmaengine/next linus/master v6.18-rc2 next-20251021]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Chen-Yu-Tsai/dt-bindings-dma-allwinner-sun50i-a64-dma-Add-compatibles-for-A523/20251021-011340
base: https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux.git sunxi/for-next
patch link: https://lore.kernel.org/r/20251020171059.2786070-12-wens%40kernel.org
patch subject: [PATCH 11/11] [EXAMPLE] arm64: dts: allwinner: a527-cubie-a5e: Enable I2S and SPDIF output
config: arm64-defconfig (https://download.01.org/0day-ci/archive/20251022/202510220453.UbrhVlRH-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251022/202510220453.UbrhVlRH-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202510220453.UbrhVlRH-lkp@intel.com/
All errors (new ones prefixed by >>):
also defined at arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts:393.8-397.3
>> ERROR: Input tree has errors, aborting (use -f to force output)
@@ -64,6 +64,46 @@ reg_usb_vbus: vbus {
gpio = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
enable-active-high;
};
+
+ codec: audio-codec {
+ compatible = "maxim,max98360a";
+ #sound-dai-cells = <0>;
+ };
+
+ sound-i2s {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "I2S";
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&dailink_cpu>;
+ simple-audio-card,frame-master = <&dailink_cpu>;
+ simple-audio-card,mclk-fs = <128>;
+
+ dailink_cpu: simple-audio-card,cpu {
+ sound-dai = <&i2s2>;
+ };
+
+ dailink0_master: simple-audio-card,codec {
+ sound-dai = <&codec>;
+ };
+ };
+
+ sound-spdif {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "spdif-out";
+
+ simple-audio-card,cpu {
+ sound-dai = <&spdif>;
+ };
+
+ simple-audio-card,codec {
+ sound-dai = <&spdif_out>;
+ };
+ };
+
+ spdif_out: spdif-out {
+ #sound-dai-cells = <0>;
+ compatible = "linux,spdif-dit";
+ };
};
&ehci0 {
@@ -101,6 +141,12 @@ &gpu {
status = "okay";
};
+&i2s2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2s2_pi_pins>;
+ status = "okay";
+};
+
&mdio0 {
ext_rgmii0_phy: ethernet-phy@1 {
compatible = "ethernet-phy-ieee802.3-c22";
@@ -344,6 +390,12 @@ &r_pio {
vcc-pm-supply = <®_aldo3>;
};
+&spdif {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spdif_out_pi_pin>;
+ status = "okay";
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pb_pins>;