[PATCH] arm64: dts: meson-sm1: add spdifin spdifout nodes
Artem Lapkin
email2tema at gmail.com
Tue Dec 14 19:02:36 PST 2021
Add spdifin spdifout nodes for Amlogic SM1 SoCs.
Signed-off-by: Artem Lapkin <art at khadas.com>
---
SPDIF IN and SPDIF OUT both tested and works fine for VIM3L (meson-sm1)
same as for VIM3 (meson-g12)
SPDIF in and SPDIF OUT both pins available via GPIO header (SPDIF_OUT PIN
13 spdif_ao_out_pins and SPDIF_IN PIN 35 - same PWM_F spdif_in_h_pins)
https://lore.kernel.org/linux-arm-kernel/1jtuhwvqxa.fsf@starbuckisacylon.baylibre.com/t/
ALSA spdifin test example
=========================
# arecord -fS16_LE -r48000 -c2 -Dplug:spdifin
# cat .asoundrc
pcm.spdifin {
type iec958
slave {
pcm "hw:0,1"
format IEC958_SUBFRAME_LE
}
}
DT sound card configs for testing
=================================
&spdifout {
pinctrl-0 = <&spdif_ao_out_pins>;
pinctrl-names = "default";
status = "okay";
};
&spdifin {
pinctrl-0 = <&spdif_in_h_pins>;
pinctrl-names = "default";
status = "okay";
};
...
spdif_dit: audio-codec-1 {
#sound-dai-cells = <0>;
compatible = "linux,spdif-dit";
status = "okay";
sound-name-prefix = "DIT";
};
spdif_dir: audio-codec-2 {
#sound-dai-cells = <0>;
compatible = "linux,spdif-dir";
status = "okay";
sound-name-prefix = "DIR";
};
...
audio-routing = ...
"TODDR_B IN 3", "SPDIFIN Capture",
"SPDIFOUT IN 0", "FRDDR_A OUT 3";
...
dai-link-10 {
sound-dai = <&spdifout>;
codec-0 {
sound-dai = <&spdif_dit>;
};
};
/* spdif or toslink interface */
dai-link-11 {
sound-dai = <&spdifin>;
codec-0 {
sound-dai = <&spdif_dir>;
};
};
...
---
arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 27 ++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi
index 3d8b1f4f2001..1e0adf259d61 100644
--- a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi
@@ -356,6 +356,33 @@ tdmin_lb: audio-controller at 3c0 {
status = "disabled";
};
+ spdifin: audio-controller at 400 {
+ compatible = "amlogic,g12a-spdifin",
+ "amlogic,axg-spdifin";
+ reg = <0x0 0x400 0x0 0x30>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "SPDIFIN";
+ interrupts = <GIC_SPI 151 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc_audio AUD_CLKID_SPDIFIN>,
+ <&clkc_audio AUD_CLKID_SPDIFIN_CLK>;
+ clock-names = "pclk", "refclk";
+ resets = <&clkc_audio AUD_RESET_SPDIFIN>;
+ status = "disabled";
+ };
+
+ spdifout: audio-controller at 480 {
+ compatible = "amlogic,g12a-spdifout",
+ "amlogic,axg-spdifout";
+ reg = <0x0 0x480 0x0 0x50>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "SPDIFOUT";
+ clocks = <&clkc_audio AUD_CLKID_SPDIFOUT>,
+ <&clkc_audio AUD_CLKID_SPDIFOUT_CLK>;
+ clock-names = "pclk", "mclk";
+ resets = <&clkc_audio AUD_RESET_SPDIFOUT>;
+ status = "disabled";
+ };
+
tdmout_a: audio-controller at 500 {
compatible = "amlogic,sm1-tdmout";
reg = <0x0 0x500 0x0 0x40>;
--
2.25.1
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