mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2024-11-25 06:26:15 +00:00
538a1d740c
The patches were generated from the RPi repo with the following command: git format-patch v6.6.58..rpi-6.6.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
97 lines
2.5 KiB
Diff
97 lines
2.5 KiB
Diff
From 209e8a3e6646f25abb352fd5a8a4c2e855b1e952 Mon Sep 17 00:00:00 2001
|
|
From: Adrian Figueroa <elagil@takanome.de>
|
|
Date: Wed, 14 Aug 2024 20:00:12 +0200
|
|
Subject: [PATCH 1219/1350] overlays: add overlay for generic I2S clock-master
|
|
DAC
|
|
|
|
Adds an overlay for supporting a generic I2S DAC that
|
|
acts as the clock master on the bus.
|
|
The data format is 32 bit stereo.
|
|
|
|
Signed-off-by: Adrian Figueroa <elagil@takanome.de>
|
|
---
|
|
arch/arm/boot/dts/overlays/Makefile | 1 +
|
|
arch/arm/boot/dts/overlays/README | 6 +++
|
|
.../dts/overlays/i2s-master-dac-overlay.dts | 50 +++++++++++++++++++
|
|
3 files changed, 57 insertions(+)
|
|
create mode 100644 arch/arm/boot/dts/overlays/i2s-master-dac-overlay.dts
|
|
|
|
--- a/arch/arm/boot/dts/overlays/Makefile
|
|
+++ b/arch/arm/boot/dts/overlays/Makefile
|
|
@@ -125,6 +125,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
|
|
i2c6.dtbo \
|
|
i2s-dac.dtbo \
|
|
i2s-gpio28-31.dtbo \
|
|
+ i2s-master-dac.dtbo \
|
|
ilitek251x.dtbo \
|
|
imx219.dtbo \
|
|
imx258.dtbo \
|
|
--- a/arch/arm/boot/dts/overlays/README
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
|
@@ -2633,6 +2633,12 @@ Load: dtoverlay=i2s-gpio28-31
|
|
Params: <None>
|
|
|
|
|
|
+Name: i2s-master-dac
|
|
+Info: Configures a generic I2S DAC soundcard that acts as a clock master.
|
|
+Load: dtoverlay=i2s-master-dac
|
|
+Params: <None>
|
|
+
|
|
+
|
|
Name: ilitek251x
|
|
Info: Enables I2C connected Ilitek 251x multiple touch controller using
|
|
GPIO 4 (pin 7 on GPIO header) for interrupt.
|
|
--- /dev/null
|
|
+++ b/arch/arm/boot/dts/overlays/i2s-master-dac-overlay.dts
|
|
@@ -0,0 +1,50 @@
|
|
+// Definitions for a generic I2S DAC that acts as clock master on the bus.
|
|
+/dts-v1/;
|
|
+/plugin/;
|
|
+
|
|
+/ {
|
|
+ compatible = "brcm,bcm2835";
|
|
+
|
|
+ fragment@0 {
|
|
+ target = <&i2s_clk_consumer>;
|
|
+ __overlay__ {
|
|
+ status = "okay";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@1 {
|
|
+ target-path = "/";
|
|
+ __overlay__ {
|
|
+ codec_bare: codec_bare {
|
|
+ compatible = "linux,spdif-dit";
|
|
+ #sound-dai-cells = <0>;
|
|
+ status = "okay";
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@2 {
|
|
+ target = <&sound>;
|
|
+ __overlay__ {
|
|
+ compatible = "simple-audio-card";
|
|
+ i2s-controller = <&i2s_clk_consumer>;
|
|
+ status = "okay";
|
|
+
|
|
+ simple-audio-card,name = "i2s-master-dac";
|
|
+ simple-audio-card,format = "i2s";
|
|
+
|
|
+ simple-audio-card,bitclock-master = <&snd_codec>;
|
|
+ simple-audio-card,frame-master = <&snd_codec>;
|
|
+
|
|
+ simple-audio-card,cpu {
|
|
+ sound-dai = <&i2s_clk_consumer>;
|
|
+ dai-tdm-slot-num = <2>;
|
|
+ dai-tdm-slot-width = <32>;
|
|
+ };
|
|
+
|
|
+ snd_codec: simple-audio-card,codec {
|
|
+ sound-dai = <&codec_bare>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+};
|