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Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0680-overlays-Add-overlay-for-Chipdip-I2S-master-DAC.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.10/950-0680-overlays-Add-overlay-for-Chipdip-I2S-master-DAC.patch94
1 files changed, 94 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0680-overlays-Add-overlay-for-Chipdip-I2S-master-DAC.patch b/target/linux/bcm27xx/patches-5.10/950-0680-overlays-Add-overlay-for-Chipdip-I2S-master-DAC.patch
new file mode 100644
index 0000000000..6428e2fc0f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0680-overlays-Add-overlay-for-Chipdip-I2S-master-DAC.patch
@@ -0,0 +1,94 @@
+From 63f4efd396406bcfea7f72c4ba883a9acf0e039c Mon Sep 17 00:00:00 2001
+From: "chipdip.lab" <43340836+chipdipru@users.noreply.github.com>
+Date: Fri, 9 Jul 2021 16:00:22 +0300
+Subject: [PATCH] overlays: Add overlay for Chipdip I2S master DAC
+
+Signed-off-by: Evgenij Sapunov <evgenij.sapunov@chipdip.ru>
+---
+ arch/arm/boot/dts/overlays/Makefile | 1 +
+ arch/arm/boot/dts/overlays/README | 6 +++
+ .../chipdip-i2s-master-dac-overlay.dts | 53 +++++++++++++++++++
+ 3 files changed, 60 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/chipdip-i2s-master-dac-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -30,6 +30,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ audiosense-pi.dtbo \
+ audremap.dtbo \
+ balena-fin.dtbo \
++ chipdip-i2s-master-dac.dtbo \
+ cma.dtbo \
+ dht11.dtbo \
+ dionaudio-loco.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -622,6 +622,12 @@ Info: This overlay is now deprecated -
+ Load: <Deprecated>
+
+
++Name: chipdip-i2s-master-dac
++Info: Configures Raspberry PI to work as I2S slave with BCLK=64Fs.
++Load: dtoverlay=chipdip-i2s-master-dac
++Params: <None>
++
++
+ Name: cma
+ Info: Set custom CMA sizes, only use if you know what you are doing, might
+ clash with other overlays like vc4-fkms-v3d and vc4-kms-v3d.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/chipdip-i2s-master-dac-overlay.dts
+@@ -0,0 +1,53 @@
++/*
++ * Device Tree overlay for ChipDip I2S master DAC
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++ compatible = "brcm,bcm2835";
++ fragment@0 {
++ target = <&sound>;
++ __overlay__ {
++ compatible = "simple-audio-card";
++ simple-audio-card,name = "ChipDip I2S master DAC";
++ status="okay";
++ playback_link: simple-audio-card,dai-link@0 {
++ format = "i2s";
++ bitclock-master = <&p_codec_dai>;
++ frame-master = <&p_codec_dai>;
++ p_cpu_dai: cpu {
++ sound-dai = <&i2s>;
++ dai-tdm-slot-num = <2>;
++ dai-tdm-slot-width = <32>;
++ };
++
++ p_codec_dai: codec {
++ sound-dai = <&codec_out>;
++ };
++ };
++ };
++ };
++
++ fragment@1 {
++ target-path = "/";
++ __overlay__ {
++ codec_out: spdif-transmitter {
++ #address-cells = <0>;
++ #size-cells = <0>;
++ #sound-dai-cells = <0>;
++ compatible = "linux,spdif-dit";
++ status = "okay";
++ };
++ };
++ };
++
++ fragment@2 {
++ target = <&i2s>;
++ __overlay__ {
++ #sound-dai-cells = <0>;
++ status = "okay";
++ };
++ };
++};