You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
129 lines
3.4 KiB
Diff
129 lines
3.4 KiB
Diff
From 36a2db8647b19b0c8576a10ab787b14098049f9b Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
Date: Wed, 28 Feb 2018 21:29:42 +0000
|
|
Subject: [PATCH 235/454] overlays: Add overlay for PiBell soundcard
|
|
|
|
This overlay is presented as another example of using the simple card
|
|
driver.
|
|
|
|
See: https://www.raspberrypi.org/forums/viewtopic.php?f=44&t=99784&p=1279490#p1278971
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
|
---
|
|
arch/arm/boot/dts/overlays/Makefile | 1 +
|
|
arch/arm/boot/dts/overlays/README | 7 ++
|
|
arch/arm/boot/dts/overlays/pibell-overlay.dts | 81 +++++++++++++++++++
|
|
3 files changed, 89 insertions(+)
|
|
create mode 100644 arch/arm/boot/dts/overlays/pibell-overlay.dts
|
|
|
|
--- a/arch/arm/boot/dts/overlays/Makefile
|
|
+++ b/arch/arm/boot/dts/overlays/Makefile
|
|
@@ -76,6 +76,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
|
|
pi3-disable-bt.dtbo \
|
|
pi3-disable-wifi.dtbo \
|
|
pi3-miniuart-bt.dtbo \
|
|
+ pibell.dtbo \
|
|
piscreen.dtbo \
|
|
piscreen2r.dtbo \
|
|
pisound.dtbo \
|
|
--- a/arch/arm/boot/dts/overlays/README
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
|
@@ -1182,6 +1182,13 @@ Load: dtoverlay=pi3-miniuart-bt
|
|
Params: <None>
|
|
|
|
|
|
+Name: pibell
|
|
+Info: Configures the pibell audio card.
|
|
+Load: dtoverlay=pibell,<param>=<val>
|
|
+Params: alsaname Set the name as it appears in ALSA (default
|
|
+ "PiBell")
|
|
+
|
|
+
|
|
Name: piscreen
|
|
Info: PiScreen display by OzzMaker.com
|
|
Load: dtoverlay=piscreen,<param>=<val>
|
|
--- /dev/null
|
|
+++ b/arch/arm/boot/dts/overlays/pibell-overlay.dts
|
|
@@ -0,0 +1,81 @@
|
|
+/dts-v1/;
|
|
+/plugin/;
|
|
+
|
|
+/ {
|
|
+ compatible = "brcm,bcm2708";
|
|
+
|
|
+ fragment@0 {
|
|
+ target-path = "/";
|
|
+ __overlay__ {
|
|
+ codec_out: spdif-transmitter {
|
|
+ #address-cells = <0>;
|
|
+ #size-cells = <0>;
|
|
+ #sound-dai-cells = <0>;
|
|
+ compatible = "linux,spdif-dit";
|
|
+ status = "okay";
|
|
+ };
|
|
+
|
|
+ codec_in: card-codec {
|
|
+ #sound-dai-cells = <0>;
|
|
+ compatible = "invensense,ics43432";
|
|
+ status = "okay";
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@1 {
|
|
+ target = <&i2s>;
|
|
+ __overlay__ {
|
|
+ #sound-dai-cells = <0>;
|
|
+ status = "okay";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@2 {
|
|
+ target = <&sound>;
|
|
+ snd: __overlay__ {
|
|
+ compatible = "simple-audio-card";
|
|
+ simple-audio-card,name = "PiBell";
|
|
+
|
|
+ status="okay";
|
|
+
|
|
+ capture_link: simple-audio-card,dai-link@0 {
|
|
+ format = "i2s";
|
|
+
|
|
+ r_cpu_dai: cpu {
|
|
+ sound-dai = <&i2s>;
|
|
+
|
|
+/* example TDM slot configuration
|
|
+ dai-tdm-slot-num = <2>;
|
|
+ dai-tdm-slot-width = <32>;
|
|
+*/
|
|
+ };
|
|
+
|
|
+ r_codec_dai: codec {
|
|
+ sound-dai = <&codec_in>;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ playback_link: simple-audio-card,dai-link@1 {
|
|
+ format = "i2s";
|
|
+
|
|
+ p_cpu_dai: cpu {
|
|
+ sound-dai = <&i2s>;
|
|
+
|
|
+/* example TDM slot configuration
|
|
+ dai-tdm-slot-num = <2>;
|
|
+ dai-tdm-slot-width = <32>;
|
|
+*/
|
|
+ };
|
|
+
|
|
+ p_codec_dai: codec {
|
|
+ sound-dai = <&codec_out>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ __overrides__ {
|
|
+ alsaname = <&snd>, "simple-audio-card,name";
|
|
+ };
|
|
+};
|