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114 lines
2.8 KiB
Diff
114 lines
2.8 KiB
Diff
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From 77773aec03f65758c760ec5b43a79ad6edeb211b Mon Sep 17 00:00:00 2001
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From: j-schambacher <joerg@hifiberry.com>
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Date: Thu, 12 Sep 2024 16:44:12 +0200
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Subject: [PATCH 1263/1350] dtoverlays: adds the definitions for the HiFiBerry
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8-channel ADC
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Additions and changes for the 8 channel ADC card. This card uses only
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HW-controlled devices which allows the uses of the 'dummy-dai'.
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It will run only on a PI5 as it requires the designware I2S0 module.
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The necessary output lanes I2S0_DI[0..3] are claimed from within the
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DT overlay.
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Signed-off-by: j-schambacher <joerg@hifiberry.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 6 +++
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.../dts/overlays/hifiberry-adc8x-overlay.dts | 50 +++++++++++++++++++
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arch/arm/boot/dts/overlays/overlay_map.dts | 4 ++
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4 files changed, 61 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/hifiberry-adc8x-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -86,6 +86,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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hd44780-lcd.dtbo \
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hdmi-backlight-hwhack-gpio.dtbo \
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hifiberry-adc.dtbo \
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+ hifiberry-adc8x.dtbo \
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hifiberry-amp.dtbo \
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hifiberry-amp100.dtbo \
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hifiberry-amp3.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -1778,6 +1778,12 @@ Params: leds_off If set t
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is switched off at all times.
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+Name: hifiberry-adc8x
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+Info: Configures the HifiBerry ADC8X audio card (only on Pi5)
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+Load: dtoverlay=hifiberry-adc8x
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+Params: <None>
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+
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+
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Name: hifiberry-amp
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Info: Configures the HifiBerry Amp and Amp+ audio cards
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Load: dtoverlay=hifiberry-amp
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/hifiberry-adc8x-overlay.dts
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@@ -0,0 +1,50 @@
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+// Definitions for HiFiBerry ADC8x
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ compatible = "brcm,bcm2712";
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+
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+ fragment@0 {
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+ target = <&gpio>;
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+ __overlay__ {
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+ rp1_i2s0_adc8x: rp1_i2s0_adc8x {
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+ function = "i2s0";
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+ pins = "gpio18", "gpio19", "gpio20",
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+ "gpio22", "gpio24", "gpio26";
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+ bias-disable;
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+ status = "okay";
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+ };
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&i2s_clk_producer>;
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+ __overlay__ {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&rp1_i2s0_adc8x>;
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@2 {
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+ target-path = "/";
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+ __overlay__ {
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+ dummy-codec {
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+ #sound-dai-cells = <0>;
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+ compatible = "snd-soc-dummy";
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+ status = "okay";
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+ };
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+ };
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+ };
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+
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+ fragment@3 {
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+ target = <&sound>;
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+ __overlay__ {
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+ compatible = "hifiberry,hifiberry-adc8x";
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+ i2s-controller = <&i2s_clk_producer>;
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+ status = "okay";
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+ };
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+ };
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+
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+};
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--- a/arch/arm/boot/dts/overlays/overlay_map.dts
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+++ b/arch/arm/boot/dts/overlays/overlay_map.dts
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@@ -48,6 +48,10 @@
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bcm2712;
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};
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+ hifiberry-adc8x {
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+ bcm2712;
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+ };
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+
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hifiberry-dac8x {
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bcm2712;
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};
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