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101 lines
2.8 KiB
Diff
101 lines
2.8 KiB
Diff
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From 2f656dc533b65ae7f23527c3dc176efa92add105 Mon Sep 17 00:00:00 2001
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From: j-schambacher <joerg@hifiberry.com>
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Date: Tue, 20 Aug 2024 10:24:10 +0200
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Subject: [PATCH 1229/1350] overlays: Add overlay for Hifiberry ADC
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Adds the DT overlay for the HiFiBerry ADC.
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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 | 7 +++
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.../dts/overlays/hifiberry-adc-overlay.dts | 45 +++++++++++++++++++
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sound/soc/bcm/Kconfig | 1 +
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4 files changed, 54 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/hifiberry-adc-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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@@ -85,6 +85,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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hd44780-i2c-lcd.dtbo \
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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-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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@@ -1771,6 +1771,13 @@ Params: gpio_pin GPIO pin
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expects a high to switch it on.
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+Name: hifiberry-adc
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+Info: Configures the HifiBerry ADC audio card
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+Load: dtoverlay=hifiberry-adc,<param>=<val>
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+Params: leds_off If set to 'true' the onboard indicator LED
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+ is switched off at all times.
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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-adc-overlay.dts
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@@ -0,0 +1,45 @@
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+// SPDX-License-Identifier: GPL-2.0
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+// Definitions for HiFiBerry ADC, no onboard clocks
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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,bcm2835";
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+
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+ fragment@0 {
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+ target = <&i2s_clk_producer>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&i2c1>;
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+ __overlay__ {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ status = "okay";
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+
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+ hb_adc: pcm186x@4a {
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+ #sound-dai-cells = <0>;
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+ compatible = "ti,pcm1863";
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+ reg = <0x4a>;
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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@2 {
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+ target = <&sound>;
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+ hifiberry_adc: __overlay__ {
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+ compatible = "hifiberry,hifiberry-adc";
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+ audio-codec = <&hb_adc>;
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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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+ __overrides__ {
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+ leds_off = <&hifiberry_adc>,"hifiberry-adc,leds_off?";
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+ };
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+};
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--- a/sound/soc/bcm/Kconfig
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+++ b/sound/soc/bcm/Kconfig
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@@ -45,6 +45,7 @@ config SND_BCM2708_SOC_HIFIBERRY_ADC
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select SND_RPI_HIFIBERRY_ADC
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help
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Say Y or M if you want to add support for HifiBerry ADC.
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+ Use this module for HiFiBerry's ADC-only sound cards
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config SND_BCM2708_SOC_HIFIBERRY_DAC
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tristate "Support for HifiBerry DAC and DAC8X"
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