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262 lines
8.1 KiB
Diff
262 lines
8.1 KiB
Diff
From be377792090556422c0735f3486b502b991da36d Mon Sep 17 00:00:00 2001
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From: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
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Date: Sat, 2 Jul 2016 16:26:19 +0100
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Subject: [PATCH] Add support for Dion Audio LOCO DAC-AMP HAT
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Using dedicated machine driver and pcm5102a codec driver.
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Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
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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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.../boot/dts/overlays/dionaudio-loco-overlay.dts | 39 +++++++
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arch/arm/configs/bcm2709_defconfig | 1 +
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arch/arm/configs/bcmrpi_defconfig | 1 +
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sound/soc/bcm/Kconfig | 7 ++
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sound/soc/bcm/Makefile | 3 +-
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sound/soc/bcm/dionaudio_loco.c | 121 +++++++++++++++++++++
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8 files changed, 178 insertions(+), 1 deletion(-)
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create mode 100644 arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts
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create mode 100644 sound/soc/bcm/dionaudio_loco.c
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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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@@ -20,6 +20,7 @@ dtbo-$(RPI_DT_OVERLAYS) += at86rf233.dtb
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dtbo-$(RPI_DT_OVERLAYS) += audioinjector-wm8731-audio.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += dht11.dtbo
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+dtbo-$(RPI_DT_OVERLAYS) += dionaudio-loco.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += dpi24.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += dwc-otg.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += dwc2.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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@@ -268,6 +268,12 @@ Params: gpiopin GPIO con
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(default 4)
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+Name: dionaudio-loco
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+Info: Configures the Dion Audio LOCO DAC-AMP
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+Load: dtoverlay=dionaudio-loco
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+Params: <None>
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+
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+
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Name: dpi24
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Info: Overlay for a generic 24-bit DPI display
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This uses GPIOs 0-27 (so no I2C, uart etc.), and activates the output
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts
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@@ -0,0 +1,39 @@
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+// Definitions for Dion Audio LOCO DAC-AMP
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+
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+/*
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+ * PCM5242 DAC (in hardware mode) and TPA3118 AMP.
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+ */
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+
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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,bcm2708";
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+
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+ fragment@0 {
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+ target = <&i2s>;
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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-path = "/";
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+ __overlay__ {
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+ pcm5102a-codec {
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+ #sound-dai-cells = <0>;
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+ compatible = "ti,pcm5102a";
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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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+ __overlay__ {
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+ compatible = "dionaudio,loco-pcm5242-tpa3118";
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+ i2s-controller = <&i2s>;
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+ status = "okay";
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+ };
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+ };
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+};
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--- a/arch/arm/configs/bcm2709_defconfig
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+++ b/arch/arm/configs/bcm2709_defconfig
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@@ -870,6 +870,7 @@ CONFIG_SND_BCM2708_SOC_RASPIDAC3=m
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CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m
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CONFIG_SND_DIGIDAC1_SOUNDCARD=m
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CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m
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+CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m
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CONFIG_SND_SOC_ADAU1701=m
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CONFIG_SND_SOC_WM8804_I2C=m
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CONFIG_SND_SIMPLE_CARD=m
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--- a/arch/arm/configs/bcmrpi_defconfig
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+++ b/arch/arm/configs/bcmrpi_defconfig
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@@ -862,6 +862,7 @@ CONFIG_SND_BCM2708_SOC_RASPIDAC3=m
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CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m
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CONFIG_SND_DIGIDAC1_SOUNDCARD=m
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CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m
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+CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m
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CONFIG_SND_SOC_ADAU1701=m
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CONFIG_SND_SOC_WM8804_I2C=m
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CONFIG_SND_SIMPLE_CARD=m
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--- a/sound/soc/bcm/Kconfig
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+++ b/sound/soc/bcm/Kconfig
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@@ -107,3 +107,10 @@ config SND_DIGIDAC1_SOUNDCARD
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select SND_SOC_WM8741
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help
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Say Y or M if you want to add support for Red Rocks Audio DigiDAC1 board.
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+
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+config SND_BCM2708_SOC_DIONAUDIO_LOCO
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+ tristate "Support for Dion Audio LOCO DAC-AMP"
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+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
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+ select SND_SOC_PCM5102a
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+ help
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+ Say Y or M if you want to add support for Dion Audio LOCO.
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--- a/sound/soc/bcm/Makefile
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+++ b/sound/soc/bcm/Makefile
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@@ -18,6 +18,7 @@ snd-soc-iqaudio-digi-objs := iqaudio_dig
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snd-soc-raspidac3-objs := raspidac3.o
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snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o
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snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o
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+snd-soc-dionaudio-loco-objs := dionaudio_loco.o
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obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o
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obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o
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@@ -33,4 +34,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DIG
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obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o
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obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o
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obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o
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-
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+obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o
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--- /dev/null
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+++ b/sound/soc/bcm/dionaudio_loco.c
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@@ -0,0 +1,121 @@
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+/*
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+ * ASoC Driver for Dion Audio LOCO DAC-AMP
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+ *
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+ * Author: Miquel Blauw <info@dionaudio.nl>
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+ * Copyright 2016
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+ *
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+ * Based on the software of the RPi-DAC writen by Florian Meier
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License
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+ * version 2 as published by the Free Software Foundation.
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+ *
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+ * This program is distributed in the hope that it will be useful, but
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+ * WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ * General Public License for more details.
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/platform_device.h>
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+
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+#include <sound/core.h>
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+#include <sound/pcm.h>
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+#include <sound/pcm_params.h>
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+#include <sound/soc.h>
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+#include <sound/jack.h>
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+
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+static int snd_rpi_dionaudio_loco_hw_params(
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+ struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
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+{
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+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
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+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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+
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+ unsigned int sample_bits =
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+ snd_pcm_format_physical_width(params_format(params));
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+
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+ return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2);
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+}
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+
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+/* machine stream operations */
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+static struct snd_soc_ops snd_rpi_dionaudio_loco_ops = {
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+ .hw_params = snd_rpi_dionaudio_loco_hw_params,
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+};
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+
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+static struct snd_soc_dai_link snd_rpi_dionaudio_loco_dai[] = {
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+{
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+ .name = "DionAudio LOCO",
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+ .stream_name = "DionAudio LOCO DAC-AMP",
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+ .cpu_dai_name = "bcm2708-i2s.0",
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+ .codec_dai_name = "pcm5102a-hifi",
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+ .platform_name = "bcm2708-i2s.0",
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+ .codec_name = "pcm5102a-codec",
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+ .dai_fmt = SND_SOC_DAIFMT_I2S |
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+ SND_SOC_DAIFMT_NB_NF |
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+ SND_SOC_DAIFMT_CBS_CFS,
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+ .ops = &snd_rpi_dionaudio_loco_ops,
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+},
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+};
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+
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+/* audio machine driver */
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+static struct snd_soc_card snd_rpi_dionaudio_loco = {
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+ .name = "snd_rpi_dionaudio_loco",
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+ .dai_link = snd_rpi_dionaudio_loco_dai,
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+ .num_links = ARRAY_SIZE(snd_rpi_dionaudio_loco_dai),
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+};
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+
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+static int snd_rpi_dionaudio_loco_probe(struct platform_device *pdev)
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+{
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+ struct device_node *np;
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+ int ret = 0;
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+
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+ snd_rpi_dionaudio_loco.dev = &pdev->dev;
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+
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+ np = pdev->dev.of_node;
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+ if (np) {
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+ struct snd_soc_dai_link *dai = &snd_rpi_dionaudio_loco_dai[0];
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+ struct device_node *i2s_np;
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+
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+ i2s_np = of_parse_phandle(np, "i2s-controller", 0);
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+ if (i2s_np) {
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+ dai->cpu_dai_name = NULL;
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+ dai->cpu_of_node = i2s_np;
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+ dai->platform_name = NULL;
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+ dai->platform_of_node = i2s_np;
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+ }
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+ }
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+
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+ ret = snd_soc_register_card(&snd_rpi_dionaudio_loco);
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+ if (ret)
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+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
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+ ret);
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+
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+ return ret;
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+}
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+
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+static int snd_rpi_dionaudio_loco_remove(struct platform_device *pdev)
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+{
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+ return snd_soc_unregister_card(&snd_rpi_dionaudio_loco);
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+}
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+
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+static const struct of_device_id snd_rpi_dionaudio_loco_of_match[] = {
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+ { .compatible = "dionaudio,loco-pcm5242-tpa3118", },
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+ { /* sentinel */ },
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+};
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+MODULE_DEVICE_TABLE(of, snd_rpi_dionaudio_loco_of_match);
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+
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+static struct platform_driver snd_rpi_dionaudio_loco_driver = {
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+ .driver = {
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+ .name = "snd-dionaudio-loco",
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+ .owner = THIS_MODULE,
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+ .of_match_table = snd_rpi_dionaudio_loco_of_match,
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+ },
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+ .probe = snd_rpi_dionaudio_loco_probe,
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+ .remove = snd_rpi_dionaudio_loco_remove,
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+};
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+
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+module_platform_driver(snd_rpi_dionaudio_loco_driver);
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+
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+MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>");
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+MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO");
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+MODULE_LICENSE("GPL v2");
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