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Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0422-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0422-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch261
1 files changed, 261 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0422-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch b/target/linux/brcm2708/patches-4.4/0422-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch
new file mode 100644
index 0000000000..d51d4f9d3d
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0422-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch
@@ -0,0 +1,261 @@
+From 91bb6ae349039ab6c1336a463d3c3d26e4df9fb0 Mon Sep 17 00:00:00 2001
+From: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+Date: Sat, 2 Jul 2016 16:26:19 +0100
+Subject: [PATCH] Add support for Dion Audio LOCO DAC-AMP HAT
+
+Using dedicated machine driver and pcm5102a codec driver.
+
+Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
+---
+ arch/arm/boot/dts/overlays/Makefile | 1 +
+ arch/arm/boot/dts/overlays/README | 6 +
+ .../boot/dts/overlays/dionaudio-loco-overlay.dts | 39 +++++++
+ arch/arm/configs/bcm2709_defconfig | 1 +
+ arch/arm/configs/bcmrpi_defconfig | 1 +
+ sound/soc/bcm/Kconfig | 7 ++
+ sound/soc/bcm/Makefile | 3 +-
+ sound/soc/bcm/dionaudio_loco.c | 121 +++++++++++++++++++++
+ 8 files changed, 178 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts
+ create mode 100644 sound/soc/bcm/dionaudio_loco.c
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -20,6 +20,7 @@ dtbo-$(RPI_DT_OVERLAYS) += at86rf233.dtb
+ dtbo-$(RPI_DT_OVERLAYS) += audioinjector-wm8731-audio.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += dht11.dtbo
++dtbo-$(RPI_DT_OVERLAYS) += dionaudio-loco.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += dpi24.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += dwc-otg.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += dwc2.dtbo
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -268,6 +268,12 @@ Params: gpiopin GPIO con
+ (default 4)
+
+
++Name: dionaudio-loco
++Info: Configures the Dion Audio LOCO DAC-AMP
++Load: dtoverlay=dionaudio-loco
++Params: <None>
++
++
+ Name: dpi24
+ Info: Overlay for a generic 24-bit DPI display
+ This uses GPIOs 0-27 (so no I2C, uart etc.), and activates the output
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/dionaudio-loco-overlay.dts
+@@ -0,0 +1,39 @@
++// Definitions for Dion Audio LOCO DAC-AMP
++
++/*
++ * PCM5242 DAC (in hardware mode) and TPA3118 AMP.
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++ compatible = "brcm,bcm2708";
++
++ fragment@0 {
++ target = <&i2s>;
++ __overlay__ {
++ status = "okay";
++ };
++ };
++
++ fragment@1 {
++ target-path = "/";
++ __overlay__ {
++ pcm5102a-codec {
++ #sound-dai-cells = <0>;
++ compatible = "ti,pcm5102a";
++ status = "okay";
++ };
++ };
++ };
++
++ fragment@2 {
++ target = <&sound>;
++ __overlay__ {
++ compatible = "dionaudio,loco-pcm5242-tpa3118";
++ i2s-controller = <&i2s>;
++ status = "okay";
++ };
++ };
++};
+--- a/arch/arm/configs/bcm2709_defconfig
++++ b/arch/arm/configs/bcm2709_defconfig
+@@ -870,6 +870,7 @@ CONFIG_SND_BCM2708_SOC_RASPIDAC3=m
+ CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m
+ CONFIG_SND_DIGIDAC1_SOUNDCARD=m
+ CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m
++CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m
+ CONFIG_SND_SOC_ADAU1701=m
+ CONFIG_SND_SOC_WM8804_I2C=m
+ CONFIG_SND_SIMPLE_CARD=m
+--- a/arch/arm/configs/bcmrpi_defconfig
++++ b/arch/arm/configs/bcmrpi_defconfig
+@@ -862,6 +862,7 @@ CONFIG_SND_BCM2708_SOC_RASPIDAC3=m
+ CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD=m
+ CONFIG_SND_DIGIDAC1_SOUNDCARD=m
+ CONFIG_SND_BCM2708_SOC_ADAU1977_ADC=m
++CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m
+ CONFIG_SND_SOC_ADAU1701=m
+ CONFIG_SND_SOC_WM8804_I2C=m
+ CONFIG_SND_SIMPLE_CARD=m
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -107,3 +107,10 @@ config SND_DIGIDAC1_SOUNDCARD
+ select SND_SOC_WM8741
+ help
+ Say Y or M if you want to add support for Red Rocks Audio DigiDAC1 board.
++
++config SND_BCM2708_SOC_DIONAUDIO_LOCO
++ tristate "Support for Dion Audio LOCO DAC-AMP"
++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++ select SND_SOC_PCM5102a
++ help
++ Say Y or M if you want to add support for Dion Audio LOCO.
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -18,6 +18,7 @@ snd-soc-iqaudio-digi-objs := iqaudio_dig
+ snd-soc-raspidac3-objs := raspidac3.o
+ snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o
+ snd-soc-digidac1-soundcard-objs := digidac1-soundcard.o
++snd-soc-dionaudio-loco-objs := dionaudio_loco.o
+
+ obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o
+ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o
+@@ -33,4 +34,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DIG
+ obj-$(CONFIG_SND_BCM2708_SOC_RASPIDAC3) += snd-soc-raspidac3.o
+ obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o
+ obj-$(CONFIG_SND_DIGIDAC1_SOUNDCARD) += snd-soc-digidac1-soundcard.o
+-
++obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO) += snd-soc-dionaudio-loco.o
+--- /dev/null
++++ b/sound/soc/bcm/dionaudio_loco.c
+@@ -0,0 +1,121 @@
++/*
++ * ASoC Driver for Dion Audio LOCO DAC-AMP
++ *
++ * Author: Miquel Blauw <info@dionaudio.nl>
++ * Copyright 2016
++ *
++ * Based on the software of the RPi-DAC writen by Florian Meier
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++static int snd_rpi_dionaudio_loco_hw_params(
++ struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
++{
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
++
++ unsigned int sample_bits =
++ snd_pcm_format_physical_width(params_format(params));
++
++ return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_dionaudio_loco_ops = {
++ .hw_params = snd_rpi_dionaudio_loco_hw_params,
++};
++
++static struct snd_soc_dai_link snd_rpi_dionaudio_loco_dai[] = {
++{
++ .name = "DionAudio LOCO",
++ .stream_name = "DionAudio LOCO DAC-AMP",
++ .cpu_dai_name = "bcm2708-i2s.0",
++ .codec_dai_name = "pcm5102a-hifi",
++ .platform_name = "bcm2708-i2s.0",
++ .codec_name = "pcm5102a-codec",
++ .dai_fmt = SND_SOC_DAIFMT_I2S |
++ SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBS_CFS,
++ .ops = &snd_rpi_dionaudio_loco_ops,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_dionaudio_loco = {
++ .name = "snd_rpi_dionaudio_loco",
++ .dai_link = snd_rpi_dionaudio_loco_dai,
++ .num_links = ARRAY_SIZE(snd_rpi_dionaudio_loco_dai),
++};
++
++static int snd_rpi_dionaudio_loco_probe(struct platform_device *pdev)
++{
++ struct device_node *np;
++ int ret = 0;
++
++ snd_rpi_dionaudio_loco.dev = &pdev->dev;
++
++ np = pdev->dev.of_node;
++ if (np) {
++ struct snd_soc_dai_link *dai = &snd_rpi_dionaudio_loco_dai[0];
++ struct device_node *i2s_np;
++
++ i2s_np = of_parse_phandle(np, "i2s-controller", 0);
++ if (i2s_np) {
++ dai->cpu_dai_name = NULL;
++ dai->cpu_of_node = i2s_np;
++ dai->platform_name = NULL;
++ dai->platform_of_node = i2s_np;
++ }
++ }
++
++ ret = snd_soc_register_card(&snd_rpi_dionaudio_loco);
++ if (ret)
++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++ ret);
++
++ return ret;
++}
++
++static int snd_rpi_dionaudio_loco_remove(struct platform_device *pdev)
++{
++ return snd_soc_unregister_card(&snd_rpi_dionaudio_loco);
++}
++
++static const struct of_device_id snd_rpi_dionaudio_loco_of_match[] = {
++ { .compatible = "dionaudio,loco-pcm5242-tpa3118", },
++ { /* sentinel */ },
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_dionaudio_loco_of_match);
++
++static struct platform_driver snd_rpi_dionaudio_loco_driver = {
++ .driver = {
++ .name = "snd-dionaudio-loco",
++ .owner = THIS_MODULE,
++ .of_match_table = snd_rpi_dionaudio_loco_of_match,
++ },
++ .probe = snd_rpi_dionaudio_loco_probe,
++ .remove = snd_rpi_dionaudio_loco_remove,
++};
++
++module_platform_driver(snd_rpi_dionaudio_loco_driver);
++
++MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>");
++MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO");
++MODULE_LICENSE("GPL v2");
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