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Diffstat (limited to 'sys-kernel/boest-v5.0.15/raspberrypi/0077-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch')
-rw-r--r--sys-kernel/boest-v5.0.15/raspberrypi/0077-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch140
1 files changed, 140 insertions, 0 deletions
diff --git a/sys-kernel/boest-v5.0.15/raspberrypi/0077-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch b/sys-kernel/boest-v5.0.15/raspberrypi/0077-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch
new file mode 100644
index 00000000..3889d2c5
--- /dev/null
+++ b/sys-kernel/boest-v5.0.15/raspberrypi/0077-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch
@@ -0,0 +1,140 @@
+From 947a423b840481d0ae9fe6e53e3fac85d6b98caa Mon Sep 17 00:00:00 2001
+From: Miquel <miquelblauw@hotmail.com>
+Date: Fri, 24 Feb 2017 20:51:06 +0100
+Subject: [PATCH 077/194] sound: Support for Dion Audio LOCO-V2 DAC-AMP HAT
+
+Signed-off-by: Miquel Blauw <info@dionaudio.nl>
+
+ASoC: dionaudio_loco-v2: fix S24_LE format
+
+Remove set_bclk_ratio call so 24-bit data is transmitted in
+24 bclk cycles.
+
+Also remove hw_params and ops as they are no longer needed.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ sound/soc/bcm/dionaudio_loco-v2.c | 115 ++++++++++++++++++++++++++++++
+ 1 file changed, 115 insertions(+)
+
+diff --git a/sound/soc/bcm/dionaudio_loco-v2.c b/sound/soc/bcm/dionaudio_loco-v2.c
+new file mode 100644
+index 000000000000..192cbfd7baca
+--- /dev/null
++++ b/sound/soc/bcm/dionaudio_loco-v2.c
+@@ -0,0 +1,115 @@
++/*
++ * ASoC Driver for Dion Audio LOCO-V2 DAC-AMP
++ *
++ * Author: Miquel Blauw <info@dionaudio.nl>
++ * Copyright 2017
++ *
++ * 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 bool digital_gain_0db_limit = true;
++
++static int snd_rpi_dionaudio_loco_v2_init(struct snd_soc_pcm_runtime *rtd)
++{
++ if (digital_gain_0db_limit) {
++ int ret;
++ struct snd_soc_card *card = rtd->card;
++
++ ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207);
++ if (ret < 0)
++ dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++ }
++
++ return 0;
++}
++
++static struct snd_soc_dai_link snd_rpi_dionaudio_loco_v2_dai[] = {
++{
++ .name = "DionAudio LOCO-V2",
++ .stream_name = "DionAudio LOCO-V2 DAC-AMP",
++ .cpu_dai_name = "bcm2708-i2s.0",
++ .codec_dai_name = "pcm512x-hifi",
++ .platform_name = "bcm2708-i2s.0",
++ .codec_name = "pcm512x.1-004d",
++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBS_CFS,
++ .init = snd_rpi_dionaudio_loco_v2_init,
++},};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_dionaudio_loco_v2 = {
++ .name = "Dion Audio LOCO-V2",
++ .dai_link = snd_rpi_dionaudio_loco_v2_dai,
++ .num_links = ARRAY_SIZE(snd_rpi_dionaudio_loco_v2_dai),
++};
++
++static int snd_rpi_dionaudio_loco_v2_probe(struct platform_device *pdev)
++{
++ int ret = 0;
++
++ snd_rpi_dionaudio_loco_v2.dev = &pdev->dev;
++
++ if (pdev->dev.of_node) {
++ struct device_node *i2s_node;
++ struct snd_soc_dai_link *dai =
++ &snd_rpi_dionaudio_loco_v2_dai[0];
++
++ i2s_node = of_parse_phandle(pdev->dev.of_node,
++ "i2s-controller", 0);
++ if (i2s_node) {
++ dai->cpu_dai_name = NULL;
++ dai->cpu_of_node = i2s_node;
++ dai->platform_name = NULL;
++ dai->platform_of_node = i2s_node;
++ }
++
++ digital_gain_0db_limit = !of_property_read_bool(
++ pdev->dev.of_node, "dionaudio,24db_digital_gain");
++ }
++
++ ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco_v2);
++ if (ret)
++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++ ret);
++
++ return ret;
++}
++
++static const struct of_device_id dionaudio_of_match[] = {
++ { .compatible = "dionaudio,dionaudio-loco-v2", },
++ {},
++};
++MODULE_DEVICE_TABLE(of, dionaudio_of_match);
++
++static struct platform_driver snd_rpi_dionaudio_loco_v2_driver = {
++ .driver = {
++ .name = "snd-rpi-dionaudio-loco-v2",
++ .owner = THIS_MODULE,
++ .of_match_table = dionaudio_of_match,
++ },
++ .probe = snd_rpi_dionaudio_loco_v2_probe,
++};
++
++module_platform_driver(snd_rpi_dionaudio_loco_v2_driver);
++
++MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>");
++MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO-V2");
++MODULE_LICENSE("GPL v2");