diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0067-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0067-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0067-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch b/target/linux/bcm27xx/patches-5.4/950-0067-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch new file mode 100644 index 0000000000..ce6c1fa2e0 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0067-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch @@ -0,0 +1,137 @@ +From 12b182ee61ee6654c480f6643fcf818c6fe43e33 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> + +ASoC: dionaudio_loco: use modern dai_link style + +Signed-off-by: Hui Wang <hui.wang@canonical.com> +--- + sound/soc/bcm/dionaudio_loco.c | 117 +++++++++++++++++++++++++++++++++ + 1 file changed, 117 insertions(+) + create mode 100644 sound/soc/bcm/dionaudio_loco.c + +--- /dev/null ++++ b/sound/soc/bcm/dionaudio_loco.c +@@ -0,0 +1,117 @@ ++/* ++ * 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, ++}; ++ ++SND_SOC_DAILINK_DEFS(dionaudio_loco, ++ DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")), ++ DAILINK_COMP_ARRAY(COMP_CODEC("pcm5102a-codec", "pcm5102a-hifi")), ++ DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0"))); ++ ++static struct snd_soc_dai_link snd_rpi_dionaudio_loco_dai[] = { ++{ ++ .name = "DionAudio LOCO", ++ .stream_name = "DionAudio LOCO DAC-AMP", ++ .dai_fmt = SND_SOC_DAIFMT_I2S | ++ SND_SOC_DAIFMT_NB_NF | ++ SND_SOC_DAIFMT_CBS_CFS, ++ .ops = &snd_rpi_dionaudio_loco_ops, ++ SND_SOC_DAILINK_REG(dionaudio_loco), ++}, ++}; ++ ++/* 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->cpus->dai_name = NULL; ++ dai->cpus->of_node = i2s_np; ++ dai->platforms->name = NULL; ++ dai->platforms->of_node = i2s_np; ++ } ++ } ++ ++ ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco); ++ if (ret && ret != -EPROBE_DEFER) ++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ++ ret); ++ ++ return ret; ++} ++ ++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, ++}; ++ ++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"); |