openwrt/upstream - upstream openwrt

	Commit message (Expand)	Author	Age	Files	Lines
*	bcm27xx: add linux 5.4 support	Álvaro Fernández Rojas	2020-02-29	1	-0/+427

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");