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7d7aa2fd92
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Despite, since subtargets range from bcm2708 to bcm2711, it seems appropriate to use bcm27xx instead of bcm2708 (again, as already done for BOARDNAME). This also renames the packages brcm2708-userland and brcm2708-gpu-fw. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
132 lines
3.9 KiB
Diff
132 lines
3.9 KiB
Diff
From 234b6a3cfd5bc1fb341c01f8ac773956f5af42cd 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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sound/soc/bcm/dionaudio_loco.c | 115 +++++++++++++++++++++++++++++++++
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1 file changed, 115 insertions(+)
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create mode 100644 sound/soc/bcm/dionaudio_loco.c
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--- /dev/null
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+++ b/sound/soc/bcm/dionaudio_loco.c
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@@ -0,0 +1,115 @@
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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 = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco);
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+ if (ret && ret != -EPROBE_DEFER)
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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 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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+};
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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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