brcm2708: update to latest patches from RPi Foundation

[openwrt/staging/chunkeey.git] / target / linux / brcm2708 / patches-4.19 / 950-0073-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0073-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch b/target/linux/brcm2708/patches-4.19/950-0073-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch
new file mode 100644 (file)
index 0000000..de72049
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0073-Add-support-for-Dion-Audio-LOCO-DAC-AMP-HAT.patch
@@ -0,0 +1,131 @@
+From 234b6a3cfd5bc1fb341c01f8ac773956f5af42cd 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>
+---
+ sound/soc/bcm/dionaudio_loco.c | 115 +++++++++++++++++++++++++++++++++
+ 1 file changed, 115 insertions(+)
+ create mode 100644 sound/soc/bcm/dionaudio_loco.c
+
+--- /dev/null
++++ b/sound/soc/bcm/dionaudio_loco.c
+@@ -0,0 +1,115 @@
++/*
++ * 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 = 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");