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-rw-r--r--target/linux/brcm2708/patches-4.4/0064-ASoC-Add-support-for-Rpi-DAC.patch275
1 files changed, 275 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0064-ASoC-Add-support-for-Rpi-DAC.patch b/target/linux/brcm2708/patches-4.4/0064-ASoC-Add-support-for-Rpi-DAC.patch
new file mode 100644
index 0000000000..5c212ce6a0
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0064-ASoC-Add-support-for-Rpi-DAC.patch
@@ -0,0 +1,275 @@
+From 95bf71f0e826b97bad98f350e2fee6ba515a38cf Mon Sep 17 00:00:00 2001
+From: Florian Meier <florian.meier@koalo.de>
+Date: Fri, 22 Nov 2013 19:21:34 +0100
+Subject: [PATCH 064/232] ASoC: Add support for Rpi-DAC
+
+---
+ sound/soc/bcm/Kconfig | 7 +++
+ sound/soc/bcm/Makefile | 2 +
+ sound/soc/bcm/rpi-dac.c | 118 ++++++++++++++++++++++++++++++++++++++++++++
+ sound/soc/codecs/Kconfig | 9 ++++
+ sound/soc/codecs/Makefile | 2 +
+ sound/soc/codecs/pcm1794a.c | 69 ++++++++++++++++++++++++++
+ 6 files changed, 207 insertions(+)
+ create mode 100644 sound/soc/bcm/rpi-dac.c
+ create mode 100644 sound/soc/codecs/pcm1794a.c
+
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -14,3 +14,10 @@ config SND_BCM2708_SOC_HIFIBERRY_DAC
+ select SND_SOC_PCM5102A
+ help
+ Say Y or M if you want to add support for HifiBerry DAC.
++
++config SND_BCM2708_SOC_RPI_DAC
++ tristate "Support for RPi-DAC"
++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++ select SND_SOC_PCM1794A
++ help
++ Say Y or M if you want to add support for RPi-DAC.
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -5,5 +5,7 @@ obj-$(CONFIG_SND_BCM2835_SOC_I2S) += snd
+
+ # BCM2708 Machine Support
+ snd-soc-hifiberry-dac-objs := hifiberry_dac.o
++snd-soc-rpi-dac-objs := rpi-dac.o
+
+ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o
++obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o
+--- /dev/null
++++ b/sound/soc/bcm/rpi-dac.c
+@@ -0,0 +1,118 @@
++/*
++ * ASoC Driver for RPi-DAC.
++ *
++ * Author: Florian Meier <florian.meier@koalo.de>
++ * Copyright 2013
++ *
++ * 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_rpi_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++ return 0;
++}
++
++static int snd_rpi_rpi_dac_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;
++
++ return snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_rpi_dac_ops = {
++ .hw_params = snd_rpi_rpi_dac_hw_params,
++};
++
++static struct snd_soc_dai_link snd_rpi_rpi_dac_dai[] = {
++{
++ .name = "RPi-DAC",
++ .stream_name = "RPi-DAC HiFi",
++ .cpu_dai_name = "bcm2708-i2s.0",
++ .codec_dai_name = "pcm1794a-hifi",
++ .platform_name = "bcm2708-i2s.0",
++ .codec_name = "pcm1794a-codec",
++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBS_CFS,
++ .ops = &snd_rpi_rpi_dac_ops,
++ .init = snd_rpi_rpi_dac_init,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_rpi_dac = {
++ .name = "snd_rpi_rpi_dac",
++ .dai_link = snd_rpi_rpi_dac_dai,
++ .num_links = ARRAY_SIZE(snd_rpi_rpi_dac_dai),
++};
++
++static int snd_rpi_rpi_dac_probe(struct platform_device *pdev)
++{
++ int ret = 0;
++
++ snd_rpi_rpi_dac.dev = &pdev->dev;
++
++ if (pdev->dev.of_node) {
++ struct device_node *i2s_node;
++ struct snd_soc_dai_link *dai = &snd_rpi_rpi_dac_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;
++ }
++ }
++
++ ret = snd_soc_register_card(&snd_rpi_rpi_dac);
++ if (ret)
++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
++
++ return ret;
++}
++
++static int snd_rpi_rpi_dac_remove(struct platform_device *pdev)
++{
++ return snd_soc_unregister_card(&snd_rpi_rpi_dac);
++}
++
++static const struct of_device_id snd_rpi_rpi_dac_of_match[] = {
++ { .compatible = "rpi,rpi-dac", },
++ {},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_rpi_dac_of_match);
++
++static struct platform_driver snd_rpi_rpi_dac_driver = {
++ .driver = {
++ .name = "snd-rpi-dac",
++ .owner = THIS_MODULE,
++ .of_match_table = snd_rpi_rpi_dac_of_match,
++ },
++ .probe = snd_rpi_rpi_dac_probe,
++ .remove = snd_rpi_rpi_dac_remove,
++};
++
++module_platform_driver(snd_rpi_rpi_dac_driver);
++
++MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
++MODULE_DESCRIPTION("ASoC Driver for RPi-DAC");
++MODULE_LICENSE("GPL v2");
+--- a/sound/soc/codecs/Kconfig
++++ b/sound/soc/codecs/Kconfig
+@@ -90,6 +90,7 @@ config SND_SOC_ALL_CODECS
+ select SND_SOC_RT286 if I2C
+ select SND_SOC_RT298 if I2C
+ select SND_SOC_PCM5102A if I2C
++ select SND_SOC_PCM1794A if I2C
+ select SND_SOC_RT5631 if I2C
+ select SND_SOC_RT5640 if I2C
+ select SND_SOC_RT5645 if I2C
+@@ -550,6 +551,14 @@ config SND_SOC_RT298
+ tristate
+ depends on I2C
+
++config SND_SOC_RT298
++ tristate
++ depends on I2C
++
++config SND_SOC_PCM1794A
++ tristate
++ depends on I2C
++
+ config SND_SOC_PCM5102A
+ tristate
+ depends on I2C
+--- a/sound/soc/codecs/Makefile
++++ b/sound/soc/codecs/Makefile
+@@ -85,6 +85,7 @@ snd-soc-rl6231-objs := rl6231.o
+ snd-soc-rl6347a-objs := rl6347a.o
+ snd-soc-rt286-objs := rt286.o
+ snd-soc-rt298-objs := rt298.o
++snd-soc-pcm1794a-objs := pcm1794a.o
+ snd-soc-pcm5102a-objs := pcm5102a.o
+ snd-soc-rt5631-objs := rt5631.o
+ snd-soc-rt5640-objs := rt5640.o
+@@ -281,6 +282,7 @@ obj-$(CONFIG_SND_SOC_RL6231) += snd-soc-
+ obj-$(CONFIG_SND_SOC_RL6347A) += snd-soc-rl6347a.o
+ obj-$(CONFIG_SND_SOC_RT286) += snd-soc-rt286.o
+ obj-$(CONFIG_SND_SOC_RT298) += snd-soc-rt298.o
++obj-$(CONFIG_SND_SOC_PCM1794A) += snd-soc-pcm1794a.o
+ obj-$(CONFIG_SND_SOC_PCM5102A) += snd-soc-pcm5102a.o
+ obj-$(CONFIG_SND_SOC_RT5631) += snd-soc-rt5631.o
+ obj-$(CONFIG_SND_SOC_RT5640) += snd-soc-rt5640.o
+--- /dev/null
++++ b/sound/soc/codecs/pcm1794a.c
+@@ -0,0 +1,69 @@
++/*
++ * Driver for the PCM1794A codec
++ *
++ * Author: Florian Meier <florian.meier@koalo.de>
++ * Copyright 2013
++ *
++ * 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/init.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <sound/soc.h>
++
++static struct snd_soc_dai_driver pcm1794a_dai = {
++ .name = "pcm1794a-hifi",
++ .playback = {
++ .channels_min = 2,
++ .channels_max = 2,
++ .rates = SNDRV_PCM_RATE_8000_192000,
++ .formats = SNDRV_PCM_FMTBIT_S16_LE |
++ SNDRV_PCM_FMTBIT_S24_LE
++ },
++};
++
++static struct snd_soc_codec_driver soc_codec_dev_pcm1794a;
++
++static int pcm1794a_probe(struct platform_device *pdev)
++{
++ return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_pcm1794a,
++ &pcm1794a_dai, 1);
++}
++
++static int pcm1794a_remove(struct platform_device *pdev)
++{
++ snd_soc_unregister_codec(&pdev->dev);
++ return 0;
++}
++
++static const struct of_device_id pcm1794a_of_match[] = {
++ { .compatible = "ti,pcm1794a", },
++ { }
++};
++MODULE_DEVICE_TABLE(of, pcm1794a_of_match);
++
++static struct platform_driver pcm1794a_codec_driver = {
++ .probe = pcm1794a_probe,
++ .remove = pcm1794a_remove,
++ .driver = {
++ .name = "pcm1794a-codec",
++ .owner = THIS_MODULE,
++ .of_match_table = of_match_ptr(pcm1794a_of_match),
++ },
++};
++
++module_platform_driver(pcm1794a_codec_driver);
++
++MODULE_DESCRIPTION("ASoC PCM1794A codec driver");
++MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
++MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 22:29:46 +0000