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-rw-r--r--target/linux/brcm2708/patches-4.4/0241-Add-Support-for-BoomBerry-Audio-boards.patch605
1 files changed, 605 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0241-Add-Support-for-BoomBerry-Audio-boards.patch b/target/linux/brcm2708/patches-4.4/0241-Add-Support-for-BoomBerry-Audio-boards.patch
new file mode 100644
index 0000000000..cd3c41e621
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0241-Add-Support-for-BoomBerry-Audio-boards.patch
@@ -0,0 +1,605 @@
+From e064c9d7ec3c51b79c6fdb7f1ff3a07b246ea774 Mon Sep 17 00:00:00 2001
+From: Aaron Shaw <shawaj@gmail.com>
+Date: Thu, 7 Apr 2016 21:26:21 +0100
+Subject: [PATCH 241/304] Add Support for BoomBerry Audio boards
+
+---
+ arch/arm/boot/dts/overlays/Makefile | 2 +
+ arch/arm/boot/dts/overlays/README | 26 +++
+ .../boot/dts/overlays/boomberry-dac-overlay.dts | 43 +++++
+ .../boot/dts/overlays/boomberry-digi-overlay.dts | 39 ++++
+ arch/arm/configs/bcm2709_defconfig | 2 +
+ arch/arm/configs/bcmrpi_defconfig | 2 +
+ sound/soc/bcm/Kconfig | 14 ++
+ sound/soc/bcm/Makefile | 4 +
+ sound/soc/bcm/boomberry-dac.c | 163 ++++++++++++++++
+ sound/soc/bcm/boomberry-digi.c | 215 +++++++++++++++++++++
+ 10 files changed, 510 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/boomberry-dac-overlay.dts
+ create mode 100644 arch/arm/boot/dts/overlays/boomberry-digi-overlay.dts
+ create mode 100644 sound/soc/bcm/boomberry-dac.c
+ create mode 100644 sound/soc/bcm/boomberry-digi.c
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -16,6 +16,8 @@ dtbo-$(RPI_DT_OVERLAYS) += ads7846.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += akkordion-iqdacplus.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += at86rf233.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor.dtbo
++dtbo-$(RPI_DT_OVERLAYS) += boomberry-dac.dtbo
++dtbo-$(RPI_DT_OVERLAYS) += boomberry-digi.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += dpi24.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += dwc2.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += dwc-otg.dtbo
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -225,6 +225,32 @@ Load: dtoverlay=bmp085_i2c-sensor
+ Params: <None>
+
+
++Name: boomberry-dac
++Info: Configures the BoomBerry DAC HAT, Amp HAT, DAC Zero and Amp Zero audio
++ cards
++Load: dtoverlay=boomberry-dac,<param>=<val>
++Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec
++ Digital volume control. Enable with
++ "dtoverlay=boomberry-dac,24db_digital_gain"
++ (The default behaviour is that the Digital
++ volume control is limited to a maximum of
++ 0dB. ie. it can attenuate but not provide
++ gain. For most users, this will be desired
++ as it will prevent clipping. By appending
++ the 24dB_digital_gain parameter, the Digital
++ volume control will allow up to 24dB of
++ gain. If this parameter is enabled, it is the
++ responsibility of the user to ensure that
++ the Digital volume control is set to a value
++ that does not result in clipping/distortion!)
++
++
++Name: boomberry-digi
++Info: Configures the BoomBerry Digi HAT and Digi Zero audio cards
++Load: dtoverlay=boomberry-digi
++Params: <None>
++
++
+ Name: dht11
+ Info: Overlay for the DHT11/DHT21/DHT22 humidity/temperature sensors
+ Also sometimes found with the part number(s) AM230x.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/boomberry-dac-overlay.dts
+@@ -0,0 +1,43 @@
++// Definitions for BoomBerry DAC
++/dts-v1/;
++/plugin/;
++
++/ {
++ compatible = "brcm,bcm2708";
++
++ fragment@0 {
++ target = <&sound>;
++ frag0: __overlay__ {
++ compatible = "boomberry,boomberry-dac";
++ i2s-controller = <&i2s>;
++ status = "okay";
++ };
++ };
++
++ fragment@1 {
++ target = <&i2s>;
++ __overlay__ {
++ status = "okay";
++ };
++ };
++
++ fragment@2 {
++ target = <&i2c1>;
++ __overlay__ {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ status = "okay";
++
++ pcm5122@4d {
++ #sound-dai-cells = <0>;
++ compatible = "ti,pcm5122";
++ reg = <0x4d>;
++ status = "okay";
++ };
++ };
++ };
++
++ __overrides__ {
++ 24db_digital_gain = <&frag0>,"boomberry,24db_digital_gain?";
++ };
++};
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/boomberry-digi-overlay.dts
+@@ -0,0 +1,39 @@
++// Definitions for BoomBerry Digi
++/dts-v1/;
++/plugin/;
++
++/ {
++ compatible = "brcm,bcm2708";
++
++ fragment@0 {
++ target = <&sound>;
++ __overlay__ {
++ compatible = "boomberry,boomberry-digi";
++ i2s-controller = <&i2s>;
++ status = "okay";
++ };
++ };
++
++ fragment@1 {
++ target = <&i2s>;
++ __overlay__ {
++ status = "okay";
++ };
++ };
++
++ fragment@2 {
++ target = <&i2c1>;
++ __overlay__ {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ status = "okay";
++
++ wm8804@3b {
++ #sound-dai-cells = <0>;
++ compatible = "wlf,wm8804";
++ reg = <0x3b>;
++ status = "okay";
++ };
++ };
++ };
++};
+--- a/arch/arm/configs/bcm2709_defconfig
++++ b/arch/arm/configs/bcm2709_defconfig
+@@ -853,6 +853,8 @@ CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m
+ CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m
+ CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m
+ CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m
++CONFIG_SND_BCM2708_SOC_BOOMBERRY_DAC=m
++CONFIG_SNG_BCM2708_SOC_BOOMBERRY_DIGI=m
+ CONFIG_SND_BCM2708_SOC_RPI_DAC=m
+ CONFIG_SND_BCM2708_SOC_RPI_PROTO=m
+ CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m
+--- a/arch/arm/configs/bcmrpi_defconfig
++++ b/arch/arm/configs/bcmrpi_defconfig
+@@ -845,6 +845,8 @@ CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m
+ CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m
+ CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m
+ CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m
++CONFIG_SND_BCM2708_SOC_BOOMBERRY_DAC=m
++CONFIG_SND_BCM2708_SOC_BOOMBERRY_DIGI=m
+ CONFIG_SND_BCM2708_SOC_RPI_DAC=m
+ CONFIG_SND_BCM2708_SOC_RPI_PROTO=m
+ CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -50,6 +50,20 @@ config SND_BCM2708_SOC_RPI_PROTO
+ help
+ Say Y or M if you want to add support for Audio Codec Board PROTO (WM8731).
+
++config SND_BCM2708_SOC_BOOMBERRY_DAC
++ tristate "Support for BoomBerry DAC"
++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++ select SND_SOC_PCM512x
++ help
++ Say Y or M if you want to add support for BoomBerry DAC.
++
++config SND_BCM2708_SOC_BOOMBERRY_DIGI
++ tristate "Support for BoomBerry Digi"
++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++ select SND_SOC_WM8804
++ help
++ Say Y or M if you want to add support for BoomBerry Digi.
++
+ config SND_BCM2708_SOC_IQAUDIO_DAC
+ tristate "Support for IQaudIO-DAC"
+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -8,6 +8,8 @@ snd-soc-hifiberry-dac-objs := hifiberry_
+ snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o
+ snd-soc-hifiberry-digi-objs := hifiberry_digi.o
+ snd-soc-hifiberry-amp-objs := hifiberry_amp.o
++snd-soc-boomberry-dac-objs := boomberry-dac.o
++snd-soc-boomberry-digi-objs := boomberry-digi.o
+ snd-soc-rpi-dac-objs := rpi-dac.o
+ snd-soc-rpi-proto-objs := rpi-proto.o
+ snd-soc-iqaudio-dac-objs := iqaudio-dac.o
+@@ -17,6 +19,8 @@ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_D
+ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
+ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o
+ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o
++obj-$(CONFIG_SND_BCM2708_SOC_BOOMBERRY_DAC) += snd-soc-boomberry-dac.o
++obj-$(CONFIG_SND_BCM2708_SOC_BOOMBERRY_DIGI) += snd-soc-boomberry-digi.o
+ obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o
+ obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o
+ obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o
+--- /dev/null
++++ b/sound/soc/bcm/boomberry-dac.c
+@@ -0,0 +1,163 @@
++/*
++ * ASoC Driver for BoomBerry DAC Raspberry Pi HAT Sound Card
++ *
++ * Author: Milan Neskovic
++ * Copyright 2016
++ * based on code by Daniel Matuschek <info@crazy-audio.com>
++ * based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * 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>
++
++#include "../codecs/pcm512x.h"
++
++static bool digital_gain_0db_limit = true;
++
++static int snd_rpi_boomberry_dac_init(struct snd_soc_pcm_runtime *rtd)
++{
++ struct snd_soc_codec *codec = rtd->codec;
++ snd_soc_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08);
++ snd_soc_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02);
++ snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x08);
++
++ if (digital_gain_0db_limit)
++ {
++ int ret;
++ struct snd_soc_card *card = rtd->card;
++ struct snd_soc_codec *codec = rtd->codec;
++
++ ret = snd_soc_limit_volume(codec, "Digital Playback Volume", 207);
++ if (ret < 0)
++ dev_warn(card->dev, "Failed to set volume limit: %d\n", ret);
++ }
++
++ return 0;
++}
++
++static int snd_rpi_boomberry_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, 64);*/
++ unsigned int sample_bits =
++ snd_pcm_format_physical_width(params_format(params));
++ return snd_soc_dai_set_bclk_ratio(cpu_dai, sample_bits * 2);
++}
++
++static int snd_rpi_boomberry_dac_startup(struct snd_pcm_substream *substream) {
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct snd_soc_codec *codec = rtd->codec;
++ snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x08);
++ return 0;
++}
++
++static void snd_rpi_boomberry_dac_shutdown(struct snd_pcm_substream *substream) {
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct snd_soc_codec *codec = rtd->codec;
++ snd_soc_update_bits(codec, PCM512x_GPIO_CONTROL_1, 0x08,0x00);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_boomberry_dac_ops = {
++ .hw_params = snd_rpi_boomberry_dac_hw_params,
++ .startup = snd_rpi_boomberry_dac_startup,
++ .shutdown = snd_rpi_boomberry_dac_shutdown,
++};
++
++static struct snd_soc_dai_link snd_rpi_boomberry_dac_dai[] = {
++{
++ .name = "BoomBerry DAC",
++ .stream_name = "BoomBerry DAC HiFi",
++ .cpu_dai_name = "bcm2708-i2s.0",
++ .codec_dai_name = "pcm512x-hifi",
++ .platform_name = "bcm2708-i2s.0",
++ .codec_name = "pcm512x.1-004d",
++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBS_CFS,
++ .ops = &snd_rpi_boomberry_dac_ops,
++ .init = snd_rpi_boomberry_dac_init,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_boomberry_dac = {
++ .name = "snd_rpi_boomberry_dac",
++ .owner = THIS_MODULE,
++ .dai_link = snd_rpi_boomberry_dac_dai,
++ .num_links = ARRAY_SIZE(snd_rpi_boomberry_dac_dai),
++};
++
++static int snd_rpi_boomberry_dac_probe(struct platform_device *pdev)
++{
++ int ret = 0;
++
++ snd_rpi_boomberry_dac.dev = &pdev->dev;
++
++ if (pdev->dev.of_node) {
++ struct device_node *i2s_node;
++ struct snd_soc_dai_link *dai = &snd_rpi_boomberry_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;
++ }
++
++ digital_gain_0db_limit = !of_property_read_bool(
++ pdev->dev.of_node, "boomberry,24db_digital_gain");
++ }
++
++ ret = snd_soc_register_card(&snd_rpi_boomberry_dac);
++ if (ret)
++ dev_err(&pdev->dev,
++ "snd_soc_register_card() failed: %d\n", ret);
++
++ return ret;
++}
++
++static int snd_rpi_boomberry_dac_remove(struct platform_device *pdev)
++{
++ return snd_soc_unregister_card(&snd_rpi_boomberry_dac);
++}
++
++static const struct of_device_id snd_rpi_boomberry_dac_of_match[] = {
++ { .compatible = "boomberry,boomberry-dac", },
++ {},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_boomberry_dac_of_match);
++
++static struct platform_driver snd_rpi_boomberry_dac_driver = {
++ .driver = {
++ .name = "snd-rpi-boomberry-dac",
++ .owner = THIS_MODULE,
++ .of_match_table = snd_rpi_boomberry_dac_of_match,
++ },
++ .probe = snd_rpi_boomberry_dac_probe,
++ .remove = snd_rpi_boomberry_dac_remove,
++};
++
++module_platform_driver(snd_rpi_boomberry_dac_driver);
++
++MODULE_AUTHOR("Milan Neskovic <info@boomberry.co>");
++MODULE_DESCRIPTION("ASoC Driver for BoomBerry PI DAC HAT Sound Card");
++MODULE_LICENSE("GPL v2");
+--- /dev/null
++++ b/sound/soc/bcm/boomberry-digi.c
+@@ -0,0 +1,215 @@
++/*
++ * ASoC Driver for BoomBerry Raspberry Pi Digi HAT Sound Card
++ *
++ * Author: Milan Neskovic
++ * Copyright 2016
++ * based on code by Daniel Matuschek <info@crazy-audio.com>
++ * based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * 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>
++
++#include "../codecs/wm8804.h"
++
++static int snd_rpi_boomberry_digi_init(struct snd_soc_pcm_runtime *rtd)
++{
++ struct snd_soc_codec *codec = rtd->codec;
++
++ /* enable TX output */
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0);
++
++ return 0;
++}
++
++static int snd_rpi_boomberry_digi_startup(struct snd_pcm_substream *substream) {
++ /* turn on digital output */
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct snd_soc_codec *codec = rtd->codec;
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x00);
++ return 0;
++}
++
++static void snd_rpi_boomberry_digi_shutdown(struct snd_pcm_substream *substream) {
++ /* turn off output */
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct snd_soc_codec *codec = rtd->codec;
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x3c);
++}
++
++static int snd_rpi_boomberry_digi_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 *codec_dai = rtd->codec_dai;
++ struct snd_soc_codec *codec = rtd->codec;
++ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
++
++ int sysclk = 27000000; /* This is fixed on this board */
++
++ long mclk_freq=0;
++ int mclk_div=1;
++ int sampling_freq=1;
++
++ int ret;
++
++ int samplerate = params_rate(params);
++
++ if (samplerate<=96000) {
++ mclk_freq=samplerate*256;
++ mclk_div=WM8804_MCLKDIV_256FS;
++ } else {
++ mclk_freq=samplerate*128;
++ mclk_div=WM8804_MCLKDIV_128FS;
++ }
++
++ switch (samplerate) {
++ case 32000:
++ sampling_freq=0x03;
++ break;
++ case 44100:
++ sampling_freq=0x00;
++ break;
++ case 48000:
++ sampling_freq=0x02;
++ break;
++ case 88200:
++ sampling_freq=0x08;
++ break;
++ case 96000:
++ sampling_freq=0x0a;
++ break;
++ case 176400:
++ sampling_freq=0x0c;
++ break;
++ case 192000:
++ sampling_freq=0x0e;
++ break;
++ default:
++ dev_err(codec->dev,
++ "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
++ samplerate);
++ }
++
++ snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div);
++ snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq);
++
++ ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
++ sysclk, SND_SOC_CLOCK_OUT);
++ if (ret < 0) {
++ dev_err(codec->dev,
++ "Failed to set WM8804 SYSCLK: %d\n", ret);
++ return ret;
++ }
++
++ /* Enable TX output */
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0);
++
++ /* Power on */
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0);
++
++ /* set sampling frequency status bits */
++ snd_soc_update_bits(codec, WM8804_SPDTX4, 0x0f, sampling_freq);
++
++ return snd_soc_dai_set_bclk_ratio(cpu_dai,64);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_rpi_boomberry_digi_ops = {
++ .hw_params = snd_rpi_boomberry_digi_hw_params,
++ .startup = snd_rpi_boomberry_digi_startup,
++ .shutdown = snd_rpi_boomberry_digi_shutdown,
++};
++
++static struct snd_soc_dai_link snd_rpi_boomberry_digi_dai[] = {
++{
++ .name = "BoomBerry Digi",
++ .stream_name = "BoomBerry Digi HiFi",
++ .cpu_dai_name = "bcm2708-i2s.0",
++ .codec_dai_name = "wm8804-spdif",
++ .platform_name = "bcm2708-i2s.0",
++ .codec_name = "wm8804.1-003b",
++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBM_CFM,
++ .ops = &snd_rpi_boomberry_digi_ops,
++ .init = snd_rpi_boomberry_digi_init,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_boomberry_digi = {
++ .name = "snd_rpi_boomberry_digi",
++ .owner = THIS_MODULE,
++ .dai_link = snd_rpi_boomberry_digi_dai,
++ .num_links = ARRAY_SIZE(snd_rpi_boomberry_digi_dai),
++};
++
++static int snd_rpi_boomberry_digi_probe(struct platform_device *pdev)
++{
++ int ret = 0;
++
++ snd_rpi_boomberry_digi.dev = &pdev->dev;
++
++ if (pdev->dev.of_node) {
++ struct device_node *i2s_node;
++ struct snd_soc_dai_link *dai = &snd_rpi_boomberry_digi_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_boomberry_digi);
++ if (ret)
++ dev_err(&pdev->dev,
++ "snd_soc_register_card() failed: %d\n", ret);
++
++ return ret;
++}
++
++static int snd_rpi_boomberry_digi_remove(struct platform_device *pdev)
++{
++ return snd_soc_unregister_card(&snd_rpi_boomberry_digi);
++}
++
++static const struct of_device_id snd_rpi_boomberry_digi_of_match[] = {
++ { .compatible = "boomberry,boomberry-digi", },
++ {},
++};
++MODULE_DEVICE_TABLE(of, snd_rpi_boomberry_digi_of_match);
++
++static struct platform_driver snd_rpi_boomberry_digi_driver = {
++ .driver = {
++ .name = "snd-rpi-boomberry-digi",
++ .owner = THIS_MODULE,
++ .of_match_table = snd_rpi_boomberry_digi_of_match,
++ },
++ .probe = snd_rpi_boomberry_digi_probe,
++ .remove = snd_rpi_boomberry_digi_remove,
++};
++
++module_platform_driver(snd_rpi_boomberry_digi_driver);
++
++MODULE_AUTHOR("Milan Neskovic <info@boomberry.co>");
++MODULE_DESCRIPTION("ASoC Driver for BoomBerry PI Digi HAT Sound Card");
++MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 01:16:12 +0000