+++ /dev/null
-From 4d6aaca0231c13aa5b47284cc58d0796196c0ee5 Mon Sep 17 00:00:00 2001
-From: Aaron Shaw <shawaj@gmail.com>
-Date: Thu, 7 Apr 2016 21:26:21 +0100
-Subject: [PATCH] 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");
projects / openwrt / openwrt.git / blobdiff