diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0306-Added-driver-for-the-HiFiBerry-DAC-ADC-2694.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0306-Added-driver-for-the-HiFiBerry-DAC-ADC-2694.patch | 576 |
1 files changed, 0 insertions, 576 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0306-Added-driver-for-the-HiFiBerry-DAC-ADC-2694.patch b/target/linux/brcm2708/patches-4.19/950-0306-Added-driver-for-the-HiFiBerry-DAC-ADC-2694.patch deleted file mode 100644 index f06f4cd96b..0000000000 --- a/target/linux/brcm2708/patches-4.19/950-0306-Added-driver-for-the-HiFiBerry-DAC-ADC-2694.patch +++ /dev/null @@ -1,576 +0,0 @@ -From dde0ec6b9fd5755de3a8962489cde9c0ce5e5005 Mon Sep 17 00:00:00 2001 -From: HiFiBerry <info@hifiberry.com> -Date: Mon, 8 Oct 2018 18:10:12 +0200 -Subject: [PATCH 306/806] Added driver for the HiFiBerry DAC+ ADC (#2694) - -Signed-off-by: Daniel Matuschek <daniel@hifiberry.com> ---- - arch/arm/boot/dts/overlays/Makefile | 1 + - arch/arm/boot/dts/overlays/README | 21 + - .../overlays/hifiberry-dacplusadc-overlay.dts | 71 +++ - sound/soc/bcm/Kconfig | 8 + - sound/soc/bcm/Makefile | 2 + - sound/soc/bcm/hifiberry_dacplusadc.c | 407 ++++++++++++++++++ - 8 files changed, 512 insertions(+) - create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplusadc-overlay.dts - create mode 100644 sound/soc/bcm/hifiberry_dacplusadc.c - ---- a/arch/arm/boot/dts/overlays/Makefile -+++ b/arch/arm/boot/dts/overlays/Makefile -@@ -49,6 +49,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ - hifiberry-amp.dtbo \ - hifiberry-dac.dtbo \ - hifiberry-dacplus.dtbo \ -+ hifiberry-dacplusadc.dtbo \ - hifiberry-digi.dtbo \ - hifiberry-digi-pro.dtbo \ - hy28a.dtbo \ ---- a/arch/arm/boot/dts/overlays/README -+++ b/arch/arm/boot/dts/overlays/README -@@ -779,6 +779,27 @@ Params: 24db_digital_gain Allow ga - master for bit clock and frame clock. - - -+Name: hifiberry-dacplusadc -+Info: Configures the HifiBerry DAC+ADC audio card -+Load: dtoverlay=hifiberry-dacplusadc,<param>=<val> -+Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec -+ Digital volume control. Enable with -+ "dtoverlay=hifiberry-dacplus,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!) -+ slave Force DAC+ Pro into slave mode, using Pi as -+ master for bit clock and frame clock. -+ -+ - Name: hifiberry-digi - Info: Configures the HifiBerry Digi and Digi+ audio card - Load: dtoverlay=hifiberry-digi ---- /dev/null -+++ b/arch/arm/boot/dts/overlays/hifiberry-dacplusadc-overlay.dts -@@ -0,0 +1,71 @@ -+// Definitions for HiFiBerry DAC+ADC -+/dts-v1/; -+/plugin/; -+ -+/ { -+ compatible = "brcm,bcm2708"; -+ -+ fragment@0 { -+ target-path = "/clocks"; -+ __overlay__ { -+ dacpro_osc: dacpro_osc { -+ compatible = "hifiberry,dacpro-clk"; -+ #clock-cells = <0>; -+ }; -+ }; -+ }; -+ -+ fragment@1 { -+ target = <&i2s>; -+ __overlay__ { -+ status = "okay"; -+ }; -+ }; -+ -+ fragment@2 { -+ target = <&i2c1>; -+ __overlay__ { -+ #address-cells = <1>; -+ #size-cells = <0>; -+ status = "okay"; -+ -+ pcm_codec: pcm5122@4d { -+ #sound-dai-cells = <0>; -+ compatible = "ti,pcm5122"; -+ reg = <0x4d>; -+ clocks = <&dacpro_osc>; -+ AVDD-supply = <&vdd_3v3_reg>; -+ DVDD-supply = <&vdd_3v3_reg>; -+ CPVDD-supply = <&vdd_3v3_reg>; -+ status = "okay"; -+ }; -+ }; -+ }; -+ -+ fragment@3 { -+ target-path = "/"; -+ __overlay__ { -+ dmic { -+ #sound-dai-cells = <0>; -+ compatible = "dmic-codec"; -+ num-channels = <2>; -+ status = "okay"; -+ }; -+ }; -+ }; -+ -+ fragment@4 { -+ target = <&sound>; -+ hifiberry_dacplusadc: __overlay__ { -+ compatible = "hifiberry,hifiberry-dacplusadc"; -+ i2s-controller = <&i2s>; -+ status = "okay"; -+ }; -+ }; -+ -+ __overrides__ { -+ 24db_digital_gain = -+ <&hifiberry_dacplusadc>,"hifiberry,24db_digital_gain?"; -+ slave = <&hifiberry_dacplusadc>,"hifiberry-dacplusadc,slave?"; -+ }; -+}; ---- a/sound/soc/bcm/Kconfig -+++ b/sound/soc/bcm/Kconfig -@@ -46,6 +46,14 @@ config SND_BCM2708_SOC_HIFIBERRY_DACPLUS - help - Say Y or M if you want to add support for HifiBerry DAC+. - -+config SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC -+ tristate "Support for HifiBerry DAC+ADC" -+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S -+ select SND_SOC_PCM512x_I2C -+ select SND_SOC_DMIC -+ help -+ Say Y or M if you want to add support for HifiBerry DAC+ADC. -+ - config SND_BCM2708_SOC_HIFIBERRY_DIGI - tristate "Support for HifiBerry Digi" - depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S ---- a/sound/soc/bcm/Makefile -+++ b/sound/soc/bcm/Makefile -@@ -14,6 +14,7 @@ snd-soc-googlevoicehat-codec-objs := goo - # BCM2708 Machine Support - snd-soc-3dlab-nano-player-objs := 3dlab-nano-player.o - snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o -+snd-soc-hifiberry-dacplusadc-objs := hifiberry_dacplusadc.o - snd-soc-justboom-dac-objs := justboom-dac.o - snd-soc-rpi-cirrus-objs := rpi-cirrus.o - snd-soc-rpi-proto-objs := rpi-proto.o -@@ -36,6 +37,7 @@ snd-soc-rpi-wm8804-soundcard-objs := rpi - obj-$(CONFIG_SND_BCM2708_SOC_3DLAB_NANO_PLAYER) += snd-soc-3dlab-nano-player.o - obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD) += snd-soc-googlevoicehat-codec.o - obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o -+obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUSADC) += snd-soc-hifiberry-dacplusadc.o - obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC) += snd-soc-justboom-dac.o - obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS) += snd-soc-rpi-cirrus.o - obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o ---- /dev/null -+++ b/sound/soc/bcm/hifiberry_dacplusadc.c -@@ -0,0 +1,407 @@ -+/* -+ * ASoC Driver for HiFiBerry DAC+ / DAC Pro with ADC -+ * -+ * Author: Daniel Matuschek, Stuart MacLean <stuart@hifiberry.com> -+ * Copyright 2014-2015 -+ * based on code by Florian Meier <florian.meier@koalo.de> -+ * ADC added by Joerg Schambacher <joscha@schambacher.com> -+ * Copyright 2018 -+ * -+ * 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 <linux/kernel.h> -+#include <linux/clk.h> -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/of.h> -+#include <linux/slab.h> -+#include <linux/delay.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" -+ -+#define HIFIBERRY_DACPRO_NOCLOCK 0 -+#define HIFIBERRY_DACPRO_CLK44EN 1 -+#define HIFIBERRY_DACPRO_CLK48EN 2 -+ -+struct platform_device *dmic_codec_dev; -+ -+struct pcm512x_priv { -+ struct regmap *regmap; -+ struct clk *sclk; -+}; -+ -+/* Clock rate of CLK44EN attached to GPIO6 pin */ -+#define CLK_44EN_RATE 22579200UL -+/* Clock rate of CLK48EN attached to GPIO3 pin */ -+#define CLK_48EN_RATE 24576000UL -+ -+static bool slave; -+static bool snd_rpi_hifiberry_is_dacpro; -+static bool digital_gain_0db_limit = true; -+ -+static void snd_rpi_hifiberry_dacplusadc_select_clk(struct snd_soc_component *component, -+ int clk_id) -+{ -+ switch (clk_id) { -+ case HIFIBERRY_DACPRO_NOCLOCK: -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x00); -+ break; -+ case HIFIBERRY_DACPRO_CLK44EN: -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x20); -+ break; -+ case HIFIBERRY_DACPRO_CLK48EN: -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x24, 0x04); -+ break; -+ } -+} -+ -+static void snd_rpi_hifiberry_dacplusadc_clk_gpio(struct snd_soc_component *component) -+{ -+ snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x24, 0x24); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_3, 0x0f, 0x02); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_6, 0x0f, 0x02); -+} -+ -+static bool snd_rpi_hifiberry_dacplusadc_is_sclk(struct snd_soc_component *component) -+{ -+ unsigned int sck; -+ -+ snd_soc_component_read(component, PCM512x_RATE_DET_4, &sck); -+ return (!(sck & 0x40)); -+} -+ -+static bool snd_rpi_hifiberry_dacplusadc_is_sclk_sleep( -+ struct snd_soc_component *component) -+{ -+ msleep(2); -+ return snd_rpi_hifiberry_dacplusadc_is_sclk(component); -+} -+ -+static bool snd_rpi_hifiberry_dacplusadc_is_pro_card(struct snd_soc_component *component) -+{ -+ bool isClk44EN, isClk48En, isNoClk; -+ -+ snd_rpi_hifiberry_dacplusadc_clk_gpio(component); -+ -+ snd_rpi_hifiberry_dacplusadc_select_clk(component, HIFIBERRY_DACPRO_CLK44EN); -+ isClk44EN = snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(component); -+ -+ snd_rpi_hifiberry_dacplusadc_select_clk(component, HIFIBERRY_DACPRO_NOCLOCK); -+ isNoClk = snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(component); -+ -+ snd_rpi_hifiberry_dacplusadc_select_clk(component, HIFIBERRY_DACPRO_CLK48EN); -+ isClk48En = snd_rpi_hifiberry_dacplusadc_is_sclk_sleep(component); -+ -+ return (isClk44EN && isClk48En && !isNoClk); -+} -+ -+static int snd_rpi_hifiberry_dacplusadc_clk_for_rate(int sample_rate) -+{ -+ int type; -+ -+ switch (sample_rate) { -+ case 11025: -+ case 22050: -+ case 44100: -+ case 88200: -+ case 176400: -+ case 352800: -+ type = HIFIBERRY_DACPRO_CLK44EN; -+ break; -+ default: -+ type = HIFIBERRY_DACPRO_CLK48EN; -+ break; -+ } -+ return type; -+} -+ -+static void snd_rpi_hifiberry_dacplusadc_set_sclk(struct snd_soc_component *component, -+ int sample_rate) -+{ -+ struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); -+ -+ if (!IS_ERR(pcm512x->sclk)) { -+ int ctype; -+ -+ ctype = snd_rpi_hifiberry_dacplusadc_clk_for_rate(sample_rate); -+ clk_set_rate(pcm512x->sclk, (ctype == HIFIBERRY_DACPRO_CLK44EN) -+ ? CLK_44EN_RATE : CLK_48EN_RATE); -+ snd_rpi_hifiberry_dacplusadc_select_clk(component, ctype); -+ } -+} -+ -+static int snd_rpi_hifiberry_dacplusadc_init(struct snd_soc_pcm_runtime *rtd) -+{ -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ struct pcm512x_priv *priv; -+ -+ if (slave) -+ snd_rpi_hifiberry_is_dacpro = false; -+ else -+ snd_rpi_hifiberry_is_dacpro = -+ snd_rpi_hifiberry_dacplusadc_is_pro_card(component); -+ -+ if (snd_rpi_hifiberry_is_dacpro) { -+ struct snd_soc_dai_link *dai = rtd->dai_link; -+ -+ dai->name = "HiFiBerry ADCDAC+ Pro"; -+ dai->stream_name = "HiFiBerry ADCDAC+ Pro HiFi"; -+ dai->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF -+ | SND_SOC_DAIFMT_CBM_CFM; -+ -+ snd_soc_component_update_bits(component, PCM512x_BCLK_LRCLK_CFG, 0x31, 0x11); -+ snd_soc_component_update_bits(component, PCM512x_MASTER_MODE, 0x03, 0x03); -+ snd_soc_component_update_bits(component, PCM512x_MASTER_CLKDIV_2, 0x7f, 63); -+ } else { -+ priv = snd_soc_component_get_drvdata(component); -+ priv->sclk = ERR_PTR(-ENOENT); -+ } -+ -+ snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08); -+ -+ if (digital_gain_0db_limit) { -+ int ret; -+ struct snd_soc_card *card = rtd->card; -+ -+ ret = snd_soc_limit_volume(card, "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_hifiberry_dacplusadc_update_rate_den( -+ struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component); -+ struct snd_ratnum *rats_no_pll; -+ unsigned int num = 0, den = 0; -+ int err; -+ -+ rats_no_pll = devm_kzalloc(rtd->dev, sizeof(*rats_no_pll), GFP_KERNEL); -+ if (!rats_no_pll) -+ return -ENOMEM; -+ -+ rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64; -+ rats_no_pll->den_min = 1; -+ rats_no_pll->den_max = 128; -+ rats_no_pll->den_step = 1; -+ -+ err = snd_interval_ratnum(hw_param_interval(params, -+ SNDRV_PCM_HW_PARAM_RATE), 1, rats_no_pll, &num, &den); -+ if (err >= 0 && den) { -+ params->rate_num = num; -+ params->rate_den = den; -+ } -+ -+ devm_kfree(rtd->dev, rats_no_pll); -+ return 0; -+} -+ -+static int snd_rpi_hifiberry_dacplusadc_hw_params( -+ struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) -+{ -+ int ret = 0; -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ int channels = params_channels(params); -+ int width = 32; -+ -+ if (snd_rpi_hifiberry_is_dacpro) { -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ -+ width = snd_pcm_format_physical_width(params_format(params)); -+ -+ snd_rpi_hifiberry_dacplusadc_set_sclk(component, -+ params_rate(params)); -+ -+ ret = snd_rpi_hifiberry_dacplusadc_update_rate_den( -+ substream, params); -+ } -+ -+ ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x03, 0x03, -+ channels, width); -+ if (ret) -+ return ret; -+ ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0x03, 0x03, -+ channels, width); -+ return ret; -+} -+ -+static int hifiberry_dacplusadc_LED_cnt; -+ -+static int snd_rpi_hifiberry_dacplusadc_startup( -+ struct snd_pcm_substream *substream) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, -+ 0x08, 0x08); -+ hifiberry_dacplusadc_LED_cnt++; -+ return 0; -+} -+ -+static void snd_rpi_hifiberry_dacplusadc_shutdown( -+ struct snd_pcm_substream *substream) -+{ -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ -+ hifiberry_dacplusadc_LED_cnt--; -+ if (!hifiberry_dacplusadc_LED_cnt) -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, -+ 0x08, 0x00); -+} -+ -+/* machine stream operations */ -+static struct snd_soc_ops snd_rpi_hifiberry_dacplusadc_ops = { -+ .hw_params = snd_rpi_hifiberry_dacplusadc_hw_params, -+ .startup = snd_rpi_hifiberry_dacplusadc_startup, -+ .shutdown = snd_rpi_hifiberry_dacplusadc_shutdown, -+}; -+ -+static struct snd_soc_dai_link_component snd_rpi_hifiberry_dacplusadc_codecs[] = { -+ { -+ .name = "pcm512x.1-004d", -+ .dai_name = "pcm512x-hifi", -+ }, -+ { -+ .name = "dmic-codec", -+ .dai_name = "dmic-hifi", -+ }, -+}; -+ -+static struct snd_soc_dai_link snd_rpi_hifiberry_dacplusadc_dai[] = { -+{ -+ .name = "HiFiBerry DAC+ADC", -+ .stream_name = "HiFiBerry DAC+ADC HiFi", -+ .cpu_dai_name = "bcm2708-i2s.0", -+ .platform_name = "bcm2708-i2s.0", -+ .codecs = snd_rpi_hifiberry_dacplusadc_codecs, -+ .num_codecs = 2, -+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | -+ SND_SOC_DAIFMT_CBS_CFS, -+ .ops = &snd_rpi_hifiberry_dacplusadc_ops, -+ .init = snd_rpi_hifiberry_dacplusadc_init, -+}, -+}; -+ -+/* audio machine driver */ -+static struct snd_soc_card snd_rpi_hifiberry_dacplusadc = { -+ .name = "snd_rpi_hifiberry_dacplusadc", -+ .driver_name = "HifiberryDacpAdc", -+ .owner = THIS_MODULE, -+ .dai_link = snd_rpi_hifiberry_dacplusadc_dai, -+ .num_links = ARRAY_SIZE(snd_rpi_hifiberry_dacplusadc_dai), -+}; -+ -+ -+static int snd_rpi_hifiberry_dacplusadc_probe(struct platform_device *pdev) -+{ -+ int ret = 0; -+ -+ snd_rpi_hifiberry_dacplusadc.dev = &pdev->dev; -+ if (pdev->dev.of_node) { -+ struct device_node *i2s_node; -+ struct snd_soc_dai_link *dai; -+ -+ dai = &snd_rpi_hifiberry_dacplusadc_dai[0]; -+ i2s_node = of_parse_phandle(pdev->dev.of_node, -+ "i2s-controller", 0); -+ if (i2s_node) { -+ dai->cpu_of_node = i2s_node; -+ dai->platform_of_node = i2s_node; -+ dai->cpu_dai_name = NULL; -+ dai->platform_name = NULL; -+ } -+ dai = &snd_rpi_hifiberry_dacplusadc_dai[1]; -+ i2s_node = of_parse_phandle(pdev->dev.of_node, "dmic", 0); -+ if (i2s_node) { -+ dai->cpu_of_node = i2s_node; -+ dai->platform_of_node = i2s_node; -+ } -+ -+ } -+ digital_gain_0db_limit = !of_property_read_bool( -+ pdev->dev.of_node, "hifiberry,24db_digital_gain"); -+ slave = of_property_read_bool(pdev->dev.of_node, -+ "hifiberry-dacplusadc,slave"); -+ -+ ret = devm_snd_soc_register_card(&pdev->dev, -+ &snd_rpi_hifiberry_dacplusadc); -+ 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_hifiberry_dacplusadc_of_match[] = { -+ { .compatible = "hifiberry,hifiberry-dacplusadc", }, -+ {}, -+}; -+ -+MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_dacplusadc_of_match); -+ -+static struct platform_driver snd_rpi_hifiberry_dacplusadc_driver = { -+ .driver = { -+ .name = "snd-rpi-hifiberry-dacplusadc", -+ .owner = THIS_MODULE, -+ .of_match_table = snd_rpi_hifiberry_dacplusadc_of_match, -+ }, -+ .probe = snd_rpi_hifiberry_dacplusadc_probe, -+}; -+ -+static int __init hifiberry_dacplusadc_init(void) -+{ -+ int ret; -+ -+ dmic_codec_dev = platform_device_register_simple("dmic-codec", -1, NULL, -+ 0); -+ if (IS_ERR(dmic_codec_dev)) { -+ pr_err("%s: dmic-codec device registration failed\n", __func__); -+ return PTR_ERR(dmic_codec_dev); -+ } -+ -+ ret = platform_driver_register(&snd_rpi_hifiberry_dacplusadc_driver); -+ if (ret) { -+ pr_err("%s: platform driver registration failed\n", __func__); -+ platform_device_unregister(dmic_codec_dev); -+ } -+ -+ return ret; -+} -+module_init(hifiberry_dacplusadc_init); -+ -+static void __exit hifiberry_dacplusadc_exit(void) -+{ -+ platform_driver_unregister(&snd_rpi_hifiberry_dacplusadc_driver); -+ platform_device_unregister(dmic_codec_dev); -+} -+module_exit(hifiberry_dacplusadc_exit); -+ -+MODULE_AUTHOR("Joerg Schambacher <joscha@schambacher.com>"); -+MODULE_AUTHOR("Daniel Matuschek <daniel@hifiberry.com>"); -+MODULE_DESCRIPTION("ASoC Driver for HiFiBerry DAC+ADC"); -+MODULE_LICENSE("GPL v2"); |