1 files changed, 0 insertions, 464 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0135-Added-driver-for-the-HiFiBerry-DAC-ADC-2694.patch b/target/linux/bcm27xx/patches-5.4/950-0135-Added-driver-for-the-HiFiBerry-DAC-ADC-2694.patch
deleted file mode 100644
index cc379f55e1..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0135-Added-driver-for-the-HiFiBerry-DAC-ADC-2694.patch
+++ /dev/null
@@ -1,464 +0,0 @@
-From b6eb457e794f8c48b7004cc88aa82889bcd5f8e6 Mon Sep 17 00:00:00 2001
-From: HiFiBerry <info@hifiberry.com>
-Date: Mon, 8 Oct 2018 18:10:12 +0200
-Subject: [PATCH] Added driver for the HiFiBerry DAC+ ADC (#2694)
-
-Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>
-
-hifiberry_dacplusadc: switch to snd_soc_dai_set_bclk_ratio
-
-Signed-off-by: Matthias Reichl <hias@horus.com>
-
-ASoC: hifiberry_dacplusadc: fix DAI link setup
-
-The driver only defines a single DAI link and the code that tries
-to setup the second (non-existent) DAI link looks wrong - using dmic
-as a CPU/platform driver doesn't make any sense.
-
-The DT overlay doesn't define a dmic property, so the code was never
-executed (otherwise it would have resulted in a memory corruption).
-
-So drop the offending code to prevent issues if a dmic property
-should be added to the DT overlay.
-
-Signed-off-by: Matthias Reichl <hias@horus.com>
-
-ASoC: hifiberry_dacplusadc: use modern dai_link style
-
-Signed-off-by: Matthias Reichl <hias@horus.com>
----
- sound/soc/bcm/Kconfig                |   9 +
- sound/soc/bcm/Makefile               |   2 +
- sound/soc/bcm/hifiberry_dacplusadc.c | 390 +++++++++++++++++++++++++++
- 3 files changed, 401 insertions(+)
- create mode 100644 sound/soc/bcm/hifiberry_dacplusadc.c
-
---- a/sound/soc/bcm/Kconfig
-+++ b/sound/soc/bcm/Kconfig
-@@ -41,6 +41,15 @@ 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
-+        select COMMON_CLK_HIFIBERRY_DACPRO
-+        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-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
-@@ -35,6 +36,7 @@ snd-soc-rpi-wm8804-soundcard-objs := rpi
- 
- 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 +1,390 @@
-+/*
-+ * 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_bclk_ratio(rtd->cpu_dai, channels * width);
-+	if (ret)
-+		return ret;
-+	ret = snd_soc_dai_set_bclk_ratio(rtd->codec_dai, 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,
-+};
-+
-+SND_SOC_DAILINK_DEFS(hifi,
-+	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
-+	DAILINK_COMP_ARRAY(COMP_CODEC("pcm512x.1-004d", "pcm512x-hifi"),
-+			   COMP_CODEC("dmic-codec", "dmic-hifi")),
-+	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
-+
-+static struct snd_soc_dai_link snd_rpi_hifiberry_dacplusadc_dai[] = {
-+{
-+	.name		= "HiFiBerry DAC+ADC",
-+	.stream_name	= "HiFiBerry DAC+ADC HiFi",
-+	.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,
-+	SND_SOC_DAILINK_REG(hifi),
-+},
-+};
-+
-+/* 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->cpus->of_node = i2s_node;
-+			dai->platforms->of_node = i2s_node;
-+			dai->cpus->dai_name = NULL;
-+			dai->platforms->name = NULL;
-+		}
-+	}
-+	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");