path: root/target/linux/bcm27xx/patches-4.19/950-0425-ASoC-decommissioning-driver-for-3Dlab-Nano-soundcard.patch

From 3150326498ba9388b85e5af2c8fcfeafc46eeaad Mon Sep 17 00:00:00 2001
From: GT <dev@3d-lab-av.com>
Date: Sat, 6 Apr 2019 21:16:39 +0100
Subject: [PATCH] ASoC: decommissioning driver for 3Dlab Nano soundcard

---
 .../overlays/3dlab-nano-player-overlay.dts    |  32 --
 arch/arm/boot/dts/overlays/Makefile           |   1 -
 arch/arm/boot/dts/overlays/README             |   6 -
 sound/soc/bcm/3dlab-nano-player.c             | 370 ------------------
 sound/soc/bcm/Kconfig                         |   6 -
 sound/soc/bcm/Makefile                        |   6 +-
 8 files changed, 2 insertions(+), 421 deletions(-)
 delete mode 100644 arch/arm/boot/dts/overlays/3dlab-nano-player-overlay.dts
 delete mode 100644 sound/soc/bcm/3dlab-nano-player.c

--- a/arch/arm/boot/dts/overlays/3dlab-nano-player-overlay.dts
+++ /dev/null
@@ -1,32 +0,0 @@
-// Definitions for 3Dlab Nano Player
-/dts-v1/;
-/plugin/;
-
-/ {
-	compatible = "brcm,bcm2708";
-
-	fragment@0 {
-		target = <&i2s>;
-		__overlay__ {
-			status = "okay";
-		};
-	};
-
-	fragment@1 {
-		target = <&i2c>;
-		__overlay__ {
-			#address-cells = <1>;
-			#size-cells = <0>;
-			status = "okay";
-
-			nano-player@41 {
-				compatible = "3dlab,nano-player";
-				reg = <0x41>;
-				i2s-controller = <&i2s>;
-				status = "okay";
-			};
-		};
-	};
-};
-
-// EOF
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -1,7 +1,6 @@
 # Overlays for the Raspberry Pi platform
 
 dtbo-$(CONFIG_ARCH_BCM2835) += \
-	3dlab-nano-player.dtbo \
 	adau1977-adc.dtbo \
 	adau7002-simple.dtbo \
 	ads1015.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -205,12 +205,6 @@ Params:
         and the other i2c baudrate parameters.
 
 
-Name:   3dlab-nano-player
-Info:   Configures the 3Dlab Nano Player
-Load:   dtoverlay=3dlab-nano-player
-Params: <None>
-
-
 Name:   adau1977-adc
 Info:   Overlay for activation of ADAU1977 ADC codec over I2C for control
         and I2S for data.
--- a/sound/soc/bcm/3dlab-nano-player.c
+++ /dev/null
@@ -1,370 +0,0 @@
-/*
- * 3Dlab Nano Player ALSA SoC Audio driver.
- *
- * Copyright (C) 2018 3Dlab.
- *
- * Author: GT <dev@3d-lab-av.com>
- *
- * 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/i2c.h>
-#include <sound/soc.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/control.h>
-
-#define NANO_ID		0x00
-#define NANO_VER	0x01
-#define NANO_CFG	0x02
-#define NANO_STATUS	0x03
-#define NANO_SPI_ADDR	0x04
-#define NANO_SPI_DATA	0x05
-
-#define NANO_ID_VAL	0x3D
-#define NANO_CFG_OFF	0x00
-#define NANO_CFG_MULT1	0
-#define NANO_CFG_MULT2	1
-#define NANO_CFG_MULT4	2
-#define NANO_CFG_MULT8	3
-#define NANO_CFG_MULT16	4
-#define NANO_CFG_CLK22	0
-#define NANO_CFG_CLK24	BIT(3)
-#define NANO_CFG_DSD	BIT(4)
-#define NANO_CFG_ENA	BIT(5)
-#define NANO_CFG_BLINK	BIT(6)
-#define NANO_STATUS_P1  BIT(0)
-#define NANO_STATUS_P2  BIT(1)
-#define NANO_STATUS_FLG BIT(2)
-#define NANO_STATUS_CLK BIT(3)
-#define NANO_SPI_READ	0
-#define NANO_SPI_WRITE	BIT(5)
-
-#define NANO_DAC_CTRL1	0x00
-#define NANO_DAC_CTRL2	0x01
-#define NANO_DAC_CTRL3	0x02
-#define NANO_DAC_LATT	0x03
-#define NANO_DAC_RATT	0x04
-
-#define NANO_CTRL2_VAL	0x22
-
-static int nano_player_spi_write(struct regmap *map,
-				 unsigned int reg, unsigned int val)
-{
-	/* indirect register access */
-	regmap_write(map, NANO_SPI_DATA, val);
-	regmap_write(map, NANO_SPI_ADDR, reg | NANO_SPI_WRITE);
-	return 0;
-}
-
-static int nano_player_ctrl_info(struct snd_kcontrol *kcontrol,
-				 struct snd_ctl_elem_info *uinfo)
-{
-	/* describe control element */
-	if (strstr(kcontrol->id.name, "Volume")) {
-		uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
-		uinfo->count = 1;
-		uinfo->value.integer.min = 0;
-		uinfo->value.integer.max = 100;
-	} else {
-		uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
-		uinfo->count = 1;
-		uinfo->value.integer.min = 0;
-		uinfo->value.integer.max = 1;
-	}
-
-	return 0;
-}
-
-static int nano_player_ctrl_put(struct snd_kcontrol *kcontrol,
-				struct snd_ctl_elem_value *ucontrol)
-{
-	/* program control value to hardware */
-	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
-	struct regmap *regmap = snd_soc_card_get_drvdata(card);
-
-	if (strstr(kcontrol->id.name, "Volume")) {
-		unsigned int vol = ucontrol->value.integer.value[0];
-		unsigned int att = 255 - (2 * (100 - vol));
-
-		nano_player_spi_write(regmap, NANO_DAC_LATT, att);
-		nano_player_spi_write(regmap, NANO_DAC_RATT, att);
-		kcontrol->private_value = vol;
-	} else {
-		unsigned int mute = ucontrol->value.integer.value[0];
-		unsigned int reg = NANO_CTRL2_VAL | mute;
-
-		nano_player_spi_write(regmap, NANO_DAC_CTRL2, reg);
-		kcontrol->private_value = mute;
-	}
-	return 0;
-}
-
-static int nano_player_ctrl_get(struct snd_kcontrol *kcontrol,
-				struct snd_ctl_elem_value *ucontrol)
-{
-	/* return last programmed value */
-	ucontrol->value.integer.value[0] = kcontrol->private_value;
-	return 0;
-}
-
-#define SOC_NANO_PLAYER_CTRL(xname) \
-{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
-	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
-	.info = nano_player_ctrl_info, \
-	.put = nano_player_ctrl_put, \
-	.get = nano_player_ctrl_get }
-
-static const struct snd_kcontrol_new nano_player_controls[] = {
-	SOC_NANO_PLAYER_CTRL("Master Playback Volume"),
-	SOC_NANO_PLAYER_CTRL("Master Playback Switch"),
-};
-
-static const unsigned int nano_player_rates[] = {
-	44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000,
-	705600, 768000 /* only possible with fast clocks */
-};
-
-static struct snd_pcm_hw_constraint_list nano_player_constraint_rates = {
-	.list	= nano_player_rates,
-	.count	= ARRAY_SIZE(nano_player_rates),
-};
-
-static int nano_player_init(struct snd_soc_pcm_runtime *rtd)
-{
-	struct snd_soc_card *card = rtd->card;
-	struct regmap *regmap = snd_soc_card_get_drvdata(card);
-	struct snd_soc_pcm_stream *cpu = &rtd->cpu_dai->driver->playback;
-	struct snd_soc_pcm_stream *codec = &rtd->codec_dai->driver->playback;
-	unsigned int sample_bits = 32;
-	unsigned int val;
-
-	/* configure cpu dai */
-	cpu->formats |= SNDRV_PCM_FMTBIT_DSD_U32_LE;
-	cpu->rate_max = 768000;
-
-	/* configure dummy codec dai */
-	codec->rate_min = 44100;
-	codec->rates = SNDRV_PCM_RATE_KNOT;
-	codec->formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_DSD_U32_LE;
-
-	/* configure max supported rate */
-	regmap_read(regmap, NANO_STATUS, &val);
-	if (val & NANO_STATUS_CLK) {
-		dev_notice(card->dev, "Board with fast clocks installed\n");
-		codec->rate_max = 768000;
-	} else {
-		dev_notice(card->dev, "Board with normal clocks installed\n");
-		codec->rate_max = 384000;
-	}
-
-	/* frame length enforced by hardware */
-	return snd_soc_dai_set_bclk_ratio(rtd->cpu_dai, sample_bits * 2);
-}
-
-static int nano_player_startup(struct snd_pcm_substream *substream)
-{
-	return snd_pcm_hw_constraint_list(substream->runtime, 0,
-					  SNDRV_PCM_HW_PARAM_RATE,
-					  &nano_player_constraint_rates);
-}
-
-static int nano_player_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_card *card = rtd->card;
-	struct regmap *regmap = snd_soc_card_get_drvdata(card);
-	unsigned int config = NANO_CFG_ENA;
-	struct snd_mask *fmt;
-
-	/* configure PCM or DSD */
-	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
-	if (snd_mask_test(fmt, SNDRV_PCM_FORMAT_DSD_U32_LE)) {
-		/* embed DSD in PCM data */
-		snd_mask_none(fmt);
-		snd_mask_set(fmt, SNDRV_PCM_FORMAT_S32_LE);
-		/* enable DSD mode */
-		config |= NANO_CFG_DSD;
-	}
-
-	/* configure clocks */
-	switch (params_rate(params)) {
-	case 44100:
-		config |= NANO_CFG_MULT1 | NANO_CFG_CLK22;
-		break;
-	case 88200:
-		config |= NANO_CFG_MULT2 | NANO_CFG_CLK22;
-		break;
-	case 176400:
-		config |= NANO_CFG_MULT4 | NANO_CFG_CLK22;
-		break;
-	case 352800:
-		config |= NANO_CFG_MULT8 | NANO_CFG_CLK22;
-		break;
-	case 705600:
-		config |= NANO_CFG_MULT16 | NANO_CFG_CLK22;
-		break;
-	case 48000:
-		config |= NANO_CFG_MULT1 | NANO_CFG_CLK24;
-		break;
-	case 96000:
-		config |= NANO_CFG_MULT2 | NANO_CFG_CLK24;
-		break;
-	case 192000:
-		config |= NANO_CFG_MULT4 | NANO_CFG_CLK24;
-		break;
-	case 384000:
-		config |= NANO_CFG_MULT8 | NANO_CFG_CLK24;
-		break;
-	case 768000:
-		config |= NANO_CFG_MULT16 | NANO_CFG_CLK24;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	dev_dbg(card->dev, "Send CFG register 0x%02X\n", config);
-	return regmap_write(regmap, NANO_CFG, config);
-}
-
-static struct snd_soc_ops nano_player_ops = {
-	.startup	= nano_player_startup,
-	.hw_params	= nano_player_hw_params,
-};
-
-static struct snd_soc_dai_link nano_player_link = {
-	.name		= "3Dlab Nano Player",
-	.stream_name	= "3Dlab Nano Player HiFi",
-	.platform_name	= "bcm2708-i2s.0",
-	.cpu_dai_name	= "bcm2708-i2s.0",
-	.codec_name	= "snd-soc-dummy",
-	.codec_dai_name	= "snd-soc-dummy-dai",
-	.dai_fmt	= SND_SOC_DAIFMT_I2S |
-			  SND_SOC_DAIFMT_CONT |
-			  SND_SOC_DAIFMT_NB_NF |
-			  SND_SOC_DAIFMT_CBM_CFM,
-	.init		= nano_player_init,
-	.ops		= &nano_player_ops,
-};
-
-static const struct regmap_config nano_player_regmap = {
-	.reg_bits	= 8,
-	.val_bits	= 8,
-	.max_register	= 128,
-	.cache_type	= REGCACHE_RBTREE,
-};
-
-static int nano_player_card_probe(struct snd_soc_card *card)
-{
-	struct regmap *regmap = snd_soc_card_get_drvdata(card);
-	unsigned int val;
-
-	/* check hardware integrity */
-	regmap_read(regmap, NANO_ID, &val);
-	if (val != NANO_ID_VAL) {
-		dev_err(card->dev, "Invalid ID register 0x%02X\n", val);
-		return -ENODEV;
-	}
-
-	/* report version to the user */
-	regmap_read(regmap, NANO_VER, &val);
-	dev_notice(card->dev, "Started 3Dlab Nano Player driver (v%d)\n", val);
-
-	/* enable internal audio bus and blink status LED */
-	return regmap_write(regmap, NANO_CFG, NANO_CFG_ENA | NANO_CFG_BLINK);
-}
-
-static int nano_player_card_remove(struct snd_soc_card *card)
-{
-	/* disable internal audio bus */
-	struct regmap *regmap = snd_soc_card_get_drvdata(card);
-
-	return regmap_write(regmap, NANO_CFG, NANO_CFG_OFF);
-}
-
-static struct snd_soc_card nano_player_card = {
-	.name		= "3Dlab_Nano_Player",
-	.owner		= THIS_MODULE,
-	.dai_link	= &nano_player_link,
-	.num_links	= 1,
-	.controls	= nano_player_controls,
-	.num_controls	= ARRAY_SIZE(nano_player_controls),
-	.probe		= nano_player_card_probe,
-	.remove		= nano_player_card_remove,
-};
-
-static int nano_player_i2c_probe(struct i2c_client *i2c,
-				 const struct i2c_device_id *id)
-{
-	struct regmap *regmap;
-	int ret;
-
-	regmap = devm_regmap_init_i2c(i2c, &nano_player_regmap);
-	if (IS_ERR(regmap)) {
-		ret = PTR_ERR(regmap);
-		dev_err(&i2c->dev, "Failed to init regmap %d\n", ret);
-		return ret;
-	}
-
-	if (i2c->dev.of_node) {
-		struct snd_soc_dai_link *dai = &nano_player_link;
-		struct device_node *node;
-
-		/* cpu handle configured by device tree */
-		node = of_parse_phandle(i2c->dev.of_node, "i2s-controller", 0);
-		if (node) {
-			dai->platform_name = NULL;
-			dai->platform_of_node = node;
-			dai->cpu_dai_name = NULL;
-			dai->cpu_of_node = node;
-		}
-	}
-
-	nano_player_card.dev = &i2c->dev;
-	snd_soc_card_set_drvdata(&nano_player_card, regmap);
-	ret = devm_snd_soc_register_card(&i2c->dev, &nano_player_card);
-
-	if (ret && ret != -EPROBE_DEFER)
-		dev_err(&i2c->dev, "Failed to register card %d\n", ret);
-
-	return ret;
-}
-
-static const struct of_device_id nano_player_of_match[] = {
-	{ .compatible = "3dlab,nano-player", },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, nano_player_of_match);
-
-static const struct i2c_device_id nano_player_i2c_id[] = {
-	{ "nano-player", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, nano_player_i2c_id);
-
-static struct i2c_driver nano_player_i2c_driver = {
-	.probe		= nano_player_i2c_probe,
-	.id_table	= nano_player_i2c_id,
-	.driver		= {
-		.name		= "nano-player",
-		.owner		= THIS_MODULE,
-		.of_match_table	= nano_player_of_match,
-	},
-};
-
-module_i2c_driver(nano_player_i2c_driver);
-
-MODULE_DESCRIPTION("ASoC 3Dlab Nano Player driver");
-MODULE_AUTHOR("GT <dev@3d-lab-av.com>");
-MODULE_LICENSE("GPL v2");
-
-/* EOF */
--- a/sound/soc/bcm/Kconfig
+++ b/sound/soc/bcm/Kconfig
@@ -17,12 +17,6 @@ config SND_SOC_CYGNUS
 
 	  If you don't know what to do here, say N.
 
-config SND_BCM2708_SOC_3DLAB_NANO_PLAYER
-	tristate "Support for 3Dlab Nano Player"
-	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
-	help
-	  Say Y or M if you want to add support for 3Dlab Nano Player.
-
 config SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD
 	tristate "Support for Google voiceHAT soundcard"
 	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
--- a/sound/soc/bcm/Makefile
+++ b/sound/soc/bcm/Makefile
@@ -12,7 +12,6 @@ obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-
 snd-soc-googlevoicehat-codec-objs := googlevoicehat-codec.o
 
 # 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
@@ -20,7 +19,7 @@ snd-soc-rpi-cirrus-objs := rpi-cirrus.o
 snd-soc-rpi-proto-objs := rpi-proto.o
 snd-soc-iqaudio-codec-objs := iqaudio-codec.o
 snd-soc-iqaudio-dac-objs := iqaudio-dac.o
- snd-soc-i-sabre-q2m-objs := i-sabre-q2m.o
+snd-soc-i-sabre-q2m-objs := i-sabre-q2m.o
 snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o
 snd-soc-audioinjector-octo-soundcard-objs := audioinjector-octo-soundcard.o
 snd-soc-audiosense-pi-objs := audiosense-pi.o
@@ -36,7 +35,6 @@ snd-soc-fe-pi-audio-objs := fe-pi-audio.
 snd-soc-rpi-simple-soundcard-objs := rpi-simple-soundcard.o
 snd-soc-rpi-wm8804-soundcard-objs := rpi-wm8804-soundcard.o
 
-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
@@ -45,7 +43,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS)
 obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o
 obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_CODEC) += snd-soc-iqaudio-codec.o
 obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o
- obj-$(CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M) += snd-soc-i-sabre-q2m.o
+obj-$(CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M) += snd-soc-i-sabre-q2m.o
 obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o
 obj-$(CONFIG_SND_AUDIOINJECTOR_OCTO_SOUNDCARD) += snd-soc-audioinjector-octo-soundcard.o
 obj-$(CONFIG_SND_AUDIOSENSE_PI) += snd-soc-audiosense-pi.o