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-rw-r--r--target/linux/brcm2708/patches-4.14/950-0281-Drivers-for-Allo-Katana-DAC.patch745
1 files changed, 745 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0281-Drivers-for-Allo-Katana-DAC.patch b/target/linux/brcm2708/patches-4.14/950-0281-Drivers-for-Allo-Katana-DAC.patch
new file mode 100644
index 0000000000..16235f23eb
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0281-Drivers-for-Allo-Katana-DAC.patch
@@ -0,0 +1,745 @@
+From 87d450d98ef1f69dd6f5255c3b7e665c130935ea Mon Sep 17 00:00:00 2001
+From: allocom <sparky-dev@allo.com>
+Date: Thu, 19 Apr 2018 12:12:26 +0530
+Subject: [PATCH 281/454] Drivers for Allo Katana DAC
+
+---
+ arch/arm/boot/dts/overlays/Makefile | 1 +
+ arch/arm/boot/dts/overlays/README | 6 +
+ .../allo-katana-dac-audio-overlay.dts | 46 +++
+ arch/arm/configs/bcm2709_defconfig | 1 +
+ arch/arm/configs/bcmrpi_defconfig | 1 +
+ sound/soc/bcm/Kconfig | 7 +
+ sound/soc/bcm/Makefile | 2 +
+ sound/soc/bcm/allo-katana-dac.c | 105 ++++++
+ sound/soc/codecs/Kconfig | 10 +
+ sound/soc/codecs/Makefile | 4 +
+ sound/soc/codecs/sabre-ess-i2c.c | 69 ++++
+ sound/soc/codecs/sabre-ess.c | 300 ++++++++++++++++++
+ sound/soc/codecs/sabre-ess.h | 62 ++++
+ 13 files changed, 614 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts
+ create mode 100644 sound/soc/bcm/allo-katana-dac.c
+ create mode 100644 sound/soc/codecs/sabre-ess-i2c.c
+ create mode 100644 sound/soc/codecs/sabre-ess.c
+ create mode 100644 sound/soc/codecs/sabre-ess.h
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -9,6 +9,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ akkordion-iqdacplus.dtbo \
+ allo-boss-dac-pcm512x-audio.dtbo \
+ allo-digione.dtbo \
++ allo-katana-dac-audio.dtbo \
+ allo-piano-dac-pcm512x-audio.dtbo \
+ allo-piano-dac-plus-pcm512x-audio.dtbo \
+ applepi-dac.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -317,6 +317,12 @@ Load: dtoverlay=allo-digione
+ Params: <None>
+
+
++Name: allo-katana
++Info: Configures the Allo Katana audio card
++Load: dtoverlay=allo-katana-dac-audio
++Params: <None>
++
++
+ Name: allo-piano-dac-pcm512x-audio
+ Info: Configures the Allo Piano DAC (2.0/2.1) audio cards.
+ (NB. This initial support is for 2.0 channel audio ONLY! ie. stereo.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts
+@@ -0,0 +1,46 @@
++/*
++ * Definitions for Allo Katana DAC boards
++ *
++ * NB. The Katana DAC board contains SABER DAC.
++ */
++
++/dts-v1/;
++/plugin/;
++
++/ {
++ compatible = "brcm,bcm2708";
++
++ fragment@0 {
++ target = <&i2s>;
++ __overlay__ {
++ status = "okay";
++ };
++ };
++
++ fragment@1 {
++ target = <&i2c1>;
++ __overlay__ {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ status = "okay";
++
++ sabre-ess@30 {
++ #sound-dai-cells = <0>;
++ compatible = "saber,sabre-ess";
++ reg = <0x30>;
++ status = "okay";
++ };
++ };
++ };
++
++ fragment@2 {
++ target = <&sound>;
++ katana_dac: __overlay__ {
++ compatible = "allo,katana-dac";
++ i2s-controller = <&i2s>;
++ status = "okay";
++ };
++ };
++
++};
++
+--- a/arch/arm/configs/bcm2709_defconfig
++++ b/arch/arm/configs/bcm2709_defconfig
+@@ -894,6 +894,7 @@ CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m
+ CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS=m
+ CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC=m
+ CONFIG_SND_BCM2708_SOC_ALLO_DIGIONE=m
++CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC=m
+ CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO=m
+ CONFIG_SND_PISOUND=m
+ CONFIG_SND_SOC_ADAU1701=m
+--- a/arch/arm/configs/bcmrpi_defconfig
++++ b/arch/arm/configs/bcmrpi_defconfig
+@@ -887,6 +887,7 @@ CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m
+ CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS=m
+ CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC=m
+ CONFIG_SND_BCM2708_SOC_ALLO_DIGIONE=m
++CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC=m
+ CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO=m
+ CONFIG_SND_PISOUND=m
+ CONFIG_SND_SOC_ADAU1701=m
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -175,6 +175,13 @@ config SND_BCM2708_SOC_ALLO_DIGIONE
+ help
+ Say Y or M if you want to add support for Allo DigiOne.
+
++config SND_BCM2708_SOC_ALLO_KATANA_DAC
++ tristate "Support for Allo Katana DAC"
++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++ select SND_SOC_SABRE_ESS_I2C
++ help
++ Say Y or M if you want to add support for Allo Katana DAC.
++
+ config SND_BCM2708_SOC_FE_PI_AUDIO
+ tristate "Support for Fe-Pi-Audio"
+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -34,6 +34,7 @@ snd-soc-allo-boss-dac-objs := allo-boss-
+ snd-soc-allo-piano-dac-objs := allo-piano-dac.o
+ snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o
+ snd-soc-allo-digione-objs := allo-digione.o
++snd-soc-allo-katana-dac-objs := allo-katana-dac.o
+ snd-soc-pisound-objs := pisound.o
+ snd-soc-fe-pi-audio-objs := fe-pi-audio.o
+
+@@ -60,5 +61,6 @@ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_D
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_DIGIONE) += snd-soc-allo-digione.o
++obj-$(CONFIG_SND_BCM2708_SOC_ALLO_KATANA_DAC) += snd-soc-allo-katana-dac.o
+ obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o
+ obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o
+--- /dev/null
++++ b/sound/soc/bcm/allo-katana-dac.c
+@@ -0,0 +1,105 @@
++/*
++ * ASoC Driver for KATANA DAC
++ *
++ * Author: Jaikumar <jaikumar@cem-solutions.net>
++ * 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 <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++
++static struct snd_soc_dai_link snd_allo_katana_dac_dai[] = {
++{
++ .name = "KATANA DAC",
++ //.stream_name = "KATANA DAC HiFi [Master]",
++ .stream_name = "KATANA DAC",
++ .cpu_dai_name = "bcm2708-i2s.0",
++ //.codec_dai_name = "es9038q2m-hifi",
++ .codec_dai_name = "sabre-ess",
++ .platform_name = "bcm2708-i2s.0",
++ //.codec_name = "es9038q2m.1-0030",
++ .codec_name = "sabre-ess.1-0030",
++ .dai_fmt = SND_SOC_DAIFMT_I2S |
++ SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBM_CFM,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_allo_katana_dac = {
++ .name = "snd_allo_katana_dac",
++ .owner = THIS_MODULE,
++ .dai_link = snd_allo_katana_dac_dai,
++ .num_links = ARRAY_SIZE(snd_allo_katana_dac_dai),
++};
++
++static int snd_allo_katana_dac_probe(struct platform_device *pdev)
++{
++ int ret = 0;
++
++ snd_allo_katana_dac.dev = &pdev->dev;
++
++ if (pdev->dev.of_node) {
++ struct device_node *i2s_node;
++ struct snd_soc_dai_link *dai = &snd_allo_katana_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;
++ }
++ }
++
++ ret = snd_soc_register_card(&snd_allo_katana_dac);
++ if (ret && ret != -EPROBE_DEFER)
++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++ ret);
++
++ return ret;
++}
++
++static int snd_allo_katana_dac_remove(struct platform_device *pdev)
++{
++ return snd_soc_unregister_card(&snd_allo_katana_dac);
++}
++
++static const struct of_device_id snd_allo_katana_dac_of_match[] = {
++ { .compatible = "allo,katana-dac", },
++ {},
++};
++MODULE_DEVICE_TABLE(of, snd_allo_katana_dac_of_match);
++
++static struct platform_driver snd_allo_katana_dac_driver = {
++ .driver = {
++ .name = "snd-katana-dac",
++ .owner = THIS_MODULE,
++ .of_match_table = snd_allo_katana_dac_of_match,
++ },
++ .probe = snd_allo_katana_dac_probe,
++ .remove = snd_allo_katana_dac_remove,
++};
++
++module_platform_driver(snd_allo_katana_dac_driver);
++
++MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
++MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Katana DAC");
++MODULE_LICENSE("GPL v2");
++
+--- a/sound/soc/codecs/Kconfig
++++ b/sound/soc/codecs/Kconfig
+@@ -77,6 +77,7 @@ config SND_SOC_ALL_CODECS
+ select SND_SOC_ES8328_SPI if SPI_MASTER
+ select SND_SOC_ES8328_I2C if I2C
+ select SND_SOC_ES7134
++ select SND_SOC_SABRE_ESS_I2C if I2C
+ select SND_SOC_GTM601
+ select SND_SOC_HDAC_HDMI
+ select SND_SOC_ICS43432
+@@ -1186,4 +1187,13 @@ config SND_SOC_TPA6130A2
+ tristate "Texas Instruments TPA6130A2 headphone amplifier"
+ depends on I2C
+
++config SND_SOC_SABRE_ESS
++ tristate
++
++config SND_SOC_SABRE_ESS_I2C
++ tristate "Sabre SABRE ESS CODEC - I2C"
++ depends on I2C
++ select SND_SOC_SABRE_ESS
++ select REGMAP_I2C
++
+ endmenu
+--- a/sound/soc/codecs/Makefile
++++ b/sound/soc/codecs/Makefile
+@@ -71,6 +71,8 @@ snd-soc-es8316-objs := es8316.o
+ snd-soc-es8328-objs := es8328.o
+ snd-soc-es8328-i2c-objs := es8328-i2c.o
+ snd-soc-es8328-spi-objs := es8328-spi.o
++snd-soc-sabre-ess-objs := sabre-ess.o
++snd-soc-sabre-ess-i2c-objs := sabre-ess-i2c.o
+ snd-soc-gtm601-objs := gtm601.o
+ snd-soc-hdac-hdmi-objs := hdac_hdmi.o
+ snd-soc-ics43432-objs := ics43432.o
+@@ -313,6 +315,8 @@ obj-$(CONFIG_SND_SOC_ES8316) += snd-s
+ obj-$(CONFIG_SND_SOC_ES8328) += snd-soc-es8328.o
+ obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o
+ obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o
++obj-$(CONFIG_SND_SOC_SABRE_ESS) += snd-soc-sabre-ess.o
++obj-$(CONFIG_SND_SOC_SABRE_ESS_I2C) += snd-soc-sabre-ess-i2c.o
+ obj-$(CONFIG_SND_SOC_GTM601) += snd-soc-gtm601.o
+ obj-$(CONFIG_SND_SOC_HDAC_HDMI) += snd-soc-hdac-hdmi.o
+ obj-$(CONFIG_SND_SOC_ICS43432) += snd-soc-ics43432.o
+--- /dev/null
++++ b/sound/soc/codecs/sabre-ess-i2c.c
+@@ -0,0 +1,69 @@
++/*
++ * Driver for the SABRE ESS CODECs
++ *
++ * Author: Jaikumar <jaikumar@cem-solutions.net>
++ * 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/init.h>
++#include <linux/module.h>
++#include <linux/i2c.h>
++
++#include "sabre-ess.h"
++
++static int sabre_ess_i2c_probe(struct i2c_client *i2c,
++ const struct i2c_device_id *id)
++{
++ struct regmap *regmap;
++ struct regmap_config config = sabre_ess_regmap;
++
++ regmap = devm_regmap_init_i2c(i2c, &config);
++ if (IS_ERR(regmap))
++ return PTR_ERR(regmap);
++
++ return sabre_ess_probe(&i2c->dev, regmap);
++}
++
++static int sabre_ess_i2c_remove(struct i2c_client *i2c)
++{
++ sabre_ess_remove(&i2c->dev);
++ return 0;
++}
++
++static const struct i2c_device_id sabre_ess_i2c_id[] = {
++ { "sabre-ess", },
++ { }
++};
++MODULE_DEVICE_TABLE(i2c, sabre_ess_i2c_id);
++
++static const struct of_device_id sabre_ess_of_match[] = {
++ { .compatible = "saber,sabre-ess", },
++ { }
++};
++MODULE_DEVICE_TABLE(of, sabre_ess_of_match);
++
++static struct i2c_driver sabre_ess_i2c_driver = {
++ .probe = sabre_ess_i2c_probe,
++ .remove = sabre_ess_i2c_remove,
++ .id_table = sabre_ess_i2c_id,
++ .driver = {
++ .name = "sabre-ess",
++ .of_match_table = sabre_ess_of_match,
++ },
++};
++
++module_i2c_driver(sabre_ess_i2c_driver);
++
++MODULE_DESCRIPTION("ASoC SABRE ESS codec driver - I2C");
++MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
++MODULE_LICENSE("GPL v2");
++
+--- /dev/null
++++ b/sound/soc/codecs/sabre-ess.c
+@@ -0,0 +1,300 @@
++/*
++ * Driver for the SABRE ESS CODEC
++ *
++ * Author: Jaikumar <jaikumar@cem-solutions.net>
++ * 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/init.h>
++#include <linux/module.h>
++#include <linux/clk.h>
++#include <linux/kernel.h>
++#include <linux/pm_runtime.h>
++#include <linux/regmap.h>
++#include <linux/regulator/consumer.h>
++#include <linux/gcd.h>
++#include <sound/soc.h>
++#include <sound/soc-dapm.h>
++#include <sound/pcm_params.h>
++#include <sound/tlv.h>
++
++#include "sabre-ess.h"
++
++struct sabre_ess_priv {
++ struct regmap *regmap;
++ int fmt;
++};
++
++static const struct reg_default sabre_ess_reg_defaults[] = {
++ { SABRE_ESS_RESET, 0x00 },
++ { SABRE_ESS_VOLUME_1, 0xF0 },
++ { SABRE_ESS_VOLUME_2, 0xF0 },
++ { SABRE_ESS_MUTE, 0x00 },
++ { SABRE_ESS_DSP_PROGRAM, 0x04 },
++ { SABRE_ESS_DEEMPHASIS, 0x00 },
++ { SABRE_ESS_DOP, 0x01 },
++ { SABRE_ESS_FORMAT, 0xb4 },
++};
++
++static const char * const sabre_ess_dsp_program_texts[] = {
++ "Linear Phase Fast Roll-off Filter",
++ "Linear Phase Slow Roll-off Filter",
++ "Minimum Phase Fast Roll-off Filter",
++ "Minimum Phase Slow Roll-off Filter",
++ "Apodizing Fast Roll-off Filter",
++ "Corrected Minimum Phase Fast Roll-off Filter",
++ "Brick Wall Filter",
++};
++
++static const unsigned int sabre_ess_dsp_program_values[] = {
++ 0,
++ 1,
++ 2,
++ 3,
++ 4,
++ 6,
++ 7,
++};
++
++static SOC_VALUE_ENUM_SINGLE_DECL(sabre_ess_dsp_program,
++ SABRE_ESS_DSP_PROGRAM, 0, 0x07,
++ sabre_ess_dsp_program_texts,
++ sabre_ess_dsp_program_values);
++
++static const char * const sabre_ess_deemphasis_texts[] = {
++ "Bypass",
++ "32kHz",
++ "44.1kHz",
++ "48kHz",
++};
++
++static const unsigned int sabre_ess_deemphasis_values[] = {
++ 0,
++ 1,
++ 2,
++ 3,
++};
++
++static SOC_VALUE_ENUM_SINGLE_DECL(sabre_ess_deemphasis,
++ SABRE_ESS_DEEMPHASIS, 0, 0x03,
++ sabre_ess_deemphasis_texts,
++ sabre_ess_deemphasis_values);
++
++static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(master_tlv, -12700, 0);
++
++static const struct snd_kcontrol_new sabre_ess_controls[] = {
++ SOC_DOUBLE_R_TLV("Master Playback Volume", SABRE_ESS_VOLUME_1,
++ SABRE_ESS_VOLUME_2, 0, 255, 1, master_tlv),
++ SOC_DOUBLE("Master Playback Switch", SABRE_ESS_MUTE, 0, 0, 1, 1),
++ SOC_ENUM("DSP Program Route", sabre_ess_dsp_program),
++ SOC_ENUM("Deemphasis Route", sabre_ess_deemphasis),
++ SOC_SINGLE("DoP Playback Switch", SABRE_ESS_DOP, 0, 1, 1)
++};
++
++static bool sabre_ess_readable_register(struct device *dev, unsigned int reg)
++{
++ switch (reg) {
++ case SABRE_ESS_CHIP_ID_REG:
++ return true;
++ default:
++ return reg < 0xff;
++ }
++}
++
++static int sabre_ess_hw_params(struct snd_pcm_substream *substream,
++ struct snd_pcm_hw_params *params,
++ struct snd_soc_dai *dai)
++{
++ struct snd_soc_codec *codec = dai->codec;
++ struct sabre_ess_priv *sabre_ess = snd_soc_codec_get_drvdata(codec);
++ int fmt = 0;
++ int ret;
++
++ dev_dbg(codec->dev, "hw_params %u Hz, %u channels\n",
++ params_rate(params),
++ params_channels(params));
++
++ switch (sabre_ess->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
++ case SND_SOC_DAIFMT_CBM_CFM: // master
++ if (params_channels(params) == 2)
++ fmt = SABRE_ESS_CHAN_STEREO;
++ else
++ fmt = SABRE_ESS_CHAN_MONO;
++
++ switch (params_width(params)) {
++ case 16:
++ fmt |= SABRE_ESS_ALEN_16;
++ break;
++ case 24:
++ fmt |= SABRE_ESS_ALEN_24;
++ break;
++ case 32:
++ fmt |= SABRE_ESS_ALEN_32;
++ break;
++ default:
++ dev_err(codec->dev, "Bad frame size: %d\n",
++ params_width(params));
++ return -EINVAL;
++ }
++
++ switch (params_rate(params)) {
++ case 44100:
++ fmt |= SABRE_ESS_RATE_44100;
++ break;
++ case 48000:
++ fmt |= SABRE_ESS_RATE_48000;
++ break;
++ case 88200:
++ fmt |= SABRE_ESS_RATE_88200;
++ break;
++ case 96000:
++ fmt |= SABRE_ESS_RATE_96000;
++ break;
++ case 176400:
++ fmt |= SABRE_ESS_RATE_176400;
++ break;
++ case 192000:
++ fmt |= SABRE_ESS_RATE_192000;
++ break;
++ case 352800:
++ fmt |= SABRE_ESS_RATE_352800;
++ break;
++ case 384000:
++ fmt |= SABRE_ESS_RATE_384000;
++ break;
++ default:
++ dev_err(codec->dev, "Bad sample rate: %d\n",
++ params_rate(params));
++ return -EINVAL;
++ }
++
++ ret = regmap_write(sabre_ess->regmap, SABRE_ESS_FORMAT, fmt);
++ if (ret != 0) {
++ dev_err(codec->dev, "Failed to set format: %d\n", ret);
++ return ret;
++ }
++ break;
++
++ default:
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
++static int sabre_ess_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
++{
++ struct snd_soc_codec *codec = dai->codec;
++ struct sabre_ess_priv *sabre_ess = snd_soc_codec_get_drvdata(codec);
++
++ sabre_ess->fmt = fmt;
++
++ return 0;
++}
++
++static const struct snd_soc_dai_ops sabre_ess_dai_ops = {
++ .hw_params = sabre_ess_hw_params,
++ .set_fmt = sabre_ess_set_fmt,
++};
++
++static struct snd_soc_dai_driver sabre_ess_dai = {
++ .name = "sabre-ess",
++ .playback = {
++ .stream_name = "Playback",
++ .channels_min = 2,
++ .channels_max = 2,
++ .rates = SNDRV_PCM_RATE_CONTINUOUS,
++ .rate_min = 44100,
++ .rate_max = 384000,
++ .formats = SNDRV_PCM_FMTBIT_S16_LE |
++ SNDRV_PCM_FMTBIT_S32_LE
++ },
++ .ops = &sabre_ess_dai_ops,
++};
++
++static struct snd_soc_codec_driver sabre_ess_codec_driver = {
++ .idle_bias_off = false,
++
++ .component_driver = {
++ .controls = sabre_ess_controls,
++ .num_controls = ARRAY_SIZE(sabre_ess_controls),
++ },
++};
++
++static const struct regmap_range_cfg sabre_ess_range = {
++ .name = "Pages", .range_min = SABRE_ESS_VIRT_BASE,
++ .range_max = SABRE_ESS_MAX_REGISTER,
++ .selector_reg = SABRE_ESS_PAGE,
++ .selector_mask = 0xff,
++ .window_start = 0, .window_len = 0x100,
++};
++
++const struct regmap_config sabre_ess_regmap = {
++ .reg_bits = 8,
++ .val_bits = 8,
++
++ .ranges = &sabre_ess_range,
++ .num_ranges = 1,
++
++ .max_register = SABRE_ESS_MAX_REGISTER,
++ .readable_reg = sabre_ess_readable_register,
++ .reg_defaults = sabre_ess_reg_defaults,
++ .num_reg_defaults = ARRAY_SIZE(sabre_ess_reg_defaults),
++ .cache_type = REGCACHE_RBTREE,
++};
++EXPORT_SYMBOL_GPL(sabre_ess_regmap);
++
++int sabre_ess_probe(struct device *dev, struct regmap *regmap)
++{
++ struct sabre_ess_priv *sabre_ess;
++ unsigned int chip_id = 0;
++ int ret;
++
++ sabre_ess = devm_kzalloc(dev, sizeof(struct sabre_ess_priv),
++ GFP_KERNEL);
++ if (!sabre_ess)
++ return -ENOMEM;
++
++ dev_set_drvdata(dev, sabre_ess);
++ sabre_ess->regmap = regmap;
++
++ ret = regmap_read(regmap, SABRE_ESS_CHIP_ID_REG, &chip_id);
++ if ((ret != 0) || (chip_id != SABRE_ESS_CHIP_ID)) {
++ dev_err(dev, "Failed to read Chip or wrong Chip id: %d\n", ret);
++ return ret;
++ }
++ regmap_update_bits(regmap, SABRE_ESS_RESET, 0x01, 0x01);
++ msleep(10);
++
++ ret = snd_soc_register_codec(dev, &sabre_ess_codec_driver,
++ &sabre_ess_dai, 1);
++ if (ret != 0) {
++ dev_err(dev, "failed to register codec: %d\n", ret);
++ return ret;
++ }
++
++ return 0;
++}
++EXPORT_SYMBOL_GPL(sabre_ess_probe);
++
++void sabre_ess_remove(struct device *dev)
++{
++ snd_soc_unregister_codec(dev);
++ pm_runtime_disable(dev);
++}
++EXPORT_SYMBOL_GPL(sabre_ess_remove);
++
++MODULE_DESCRIPTION("ASoC SABRE ESS codec driver");
++MODULE_AUTHOR("Jaikumar <jaikumar@cem-solutions.net>");
++MODULE_LICENSE("GPL v2");
++
+--- /dev/null
++++ b/sound/soc/codecs/sabre-ess.h
+@@ -0,0 +1,62 @@
++/*
++ * Driver for the SABRE ESS CODEC
++ *
++ * Author: Jaikumar <jaikumar@cem-solutions.net>
++ * 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.
++ */
++
++#ifndef _SND_SOC_SABRE_ESS_
++#define _SND_SOC_SABRE_ESS_
++
++#include <linux/pm.h>
++#include <linux/regmap.h>
++
++#define SABRE_ESS_CHIP_ID 0x30
++#define SABRE_ESS_VIRT_BASE 0x100
++#define SABRE_ESS_PAGE 0
++
++#define SABRE_ESS_CHIP_ID_REG (SABRE_ESS_VIRT_BASE + 0)
++#define SABRE_ESS_RESET (SABRE_ESS_VIRT_BASE + 1)
++#define SABRE_ESS_VOLUME_1 (SABRE_ESS_VIRT_BASE + 2)
++#define SABRE_ESS_VOLUME_2 (SABRE_ESS_VIRT_BASE + 3)
++#define SABRE_ESS_MUTE (SABRE_ESS_VIRT_BASE + 4)
++#define SABRE_ESS_DSP_PROGRAM (SABRE_ESS_VIRT_BASE + 5)
++#define SABRE_ESS_DEEMPHASIS (SABRE_ESS_VIRT_BASE + 6)
++#define SABRE_ESS_DOP (SABRE_ESS_VIRT_BASE + 7)
++#define SABRE_ESS_FORMAT (SABRE_ESS_VIRT_BASE + 8)
++#define SABRE_ESS_COMMAND (SABRE_ESS_VIRT_BASE + 9)
++#define SABRE_ESS_MAX_REGISTER (SABRE_ESS_VIRT_BASE + 9)
++
++#define SABRE_ESS_FMT 0xff
++#define SABRE_ESS_CHAN_MONO 0x00
++#define SABRE_ESS_CHAN_STEREO 0x80
++#define SABRE_ESS_ALEN_16 0x10
++#define SABRE_ESS_ALEN_24 0x20
++#define SABRE_ESS_ALEN_32 0x30
++#define SABRE_ESS_RATE_11025 0x01
++#define SABRE_ESS_RATE_22050 0x02
++#define SABRE_ESS_RATE_32000 0x03
++#define SABRE_ESS_RATE_44100 0x04
++#define SABRE_ESS_RATE_48000 0x05
++#define SABRE_ESS_RATE_88200 0x06
++#define SABRE_ESS_RATE_96000 0x07
++#define SABRE_ESS_RATE_176400 0x08
++#define SABRE_ESS_RATE_192000 0x09
++#define SABRE_ESS_RATE_352800 0x0a
++#define SABRE_ESS_RATE_384000 0x0b
++
++extern const struct regmap_config sabre_ess_regmap;
++
++int sabre_ess_probe(struct device *dev, struct regmap *regmap);
++void sabre_ess_remove(struct device *dev);
++
++#endif /* _SND_SOC_SABRE_ESS_ */
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